CN113140407B

CN113140407B - Thin film capacitor

Info

Publication number: CN113140407B
Application number: CN202010046201.0A
Authority: CN
Inventors: 赵家松; 柴勇
Original assignee: Shanghai Jiuren Information Technology Co ltd
Current assignee: Shanghai Jiuren Information Technology Co ltd
Priority date: 2020-01-16
Filing date: 2020-01-16
Publication date: 2022-06-14
Anticipated expiration: 2040-01-16
Also published as: CN113140407A

Abstract

The present disclosure relates to a thin film capacitor, including: a first electrode; a second electrode; and a dielectric between the first and second electrodes. The dielectric includes: a first dielectric film, the first electrode disposed on a first surface of the first dielectric film; a tuning layer on the second surface of the first dielectric film; a second dielectric film, a third surface of the second dielectric film adjacent to the adjustment layer; and the conducting layer is positioned on the fourth surface of the second dielectric film. The thin film capacitor further includes: a third electrode and a fourth electrode electrically connected to the conductive layer. The first dielectric film and the second dielectric film are made of a polypropylene composite material, the polypropylene composite material comprises a filler and a base material, the base material is 500-800 parts of polypropylene resin, and the filler comprises: 100-200 parts of ruthenium dioxide, 80-120 parts of calcium carbonate and 40-60 parts of carbon fiber.

Description

Thin film capacitor

Technical Field

The present disclosure relates to a thin film capacitor.

Background

The polypropylene material is a thermoplastic resin obtained by polymerizing propylene. The polypropylene has good heat resistance, is easy to process and form, and is widely applied to industrial production and daily life. In addition, attempts have been made to add various fillers to polypropylene materials to further improve the properties of the polypropylene materials.

The film capacitor is a capacitor in which a metal foil is used as an electrode, and the metal foil is overlapped with a plastic film such as polyethylene, polypropylene, polystyrene, or polycarbonate from both ends and wound into a cylindrical shape.

Disclosure of Invention

According to an aspect of the present disclosure, there is provided a thin film capacitor including: a first electrode; a second electrode; and a dielectric between the first and second electrodes, wherein the dielectric comprises: a first dielectric film, the first electrode disposed on a first surface of the first dielectric film; a tuning layer on the second surface of the first dielectric film; a second dielectric film, a third surface of the second dielectric film adjacent to the adjustment layer; and a conductive layer on a fourth surface of the second dielectric film, the film capacitor further comprising: and the third electrode and the fourth electrode are electrically connected with the conducting layer, wherein the first dielectric film and the second dielectric film are made of a polypropylene composite material, the polypropylene composite material comprises a filler and a base material, the base material is 500-800 parts of polypropylene resin, and the filler comprises: 100-200 parts of ruthenium dioxide, 80-120 parts of calcium carbonate and 40-60 parts of carbon fiber.

In some embodiments according to the present disclosure, the filler further comprises: and (3) an additive.

In some embodiments according to the present disclosure, the additive comprises at least one of: corrosion inhibitors, sterically hindered phenols, adipic acid, calcium stearate, erucamide, 2, 5-dimethyl-2, 5-di (t-butylperoxy) -hexane, silica, sodium benzoate, sodium stearate, graphene and N-2 (2-hydroxyethyl).

In some embodiments according to the present disclosure, the corrosion inhibitor contains sodium nitrite and sodium hydroxide.

In some embodiments according to the present disclosure, the amount of the corrosion inhibitor is 1.14-1.21 parts.

In some embodiments according to the present disclosure, the sterically hindered phenol comprises pentaerythritol tetrakis [ β - (3, 5-di-tert-butyl-4-hydroxyphenyl) propionate ].

In some embodiments according to the present disclosure, the mass ratio of the erucamide to the sterically hindered phenol is 2: 1, and the amount of the stereo hindered phenol is 0.3-0.5 part.

In some embodiments according to the present disclosure, the ratio by mass of the erucamide and the sterically hindered phenol is 1: 1, the amount of the ladybird lactam is 0.53-0.56 part.

In some embodiments according to the present disclosure, the adipic acid is in an amount of 1.32 to 1.38 parts.

In some embodiments according to the present disclosure, the amount of calcium stearate is 1 to 1.07 parts.

In some embodiments according to the present disclosure, the amount of 2, 5-dimethyl-2, 5-di (t-butylperoxy) -hexane is 0.80-0.87 parts.

In some embodiments according to the present disclosure, the amount of silica is 2.0-2.2 parts

In some embodiments according to the present disclosure, the amount of sodium benzoate is 1.24-1.44 parts.

In some embodiments according to the present disclosure, the amount of sodium stearate is 0.2-0.3 parts.

In some embodiments according to the present disclosure, the amount of graphene is 1.1 parts to 1.5 parts.

In some embodiments according to the present disclosure, the amount of N-2 (2-hydroxyethyl) is 0.78 to 0.91 parts.

In some embodiments according to the present disclosure, the calcium carbonate is nano calcium carbonate.

In some embodiments according to the present disclosure, the material of the first dielectric film is the same as the material of the second dielectric film.

In some embodiments according to the present disclosure, the material of the adjustment layer is a zinc-tungsten alloy, a zinc-manganese alloy, or a tungsten-manganese alloy.

In some embodiments according to the present disclosure, the mass ratio of zinc and tungsten in the zinc-tungsten alloy is 300:0.98 to 300: 1.02.

In some embodiments according to the present disclosure, a width of the adjustment layer is less than a width of the first dielectric film.

In some embodiments according to the present disclosure, the width of the conductive layer is smaller than the width of the second dielectric film, and both sides of the second surface of the second dielectric film are exposed.

In some embodiments according to the present disclosure, the conductive layer is made of a metal material.

In some embodiments according to the present disclosure, the metal material is one of aluminum, copper, silver, gold, zinc.

In some embodiments according to the present disclosure, the dielectric further comprises: a third dielectric film disposed between the second electrode and the conductive layer.

In some embodiments according to the present disclosure, the thin film capacitor may further include: a fourth dielectric film arranged such that the second electrode is located between the third and fourth dielectric films.

According to another aspect of the present disclosure, there is provided a method of manufacturing the above-described thin film capacitor according to the present disclosure, including: forming a first electrode on a first surface of a first dielectric film; forming the adjustment layer on the second surface of the first dielectric film; forming the conductive layer on a fourth surface of a second dielectric film; forming a third electrode and a fourth electrode such that the third electrode and the fourth electrode are electrically connected to the conductive layer; forming a second electrode on a sixth surface of the third dielectric film; providing a fourth dielectric film; and superposing the first dielectric film, the second dielectric film, the third dielectric film and the fourth dielectric film together, wherein the adjusting layer is adjacent to the third surface of the second dielectric film, the conductive layer is adjacent to the fifth surface of the third dielectric film, and the fourth dielectric film is adjacent to the second electrode.

According to still another aspect of the present disclosure, there is provided a method of using the above-mentioned thin film capacitor according to the present disclosure, including: electrically connecting the first electrode and the second electrode into a circuit; applying a direct current voltage between the third electrode and the fourth electrode; and adjusting the value of the direct current voltage, thereby changing the capacitance value of the film capacitor.

Other features of the present disclosure and advantages thereof will become more apparent from the following detailed description of exemplary embodiments of the present disclosure.

Drawings

Fig. 1 illustrates a cross-sectional view of a capacitor according to an embodiment of the present disclosure.

Fig. 2 illustrates a cross-sectional view of a thin film capacitor according to an embodiment of the present disclosure.

Fig. 3 illustrates a cross-sectional view of a thin-film capacitor according to an embodiment of the present disclosure.

Fig. 4 illustrates a cross-sectional view of a thin-film capacitor according to an embodiment of the present disclosure.

Fig. 5 shows a schematic diagram of a film capacitor after unrolling, according to an embodiment of the disclosure.

Fig. 6 shows a schematic diagram of a manner of use according to an embodiment of the present disclosure.

Fig. 7 shows a flow chart of a method of manufacturing a thin film capacitor according to an embodiment of the present disclosure.

Fig. 8 shows a test chart of the relationship of alternating current to direct voltage of the thin film capacitor according to an embodiment of the present disclosure.

Fig. 9 shows a schematic diagram of a thin film capacitor according to an embodiment of the present disclosure.

Detailed Description

Various exemplary embodiments of the present disclosure will be described in detail below. It should be noted that: the relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present disclosure unless specifically stated otherwise.

The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the disclosure, its application, or uses. That is, the structures and methods herein are shown by way of example to illustrate different embodiments of the structures and methods of the present disclosure. Those skilled in the art will understand, however, that they are merely illustrative of exemplary ways in which the disclosure may be practiced and not exhaustive. Furthermore, the figures are not necessarily to scale, some features may be exaggerated to show details of particular components.

Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate.

In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values.

Definition of terms

In the present disclosure, the term "composite material" is a solid material composed of two or more pure substances or homogeneous substances. Wherein each component also retains its own characteristic. The purpose of using composite materials is often to achieve a combination of properties that are superior to the individual component materials. The composite materials are all of multiphase structure.

In the present disclosure, the term "matrix material" refers to a matrix material of the composite material, i.e. a material in the composite material as a continuous phase, and is divided into a polymer matrix, a metal matrix, and an inorganic non-metal matrix. The matrix material has the functions of bonding, balancing load, dispersing load and protecting the reinforcing material.

In the disclosure herein, the term "particle size" refers to the average diameter of the doped particles used in the present invention, and the method of measuring the particle size can be obtained by a method known to those skilled in the art using a commercially available particle size distribution meter.

All raw materials are calculated according to mass ratio and can be obtained in the market. All instruments are commercially available and all testing methods are known to those skilled in the art.

In some embodiments according to the present disclosure, a polypropylene composite and a method of making the same are provided. The preparation method of the polypropylene composite material comprises the following steps: the filler is blended into a matrix material, wherein the matrix material is 500-800 parts of polypropylene resin, and the filler comprises: 100-200 parts of ruthenium dioxide, 80-120 parts of calcium carbonate and 40-60 parts of carbon fiber.

In addition, in some embodiments according to the present disclosure, other fillers may also be added. For example, the filler may comprise a catalyst, such as a polyurethane, a molecular sieve (such as a 3A molecular sieve), an alkylaluminum (such as triethylaluminum), an electron donor (such as cyclohexyl-methyl-dimethoxysilane), and the like, and one or more of these catalysts may be selected as the catalyst.

