CN106916509A - A kind of metal film resistor coating and preparation method thereof - Google Patents
A kind of metal film resistor coating and preparation method thereof Download PDFInfo
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- CN106916509A CN106916509A CN201710180918.2A CN201710180918A CN106916509A CN 106916509 A CN106916509 A CN 106916509A CN 201710180918 A CN201710180918 A CN 201710180918A CN 106916509 A CN106916509 A CN 106916509A
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D163/00—Coating compositions based on epoxy resins; Coating compositions based on derivatives of epoxy resins
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/63—Additives non-macromolecular organic
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2203/00—Applications
- C08L2203/20—Applications use in electrical or conductive gadgets
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Apparatuses And Processes For Manufacturing Resistors (AREA)
Abstract
The invention discloses a kind of metal film resistor coating, it is characterised in that the raw material including following weight portion：80 120 parts of epoxy resin, 20 60 parts of thermosetting acrylic resin, 5 15 parts of nano silicon, 10 20 parts of calcium carbonate, 40 100 parts of absolute ethyl alcohol, 15 parts of adhesion promoter, 10 20 parts of anhydride curing agent, 5 15 parts of butyl glycol ether.Metal film resistor of the invention coating good film-forming property, good adhesion strength, high temperature resistant, resistance to wet performance high are good, institute's film formation surface is smooth, fine and close pore-free, its cost of the preparation method of metal film resistor coating of the invention is relatively low, raw material is easy to get and technique simplicity, has a good application prospect.
Description
Technical field
The present invention relates to power electronics field of material technology, and in particular to a kind of metal film resistor coating and its preparation
Method.
Background technology
Metal film resistor is widely used in sophisticated electronics as a kind of precision resistor, wherein film resistor
Be deposited with for certain resistivity materials and be made in insulating materials surface by the method that device is evaporated with class.Thin film resistor and thick-film resistor
Device mainly has following two differences, as follows：1st, the difference of thickness, the thickness of thick-film resistor is generally higher than 10 μm, the thickness of film
Less than 10 μm, mostly in less than 1 μm；2nd, the difference of manufacturing process, thick-film resistor typically uses silk-screen printing technique, film
Resistance uses the processes such as vacuum evaporation, magnetron sputtering.Thick-film resistor and film resistor are in material and technologic area
Difference of two kinds of resistance in performance is not directly results in.Thick-film resistor general precision is poor, and 10%, 5%, 1% is common precision,
And film resistor can then accomplish 0.01% precision, 0.1% precision etc..Control is difficult on the temperature coefficient of thick-film resistor simultaneously,
Generally large, likewise, film resistor can then accomplish low-down temperature coefficient, such resistance is varied with temperature very
Small, resistance is reliable and stable.So film resistor is usually used in all kinds of instrument and meters, medicine equipment, power supply, power equipment, electron number
Code product etc..
Metalfilmresistor is resistance widely used so far, and its high precision, stable performance, simple structure is light
Ingeniously.The fields such as the military aerospace under electron trade and high-precision requirement play considerable effect.This resistance and carbon film
Resistance is compared, and small volume, noise are low, good stability, but relatively costly, wide often as the resistor of accurate and high stability
General application, while being also common in various radio-electronic equipments.But the metal film resistor to being chronically at hygrothermal environment comes
Say, its stability has close relationship with the functional paint diaphragm on its conducting film.The coating of current domestic production is moistureproof
The need for property and heat resistance are not met by special dimension.The heat dispersion of existing encapsulated layer constrains precision metal film resistor
Power do greatly, the use requirement of the high power precision metal film resistor required by special user is can not meet, while existing
The paint film of encapsulated layer is crisp, and poor impact resistance is easy to crack, and service life is shorter.
The content of the invention
For the defect of prior art, it is an object of the invention to provide a kind of metal film resistor coating, the metal film
Resistor coating good film-forming property, good adhesion strength, high temperature resistant, resistance to wet performance high are good, and institute's film formation surface is smooth, fine and close pore-free,
Its cost of the preparation method of metal film resistor coating of the invention is relatively low, raw material is easy to get and technique simplicity, with good
Application prospect.
