CN110746700A - Antibacterial reinforced color master batch for polypropylene and preparation method thereof - Google Patents
Antibacterial reinforced color master batch for polypropylene and preparation method thereof Download PDFInfo
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- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/20—Compounding polymers with additives, e.g. colouring
- C08J3/22—Compounding polymers with additives, e.g. colouring using masterbatch techniques
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- C08J2451/06—Characterised by the use of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Derivatives of such polymers grafted on to homopolymers or copolymers of aliphatic hydrocarbons containing only one carbon-to-carbon double bond
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- C08K7/06—Elements
Abstract
The invention discloses an antibacterial enhanced color master batch for polypropylene and a preparation method thereof, wherein the antibacterial enhanced color master batch for polypropylene is prepared from the following raw materials in parts by weight: 45-50 parts of polypropylene, 7-9 parts of maleic anhydride grafted polypropylene, 6-8 parts of beeswax, 11-14 parts of calcium suberate, 9-12 parts of nano calcium carbonate, 5-8 parts of carbon fiber, 12-15 parts of high-strength polyester fiber, 6-8 parts of nano silver, 3-5 parts of nano titanium dioxide and 4-6 parts of dispersing agent. The antibacterial color-enhancing master batch for polypropylene is applied to polypropylene, and the prepared polypropylene product has good antibacterial effect; the prepared polypropylene product has higher tensile strength and impact strength and good mechanical property; has wide market application prospect.
Description
Technical Field
The invention relates to the field of high polymer materials, and particularly relates to an antibacterial reinforced color master batch for polypropylene and a preparation method thereof.
Background
Polypropylene (PP) is a semicrystalline polymer, has excellent mechanical properties, heat resistance, chemical resistance and formability, and has been widely used in the industries of automobiles, household electrical appliances, buildings and the like.
PP has a very strong electrical insulation property (surface resistivity as high as 10) due to its low molecular polarity and poor water absorption16～1018Omega) which can generate and accumulate static electricity on the surface of the product due to friction, peeling or induction processes during production and use, thereby generating static electricity hazards such as dust absorption, discharge, breakdown, even combustion or explosion. Particularly in winter in the north, because of dry weather and more dust, a large amount of dust can be adsorbed on the surface of the automobile part during the placement period after the injection molding is finished. Firstly, the dust dry cloth is almost not wiped off, and only wet cloth can be used for wiping, so that a large amount of manpower and material resources are consumed; secondly, the wiped workpiece can quickly adsorb dust again, and the adsorption speed is very high; thirdly, the static electricity causes the materials in the packaging bag to be unable to be poured out completely and to be adsorbed on the inner wall of the packaging bag. Therefore, the PP material for antistatic vehicles has become one of the important directions in the field of plastic modification.
The coloring method for producing polypropylene products mainly comprises three methods of coloring by using colored powder, coloring by using dyed pull-batch and coloring by using color master batch. When the color master batch is used for coloring, the pigment is pretreated and uniformly dispersed in the carrier resin, so that the dispersibility and the coloring efficiency of the pigment are greatly improved, and the method has the advantages of simplicity in operation, low cost, less pollution and the like.
The color master batch mainly comprises three parts of a coloring agent, a carrier and a dispersing agent, is a polymer compound prepared by uniformly carrying an excessive pigment on a resin, and the selected resin has good wetting and dispersing effects on the coloring agent and good compatibility with a colored material.
However, the polypropylene master batches used at present have the following problems:
1. when the antibacterial agent is applied to polypropylene, the prepared polypropylene product has poor antibacterial effect; the requirement of the polypropylene product on antibacterial performance cannot be met;
2. the addition of various additives is applied to polypropylene, so that the tensile strength and the impact strength of the prepared polypropylene product are greatly reduced.
Disclosure of Invention
Based on the situation, the invention aims to provide an antibacterial reinforced color master batch for polypropylene and a preparation method thereof, which can effectively solve the problems.
In order to solve the technical problems, the technical scheme provided by the invention is as follows:
an antibacterial reinforced color master batch for polypropylene is prepared from the following raw materials in parts by weight:
45-50 parts of polypropylene,
7-9 parts of maleic anhydride grafted polypropylene,
6-8 parts of beeswax,
11-14 parts of calcium octanedioate,
9-12 parts of nano calcium carbonate,
5-8 parts of carbon fiber,
12-15 parts of high-strength polyester fiber,
6-8 parts of nano silver,
3-5 parts of nano titanium dioxide,
4-6 parts of a dispersing agent.