Furthermore, in some embodiments according to the present disclosure, the filler may also include various additives, such as one or more of corrosion inhibitors, sterically hindered phenols, adipic acid, calcium stearate, erucamide, 2, 5-dimethyl-2, 5-di (t-butylperoxy) -hexane, silica, sodium benzoate, sodium stearate, graphene, and N-2 (2-hydroxyethyl) and the like.

The composite material and the method for preparing the same according to the present disclosure will be described in detail with reference to specific examples.

Example 1

500 parts by mass of polypropylene is selected as a matrix of the material, and 100 parts by mass of ruthenium dioxide (RuO)₂) 80 parts by mass of nano calcium carbonate powder particles and 40 parts by mass of carbon fibers as fillers.

First, polypropylene is charged into a polymerizer, and the polymerizer is heated to, for example, 235 ℃ under a pressure of 0.7MPa to melt the polypropylene into a liquid state.

And then adding ruthenium dioxide, nano calcium carbonate and carbon fiber into the polymerization kettle. In some exemplary embodiments, the ruthenium dioxide, the nanocalcium carbonate and the carbon fibers may be directly added in a solid state, or may be melted into a liquid state and then added to the polypropylene in a liquid state.

For example, ruthenium dioxide has a melting point of about 1200 deg.C, calcium carbonate has a melting point of about 1339 deg.C, and carbon fibers have a melting point of about 2700 deg.C. Thus, the individual fillers can be melted to a liquid state in different containers and then gradually incorporated into the liquid polypropylene. Simultaneously, the polypropylene can be continuously stirred, so that the filler can be doped more quickly and uniformly.

It should be understood that the ruthenium dioxide herein can be either anhydrous ruthenium oxide or an aqueous ruthenium oxide complex (RuO)₂·nH₂O)。

And then, adding the materials in the polymerization kettle into a granulator to prepare a master batch of the composite material.

In addition, in some exemplary embodiments according to the present disclosure, the material flowing out of the polymerizer may be recycled and separated.

For example, the contents of the polymerizer may be fed to a flash tank, through which unreacted polymer, propylene, and other volatile materials are removed. Unreacted polymer, propylene and volatile matters can be cooled and frozen into liquid state and then are recycled through the top of the fractionating tower. A complexing agent such as 18% by mass of an alcohol (e.g., ethylene glycol, propanol, butanol, or acetylacetone) may be added to the composite slurry after the removal treatment. In addition, in some exemplary embodiments, when isopropanol is used as a complexing agent, HCl may also be contained in the isopropanol at a mass fraction of 0.1% to 1%, which may improve extraction efficiency. The metals in the slurry can be converted to a complex or alkoxide at a certain temperature (e.g., 60 ℃) by a complexing agent, and the complex can be transferred to an aqueous phase through a water washing treatment, thereby being separated from the polypropylene composite according to the present disclosure.

Films made from the composite materials according to the above embodiments of the present disclosure have good performance parameters. The process for preparing the thin film is briefly described below.

First, a slab of the composite material is prepared. For example, the above-mentioned master batch is fed into a hopper of an extruder, plasticized by a screw, and extruded into a sheet form by, for example, a T-die. The sheet depth can be controlled, for example, at about 0.6mm and the extruder temperature can be controlled, for example, at about 260 ℃. The slab extruded from the extruder is closely fitted by an air knife to a cooling roller, which may be water-cooled, and the water temperature may be controlled to, for example, about 22 ℃. Thereby, a thick sheet of the composite material can be obtained.

Then, the thick sheet was stretched to obtain a film. In one embodiment according to the present disclosure, the slab may be biaxially stretched.

For example, the slab may be first preheated by the preheating rollers such that the temperature of the slab is raised to, for example, 150 ℃ -. Next, the longitudinally stretched film sheet is transversely stretched using a tenter.

It will be appreciated that the longitudinal stretch of a slab of composite material is related to its thickness. For example, when the thickness of the slab is 0.6mm, the longitudinal stretching magnification may be, for example, 50 times; when the thickness of the slab is 1mm, the longitudinal stretching magnification may be, for example, 60 times.

Table 1 lists some performance parameters of films made with the polypropylene composites of the examples of the present disclosure.

As can be seen from table 1 above, films of polypropylene composites prepared according to examples of the present disclosure have good performance parameters.

Example 2

800 parts by mass of polypropylene are selected as a matrix of the material, and 200 parts by mass of ruthenium dioxide (RuO)₂) 120 parts of nano calcium carbonate powder particles and 60 parts of carbon fibers are used as fillers.

First, polypropylene is added to a polymerizer, which is heated to, for example, 250 ℃ to melt the polypropylene into a liquid state.

And then adding ruthenium dioxide, nano calcium carbonate and carbon fiber into the polymerization kettle. Similarly to example 1, solid fillers such as ruthenium dioxide, nano calcium carbonate and carbon fiber may be melted into a liquid state and then added to polypropylene in the liquid state.

In addition, a protective gas may be added to the polymerization vessel. For example, hydrogen may be fed to the polymerizer, the flow rate of hydrogen may be controlled to, for example, 4 to 6L/min, and the pressure in the polymerizer may be controlled to, for example, 4.5 GPaG.

Then, the materials in the polymerization kettle are added into a granulator to prepare the master batch of the composite material.

Films made from the composite materials according to the above embodiments of the present disclosure have good performance parameters. The specific film preparation process is similar to that of example 1, and the details of the disclosure are omitted.

Table 2 lists some performance parameters of films made with the polypropylene composites of the examples of the present disclosure.

As can be seen from table 2 above, films of polypropylene composites prepared according to examples of the present disclosure have good performance parameters.

Example 3

600 parts by mass of polypropylene are selected as a matrix of the material, and 130 parts by mass of ruthenium dioxide (RuO) are selected₂) 90 parts of nano calcium carbonate powder particles, 45 parts of carbon fibers and 0.2 part of polyurethane as fillers.

First, polypropylene and 0.2 part of polyurethane (for example, polyurethane powder manufactured by MONTELL) as a catalyst were added to a polymerizer, and the polymerizer was heated to 250 ℃ to melt the polypropylene into a liquid state.

Then ruthenium dioxide, nano calcium carbonate and carbon fiber are added into a polymerization kettle. Similarly to example 1, the solid fillers such as ruthenium dioxide, nano calcium carbonate and carbon fiber may be melted into a liquid state and then added to the liquid polypropylene.

In addition, hydrogen may be fed to the polymerizer, and the flow rate of hydrogen may be controlled to 4 to 6L/min, and the pressure in the polymerizer may be controlled to, for example, 4.5 GPaG.

In the embodiment, the flexibility and resilience are higher; the rubber has excellent oil resistance, solvent resistance, water resistance and fire resistance, higher flexibility and rebound resilience, and excellent oil resistance, solvent resistance, water resistance and fire resistance.

Table 3 lists some performance parameters of films made with the polypropylene composites of the examples of the present disclosure.

As can be seen from table 3 above, films of polypropylene composites prepared according to examples of the present disclosure have good performance parameters.

Example 4

Selecting 600 parts by mass of polypropylene as a matrix of the material, and selecting 150 parts by mass of ruthenium dioxide (RuO)₂) 100 parts of nano calcium carbonate powder particles, 50 parts of carbon fibers, 0.3 part of triethyl aluminum and 0.2 part of polyurethane as fillers.

First, polypropylene is charged into a polymerizer, and 0.2 part of polyurethane (e.g., polyurethane powder manufactured by MONTELL) is added as a catalyst, and the polymerizer is heated to, for example, 235 ℃ to melt the polypropylene into a liquid state.

Ruthenium dioxide, nano calcium carbonate, carbon fiber, and triethylaluminum (e.g., liquid triethylaluminum produced by TEAL corporation) are then added to the polymerization kettle. Similarly to example 1, the solid fillers such as ruthenium dioxide, nano calcium carbonate and carbon fiber may be melted into a liquid state and then added to the liquid polypropylene.

In this embodiment, the addition of an aluminum alkyl (e.g., triethylaluminum) can increase the composite's resistance to afterburning, dispersion, and electrical insulation.

Table 4 lists some performance parameters of films made with the polypropylene composites of the examples of the present disclosure.

As can be seen from table 4 above, films of polypropylene composites prepared according to examples of the present disclosure have good performance parameters.

Example 5

Selecting 600 parts of polypropylene as a base material, and selecting 150 parts of ruthenium dioxide (RuO)₂) 100 parts of nano calcium carbonate powder particles, 50 parts of carbon fibers, 0.2 part of triethyl aluminum, 0.2 part of polyurethane and 0.01 part of cyclohexyl-methyl-dimethoxysilane as fillers.

First, polypropylene is charged into a polymerizer, and 0.2 part of polyurethane (e.g., polyurethane powder manufactured by MONTELL) is added as a catalyst, and the polymerizer is heated to, for example, 245 ℃ to melt the polypropylene into a liquid state.

Ruthenium dioxide, nano-calcium carbonate, carbon fiber, triethylaluminum (for example, liquid triethylaluminum produced by TEAL corporation) and cyclohexyl-methyl-dimethoxysilane were then charged into the polymerization vessel. Similarly to example 1, the solid fillers such as ruthenium dioxide, nano calcium carbonate and carbon fiber may be melted into a liquid state and then added to the liquid polypropylene.

In addition, hydrogen may be fed to the polymerizer, and the flow rate of hydrogen may be controlled, for example, to 4 to 6L/min, and the pressure in the polymerizer may be controlled, for example, to 4.5 GPaG.

Cyclohexyl-methyl-dimethoxysilane is added into polypropylene as an electron donor to adjust the isotacticity of the composite material.

Table 5 lists some performance parameters of films made with the polypropylene composites of the examples of the present disclosure.

As can be seen from table 5 above, films of polypropylene composites prepared according to examples of the present disclosure have good performance parameters.

Example 6

Selecting 700 parts of polypropylene as a base material, and selecting 180 parts of ruthenium dioxide (RuO)₂) 110 parts of nano calcium carbonate powder particles, 55 parts of carbon fibers, 0.3 part of triethyl aluminum, 0.2 part of polyurethane and 0.05 part of cyclohexyl-methyl-dimethoxysilane as fillers.

First, polypropylene is charged into a polymerizer, and polyurethane (e.g., polyurethane powder manufactured by MONTELL) is added as a catalyst, and the polymerizer is heated to, for example, 245 ℃ to melt the polypropylene into a liquid state.

In addition, hydrogen and carbon monoxide gases may also be added to the polymerization vessel as protective gases. The flow rate of hydrogen gas may be controlled to 4 to 6L/min, the flow rate of carbon monoxide gas may be controlled to, for example, 5ppm, and the pressure in the polymerizer may be controlled to, for example, 4.5 GPaG.