The present invention solves technical problem and adopts the following technical scheme that：
The invention provides a kind of metal film resistor coating, including following weight portion raw material：
Epoxy resin 80-120 parts, thermosetting acrylic resin 20-60 parts, nano silicon 5-15 parts, calcium carbonate 10-20
Part, absolute ethyl alcohol 40-100 parts, nano aluminium oxide 5-10 parts, adhesion promoter 1-5 parts, anhydride curing agent 10-20 parts, second two
5-15 parts of alcohol butyl ether.
Preferably, the metal film resistor includes the raw material of following weight portion with coating：
100 parts of epoxy resin, 40 parts of thermosetting acrylic resin, 10 parts of nano silicon, 15 parts of calcium carbonate, absolute ethyl alcohol 70
Part, 8 parts of nano aluminium oxide, 3 parts of adhesion promoter, 15 parts of anhydride curing agent, 10 parts of butyl glycol ether.
Preferably, the adhesion promoter is the one kind or several in chloro resin, sulfonamido, silane and titanate esters
Kind.
Preferably, the anhydride curing agent is：Dimethyl succinic anhydride, 2- methyl-props acid anhydrides, 2- methylene-succinic acids
One or more in acid anhydride, 2,2- dimethyl-pentens acid anhydrides or ptfe phthalic anhydride.
Present invention also offers a kind of preparation method of metal film resistor coating, comprise the following steps：
Step one, epoxy resin, calcium carbonate, nano aluminium oxide, butyl glycol ether is mixed and is put into mixer, stirs 30-70
Minute, speed of agitator is 800-1200r/min, obtains mixture A；
Step 2, second is dispersed at 15-25 DEG C with sonic oscillation method in ethanol solution by nano silicon
In alcoholic solution, ultrasonic frequency is 35-45KHz, obtains nano particle suspension B；
Step 3, by nano particle suspension B, thermoset acrylics tree obtained in mixture A, step 2 obtained in step one
Fat, adhesion promoter, anhydride curing agent mixing are stirred 50-80 minutes in adding mixer, speed of agitator 500-600r/min,
Obtain final product metal film resistor coating of the invention.
Preferably, in the step one mixing time be 50 minutes, speed of agitator be 1000r/min.
Preferably, temperature is 20 DEG C in the step 2, and ultrasonic frequency is 40KHz.
Preferably, mixing time is 65 minutes, 55r/min in the step 3.
Compared with prior art, the present invention has following beneficial effect：
（1）Metal film resistor coating of the invention is using epoxy resin and thermosetting acrylic resin as the matrix material of coating
Material, because the humidity resistance of thermosetting acrylic resin and the copolymer of epoxy resin formation is preferable so that worth coating tool
There is stronger wet-hot aging performance, range of application is wider.
（2）Metal film resistor coating of the invention introduces nano silicon, increased thermoset acrylics tree
The compactness of the copolymer networks structure that fat and epoxy resin are formed so that the smooth fine and close, high temperature resistant of coating surface of invention and
Resistance to high humidity function admirable.
（3）Metal film resistor coating of the invention with the addition of nano aluminium oxide, and nano aluminium oxide has high-termal conductivity
Can so that the heat-sinking capability of coating obtains huge raising so that can be big using the power of the metal film resistor of this coating
It is big to improve.
（4）Metal film resistor coating of the invention applies nanometer particle material, because nano-particle has nanometer
Dimensional effect, huge surface area and stronger interface interaction, after being merged by a certain percentage with epoxy resin, enhances dope layer
Bending strength, impact resistance and heat endurance, so as to improve the use of the resistor product gone out using coating material production of the present invention
Life-span.
（5）Its cost of the preparation method of metal film resistor coating of the invention is relatively low, raw material is easy to get and technique letter
It is bright, have a good application prospect.
Specific embodiment
With reference to specific embodiment, the technical scheme in the embodiment of the present invention is clearly and completely described, shown
So, described embodiment is only a part of embodiment of the invention, rather than whole embodiments.Based on the reality in the present invention
Example is applied, the every other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not made all belongs to
In the scope of protection of the invention.