Preferably, the antibacterial color-enhancing master batch for polypropylene is prepared from the following raw materials in parts by weight:
47.5 parts of polypropylene,
8 parts of maleic anhydride grafted polypropylene,
7 parts of beeswax,
12.5 parts of calcium octanedioate,
10.5 parts of nano calcium carbonate,
7.5 parts of carbon fiber,
13.5 parts of high-strength polyester fiber,
7 parts of nano silver,
4 portions of nano titanium dioxide,
5 parts of a dispersing agent.
Preferably, the monofilament diameter of the carbon fiber is 0.8-1.2 um, and the length is 15-30 mm.
Preferably, the high-strength polyester fiber has the strength of 6-7.6 g/denier and the elongation of 8.5-11.5%.
Preferably, the dispersing agent is a mixture of polyether modified silicone oil and a silane coupling agent.
Preferably, the mass ratio of the polyether modified silicone oil to the silane coupling agent in the mixture of the polyether modified silicone oil and the silane coupling agent is 1: (0.35-0.47).
Preferably, the antibacterial reinforcing color master batch for polypropylene further comprises the following raw materials in parts by weight:
3.5-5 parts of an antioxidant; preferably, the antioxidant is antioxidant 1076 or antioxidant 1010.
Preferably, the antibacterial reinforcing color master batch for polypropylene further comprises the following raw materials in parts by weight: 1-5 parts of a pigment; preferably, the colorant is an organic colorant or an inorganic colorant.
Preferably, the organic colorant is at least one of macromolecular yellow, phthalocyanine red and phthalocyanine green; preferably, the inorganic pigment is at least one of iron oxide red, titanium dioxide and iron oxide yellow.
The invention also provides a preparation method of the antibacterial reinforced color master batch for polypropylene, which comprises the following steps:
A. respectively weighing polypropylene, maleic anhydride grafted polypropylene, beeswax, calcium octanedioate, nano calcium carbonate, carbon fiber, high-strength polyester fiber, nano silver, nano titanium dioxide and a dispersing agent according to the parts by weight for later use;
B. feeding polypropylene, maleic anhydride grafted polypropylene, beeswax, calcium octanedioate, nano calcium carbonate, carbon fibers, high-strength polyester fibers, nano silver, nano titanium dioxide and a dispersing agent into a high-speed mixer, stirring at a rotating speed of 1500-2000 r/min at a mixing temperature of 90-95 ℃, and mixing for 10-15 min;
C. and then feeding the mixture into a double-screw extruder for melt blending, adding an antioxidant, controlling the melting temperature to be 175-215 ℃ and the screw rotating speed to be 200-250 r/min, and performing extrusion granulation and drying to obtain the antibacterial reinforcing color master batch for polypropylene.
Compared with the prior art, the invention has the following advantages and beneficial effects:
the antibacterial enhanced color master batch for polypropylene is prepared by selecting raw materials, optimizing the content of each raw material, and selecting polypropylene, maleic anhydride grafted polypropylene, beeswax, calcium suberate, nano calcium carbonate, carbon fiber, high-strength polyester fiber, nano silver, nano titanium dioxide and a dispersing agent in a proper ratio, so that the respective advantages are fully exerted, the advantages are mutually supplemented and mutually promoted, the prepared antibacterial enhanced color master batch for polypropylene is applied to polypropylene, and the prepared polypropylene product has a good antibacterial effect; the prepared polypropylene product has higher tensile strength and impact strength and good mechanical property; has wide market application prospect.
The raw materials of the antibacterial reinforced color master batch for polypropylene are added with maleic anhydride grafted polypropylene in a proper proportion, the raw materials play a good role of a compatilizer in a raw material system of the antibacterial reinforced color master batch for polypropylene, and the compatilizer is matched with other components to play a good synergistic role, so that a polypropylene product prepared from the antibacterial reinforced color master batch for polypropylene has a good antibacterial effect; the prepared polypropylene product has higher tensile strength and impact strength and good mechanical property.