Table 6 lists some performance parameters of films made with the polypropylene composites of the examples of the present disclosure.

As can be seen from table 6 above, films of polypropylene composites prepared according to examples of the present disclosure have good performance parameters.

Example 7

Selecting 700 parts of polypropylene as a base material, and selecting 180 parts of ruthenium dioxide (RuO)₂) 110 parts of nano calcium carbonate powder particles, 55 parts of carbon fibers, 0.3 part of triethyl aluminum, 0.22 part of polyurethane and 0.01 part of cyclohexyl-methyl-dimethoxysilane as fillers.

In addition, hydrogen, carbon monoxide and carbon dioxide gas may be added to the polymerizer as a protective gas. The flow rate of hydrogen gas may be controlled to 4 to 6L/min, the flow rate of carbon monoxide gas to 5ppm, for example, and the flow rate of carbon dioxide gas to 5ppm, for example. The pressure in the polymerizer may be controlled, for example, at 4.5 GPaG.

Table 7 lists some performance parameters for films made using the polypropylene composites of the examples of the present disclosure.

As can be seen from table 7 above, films of polypropylene composites prepared according to examples of the present disclosure have good performance parameters.

Example 8

Selecting 700 parts of polypropylene as a base material, and selecting 180 parts of ruthenium dioxide (RuO)₂) 110 parts of nano calcium carbonate powder particles, 55 parts of carbon fibers, 0.3 part of triethylaluminum, 0.22 part of polyurethane, 0.01 part of cyclohexyl-methyl-dimethoxysilane and 0.78 part of N-N-2 (2-hydroxyethyl) as fillers.

Ruthenium dioxide, nano calcium carbonate, carbon fiber, triethylaluminum (e.g., liquid triethylaluminum produced by TEAL corporation), cyclohexyl-methyl-dimethoxysilane, and N-2 (2-hydroxyethyl) (e.g., ATMER 163) were then added to the polymerization vessel. Similarly to example 1, solid fillers such as ruthenium dioxide, nano calcium carbonate and carbon fiber may be melted into a liquid state and then added to liquid polypropylene.

In this example, the addition of N-N-2 (2-hydroxyethyl) can impart antistatic properties to the polypropylene composite according to the present disclosure.

Table 8 lists some performance parameters of films made with the polypropylene composites of the examples of the present disclosure.

As can be seen from table 8 above, films of polypropylene composites prepared according to examples of the present disclosure have good performance parameters.

Example 9

Selecting 700 parts of polypropylene as a base material, and selecting 180 parts of ruthenium dioxide (RuO)₂) 110 parts of nano calcium carbonate powder particles, 55 parts of carbon fibers, 0.1 part of triethyl aluminum, 0.22 part of polyurethane, 0.01 part of cyclohexyl-methyl-dimethoxysilane and 0.78 part of N-N-2 (2-hydroxyethyl) as fillers.

First, 0.83 parts of mineral fat and 0.88 parts of mineral oil are added to a polymerizer, and then polypropylene and polyurethane (for example, polyurethane powder manufactured by MONTELL) are added thereto, and the polymerizer is heated to, for example, 245 ℃ to melt the polypropylene into a liquid state.

Ruthenium dioxide, nano-calcium carbonate, carbon fiber, triethylaluminum (e.g., liquid triethylaluminum produced by TEAL corporation), cyclohexyl-methyl-dimethoxysilane, and N-2 (2-hydroxyethyl) (e.g., ATMER 163) were then added to the polymerization vessel. Similarly to example 1, the solid fillers such as ruthenium dioxide, nano calcium carbonate and carbon fiber may be melted into a liquid state and then added to the liquid polypropylene.

In this example, the addition of the mineral fat and the mineral oil makes it possible to avoid the liquid polypropylene and the resulting composite material from adhering to the inner wall of the polymerizer.

Table 9 lists some performance parameters of films made with the polypropylene composites of the examples of the present disclosure.

As can be seen from table 9 above, films of polypropylene composites prepared according to examples of the present disclosure have good performance parameters.

Example 10

Selecting 700 parts of polypropylene as a base material, and selecting 180 parts of ruthenium dioxide (RuO)₂) 110 parts of nano calcium carbonate powder particles, 55 parts of carbon fibers, 0.3 part of triethylaluminum, 0.22 part of polyurethane, 0.02 part of cyclohexyl-methyl-dimethoxysilane and 0.78 part of N-N-2 (2-hydroxyethyl) as fillers.

Table 10 lists some performance parameters for films made using the polypropylene composites of the examples of the present disclosure.

As can be seen from table 10 above, films of polypropylene composites prepared according to examples of the present disclosure have good performance parameters.

Example 11

Selecting 700 parts of polypropylene as a base material, and selecting 180 parts of ruthenium dioxide (RuO)₂) 110 parts of nano calcium carbonate powder particles, 55 parts of carbon fibers, 0.3 part of triethyl aluminum, 0.22 part of polyurethane, 0.01 part of cyclohexyl-methyl-dimethoxysilane and 0.78 part of N-N-2 (2-hydroxyethyl) as fillers.

First, 0.83 parts of mineral fat, 0.88 parts of mineral oil and 1.13 parts of ethylene glycol are added to a polymerizer, and then polypropylene and polyurethane (for example, polyurethane powder manufactured by MONTELL) are added thereto, and the polymerizer is heated to, for example, 245 ℃ to melt the polypropylene into a liquid state.

In this example, the ethylene glycol functions similarly to the mineral fat and the mineral oil, and the liquid polypropylene and the resulting composite material are prevented from adhering to the inner wall of the polymerizer.

Table 11 lists some performance parameters of films made with the polypropylene composites of the examples of the present disclosure.

As can be seen from table 11 above, films of polypropylene composites prepared according to examples of the present disclosure have good performance parameters.

Example 12

Selecting 700 parts of polypropylene as a base material, and selecting 180 parts of ruthenium dioxide (RuO)₂) 110 parts of nano calcium carbonate powder particles, 55 parts of carbon fibers, 0.3 part of triethyl aluminum, 0.22 part of polyurethane, 0.01 part of cyclohexyl-methyl-dimethoxysilane, 0.80 part of N-N-2 (2-hydroxyethyl) and 1.14 parts of NALCO 39-L as fillers.

Ruthenium dioxide, nano-calcium carbonate, carbon fiber, triethylaluminum (e.g., liquid triethylaluminum produced by TEAL corporation), cyclohexyl-methyl-dimethoxysilane, N-2 (2-hydroxyethyl) (e.g., ATMER 163), and NALCO 39-L were then added to the polymerization kettle. Similarly to example 1, the solid fillers such as ruthenium dioxide, nano calcium carbonate and carbon fiber may be melted into a liquid state and then added to the liquid polypropylene.

NALCO 39-L is a corrosion inhibitor, chemical name is sodium nitrite, and main component comprises 66% (by mass) of NaNO₂And 33% (mass%) NaOH. In this example, the addition of NALCO 39-L improves the corrosion protection of the jacketed water system of the plant.

Table 12 lists some performance parameters for films made using the polypropylene composites of the examples of the present disclosure.

As can be seen from table 12 above, films of polypropylene composites prepared according to examples of the present disclosure have good performance parameters.

Example 13

Selecting 700 parts of polypropylene as a base material, and selecting 180 parts of ruthenium dioxide (RuO)₂) 110 parts of nano calcium carbonate powder particles, 55 parts of carbon fibers, 0.3 part of triethyl aluminum, 0.22 part of polyurethane, 0.01 part of cyclohexyl-methyl-dimethoxysilane, 0.80 part of N-N-2 (2-hydroxyethyl), 1.14 parts of NALCO 39-L and 1 part of flaky 3A molecular sieve as fillers.

First, 0.85 parts of mineral fat, 0.88 parts of mineral oil and 1.13 parts of ethylene glycol are added to a polymerizer, and then polypropylene and polyurethane (for example, polyurethane powder manufactured by MONTELL) are added thereto, and the polymerizer is heated to, for example, 245 ℃ to melt the polypropylene into a liquid state.

Ruthenium dioxide, nano-calcium carbonate, carbon fiber, triethylaluminum (e.g., liquid triethylaluminum from TEAL), cyclohexyl-methyl-dimethoxysilane, N-N-2 (2-hydroxyethyl) (e.g., ATMER 163), NALCO 39-L, and 3A molecular sieves were then added to the polymerization kettle. Similarly to example 1, the solid fillers such as ruthenium dioxide, nano calcium carbonate and carbon fiber may be melted into a liquid state and then added to the liquid polypropylene.

In addition, hydrogen, carbon monoxide and carbon dioxide gas may be fed to the polymerizer as a protective gas. The flow rate of the hydrogen gas may be controlled to 4 to 6L/min, for example, the flow rate of the carbon monoxide gas to 5ppm and the flow rate of the carbon dioxide gas to 5 ppm. The pressure in the polymerization vessel can be controlled, for example, at 4.5 GPaG.

In this embodiment, the addition of molecular sieves reduces moisture, eliminates bubbles, and improves material uniformity and strength. Of course, other molecular sieves, such as 4A (sodium a type), 5A (calcium a type), 10Z (calcium Z type), 13Z (sodium Z type), sodium mordenite type, etc., may be added as the case requires.

Table 13 lists some performance parameters of films made with the polypropylene composites of the examples of the present disclosure.

As can be seen from table 13 above, films of polypropylene composites prepared according to examples of the present disclosure have good performance parameters.

It should be understood that in addition to the specific embodiments described in examples 1-13 above, various other additives may be added to the polypropylene composites according to the present disclosure, such as sterically hindered phenols, oxalic acid, calcium stearate, erucamide, 2, 5-dimethyl-2, 5-di (t-butylperoxy) -hexane, silica, sodium benzoate, sodium stearate, graphene, and the like.

One or more of the above additives may be added during the preparation of the polypropylene composite according to the present disclosure, thereby further improving the performance parameters of the polypropylene composite.

Example 14

700 parts of polypropylene are selected as a matrix of the material, and 180 parts of ruthenium dioxide (RuO2), 110 parts of nano calcium carbonate powder particles, 55 parts of carbon fibers, 0.3 part of triethylaluminum, 0.22 part of polyurethane, 0.01 part of cyclohexyl-methyl-dimethoxysilane, 0.82 part of N-N-2 (2-hydroxyethyl), 1.15 parts of NALCO 39-L, 2 parts of flaky 3A molecular sieve and a mixed solution of 0.666 part of calamine and 0.333 part of sterically hindered phenol are selected as fillers.