Embodiment 1.
The metal film resistor coating of the present embodiment, including following weight portion raw material：
80 parts of epoxy resin, 20 parts of thermosetting acrylic resin, 5 parts of nano silicon, 10 parts of calcium carbonate, absolute ethyl alcohol 40
Part, 5 parts of nano aluminium oxide, 1 part of adhesion promoter, 10 parts of anhydride curing agent, 5 parts of butyl glycol ether.
Adhesion promoter is chloro resin in the present embodiment.
Anhydride curing agent is 2,2- dimethyl-penten acid anhydrides in the present embodiment.
The preparation method of the metal film resistor coating of the present embodiment, comprises the following steps：
Step one, epoxy resin, calcium carbonate, nano aluminium oxide, butyl glycol ether is mixed and is put into mixer, stirs 30 points
Clock, speed of agitator is 800r/min, obtains mixture A；
Step 2, it is molten at 15 DEG C in ethanol solution with sonic oscillation method nano silicon to be dispersed in into ethanol
In liquid, ultrasonic frequency is 35KHz, obtains nano particle suspension B；
Step 3, by nano particle suspension B, thermoset acrylics tree obtained in mixture A, step 2 obtained in step one
Fat, adhesion promoter, anhydride curing agent mixing are stirred 50 minutes in adding mixer, and speed of agitator 500r/min obtains final product this
The metal film resistor coating of invention.
Embodiment 2.
The metal film resistor coating of the present embodiment, including following weight portion raw material：
120 parts of epoxy resin, 60 parts of thermosetting acrylic resin, 15 parts of nano silicon, 20 parts of calcium carbonate, absolute ethyl alcohol
100 parts, 10 parts of nano aluminium oxide, 5 parts of adhesion promoter, 20 parts of anhydride curing agent, 15 parts of butyl glycol ether.
Adhesion promoter is titanate esters in the present embodiment.
Anhydride curing agent is 2- itaconic anhydrides in the present embodiment.
The preparation method of the metal film resistor coating of the present embodiment, comprises the following steps：
Step one, epoxy resin, calcium carbonate, nano aluminium oxide, butyl glycol ether is mixed and is put into mixer, stirs 70 points
Clock, speed of agitator is 1200r/min, obtains mixture A；
Step 2, it is molten at 25 DEG C in ethanol solution with sonic oscillation method nano silicon to be dispersed in into ethanol
In liquid, ultrasonic frequency is 45KHz, obtains nano particle suspension B；
Step 3, by nano particle suspension B, thermoset acrylics tree obtained in mixture A, step 2 obtained in step one
Fat, adhesion promoter, anhydride curing agent mixing are stirred 80 minutes in adding mixer, and speed of agitator 600r/min obtains final product this
The metal film resistor coating of invention.
Embodiment 3.
The metal film resistor coating of the present embodiment, including following weight portion raw material：
100 parts of epoxy resin, 40 parts of thermosetting acrylic resin, 10 parts of nano silicon, 15 parts of calcium carbonate, absolute ethyl alcohol 70
Part, 8 parts of nano aluminium oxide, 3 parts of adhesion promoter, 15 parts of anhydride curing agent, 10 parts of butyl glycol ether.
Adhesion promoter is silane in the present embodiment.
Anhydride curing agent is dimethyl succinic anhydride in the present embodiment.
The preparation method of the metal film resistor coating of the present embodiment, comprises the following steps：
Step one, epoxy resin, calcium carbonate, nano aluminium oxide, butyl glycol ether is mixed and is put into mixer, stirs 50 clocks,
Speed of agitator is 1000r/min, obtains mixture A；
Step 2, it is molten at 20 DEG C in ethanol solution with sonic oscillation method nano silicon to be dispersed in into ethanol
In liquid, ultrasonic frequency is 40KHz, obtains nano particle suspension B；
Step 3, by nano particle suspension B, thermoset acrylics tree obtained in mixture A, step 2 obtained in step one
Fat, adhesion promoter, anhydride curing agent mixing are stirred 65 minutes in adding mixer, and speed of agitator 550r/min obtains final product this
The metal film resistor coating of invention.