The beeswax is added into the raw materials of the antibacterial reinforced color master batch for polypropylene in a proper proportion, so that the antibacterial reinforced color master batch for polypropylene has good lubricating and dispersing effects in the raw material system, can be suitable for pigments, fillers and the like with various polarities, ensures good lubricating and dispersing effects, is matched with other components to play a good synergistic effect, and ensures that a polypropylene product prepared from the antibacterial reinforced color master batch for polypropylene has a good antibacterial effect; the prepared polypropylene product has higher tensile strength and impact strength and good mechanical property.
The raw materials of the antibacterial reinforcing color master batch for polypropylene are added with calcium octanedioate and nano calcium carbonate in a proper proportion, so that the antibacterial reinforcing color master batch for polypropylene has a good reinforcing effect in the raw material system, and the calcium octanedioate and the nano calcium carbonate are matched with each other to play a good synergistic effect and have a good reinforcing effect, so that a polypropylene product prepared from the antibacterial reinforcing color master batch for polypropylene has good tensile strength, impact strength and mechanical properties.
The raw materials of the antibacterial reinforcing color master batch for polypropylene are added with the carbon fiber and the high-strength polyester fiber in proper proportion, so that the antibacterial reinforcing color master batch for polypropylene has a good reinforcing effect in the raw material system, and the carbon fiber and the high-strength polyester fiber are matched with each other to play a good synergistic effect and have a good reinforcing effect, so that a polypropylene product prepared from the antibacterial reinforcing color master batch for polypropylene has good tensile strength, impact strength and mechanical property.
The raw materials of the antibacterial reinforced color master batch for polypropylene are added with the nano silver and the nano titanium dioxide in proper proportion, so that the antibacterial reinforced color master batch for polypropylene has a good antibacterial effect in the raw material system, and the nano silver and the nano titanium dioxide are matched with each other to play a good synergistic effect, so that the antibacterial reinforced color master batch for polypropylene has a good antibacterial effect, and a polypropylene product prepared from the antibacterial reinforced color master batch for polypropylene has a good antibacterial effect.
The preparation method has simple process and simple and convenient operation, and saves manpower and equipment cost.
Detailed Description
In order that those skilled in the art will better understand the technical solutions of the present invention, the following description of the preferred embodiments of the present invention is provided in connection with specific examples, which should not be construed as limiting the present patent.
The test methods or test methods described in the following examples are conventional methods unless otherwise specified; the reagents and materials, unless otherwise indicated, are conventionally obtained commercially or prepared by conventional methods.
Example 1:
an antibacterial reinforced color master batch for polypropylene is prepared from the following raw materials in parts by weight:
45-50 parts of polypropylene,
7-9 parts of maleic anhydride grafted polypropylene,
6-8 parts of beeswax,
11-14 parts of calcium octanedioate,
9-12 parts of nano calcium carbonate,
5-8 parts of carbon fiber,
12-15 parts of high-strength polyester fiber,
6-8 parts of nano silver,
3-5 parts of nano titanium dioxide,
4-6 parts of a dispersing agent.
In this embodiment, the antibacterial color-enhancing master batch for polypropylene is prepared from the following raw materials in parts by weight:
47.5 parts of polypropylene,
8 parts of maleic anhydride grafted polypropylene,
7 parts of beeswax,
12.5 parts of calcium octanedioate,
10.5 parts of nano calcium carbonate,
7.5 parts of carbon fiber,
13.5 parts of high-strength polyester fiber,
7 parts of nano silver,
4 portions of nano titanium dioxide,
5 parts of a dispersing agent.
In this embodiment, the monofilament diameter of the carbon fiber is 0.8-1.2 um, and the length is 15-30 mm.
In the embodiment, the strength of the high-strength polyester fiber is 6 to 7.6 g/denier, and the elongation is 8.5 to 11.5%.
In this embodiment, the dispersant is a mixture of polyether-modified silicone oil and a silane coupling agent.
In this embodiment, the mass ratio of the polyether modified silicone oil to the silane coupling agent in the mixture of the two polyether modified silicone oils and the silane coupling agent is 1: (0.35-0.47).
In this embodiment, the antibacterial reinforcing color master batch for polypropylene further comprises the following raw materials in parts by weight:
3.5-5 parts of an antioxidant; in this embodiment, the antioxidant is antioxidant 1076 or antioxidant 1010.