First, 0.85 parts of mineral fat, 0.89 parts of mineral oil and 1.13 parts of ethylene glycol are added to a polymerizer, and then polypropylene and polyurethane (for example, polyurethane powder manufactured by MONTELL) are added thereto, and the polymerizer is heated to, for example, 245 ℃ to melt the polypropylene into a liquid state.

Ruthenium dioxide, nano-calcium carbonate, carbon fiber, triethylaluminum (e.g., liquid triethylaluminum from TEAL), cyclohexyl-methyl-dimethoxysilane, N-N-2 (2-hydroxyethyl) (e.g., ATMER 163), NALCO 39-L, 3A molecular sieves, erucamide, and sterically hindered phenols (e.g., IRGANOX 1010) were then added to the polymerization kettle. Similarly to example 1, the solid fillers such as ruthenium dioxide, nano calcium carbonate and carbon fiber may be melted into a liquid state and then added to the liquid polypropylene.

IRGANOX 1010 comprises pentaerythritol tetrakis [ beta- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionate ] as a white crystalline powder, chemically stable, and in this example, it is resistant to oxidation by the addition of sterically hindered phenols.

In the present embodiment, the ratio of, for example, 2: 1, preparing a mixed solution of the erucamide and the sterically hindered phenol, and adding the mixed solution into a polymerization kettle.

Table 14 lists some performance parameters for films made with the polypropylene composites of the examples of the present disclosure.

As can be seen from table 14 above, films of polypropylene composites prepared according to examples of the present disclosure have good performance parameters.

Example 15

Selecting 700 parts of polypropylene as a base material, and selecting 180 parts of ruthenium dioxide (RuO)₂) 110 parts of nano calcium carbonate powder particles, 55 parts of carbon fibers, 0.3 part of triethylaluminum, 0.22 part of polyurethane, 0.01 part of cyclohexyl-methyl-dimethoxysilane, 0.82 part of N-N-2 (2-hydroxyethyl), 1.15 parts of NALCO 39-L, 2 parts of 3A molecular sieve crystals, 0.666 part of mixed liquid of erucyl lactam and 0.333 part of sterically hindered phenol, and 1.32 parts of adipic acid as fillers.

First, 0.85 parts of mineral fat, 0.89 parts of mineral oil and 1.15 parts of ethylene glycol are added to a polymerizer, and then polypropylene and polyurethane (for example, polyurethane powder manufactured by MONTELL) are added thereto, and the polymerizer is heated to, for example, 245 ℃ to melt the polypropylene into a liquid state.

Ruthenium dioxide, nano calcium carbonate, carbon fiber, triethylaluminum (e.g., liquid triethylaluminum from TEAL), cyclohexyl-methyl-dimethoxysilane, N-N-2 (2-hydroxyethyl) (e.g., ATMER 163), NALCO 39-L, 3A molecular sieve, sterically hindered phenol (e.g., IRGANOX 1010), and adipic acid are then added to the polymerization kettle. Similarly to example 1, the solid fillers such as ruthenium dioxide, nano calcium carbonate and carbon fiber may be melted into a liquid state and then added to the liquid polypropylene.

In addition, hydrogen, carbon monoxide and carbon dioxide gas may be fed to the polymerizer as a protective gas. The flow rate of hydrogen gas may be controlled to 4 to 6L/min, the flow rate of carbon monoxide gas to 5ppm, for example, and the flow rate of carbon dioxide gas to 5ppm, for example. The pressure in the polymerizer may be controlled, for example, at 4.5 GPaG.

In this example, adipic acid was added, which has a carboxyl group as the functional group and thus has the properties of a carboxyl group, such as salt formation, esterification, amidation, and the like. Meanwhile, as dicarboxylic acid, the adipic acid can be polycondensed with diamine or dihydric alcohol to form a high molecular polymer, the adipic acid is soft and durable in taste, and the pH value change is small in a large concentration range, so that the adipic acid is a good pH value regulator and the like.

Table 15 lists some performance parameters of films made with the polypropylene composites of the examples of the present disclosure.

As can be seen from table 15 above, films of polypropylene composites prepared according to examples of the present disclosure have good performance parameters.

Example 16

Selecting 700 parts of polypropylene as a base material, and selecting 180 parts of ruthenium dioxide (RuO)₂) 110 parts of nano calcium carbonate powder particles, 55 parts of carbon fibers, 0.3 part of triethyl aluminum, 0.24 part of polyurethane, 0.01 part of cyclohexyl-methyl-dimethoxysilane, 0.84 part of N-N-2 (2-hydroxyethyl), 1.17 parts of NALCO 39-L, 2 parts of 3A molecular sieve crystals, 1 part of a mixed solution of erucyl amide and 0.5 part of sterically hindered phenol, 1.32 parts of adipic acid and 1 part of calcium stearate as fillers.

Ruthenium dioxide, nano calcium carbonate, carbon fiber, triethylaluminum (e.g., liquid triethylaluminum from TEAL), cyclohexyl-methyl-dimethoxysilane, N-N-2 (2-hydroxyethyl) (e.g., ATMER 163), NALCO 39-L, 3A molecular sieve, sterically hindered phenol (e.g., IRGANOX 1010), adipic acid, and calcium stearate are then added to the polymerization kettle. Similarly to example 1, the solid fillers such as ruthenium dioxide, nano calcium carbonate and carbon fiber may be melted into a liquid state and then added to the liquid polypropylene.

In this example, calcium stearate was added for long-term heat stabilization, and was used in combination with zinc soap or epoxy compound for synergistic effect.

Table 16 lists some performance parameters of films made with the polypropylene composites of the examples of the present disclosure.

As can be seen from table 16 above, films of polypropylene composites prepared according to examples of the present disclosure have good performance parameters.

Example 17

700 parts of polypropylene are selected as a base body of the material, and 180 parts of ruthenium dioxide (RuO) are selected₂) 110 parts of nano calcium carbonate powder particles, 55 parts of carbon fibers, 0.3 part of triethyl aluminum, 0.24 part of polyurethane, 0.01 part of cyclohexyl-methyl-dimethoxysilane, 0.84 part of N-N-2 (2-hydroxyethyl), 1.17 part of NALCO 39-L, 2 parts of 3A molecular sieve crystals, 0.6 part of erucyl lactam and 0.3 part of sterically hindered phenolLiquid mixture, 1.34 parts of adipic acid, 1 part of calcium stearate and 1.6 parts of calabash polyamide as fillers.

Ruthenium dioxide, nano calcium carbonate, carbon fiber, triethylaluminum (e.g., liquid triethylaluminum from TEAL), cyclohexyl-methyl-dimethoxysilane, N-N-2 (2-hydroxyethyl) (e.g., ATMER 163), NALCO 39-L, 3A molecular sieves, sterically hindered phenols (e.g., IRGANOX 1010), adipic acid, calcium stearate, and erucamide (e.g., ERUCAMI DE) are then added to the polymerization kettle. Similarly to example 1, the solid fillers such as ruthenium dioxide, nano calcium carbonate and carbon fiber may be melted into a liquid state and then added to the liquid polypropylene.

In this example, the ladybird lactam is added as a lubricant, a slip agent, and an anti-blocking agent.

Films made from the composite materials according to the above embodiments of the present disclosure have good performance parameters. The specific film preparation process is similar to that of example 1 above, and the details of the disclosure are not repeated.

Table 17 lists some performance parameters for films made with the polypropylene composites of the examples of the present disclosure.

As can be seen from table 17 above, films of polypropylene composites prepared according to examples of the present disclosure have good performance parameters.

Example 18

Selecting 700 parts of polypropylene as a base material, and selecting 180 parts of ruthenium dioxide (RuO)₂) 110 parts of nano calcium carbonate powder particles, 55 parts of carbon fibers, 0.3 part of triethyl aluminum, 0.24 part of polyurethane, 0.01 part of cyclohexyl-methyl-dimethoxysilane, 0.86 part of N-N-2 (2-hydroxyethyl), 1.18 parts of NALCO 39-L, 2 parts of 3A molecular sieve crystals, 0.8 part of a mixed solution of erucyl lactam and 0.4 part of sterically hindered phenol, 1.34 parts of adipic acid, 1.02 part of calcium stearate and 1.6 parts of erucyl lactam as fillers.

First, 0.87 parts of mineral fat, 0.89 parts of mineral oil and 1.15 parts of ethylene glycol are added to a polymerizer, and then polypropylene and polyurethane (for example, polyurethane powder manufactured by MONTELL) are added thereto, and the polymerizer is heated to, for example, 245 ℃ to melt the polypropylene into a liquid state.

Ruthenium dioxide, nanocalcium carbonate, carbon fiber, triethylaluminum (e.g., liquid triethylaluminum from TEAL), cyclohexyl-methyl-dimethoxysilane, N-2 (2-hydroxyethyl) (e.g., ATMER 163), NALCO 39-L, 3A molecular sieve, sterically hindered phenol (e.g., IRGANOX 1010), adipic acid, calcium stearate, and ladelamide (e.g., IRGANOX B501W) are then added to the polymerization kettle. Similarly to example 1, the solid fillers such as ruthenium dioxide, nano calcium carbonate and carbon fiber may be melted into a liquid state and then added to the liquid polypropylene.

In addition, hydrogen, carbon monoxide and carbon dioxide gas may be added to the polymerizer as a protective gas. The flow rate of hydrogen gas may be controlled to 4 to 6L/min, the flow rate of carbon monoxide gas to 5ppm, for example, and the flow rate of carbon dioxide gas to 5ppm, for example. The pressure in the polymerization vessel can be controlled, for example, at 4.5 GPaG.

Table 18 lists some performance parameters for films made with the polypropylene composites of the examples of the present disclosure.

As can be seen from table 18 above, films of polypropylene composites prepared according to examples of the present disclosure have good performance parameters.

Example 19

Selecting 700 parts of polypropylene as a base material, and selecting 180 parts of ruthenium dioxide (RuO)₂) 110 parts of nano calcium carbonate powder particles, 55 parts of carbon fibers, 0.3 part of triethylaluminum, 0.22 part of polyurethane, 0.01 part of cyclohexyl-methyl-dimethoxysilane, 0.86 part of N-N-2 (2-hydroxyethyl), 1.18 parts of NALCO 39-L, 4 parts of 3A molecular sieve crystals, a mixed solution of 0.90 erucyl lactam and 0.45 part of sterically hindered phenol, 1.36 parts of adipic acid, 1.04 parts of calcium stearate, 1.9 parts of erucyl lactam and 0.80 part of 2, 5-dimethyl-2, 5-di (tert-butylperoxy) -hexane as fillers.