Coating and reference example coating resin coating 1W resistance and the 2W resistance conducts of embodiments of the invention are used respectively
Encapsulated layer, performs according to GJB1929-1994 product standards, compares and apply at 80 DEG C precision of the rated load after 1000 hours
Change, examines power level, and the performance test results are as follows：
| Coating classification | Power | Surface temperature | Precision changes |
| Embodiment 1 | 1W | 86℃ | ±0.21% |
| Embodiment 1 | 2W | 110℃ | ±0.37% |
| Embodiment 2 | 1W | 79℃ | ±0.31% |
| Embodiment 2 | 2W | 106℃ | ±0.48% |
| Embodiment 3 | 1W | 83℃ | ±0.26% |
| Embodiment 3 | 2W | 108℃ | ±0.40% |
| Reference example | 1W | 105℃ | ±0.45% |
| Reference example | 2W | 148℃ | ±0.89% |
Metal film resistor coating of the invention using epoxy resin and thermosetting acrylic resin as the matrix material of coating,
The humidity resistance of the copolymer formed due to thermosetting acrylic resin and epoxy resin is preferable so that worth coating have compared with
Strong wet-hot aging performance, range of application is wider；Nano silicon is introduced, thermosetting acrylic resin and asphalt mixtures modified by epoxy resin is increased
The compactness of the copolymer networks structure that fat is formed so that the smooth fine and close, high temperature resistant of coating surface and Nai Gao wet performances of invention
It is excellent；With the addition of nano aluminium oxide, nano aluminium oxide with high thermal conductivity so that the heat-sinking capability of coating obtains huge
Improve so that can be greatly improved using the power of the metal film resistor of this coating；Nanometer particle material is applied, due to receiving
Rice corpuscles has nanometer size effect, and huge surface area and stronger interface interaction are merged by a certain percentage with epoxy resin
Afterwards, bending strength, impact resistance and the heat endurance of dope layer are enhanced, so as to improve the service life of product.It is of the invention
Its cost of the preparation method of metal film resistor coating is relatively low, raw material is easy to get and technique simplicity, preceding with good application
Scape.
It is obvious to a person skilled in the art that the invention is not restricted to the details of above-mentioned one exemplary embodiment, Er Qie
In the case of without departing substantially from spirit or essential attributes of the invention, the present invention can be in other specific forms realized.Therefore, no matter
From the point of view of which point, embodiment all should be regarded as exemplary, and be nonrestrictive, the scope of the present invention is by appended power
Profit requires to be limited rather than described above, it is intended that all in the implication and scope of the equivalency of claim by falling
Change is included in the present invention.
Moreover, it will be appreciated that although the present specification is described in terms of embodiments, not each implementation method is only wrapped
Containing an independent technical scheme, this narrating mode of specification is only that for clarity, those skilled in the art should
Specification an as entirety, the technical scheme in each embodiment can also be formed into those skilled in the art through appropriately combined
May be appreciated other embodiment.
Claims (8)
1. a kind of metal film resistor coating, it is characterised in that the raw material including following weight portion：
Epoxy resin 80-120 parts, thermosetting acrylic resin 20-60 parts, nano silicon 5-15 parts, calcium carbonate 10-20
Part, absolute ethyl alcohol 40-100 parts, nano aluminium oxide 5-10 parts, adhesion promoter 1-5 parts, anhydride curing agent 10-20 parts, second two
5-15 parts of alcohol butyl ether.
2. metal film resistor coating according to claim 1, it is characterised in that the metal film resistor coating
Raw material including following weight portion：
100 parts of epoxy resin, 40 parts of thermosetting acrylic resin, 10 parts of nano silicon, 15 parts of calcium carbonate, absolute ethyl alcohol 70
Part, 8 parts of nano aluminium oxide, 3 parts of adhesion promoter, 15 parts of anhydride curing agent, 10 parts of butyl glycol ether.
3. metal film resistor coating according to claim 1 and 2, it is characterised in that the adhesion promoter is
One or more in chloro resin, sulfonamido, silane and titanate esters.