In this embodiment, the antibacterial reinforcing color master batch for polypropylene further comprises the following raw materials in parts by weight: 1-5 parts of a pigment; in this embodiment, the coloring material is an organic coloring material or an inorganic coloring material.
In this embodiment, the organic colorant is at least one of a macromolecular yellow, a phthalocyanine red and a phthalocyanine green; in this embodiment, the inorganic pigment is at least one of iron oxide red, titanium dioxide, and iron oxide yellow.
The embodiment also provides a preparation method of the antibacterial reinforced color master batch for polypropylene, which comprises the following steps:
A. respectively weighing polypropylene, maleic anhydride grafted polypropylene, beeswax, calcium octanedioate, nano calcium carbonate, carbon fiber, high-strength polyester fiber, nano silver, nano titanium dioxide and a dispersing agent according to the parts by weight for later use;
B. feeding polypropylene, maleic anhydride grafted polypropylene, beeswax, calcium octanedioate, nano calcium carbonate, carbon fibers, high-strength polyester fibers, nano silver, nano titanium dioxide and a dispersing agent into a high-speed mixer, stirring at a rotating speed of 1500-2000 r/min at a mixing temperature of 90-95 ℃, and mixing for 10-15 min;
C. and then feeding the mixture into a double-screw extruder for melt blending, adding an antioxidant, controlling the melting temperature to be 175-215 ℃ and the screw rotating speed to be 200-250 r/min, and performing extrusion granulation and drying to obtain the antibacterial reinforcing color master batch for polypropylene.
Example 2:
an antibacterial reinforced color master batch for polypropylene is prepared from the following raw materials in parts by weight:
45 parts of polypropylene,
7 parts of maleic anhydride grafted polypropylene,
6 parts of beeswax,
11 parts of calcium octanedioate,
9 portions of nano calcium carbonate,
5 parts of carbon fiber,
12 portions of high-strength polyester fiber,
6 portions of nano silver,
3 portions of nano titanium dioxide,
4 parts of a dispersing agent.
In this embodiment, the monofilament diameter of the carbon fiber is 0.8-1 um, and the length is 15-22 mm.
In this example, the high strength polyester fiber had a strength of 6 g/denier and an elongation of 11.5%.
In this embodiment, the dispersant is a mixture of polyether-modified silicone oil and a silane coupling agent.
In this embodiment, the mass ratio of the polyether modified silicone oil to the silane coupling agent in the mixture of the two polyether modified silicone oils and the silane coupling agent is 1: 0.35.
in this embodiment, the antibacterial reinforcing color master batch for polypropylene further comprises the following raw materials in parts by weight:
3.5 parts of an antioxidant; in this example, the antioxidant is antioxidant 1076.
In this embodiment, the antibacterial reinforcing color master batch for polypropylene further comprises the following raw materials in parts by weight: 1 part of pigment; in this example, the colorant is an organic colorant.
In this example, the organic colorant is present in a mass ratio of 1: 0.6 of a macromolecular yellow and a phthalocyanine red.
In this embodiment, the preparation method of the antibacterial reinforcing color master batch for polypropylene includes the following steps:
A. respectively weighing polypropylene, maleic anhydride grafted polypropylene, beeswax, calcium octanedioate, nano calcium carbonate, carbon fiber, high-strength polyester fiber, nano silver, nano titanium dioxide and a dispersing agent according to the parts by weight for later use;
B. feeding polypropylene, maleic anhydride grafted polypropylene, beeswax, calcium octanedioate, nano calcium carbonate, carbon fiber, high-strength polyester fiber, nano silver, nano titanium dioxide and a dispersing agent into a high-speed mixer, stirring at a rotation speed of 1500r/min and a mixing temperature of 90 ℃, and mixing for 15 min;
C. and then feeding the mixture into a double-screw extruder for melt blending, adding an antioxidant, controlling the melting temperature to be 175-215 ℃, controlling the screw rotation speed to be 200r/min (divided into 6 temperature sections, and increasing the temperature of each temperature section), and performing extrusion granulation and drying to obtain the antibacterial reinforcing color master batch for polypropylene.
Example 3:
an antibacterial reinforced color master batch for polypropylene is prepared from the following raw materials in parts by weight:
50 portions of polypropylene,
9 parts of maleic anhydride grafted polypropylene,
8 parts of beeswax,
14 parts of calcium octanedioate,
12 portions of nano calcium carbonate,
8 parts of carbon fiber,
15 portions of high-strength polyester fiber,
8 portions of nano silver,
5 portions of nano titanium dioxide,
6 parts of a dispersing agent.