First, 0.87 parts of mineral fat, 0.88 parts of mineral oil and 1.17 parts of ethylene glycol are added to a polymerizer, and then polypropylene and polyurethane (for example, polyurethane powder manufactured by MONTELL) are added thereto, and the polymerizer is heated to, for example, 255 ℃ to melt the polypropylene into a liquid state.

Ruthenium dioxide, nano calcium carbonate, carbon fiber, triethylaluminum (e.g., liquid triethylaluminum from TEAL), cyclohexyl-methyl-dimethoxysilane, N-N-2 (2-hydroxyethyl) (e.g., ATMER 163), NALCO 39-L, 3A molecular sieves, sterically hindered phenols (e.g., IRGANOX 1010), adipic acid, calcium stearate, erucamide (e.g., ERUCAMI DE), and 2, 5-dimethyl-2, 5-di (t-butylperoxy) -hexane (e.g., LUPEROX 101) are then added to the polymerizer. Similarly to example 1, solid fillers such as ruthenium dioxide, nano calcium carbonate and carbon fiber may be melted into a liquid state and then added to liquid polypropylene.

In this example, 2, 5-dimethyl-2, 5-di (t-butylperoxy) -hexane) was added as a crosslinking agent.

Table 19 lists some performance parameters for films made with the polypropylene composites of the examples of the present disclosure.

As can be seen from table 19 above, films of polypropylene composites prepared according to examples of the present disclosure have good performance parameters.

Example 20

Selecting 700 parts of polypropylene as a base material, and selecting 180 parts of ruthenium dioxide (RuO)₂) 110 parts of nano calcium carbonate powder particles, 55 parts of carbon fibers, 0.3 part of triethylaluminum, 0.24 part of polyurethane, 0.01 part of cyclohexyl-methyl-dimethoxysilane, 0.88 part of N-N-2 (2-hydroxyethyl), 1.19 parts of NALCO 39-L, 4 parts of 3A molecular sieve crystal, 0.7 part of mixed solution of erucyl amide and 0.35 part of sterically hindered phenol, 1.36 parts of adipic acid, 1.04 parts of stearic acidCalcium, 1.9 parts of erucamide, 0.82 parts of 2, 5-dimethyl-2, 5-di (tert-butylperoxy) -hexane and 2 parts of silica particles as fillers.

Ruthenium dioxide, nano calcium carbonate, carbon fiber, triethylaluminum (e.g., liquid triethylaluminum from TEAL), cyclohexyl-methyl-dimethoxysilane, N-N-2 (2-hydroxyethyl) (e.g., ATMER 163), NALCO 39-L, 3A molecular sieves, sterically hindered phenols (e.g., IRGANOX 1010), adipic acid, calcium stearate, erucamide (e.g., ERUCAMI DE), 2, 5-dimethyl-2, 5-di (t-butylperoxy) -hexane (e.g., LUPEROX 101), and silica (e.g., SIPHON ERNAT 44) are then added to the polymerization kettle. Similarly to example 1, solid fillers such as ruthenium dioxide, nano calcium carbonate and carbon fiber may be melted into a liquid state and then added to liquid polypropylene.

In this embodiment, the addition of silica makes the composite resistant to high temperatures.

Table 20 lists some performance parameters for films made using the polypropylene composites of the examples of the present disclosure.

As can be seen from table 20 above, films of polypropylene composites prepared according to examples of the present disclosure have good performance parameters.

Example 21

Selecting 700 parts of polypropylene as a base material, and selecting 180 parts of ruthenium dioxide (RuO)₂) 110 parts of nano calcium carbonate powder particles, 55 parts of carbon fibers, 0.3 part of triethylaluminum, 0.24 part of polyurethane, 0.01 part of cyclohexyl-methyl-dimethoxysilane, 0.88 part of N-N-2 (2-hydroxyethyl), 1.19 parts of NALCO 39-L, 4 parts of 3A molecular sieve crystals, 0.53 part of a mixed solution of erucyl amide and 0.53 part of sterically hindered phenol, 1.36 parts of adipic acid, 1.06 parts of calcium stearate, 1.11 parts of erucyl amide, 0.84 part of 2, 5-dimethyl-2, 5-di (tert-butylperoxy) -hexane, 2 parts of silicon dioxide powder and 1.24 parts of

Sodium benzoate was used as filler.

First, 0.89 parts of mineral fat, 0.9 parts of mineral oil and 1.17 parts of ethylene glycol are added to a polymerizer, and then polypropylene and polyurethane (for example, polyurethane powder manufactured by MONTELL) are added thereto, and the polymerizer is heated to, for example, 255 ℃ to melt the polypropylene into a liquid state.

Ruthenium dioxide, nano calcium carbonate, carbon fiber, triethylaluminum (e.g., liquid triethylaluminum from TEAL), cyclohexyl-methyl-dimethoxysilane, N-2 (2-hydroxyethyl) (e.g., ATMER 163), NALCO 39-L, 3A molecular sieves, sterically hindered phenols (e.g., IRGANOX 1010), adipic acid, calcium stearate, erucamide (e.g., ERUCAMI DE), 2, 5-dimethyl-2, 5-di (t-butylperoxide) -hexane (e.g., LUPEROX 101), silica (e.g., SIPERNAT 44), and SODIUM benzoate (e.g., SODIUM benzoate) are then added to the polymerizer. Similarly to example 1, the solid fillers such as ruthenium dioxide, nano calcium carbonate and carbon fiber may be melted into a liquid state and then added to the liquid polypropylene.

In the embodiment, the sodium benzoate is added to prevent the composite material from going bad and souring, and the shelf life of the composite material is prolonged.

Further, in some embodiments according to the present disclosure, the ratio of 1: 1, preparing a mixed solution of the erucamide and the sterically hindered phenol, and then adding the mixed solution into a polymerization kettle.

Table 21 lists some performance parameters for films made using the polypropylene composites of the examples of the present disclosure.

As can be seen from table 21 above, films of polypropylene composites prepared according to examples of the present disclosure have good performance parameters.

Example 22

Selecting 700 parts of polypropylene as a base material, and selecting 180 parts of ruthenium dioxide (RuO)₂) 110 parts of nano calcium carbonate powder particles, 55 parts of carbon fibers, 0.3 part of triethylaluminum, 0.24 part of polyurethane, 0.01 part of cyclohexyl-methyl-dimethoxysilane, 0.91 part of N-N-2 (2-hydroxyethyl), 1.21 parts of NALCO 39-L, 4 parts of 3A molecular sieve crystals, 0.56 part of a mixed solution of erucyl amide and 0.56 part of sterically hindered phenol, 1.38 parts of adipic acid, 1.06 parts of calcium stearate, 1.11 parts of erucyl amide, 0.86 part of 2, 5-dimethyl-2, 5-di (tert-butylperoxy) -hexane, 2.2 parts of silica powder, 1.34 parts of sodium benzoate and 0.2 part of sodium stearate as fillers.

First, 0.89 parts of mineral fat, 0.9 parts of mineral oil and 1.17 parts of ethylene glycol are charged into a polymerization vessel, and then polypropylene and polyurethane (for example, polyurethane powder manufactured by MONTELL corporation) are added, and the polymerization vessel is heated to, for example, 255 ℃ to melt the polypropylene into a liquid state.

Ruthenium dioxide, nano calcium carbonate, carbon fiber, triethylaluminum (e.g., liquid triethylaluminum from TEAL), cyclohexyl-methyl-dimethoxysilane, N-2 (2-hydroxyethyl) (e.g., ATMER 163), NALCO 39-L, 3A molecular sieves, sterically hindered phenols (e.g., IRGANOX 1010), adipic acid, calcium STEARATE, erucamide (e.g., ERUCAMI DE), 2, 5-dimethyl-2, 5-di (t-butylperoxy) -hexane (e.g., LUPEROX 101), silica (e.g., SIPERNAT 44), SODIUM benzoate (e.g., SODIUM benzoate), and SODIUM STEARATE (e.g., SODIUM STEARATE) are then added to the polymerizer. Similarly to example 1, solid fillers such as ruthenium dioxide, nano calcium carbonate and carbon fiber may be melted into a liquid state and then added to liquid polypropylene.

In this example, sodium stearate was added to provide protection in the polymer film when used as a corrosion inhibitor.

Table 22 lists some performance parameters for films made using the polypropylene composites of the examples of the present disclosure.

As can be seen from table 22 above, films of polypropylene composites prepared according to examples of the present disclosure have good performance parameters.

Example 23

Selecting 700 parts of polypropylene as a base material, and selecting 180 parts of ruthenium dioxide (RuO)₂) 110 parts of nano calcium carbonate powder particles, 55 parts of carbon fibers, 0.3 part of triethylaluminum, 0.24 part of polyurethane, 0.01 part of cyclohexyl-methyl-dimethoxysilane, 0.91 part of N-N-2 (2-hydroxyethyl), 1.21 parts of NALCO 39-L, 4 parts of 3A molecular sieve crystals, 0.55 part of a mixed solution of erucamide and 0.55 part of sterically hindered phenol, 1.38 parts of adipic acid, 1.07 part of calcium stearate, 1.12 parts of erucamide, 0.87 part of 2, 5-dimethyl-2, 5-di (t-butylperoxy) -hexane, 2.2 parts of silica powder, 1.44 parts of sodium benzoate, 0.3 part of sodium stearate and 1.1 part of graphene as fillers.

Ruthenium dioxide, nano calcium carbonate, carbon fiber, triethylaluminum (e.g., liquid triethylaluminum from TEAL), cyclohexyl-methyl-dimethoxysilane, N-2 (2-hydroxyethyl) (e.g., ATMER 163), NALCO 39-L, 3A molecular sieves, sterically hindered phenols (e.g., IRGANOX 1010), adipic acid, calcium STEARATE, erucamide (e.g., ERUCAMI DE), 2, 5-dimethyl-2, 5-di (t-butylperoxy) -hexane (e.g., LUPEROX 101), silica (e.g., SIPERNAT 44), SODIUM benzoate (e.g., SODIUM benzoate), SODIUM STEARATE (e.g., SODIUM STEARATE), and graphene are then added to the polymerizer. Similarly to example 1, solid fillers such as ruthenium dioxide, nano calcium carbonate and carbon fiber may be melted into a liquid state and then added to liquid polypropylene.

In this embodiment, the addition of graphene can make the surface layer of the composite material film have 6-sided mesh due to the physical properties of graphene, and increase the volume ratio of the material.

Table 23 lists some performance parameters for films made with the polypropylene composites of the examples of the present disclosure.