4. metal film resistor coating according to claim 1 and 2, it is characterised in that the anhydride curing agent is：Two
Methyl succinic acid anhydrides, 2- methyl-props acid anhydrides, 2- itaconic anhydrides, 2,2- dimethyl-pentens acid anhydrides or tetrafluoro O-phthalic
One or more in acid anhydrides.
5. the preparation method of metal film resistor coating according to claim 1 and 2, it is characterised in that including following
Step：
Step one, epoxy resin, calcium carbonate, nano aluminium oxide, butyl glycol ether is mixed and is put into mixer, stirs 30-70
Minute, speed of agitator is 800-1200r/min, obtains mixture A；
Step 2, second is dispersed at 15-25 DEG C with sonic oscillation method in ethanol solution by nano silicon
In alcoholic solution, ultrasonic frequency is 35-45KHz, obtains nano particle suspension B；
Step 3, by nano particle suspension B, thermoset acrylics tree obtained in mixture A, step 2 obtained in step one
Fat, adhesion promoter, anhydride curing agent mixing are stirred 50-80 minutes in adding mixer, speed of agitator 500-600r/min,
Obtain final product metal film resistor coating of the invention.
6. the preparation method of metal film resistor coating according to claim 5, it is characterised in that in the step one
Mixing time is 50 minutes, speed of agitator is 1000r/min.
7. the preparation method of metal film resistor coating according to claim 5, it is characterised in that in the step 2
Temperature is 20 DEG C, and ultrasonic frequency is 40KHz.
8. the preparation method of metal film resistor coating according to claim 5, it is characterised in that in the step 3
Mixing time is 65 minutes, 550r/min.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710180918.2A CN106916509A (en) | 2017-03-24 | 2017-03-24 | A kind of metal film resistor coating and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710180918.2A CN106916509A (en) | 2017-03-24 | 2017-03-24 | A kind of metal film resistor coating and preparation method thereof |
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| CN106916509A true CN106916509A (en) | 2017-07-04 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112500766A (en) * | 2020-10-16 | 2021-03-16 | 中国电力科学研究院有限公司 | High-performance coating for metal film resistor and preparation method thereof |
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| CN101570662A (en) * | 2009-03-26 | 2009-11-04 | 天津大学 | High-temperature and high-moisture resistant coating for metalster and preparation method thereof |
| CN101724330A (en) * | 2009-12-02 | 2010-06-09 | 天津大学 | Heat and humidity resistant acrylic acid/phenolic resin/nano-SiO2 coating for metal film resistor and preparation method thereof |
| CN104164160A (en) * | 2014-07-31 | 2014-11-26 | 宿迁嵘锦信息科技有限公司 | Coating for metal film resistors |
| CN104559661A (en) * | 2014-12-29 | 2015-04-29 | 贝迪斯电子有限公司 | Coating used for metal film resistor encapsulating layer and preparation method thereof |
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2017
- 2017-03-24 CN CN201710180918.2A patent/CN106916509A/en not_active Withdrawn
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|---|---|---|---|---|
| CN101570662A (en) * | 2009-03-26 | 2009-11-04 | 天津大学 | High-temperature and high-moisture resistant coating for metalster and preparation method thereof |
| CN101724330A (en) * | 2009-12-02 | 2010-06-09 | 天津大学 | Heat and humidity resistant acrylic acid/phenolic resin/nano-SiO2 coating for metal film resistor and preparation method thereof |
| CN104164160A (en) * | 2014-07-31 | 2014-11-26 | 宿迁嵘锦信息科技有限公司 | Coating for metal film resistors |
| CN104559661A (en) * | 2014-12-29 | 2015-04-29 | 贝迪斯电子有限公司 | Coating used for metal film resistor encapsulating layer and preparation method thereof |
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| 王国建: "《多组分聚合物—原理、结构与性能》", 31 October 2013, 同济大学出版社 * |
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| CN112500766A (en) * | 2020-10-16 | 2021-03-16 | 中国电力科学研究院有限公司 | High-performance coating for metal film resistor and preparation method thereof |
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