In this embodiment, the monofilament diameter of the carbon fiber is 1 ~ 1.2um, and the length is 22 ~ 30 mm.
In this example, the high strength polyester fiber had a strength of 7.6 g/denier and an elongation of 8.5%.
In this embodiment, the dispersant is a mixture of polyether-modified silicone oil and a silane coupling agent.
In this embodiment, the mass ratio of the polyether modified silicone oil to the silane coupling agent in the mixture of the two polyether modified silicone oils and the silane coupling agent is 1: 0.47.
in this embodiment, the antibacterial reinforcing color master batch for polypropylene further comprises the following raw materials in parts by weight:
5 parts of an antioxidant; in this example, the antioxidant is antioxidant 1010.
In this embodiment, the antibacterial reinforcing color master batch for polypropylene further comprises the following raw materials in parts by weight: 5 parts of a pigment; in this example, the coloring material is an inorganic coloring material.
In this embodiment, the inorganic coloring material is iron oxide red.
In this embodiment, the preparation method of the antibacterial reinforcing color master batch for polypropylene includes the following steps:
A. respectively weighing polypropylene, maleic anhydride grafted polypropylene, beeswax, calcium octanedioate, nano calcium carbonate, carbon fiber, high-strength polyester fiber, nano silver, nano titanium dioxide and a dispersing agent according to the parts by weight for later use;
B. feeding polypropylene, maleic anhydride grafted polypropylene, beeswax, calcium octanedioate, nano calcium carbonate, carbon fiber, high-strength polyester fiber, nano silver, nano titanium dioxide and a dispersing agent into a high-speed mixer, stirring at a rotation speed of 2000r/min and a mixing temperature of 95 ℃, and mixing for 10 min;
C. and then feeding the mixture into a double-screw extruder for melt blending, adding an antioxidant, controlling the melting temperature to be 175-215 ℃, controlling the screw rotation speed to be 250r/min (divided into 6 temperature sections, and increasing the temperature of each temperature section), and performing extrusion granulation and drying to obtain the antibacterial reinforcing color master batch for polypropylene.
Example 4:
an antibacterial reinforced color master batch for polypropylene is prepared from the following raw materials in parts by weight:
47.5 parts of polypropylene,
8 parts of maleic anhydride grafted polypropylene,
7 parts of beeswax,
12.5 parts of calcium octanedioate,
10.5 parts of nano calcium carbonate,
7.5 parts of carbon fiber,
13.5 parts of high-strength polyester fiber,
7 parts of nano silver,
4 portions of nano titanium dioxide,
5 parts of a dispersing agent.
In this embodiment, the monofilament diameter of the carbon fiber is 0.9-1.1 um, and the length is 20-25 mm.
In this example, the high strength polyester fiber had a strength of 6.8 g/denier and an elongation of 10.4%.
In this embodiment, the dispersant is a mixture of polyether-modified silicone oil and a silane coupling agent.
In this embodiment, the mass ratio of the polyether modified silicone oil to the silane coupling agent in the mixture of the two polyether modified silicone oils and the silane coupling agent is 1: 0.42.
in this embodiment, the antibacterial reinforcing color master batch for polypropylene further comprises the following raw materials in parts by weight:
4.6 parts of an antioxidant; in this example, the antioxidant is antioxidant 1010.
In this embodiment, the antibacterial reinforcing color master batch for polypropylene further comprises the following raw materials in parts by weight: 4 parts of a pigment; in this example, the colorant is an organic colorant.
In this example, the organic colorant is present in a mass ratio of 1: phthalocyanine red and phthalocyanine green of 0.5.