As can be seen from table 23 above, films of polypropylene composites prepared according to examples of the present disclosure have good performance parameters.

Example 24

Selecting 700 parts of polypropylene as a base material, and selecting 180 parts of ruthenium dioxide (RuO)₂) 110 parts of nano calcium carbonate powder particles, 55 parts of carbon fibers, 0.3 part of triethylaluminum, 0.24 part of polyurethane, 0.01 part of cyclohexyl-methyl-dimethoxysilane, 0.91 part of N-N-2 (2-hydroxyethyl), 1.21 parts of NALCO 39-L, 4 parts of 3A molecular sieve crystals, 0.54 part of a mixed solution of erucyl amide and 0.54 part of sterically hindered phenol, 1.38 parts of adipic acid, 1.07 part of calcium stearate, 1.12 parts of erucyl amide, 0.87 part of 2, 5-dimethyl-2, 5-di (tert-butylperoxy) -hexane, 2.2 parts of silicon dioxide powder, 1.44 parts of sodium benzoate, 0.3 part of sodium stearate and 1.5 parts of graphene as fillers.

Table 24 lists some performance parameters of films made with the polypropylene composites of the examples of the present disclosure.

As can be seen from table 24 above, films of polypropylene composites prepared according to examples of the present disclosure have good performance parameters.

Example 25

700 parts of polypropylene are selected as a base body of the material, and 180 parts of ruthenium dioxide (RuO) are selected₂) 110 parts of nano calcium carbonate powder particles, 55 parts of carbon fibers, 0.3 part of triethylaluminum, 0.24 part of polyurethane, 0.01 part of cyclohexyl-methyl-dimethoxysilane, 0.91 part of N-N-2 (2-hydroxyethyl), 1.21 parts of NALCO 39-L, 4 parts of 3A molecular sieve crystals, 0.53 part of a mixed solution of erucamide and 0.53 part of sterically hindered phenol, 1.38 parts of adipic acid, 1.07 part of calcium stearate, 1.12 parts of erucamide, 0.87 part of 2, 5-dimethyl-2, 5-di (t-butyl peroxide) -hexane, 2.2 parts of silica powder, 1.44 parts of sodium benzoate, 0.3 part of sodium stearate and 1.3 parts of graphene as fillers.

Ruthenium dioxide, nano calcium carbonate, carbon fiber, triethylaluminum (e.g., liquid triethylaluminum from TEAL), cyclohexyl-methyl-dimethoxysilane, N-2 (2-hydroxyethyl) (e.g., ATMER 163), NALCO 39-L, 3A molecular sieves, sterically hindered phenols (e.g., IRGANOX 1010), adipic acid, calcium STEARATE, erucamide (e.g., ERUCAMI DE), 2, 5-dimethyl-2, 5-di (t-butylperoxy) -hexane (e.g., LUPEROX 101), silica (e.g., SIPERNAT 44), SODIUM benzoate (e.g., SODIUM benzoate), SODIUM STEARATE (e.g., SODIUM STEARATE), and graphene are then added to the polymerizer. Similarly to example 1, the solid fillers such as ruthenium dioxide, nano calcium carbonate and carbon fiber may be melted into a liquid state and then added to the liquid polypropylene.

Table 25 lists some performance parameters for films made with the polypropylene composites of the examples of the present disclosure.

As can be seen from table 25 above, films of polypropylene composites prepared according to examples of the present disclosure have good performance parameters.

The preparation of polypropylene composites according to the present disclosure is described above in connection with examples 1-25. It is to be understood that the present disclosure is not limited to the specific embodiments described above, and that various combinations of the above-described various fillers may also be employed.

In addition, in order to meet the requirement of industrial production, a plurality of polymerization kettles connected in series can be adopted, and the liquid polypropylene flows through the polymerization kettles in sequence. The various fillers mentioned above can be incorporated separately into the polypropylene in different polymerization vessels.

In some embodiments according to the present disclosure, the polypropylene composites according to the present disclosure described above may be employed in capacitors.

Fig. 1 shows a schematic diagram of a capacitor according to one embodiment of the present disclosure. As shown in fig. 1, the capacitor 100 includes: an upper plate 101, a lower plate 103, a dielectric 102 located between the upper plate 101 and the lower plate 103. Wherein the dielectric 102 is a polypropylene composite as described above in accordance with embodiments of the present disclosure.

Furthermore, polypropylene composites according to embodiments of the present disclosure may also be used in the manufacture of film capacitors. A film capacitor is a capacitor formed by winding a metal foil or the like into a cylindrical shape or by laminating a film (for example, a plastic film such as polyethylene, polypropylene, polystyrene, or polycarbonate) between two electrodes.

Figure 5 illustrates a schematic diagram of a film capacitor after unrolling, according to some embodiments of the present disclosure. As shown in fig. 5, the thin film capacitor may be composed of a plurality of thin films. For example, these films may include: a polymer film as a dielectric, and a metal foil or a metal plating as a capacitor electrode (electrode plate). After the respective layers of films are laminated together, the film capacitor is obtained by winding the films in the direction of arrow D. Next, the present disclosure will describe in detail the construction of the film capacitor according to some embodiments of the present disclosure in conjunction with a cross-sectional view of the film capacitor along AA'.

Fig. 2 shows a schematic diagram of the development of electrodes and dielectric films of a thin film capacitor according to an embodiment of the present disclosure. As shown in fig. 2, the film capacitor 200 includes a polypropylene film 203, and metal foils 201 and 203 on both sides of the polypropylene film 203, respectively. The metal foils 201 and 203 serve as two electrodes of the film capacitor 200, respectively, and the polypropylene film 203 serves as a dielectric material of the film capacitor 200, wherein the polypropylene film 203 can be manufactured using the polypropylene composite according to the above-described embodiments of the present disclosure.

In addition, the film capacitor 200 includes a film 204. The film 204 can prevent the metal foils 201 and 203 from being electrically connected to each other when the film capacitor 200 is formed by winding or laminating. For example, the film 204 may also be made of a polypropylene composite material according to embodiments of the present disclosure, or the film 204 may also be made of other dielectric materials, such as polypropylene (PP), polyethylene terephthalate (PET), polyethylene naphthalate (PEN), Polyphenylene Sulfide (PPs), Polytetrafluoroethylene (PTFE), Polystyrene (PS), Polycarbonate (PC), and the like.

Fig. 3 shows a schematic diagram of a thin film capacitor 300 according to an embodiment of the present disclosure. As shown in FIG. 3,

films

302 and 304 are similar to

films

202 and 204 shown in FIG. 2. The difference from the film capacitor 200 of fig. 2 is that the

electrodes

301 and 303 on both sides of the polypropylene film 302 are not formed of metal foils, but metal layers formed on both sides of the polypropylene film 302 by means of vacuum evaporation.

The film capacitor manufactured by the polypropylene composite material disclosed by the embodiment of the disclosure has the advantages of low cost and large unit capacity.

For example, in one embodiment according to the present disclosure, the film 302 in the film capacitor 300 is a film made of the polypropylene composite material described in embodiment 5, and has a thickness of 50 μm. The film 304 is a polypropylene film with a thickness of 20 μm. The

films

302 and 304 are the same size, i.e., both 75mm long and 7mm wide. A layer of aluminum is formed as

electrodes

301 and 303 on

films

302 and 304, respectively, by means of vacuum evaporation. The thin film capacitor 300 thus obtained was tested to have a capacitance of 1983.5 μ f. In contrast, the capacitance of a film capacitor using polypropylene film of the same size and thickness as the dielectric was only 300 μ f.

Fig. 4 illustrates a cross-sectional view of a thin-film capacitor, according to some embodiments of the present disclosure. As shown in fig. 4, the film capacitor 400 includes: a first electrode 401, a second electrode 403, a dielectric between the first electrode 401 and the second electrode 403, and a fourth dielectric film 404. The first electrode 401 and the second electrode 403 may be formed of metal foil or metal plating. The dielectric is composed of multiple layers of materials. In the embodiment shown in fig. 4, the dielectric layers include a first dielectric film 411, a regulation layer 412, a second dielectric film 413, a conductive layer 414, and a third dielectric film 415, which are sequentially arranged.

Wherein the first dielectric film 411 is made of the polypropylene composite according to the present disclosure described above. The first electrode 401 is located on one surface (first surface) of the first dielectric film 411, and the adjustment layer 412 is located on the other surface (second surface) of the first dielectric film 411.

The adjustment layer 412 may be a metal layer, and the adjustment layer 412 is formed on the second surface of the first dielectric film 411 by vacuum evaporation, for example. In some embodiments according to the present disclosure, the metal layer may be a zinc-tungsten alloy layer formed on the first dielectric film 411 by vacuum evaporation. In the zinc-tungsten alloy layer, the mass ratio of zinc to tungsten may be 300:0.98 to 300: 1.02. For example, in one exemplary embodiment, the mass ratio of zinc and tungsten may be 300:1. as shown in fig. 4, in order to avoid the adjustment layer from being electrically contacted with the outside, the width of the adjustment layer 412 is smaller than that of the first dielectric film 411, and a blank region (i.e., a region not covered by the adjustment layer 412) is left on both sides of the first dielectric film 411. Thus, the conductive lead terminal formed by spraying gold or the like can be electrically insulated from the adjustment layer 412 in the subsequent capacitor fabrication process.

The second dielectric film 413 may be made of the polypropylene composite according to the present disclosure described above. One surface (third surface) of the second dielectric film 413 is adjacent to the adjustment layer 412. In order to ensure that the adjustment layer 412 is electrically insulated from the outside, the width of the second dielectric film 413 is also larger than the width of the adjustment layer 412.

A conductive layer 414 is formed on the other surface (fourth surface) of the second dielectric film 413. The conductive layer 414 is formed of a conductive material, such as a metal material or the like. In some embodiments according to the present disclosure, the material of the conductive layer 414 may be, for example, one of aluminum, copper, silver, gold, or an alloy thereof. Further, as shown in fig. 4, both ends of the conductive layer 414 are also electrically connected to a third electrode 416 and a fourth electrode 417, respectively. As will be described later, the third electrode 416 and the fourth electrode 417 will be electrically connected to a direct current power source, thereby forming a stable electric field in the conductive layer 414. In some embodiments according to the present disclosure, the third electrode and the fourth electrode may be composed of wires, for example, in the case where the spread shape of the conductive layer 414 is a rectangle, the wires of the third electrode and the fourth electrode may be electrically connected to regions of the rectangular conductive layer 414 adjacent to the opposite corners, respectively, to form a certain electric field distribution over the entire conductive layer 414.