In this embodiment, the preparation method of the antibacterial reinforcing color master batch for polypropylene includes the following steps:
A. respectively weighing polypropylene, maleic anhydride grafted polypropylene, beeswax, calcium octanedioate, nano calcium carbonate, carbon fiber, high-strength polyester fiber, nano silver, nano titanium dioxide and a dispersing agent according to the parts by weight for later use;
B. feeding polypropylene, maleic anhydride grafted polypropylene, beeswax, calcium octanedioate, nano calcium carbonate, carbon fibers, high-strength polyester fibers, nano silver, nano titanium dioxide and a dispersing agent into a high-speed mixer, stirring at 1750r/min at the mixing temperature of 92 ℃, and mixing for 13 min;
C. and then feeding the mixture into a double-screw extruder for melt blending, adding an antioxidant, controlling the melting temperature to be 175-215 ℃, controlling the rotating speed of the screws to be 230r/min (divided into 6 temperature sections, and increasing the temperature of each temperature section), and performing extrusion granulation and drying to obtain the antibacterial reinforcing color master batch for polypropylene.
Comparative example 1:
the difference from example 4 is that no maleic anhydride grafted polypropylene is present, and the rest is the same as example 4.
Comparative example 2:
the difference from example 4 is that no beeswax is present, and the other is the same as example 4.
Comparative example 3:
the difference from example 4 is that calcium octanedioate is absent, and the other is the same as example 4.
Comparative example 4:
the difference from example 4 is that no nano calcium carbonate is present, and the rest is the same as example 4.
Comparative example 5:
the difference from example 4 is that no carbon fiber is present, and the other is the same as example 4.
Comparative example 6:
the difference from example 4 is that no high-strength polyester fiber is present, and the other is the same as example 4.
Comparative example 7:
the difference from example 4 is that there is no nanosilver, and the rest is the same as example 4.
Comparative example 8:
the difference from example 4 is that no nano titanium dioxide is present, and the other is the same as example 4.
The antibacterial reinforcing color master batches for polypropylene obtained in examples 2 to 4 of the present invention, the color master batches obtained in comparative examples 1 to 8, and the pure polypropylene were subjected to performance tests, and the test results are shown in table 1.
Specifically, 3% of the antibacterial reinforcing color master batch for polypropylene obtained in examples 2 to 4 and the color master batch obtained in comparative examples 1 to 8 are added into a polypropylene base material to be extruded into a sheet, and then the sheet is cut into a plurality of standard sample strips to be subjected to performance tests such as antibacterial performance, tensile strength and impact strength.
TABLE 1
As can be seen from the above table, the antibacterial reinforced color master batch for polypropylene has the following advantages: the prepared polypropylene product has good antibacterial effect when being applied to polypropylene; the prepared polypropylene product has higher tensile strength and impact strength and good mechanical property; has wide market application prospect.
From the analysis of the above table, it can be seen that the addition of the maleic anhydride grafted polypropylene in a proper proportion plays a good role of a compatibilizer in the raw material system of the invention, and the maleic anhydride grafted polypropylene is matched with other components to play a good synergistic role, so that the polypropylene product prepared by the antibacterial reinforcing color master batch for polypropylene has a good antibacterial effect; the prepared polypropylene product has higher tensile strength and impact strength and good mechanical property.
From the analysis of the above table, the beeswax added in a proper proportion plays a good role in lubrication and dispersion in the raw material system of the invention, can be suitable for pigments, fillers and the like with various polarities, ensures good lubrication and dispersion, and plays a good synergistic effect by being matched with other components, so that a polypropylene product prepared by the antibacterial reinforced color master batch for polypropylene has a good antibacterial effect; the prepared polypropylene product has higher tensile strength and impact strength and good mechanical property.
From the analysis of the above table, it can be seen that the addition of calcium octanedioate and nano calcium carbonate in a proper proportion has a good reinforcing effect in the raw material system of the present invention, and the two are mutually matched to have a good synergistic effect and a good reinforcing effect, so that the polypropylene product prepared by using the antibacterial reinforcing color master batch for polypropylene of the present invention has good tensile strength, impact strength and mechanical properties.
From the analysis of the above table, it can be seen that the addition of the carbon fiber and the high-strength polyester fiber in a proper proportion has a good reinforcing effect in the raw material system of the present invention, and the two are mutually matched to have a good synergistic effect and a good reinforcing effect, so that the polypropylene product prepared by using the antibacterial reinforcing color master batch for polypropylene has good tensile strength, impact strength and mechanical properties.
From the analysis of the above table, it can be seen that the addition of nano silver and nano titanium dioxide in a proper proportion has a good antibacterial effect in the raw material system of the present invention, and the two are mutually matched to have a good synergistic effect and a good antibacterial effect, so that the polypropylene product prepared by using the antibacterial reinforcing color master batch for polypropylene of the present invention has a good antibacterial effect.
The above is only a preferred embodiment of the present invention, and it should be noted that the above preferred embodiment should not be considered as limiting the present invention, and the protection scope of the present invention should be subject to the scope defined by the claims. It will be apparent to those skilled in the art that various modifications and adaptations can be made without departing from the spirit and scope of the invention, and these modifications and adaptations should be considered within the scope of the invention.
Claims (10)
1. The antibacterial reinforced color master batch for polypropylene is characterized by being prepared from the following raw materials in parts by weight:
45-50 parts of polypropylene,
7-9 parts of maleic anhydride grafted polypropylene,
6-8 parts of beeswax,
11-14 parts of calcium octanedioate,
9-12 parts of nano calcium carbonate,
5-8 parts of carbon fiber,
12-15 parts of high-strength polyester fiber,
6-8 parts of nano silver,
3-5 parts of nano titanium dioxide,
4-6 parts of a dispersing agent.
2. The antibacterial color-enhancing masterbatch for polypropylene as claimed in claim 1, wherein the antibacterial color-enhancing masterbatch for polypropylene is prepared from the following raw materials in parts by weight:
47.5 parts of polypropylene,
8 parts of maleic anhydride grafted polypropylene,
7 parts of beeswax,
12.5 parts of calcium octanedioate,
10.5 parts of nano calcium carbonate,
7.5 parts of carbon fiber,
13.5 parts of high-strength polyester fiber,
7 parts of nano silver,
4 portions of nano titanium dioxide,
5 parts of a dispersing agent.
3. The antibacterial reinforcing color master batch for polypropylene according to claim 1, wherein the monofilament diameter of the carbon fiber is 0.8-1.2 um, and the length is 15-30 mm.
4. The antibacterial reinforcing color master batch for polypropylene according to claim 1, wherein the strength of the high-strength polyester fiber is 6-7.6 g/denier, and the elongation is 8.5-11.5%.
5. The antimicrobial reinforcing color masterbatch for polypropylene according to claim 1, wherein the dispersant is a mixture of polyether modified silicone oil and silane coupling agent.
6. The antibacterial reinforcing color master batch for polypropylene according to claim 5, wherein the mass ratio of the polyether modified silicone oil to the silane coupling agent in the mixture of the polyether modified silicone oil and the silane coupling agent is 1: (0.35-0.47).
7. The antibacterial reinforcing color masterbatch for polypropylene as claimed in claim 1, wherein the antibacterial reinforcing color masterbatch for polypropylene further comprises the following raw materials in parts by weight:
3.5-5 parts of an antioxidant; the antioxidant is antioxidant 1076 or antioxidant 1010.
8. The antibacterial reinforcing color masterbatch for polypropylene as claimed in claim 1, wherein the antibacterial reinforcing color masterbatch for polypropylene further comprises the following raw materials in parts by weight:
1-5 parts of a pigment; the pigment is an organic pigment or an inorganic pigment.
9. The antimicrobial reinforcing color masterbatch for polypropylene according to claim 8, wherein the organic colorant is at least one of macromolecular yellow, phthalocyanine red and phthalocyanine green; the inorganic pigment is at least one of iron oxide red, titanium dioxide and iron oxide yellow.
10. A process for the preparation of an antimicrobial reinforcing masterbatch for polypropylene according to any one of claims 1 to 9, comprising the following steps:
A. respectively weighing polypropylene, maleic anhydride grafted polypropylene, beeswax, calcium octanedioate, nano calcium carbonate, carbon fiber, high-strength polyester fiber, nano silver, nano titanium dioxide and a dispersing agent according to the parts by weight for later use;
B. feeding polypropylene, maleic anhydride grafted polypropylene, beeswax, calcium octanedioate, nano calcium carbonate, carbon fibers, high-strength polyester fibers, nano silver, nano titanium dioxide and a dispersing agent into a high-speed mixer, stirring at a rotating speed of 1500-2000 r/min at a mixing temperature of 90-95 ℃, and mixing for 10-15 min;
and then feeding the mixture into a double-screw extruder for melt blending, adding an antioxidant, controlling the melting temperature to be 175-215 ℃ and the screw rotating speed to be 200-250 r/min, and performing extrusion granulation and drying to obtain the antibacterial reinforcing color master batch for polypropylene.
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