The third dielectric film 415 may be a polymer film such as a film made of polypropylene, polyethylene terephthalate, polyethylene naphthalate, polyphenylene sulfide, polytetrafluoroethylene, polystyrene, polycarbonate, or the like. One surface (fifth surface) of the third dielectric film 415 is adjacent to the conductive layer 414. On the other surface (sixth surface) of the third dielectric film 415, the second electrode 403 can be formed by vacuum evaporation, for example. The second electrode 403 is electrically insulated from the conductive layer 414 by a third dielectric film 415.

In addition, as shown in fig. 4, the film capacitor 400 further includes a fourth dielectric film 404. The fourth dielectric film 404 is adjacent to the second electrode 403 such that the second electrode 403 is located between the fourth dielectric film 404 and the third dielectric film 415. The fourth dielectric film 404 may be a polymer film such as a film made of polypropylene, polyethylene terephthalate, polyethylene naphthalate, polyphenylene sulfide, polytetrafluoroethylene, polystyrene, polycarbonate, or the like. The fourth dielectric film 404 may keep the first electrode 401 and the second electrode 403 electrically insulated while winding the layers to form the thin film capacitor 400.

The film capacitor 400 shown in fig. 4 is a capacitor whose capacitance value can be adjusted. After the layers of the film capacitor 400 are formed in the above-described structure, the film capacitor is manufactured through subsequent processes such as winding, metal spraying, and pin soldering.

Fig. 6 shows a schematic diagram of the manner in which the film capacitor 400 is used. As shown in fig. 6, the thin film capacitor 400 according to the embodiment of the present disclosure includes four pins, a first pin 621 electrically connected to the first electrode 401 of the thin film capacitor 400, a second pin 622 electrically connected to the second electrode 403 of the thin film capacitor 400, a third pin 623 electrically connected to the third electrode 416 of the thin film capacitor 400, and a fourth pin 624 electrically connected to the fourth electrode 417 of the thin film capacitor 400.

As can be understood from the above description of the film capacitor 400, the first pin 621 and the second pin 622 of the film capacitor 400 of the embodiment of the present disclosure correspond to two pins of a general capacitor, and the third pin 623 and the fourth pin 624 are pins unique to the film capacitor 400 according to the embodiment of the present disclosure. When the film capacitor 400 is used, the first pin 621 and the second pin 622 may be electrically connected to, for example, an AC power source AC or an AC/DC circuit (not shown) as a general capacitor, and the third pin 623 and the fourth pin 624 are electrically connected to both ends of a DC power source DC. By adjusting the DC power supply DC, the voltage applied between the third pin 623 and the fourth pin 624 may be varied, thereby varying the electric field across the conductive layer 414. As the electric field on the conductive layer 414 changes, the capacitance value of the thin film capacitor 400 changes.

Therefore, in using the thin film capacitor 400 according to the embodiment of the present disclosure, the first electrode and the second electrode may be electrically connected into a circuit like two electrodes of a general capacitor, a direct current voltage is applied between the third electrode and the fourth electrode, and by adjusting the value of the direct current voltage, the capacitance value of the thin film capacitor 400 may be changed.

Fig. 7 shows a flowchart of a method of manufacturing a thin film capacitor 400 according to an embodiment of the present disclosure. As shown in fig. 7, in the process of manufacturing the thin film capacitor 400, the following steps may be included:

a first electrode is formed on a first surface of the first dielectric film (step 731). As described above, the first dielectric film is formed from the polypropylene composite according to the present disclosure described above. The first electrode may be a metal foil, or a layer of conductive material formed on the first surface of the first dielectric film by evaporation or the like. For example, the conductive material may be a metal material having high conductivity, such as aluminum, copper, silver, or gold.

An adjustment layer is formed on the second surface of the first dielectric film (step 732). The material of the adjustment layer may be, for example, a metal material such as zinc, tungsten, manganese, or an alloy material thereof such as a zinc-tungsten alloy, a zinc-manganese alloy, a tungsten-manganese alloy, or the like. For example, in some embodiments according to the present disclosure, a layer of a zinc-tungsten alloy may be formed on the second surface of the first dielectric film by evaporation, wherein a mass ratio of zinc to tungsten is 300:0.98 to 300: 1.02. For example, in one exemplary embodiment, the mass ratio of zinc and tungsten may be 300:1.

a conductive layer is formed on one surface (fourth surface) of the second dielectric film (step 733). The second dielectric film is also made of the polypropylene composite described above according to embodiments of the present disclosure. The conductive layer may be formed of a metal foil, for example, by coating the surface of the second dielectric film with a metal foil. Alternatively, a layer of metal material, such as aluminum, copper, silver, gold, or the like, may be formed on the surface of the second dielectric film by evaporation.

Third and fourth electrodes are formed such that the third and fourth electrodes are electrically connected with the conductive layer (step 734). In some embodiments according to the present disclosure, two wires may be electrically connected to the conductive layer as a third electrode and a fourth electrode, respectively. For example, in the case where the conductive layer is rectangular, two wires may be electrically connected to the vicinities of opposite corners of the rectangle, respectively. In addition, in order to avoid communication with other conductive parts in subsequent processing, the surfaces of the third electrode and the fourth electrode may be formed with a layer of insulating material. For example, the surfaces of the third electrode and the fourth electrode are coated with an insulating paint.

In some embodiments according to the present disclosure, the insulating coating may be replaced with an insulating sheath. Fig. 9 shows a schematic diagram of a thin film capacitor according to an embodiment of the present disclosure. As shown in fig. 9, in the winding process, a third electrode 951 and a fourth electrode 941 are formed. Specifically, the second dielectric film 947 has a conductive layer 946 on a surface (fourth surface). The third electrode 951 includes two portions connected to each other, i.e., a lead 954 and an end portion 953. The end portion 953 has a large area and can achieve good electrical connection with the conductive layer 946. A lead wire 954 extends from the end portion 953 to the outside of the film capacitor so as to be electrically connected to an external direct-current power supply. Similarly, the fourth electrode 941 includes two portions connected to each other, i.e., a lead 944 and an end portion 943. The end portion 943 has a large area and can be electrically connected to the conductive layer 946 well. A lead 944 extends from end 943 to the outside of the film capacitor to be electrically connected to an external dc power supply. In some embodiments according to the present disclosure, the leads and the ends of the third electrode 951 and the fourth electrode 941 may be integrally formed parts or may be formed by bonding two separate parts. For example, one end and the end of the lead may be joined together by microwave welding or the like.

As shown in fig. 9, when the winding is performed, a third electrode 951 and a fourth electrode 941 are arranged in the vicinity of two opposite corners of a rectangular conductive layer 946 in a diagonal direction. During the winding process, the end portions (953, 943) are in close contact with the conductive layer 946 by the tension of the film, and good electrical connection is achieved. When the positive and negative electrodes of a direct current power supply are applied to the third electrode 951 and the fourth electrode 941, respectively, a current flows from the third electrode 951 to the fourth electrode 941 via the conductive layer 946.

Further, in order to insulate the leads of the third electrode 951 and the fourth electrode 941 from the ac power supply, insulating

sheaths

952 and 942 are provided on the

leads

954 and 944, respectively. The insulating

sheaths

952 and 942 may be, for example, sleeves made of an insulating material through which the leads pass.

A second electrode (735) is formed on one surface (sixth surface) of the third dielectric film. The third dielectric film may be a metal foil as the second electrode, or a layer of conductive material formed on a surface of the third dielectric film by evaporation or the like. For example, the conductive material may be a metal material having high conductivity, such as aluminum, copper, silver, or gold.

A fourth dielectric film is provided (step 736). As described above, the third dielectric film and the fourth dielectric film may be polymer films such as films made of polypropylene, polyethylene terephthalate, polyethylene naphthalate, polyphenylene sulfide, polytetrafluoroethylene, polystyrene, polycarbonate, or the like.

The first dielectric film, the second dielectric film, the third dielectric film and the fourth dielectric film are laminated together (step 737). The adjusting layer on the first dielectric film is adjacent to the third surface of the second dielectric film, the conductive layer on the second dielectric film is adjacent to the fifth surface of the third dielectric film, and the second electrode on the third dielectric film is adjacent to one surface of the fourth dielectric film.

Next, a film capacitor can be manufactured by subsequent processes such as winding, metal spraying, and soldering of pins. And forming a first pin and a second pin of the film capacitor by spraying gold and welding the pins. The third electrode and the fourth electrode may serve as a third pin and a fourth pin, respectively, or may be electrically connected to the separate third pin and fourth pin, respectively, through subsequent processing. As described above, since the surfaces of the third electrode and the fourth electrode are coated with the insulating paint or provided with the insulating sheath, the third electrode and the fourth electrode can extend through the gold-sprayed material layer without being electrically connected thereto.

Fig. 8 illustrates a test chart of a thin film capacitor 400 according to some embodiments of the present disclosure. In this film capacitor 400, the first dielectric film and the second dielectric film are films of the polypropylene composite material prepared as described above according to example 3. The width of the first dielectric film is 7mm, the length of the first dielectric film is 75mm, the thickness of the first dielectric film is 40 mu m, a layer of aluminum with the thickness of 0.5mm is formed on the first surface of the first dielectric film through vacuum evaporation to serve as a first electrode, and a layer of zinc-tungsten alloy with the thickness of 0.8mm is formed on the second surface of the first dielectric film through vacuum evaporation to serve as a regulating layer. The second dielectric film has a width of 7mm, a length of 75mm and a thickness of 23 μm, and a layer of aluminum having a thickness of 0.5mm is formed as a conductive layer on the fourth surface of the second dielectric film by vacuum evaporation. The third dielectric film and the fourth dielectric film are both polypropylene films and are the same in size, 7mm in width, 75mm in length and 20 μm in thickness. And a layer of aluminum with the thickness of 0.5mm is formed on the sixth surface of the third dielectric film as a second electrode through vacuum evaporation.

The thin film capacitor 400 described above was tested by the circuit shown in fig. 6. The voltage of the alternating current power supply AC is 380V, and the frequency is 50 Hz. The voltage of the direct current power supply DC may vary between 0V and 24V.

As shown in fig. 8, as the voltage of the direct current power DC is gradually increased from 0V to 24V, the alternating current flowing through the film capacitor 400 is gradually decreased from about 65A to less than 10A. The capacitance value of the thin film capacitor 400 manufactured according to embodiments of the present disclosure described above may vary between approximately 1983.5 μ f-9.9 μ f. That is, by adjusting the dc voltage applied to the third electrode and the fourth electrode to 1V to 24V, the capacitance value of the film capacitor 400 can be continuously changed such that the reactive power varies between 200var and 1 kvar.

It should be understood that the specific structures and parameters of the film capacitor 400 given above are by way of example only. The dimensions, thicknesses, materials, etc. of the various dielectric films and other layers may be varied as desired under the teachings of the present disclosure.

In addition, according to some embodiments of the present disclosure, the following technical solutions may also be included:

1. a thin film capacitor, comprising:

a first electrode;

a second electrode; and

a dielectric between the first electrode and the second electrode,

wherein the dielectric includes:

a first dielectric film, the first electrode disposed on a first surface of the first dielectric film;

a tuning layer on the second surface of the first dielectric film;

a second dielectric film, a third surface of the second dielectric film adjacent to the adjustment layer; and

a conductive layer on a fourth surface of the second dielectric film,

the thin film capacitor further includes:

a third electrode and a fourth electrode electrically connected to the conductive layer,

the first dielectric film and the second dielectric film are made of a polypropylene composite material, the polypropylene composite material comprises a filler and a base material, the base material is 500-800 parts of polypropylene resin, and the filler comprises: 100-200 parts of ruthenium dioxide, 80-120 parts of calcium carbonate and 40-60 parts of carbon fiber.

2. The film capacitor of claim 1, wherein the filler further comprises: and (3) an additive.

3. The thin film capacitor of claim 2, wherein the additive comprises at least one of: corrosion inhibitors, sterically hindered phenols, adipic acid, calcium stearate, erucamide, 2, 5-dimethyl-2, 5-di (t-butylperoxy) -hexane, silica, sodium benzoate, sodium stearate, graphene and N-2 (2-hydroxyethyl).

4. The thin film capacitor of claim 3, wherein the corrosion inhibitor comprises sodium nitrite and sodium hydroxide.

5. The thin film capacitor of 4, wherein the amount of the corrosion inhibitor is 1.14-1.21 parts.

6. The thin film capacitor of claim 3, wherein the sterically hindered phenol comprises pentaerythrityl tetrakis [ beta- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionate ].

7. The film capacitor of claim 6, wherein the mass ratio of the erucamide to the sterically hindered phenol is 2: 1, and the amount of the sterically hindered phenol is 0.3-0.5 part.

8. The film capacitor of claim 6, wherein the mass ratio of the erucamide to the sterically hindered phenol is 1: 1, the amount of the ladybird lactam is 0.53-0.56 part.

9. The thin film capacitor of 3, wherein the amount of adipic acid is 1.32-1.38 parts.

10. The film capacitor of claim 3, wherein the amount of the calcium stearate is 1-1.07 parts.

11. The thin film capacitor of claim 3, wherein the amount of 2, 5-dimethyl-2, 5-di (t-butylperoxy) -hexane is 0.80-0.87 parts.

12. The thin film capacitor of 3, wherein the amount of the silica is 2.0-2.2 parts

13. The film capacitor of 3, wherein the amount of sodium benzoate is 1.24-1.44 parts.

14. The film capacitor of claim 3, wherein the amount of sodium stearate is 0.2-0.3 parts.

15. The thin film capacitor of 3, wherein the amount of graphene is 1.1-1.5 parts.

16. The thin film capacitor of claim 3, wherein the amount of N-N-2 (2-hydroxyethyl) is 0.78 to 0.91 parts.

17. The thin film capacitor of 1, wherein said calcium carbonate is nano calcium carbonate.

18. The thin film capacitor of any one of claims 1-17, wherein the material of the first dielectric film is the same as the material of the second dielectric film.

19. The thin film capacitor of any one of claims 1-17, wherein the material of the adjustment layer is a zinc-tungsten alloy, a zinc-manganese alloy, or a tungsten-manganese alloy.

20. The thin film capacitor of claim 19, wherein the mass ratio of zinc to tungsten in the zinc-tungsten alloy is from 300:0.98 to 300: 1.02.

21. The thin film capacitor of any one of claims 1-17, wherein the width of the tuning layer is less than the width of the first dielectric film.

22. The thin film capacitor of any one of claims 1-17, wherein the width of the conductive layer is less than the width of the second dielectric film and both sides of the second surface of the second dielectric film are exposed.

23. The thin film capacitor of any one of claims 1-17, wherein the conductive layer is made of a metal material.

24. The thin film capacitor of claim 23, wherein the metal material is one of aluminum, copper, silver, gold, and zinc.

25. The thin film capacitor of any one of claims 1-24, wherein the dielectric further comprises:

a third dielectric film disposed between the second electrode and the conductive layer.

26. The film capacitor of any one of claims 1-25, further comprising:

a fourth dielectric film arranged such that the second electrode is located between the third and fourth dielectric films.

27. A method of manufacturing a thin film capacitor according to any one of claims 1-26, comprising:

forming a first electrode on a first surface of a first dielectric film;

forming the adjustment layer on the second surface of the first dielectric film;

forming the conductive layer on a fourth surface of a second dielectric film;

forming a third electrode and a fourth electrode such that the third electrode and the fourth electrode are electrically connected to the conductive layer;

forming a second electrode on a sixth surface of the third dielectric film;

providing a fourth dielectric film;

and superposing the first dielectric film, the second dielectric film, the third dielectric film and the fourth dielectric film together, wherein the adjusting layer is adjacent to the third surface of the second dielectric film, the conductive layer is adjacent to the fifth surface of the third dielectric film, and the fourth dielectric film is adjacent to the second electrode.

28. A method of using a thin film capacitor according to any one of claims 1-26, comprising:

electrically connecting the first electrode and the second electrode into a circuit;

applying a direct current voltage between the third electrode and the fourth electrode; and

and adjusting the value of the direct current voltage so as to change the capacitance value of the film capacitor.

As used herein, the word "exemplary" means "serving as an example, instance, or illustration," and not as a "model" that is to be replicated accurately. Any implementation exemplarily described herein is not necessarily to be construed as preferred or advantageous over other implementations. Furthermore, the disclosure is not limited by any expressed or implied theory presented in the preceding technical field, background, brief summary or the detailed description.

In addition, "first," "second," and like terms may also be used herein for reference purposes only, and thus are not intended to be limiting. For example, the terms "first," "second," and other such numerical terms referring to structures or elements do not imply a sequence or order unless clearly indicated by the context.

Those skilled in the art will appreciate that the boundaries between the above described operations merely illustrative. Multiple operations may be combined into a single operation, single operations may be distributed in additional operations, and operations may be performed at least partially overlapping in time. Moreover, alternative embodiments may include multiple instances of a particular operation, and the order of operations may be altered in various other embodiments. However, other modifications, variations, and alternatives are also possible. The specification and drawings are, accordingly, to be regarded in an illustrative rather than a restrictive sense.

Although some specific embodiments of the present disclosure have been described in detail by way of example, it should be understood by those skilled in the art that the foregoing examples are for purposes of illustration only and are not intended to limit the scope of the present disclosure. The various embodiments disclosed herein may be combined in any combination without departing from the spirit and scope of the present disclosure. It will also be appreciated by those skilled in the art that various modifications may be made to the embodiments without departing from the scope and spirit of the disclosure. The scope of the present disclosure is defined by the appended claims.

Claims

1. A thin film capacitor, comprising:

a first electrode;

a second electrode; and

a dielectric between the first electrode and the second electrode,

wherein the dielectric includes:

a tuning layer on the second surface of the first dielectric film;

a conductive layer on a fourth surface of the second dielectric film,

the thin film capacitor further includes:

the first dielectric film and the second dielectric film are made of a polypropylene composite material, the polypropylene composite material comprises a filler and a base material, the base material is 500-800 parts of polypropylene resin, and the filler comprises: 100-200 parts of ruthenium dioxide, 80-120 parts of calcium carbonate and 40-60 parts of carbon fiber,

the dielectric further includes: a third dielectric film disposed between the second electrode and the conductive layer,

the film capacitor further includes: a fourth dielectric film arranged such that the second electrode is located between the third and fourth dielectric films.

2. The film capacitor of claim 1 wherein the filler further comprises: and (3) an additive.

5. The thin film capacitor of claim 4, wherein the amount of corrosion inhibitor is 1.14-1.21 parts.

7. The film capacitor of claim 6, wherein the ratio of the erucamide to the sterically hindered phenol by mass is 2: 1, and the amount of the stereo hindered phenol is 0.3-0.5 part.

8. The film capacitor of claim 6, wherein the ratio of the erucamide to the sterically hindered phenol by mass is 1: 1, the amount of the ladybird leimide is 0.53-0.56 part.

9. A film capacitor as claimed in claim 3, wherein the amount of adipic acid is 1.32-1.38 parts.

10. The film capacitor of claim 3 wherein the amount of calcium stearate is 1-1.07 parts.

11. The thin film capacitor of claim 3 wherein the amount of 2, 5-dimethyl-2, 5-di (t-butylperoxy) -hexane is 0.80-0.87 parts.

12. The thin film capacitor of claim 3, wherein the amount of silicon dioxide is 2.0-2.2 parts.

13. The film capacitor of claim 3 wherein said sodium benzoate is in an amount of 1.24 to 1.44 parts.

14. The film capacitor of claim 3 wherein the amount of sodium stearate is 0.2-0.3 parts.

15. The thin film capacitor of claim 3, wherein the amount of graphene is 1.1-1.5 parts.

16. The thin film capacitor of claim 3 wherein the amount of N-N-2 (2-hydroxyethyl) is 0.78-0.91 parts.

17. The thin film capacitor of claim 1 wherein the calcium carbonate is nano calcium carbonate.

18. A thin film capacitor as claimed in any one of claims 1 to 17, wherein the material of the first dielectric film is the same as the material of the second dielectric film.

19. The thin film capacitor of any one of claims 1-17, wherein the material of the tuning layer is a zinc-tungsten alloy, a zinc-manganese alloy, or a tungsten-manganese alloy.

21. The thin film capacitor of any one of claims 1-17, wherein a width of the tuning layer is less than a width of the first dielectric thin film.

23. A film capacitor as claimed in any one of claims 1 to 17, wherein the conductive layer is made of a metallic material.

24. The thin film capacitor of claim 23, wherein the metal material is one of aluminum, copper, silver, gold, zinc.

25. A method of manufacturing a thin film capacitor of any one of claims 1-24, comprising:

forming a first electrode on a first surface of a first dielectric film;

forming the conductive layer on a fourth surface of a second dielectric film;

forming a second electrode on a sixth surface of the third dielectric film;

providing a fourth dielectric film;

26. A method of using the thin film capacitor of any one of claims 1-24, comprising: