CN102417767B - Organic-inorganic laminating coating for aluminum capacitor shell and preparation method thereof - Google Patents
Organic-inorganic laminating coating for aluminum capacitor shell and preparation method thereof Download PDFInfo
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- CN102417767B CN102417767B CN2011103297247A CN201110329724A CN102417767B CN 102417767 B CN102417767 B CN 102417767B CN 2011103297247 A CN2011103297247 A CN 2011103297247A CN 201110329724 A CN201110329724 A CN 201110329724A CN 102417767 B CN102417767 B CN 102417767B
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Abstract
The invention discloses an organic-inorganic laminating coating for an aluminum capacitor shell and a preparation method thereof. The organic-inorganic laminating coating is mainly obtained by mixing and stirring a composition A and a composition B in composition raw materials in part by weight, wherein the composition A consists of polyvinyl chloride resin, polyamide resin, ketone, sodium carbonate, nanometer carbon powder, ethyl acetate and attapulgite; and the composition B consists of an acrylic ester copolymer modifier, organosiloxane, sodium silicate and straw ash. The organic-inorganic laminating coating has a reasonable formula, a simple preparation method and a good curing effect on the aluminum capacitor shell; a capacitor is protected effectively; and the obtained laminating coating has heat resistance performance and wear resistance performance, and contributes to prolonging the service life of the capacitor.
Description
Technical field
The present invention relates to capacitor case and chemical composition, be specifically related to a kind of organic-inorganic laminating coating for aluminum capacitor shell and preparation method thereof.
Background technology
Progress along with the electron trade technology, the manufacturing technology of electronic circuit board also has greatly improved, for volume and the reduction of dwindling electronic product consumes, electrolytic condenser is as one of universal component on electronic circuit board, not only to it heatproof, it is anti-that to puncture requirement be more and more higher, and to require its footprints be also the smaller the better.The electrolytic condenser footprints is little, is at first that aluminium shell of capacitor will have high length-to-diameter ratio, and electrical condenser diameter reduced dimension area is just little; Next is that capacitor case will have high air heat resistance, otherwise in asking, easily damages and reduction of service life in the sky of compactness, traditional aluminium shell of capacitor is that subpunch is made shape, and one deck insulating material is sealed up in rear pyrocondensation, and insulating material tightly is rolled on capacitor case after heating.This its shortcoming of red shortness's plastic film electrical condenser is that the anti-air themperature of insulating material of heat-sealing is not high enough, also can produce a lot of plastic film waste materials in the process of heat-seal process.The coating method that the disclosed a kind of insulation film on aluminum body of electrolytic capacitor of TaiWan, China Yabo Company is also arranged, Chinese invention patent application publication number CNl944704, the method is mainly to take the high potential gradient of 1000～20000 volts, make gaseous ion clash into teflon tetrafluoroethylene (polytetrafluoroethylene), clash into fluorine atom, simultaneous oxidation generates fluorine oxide, fluorine oxide namely can produce powerful tackiness under high temperature action, and is deposited on glutinous covering on the aluminum enclosure surface and forms the insulated hull rete of fluorine oxide.This method is in fact only the chloride secondary pollution of covering material that has reduced, but exists the problem that temperature tolerance is poor, production cost is higher.
Summary of the invention
In order to alleviate shortcomings and deficiencies of the prior art; the object of the present invention is to provide a kind of organic-inorganic laminating coating for aluminum capacitor shell and preparation method thereof; the present invention fills a prescription rationally; the preparation method is simple; solidification effect is good on aluminium shell of capacitor; effectively carry out protective condenser, the coating paint that makes has the heat-resistant antifriction performance, has increased the work-ing life of electrical condenser.
The present invention adopts following technical scheme to achieve these goals:
Organic-inorganic laminating coating for aluminum capacitor shell, the weight part that it is characterized in that its constitutive material is: comprise composition A and composition B, described composition A: polyvinyl chloride (PVC) RESINS 40-50 part, polyamide resin 40-50 part, ketone 20-30 part, sodium carbonate 15-25 part, nano-carbon powder 15-25 part, ethyl acetate 20-30 part and attapulgite 10-15 part; Described composition B: acrylic acid esters co-polymer properties-correcting agent 20-30 part, organo-siloxane 5-10 part, water glass 5-10 part and stalk ashes 5-10 part.
The preparation method of described organic-inorganic laminating coating for aluminum capacitor shell is characterized in that comprising the following steps:
(1) weight part by constitutive material takes each raw material, polyvinyl chloride (PVC) RESINS, polyamide resin, ketone, sodium carbonate, nano-carbon powder, ethyl acetate and attapulgite are added in stirrer, stirred 30-45 minute under normal temperature, mix and obtain composition A, again acrylic acid esters co-polymer properties-correcting agent, organo-siloxane, water glass and stalk ashes are added in stirrer, stirred 30-45 minute under normal temperature, mix and obtain composition B;
(2) composition A and composition B are added in stirrer, mix, in stirrer, solution stirring is to clear solution.
Beneficial effect of the present invention:
The present invention fills a prescription rationally, and the preparation method is simple, and solidification effect is good on aluminium shell of capacitor, effectively carries out protective condenser, and the coating paint that makes has the heat-resistant antifriction performance, increased the work-ing life of electrical condenser.
Embodiment
Embodiment 1:Organic-inorganic laminating coating for aluminum capacitor shell, the weight part of its constitutive material is: comprise composition A and composition B, described composition A: 10 parts of 40 parts of polyvinyl chloride (PVC) RESINS, 40 parts of polyamide resins, 20 parts of ketones, 15 parts, sodium carbonate, 15 parts of nano-carbon powders, 20 parts of ethyl acetate and attapulgites; Described composition B: 5 parts, 20 parts of acrylic acid esters co-polymer properties-correcting agent, 5 parts of organo-siloxanes, 5 parts of water glass and stalk ashes.
The preparation method of organic-inorganic laminating coating for aluminum capacitor shell comprises the following steps:
(1) weight part by constitutive material takes each raw material, polyvinyl chloride (PVC) RESINS, polyamide resin, ketone, sodium carbonate, nano-carbon powder, ethyl acetate and attapulgite are added in stirrer, stirred 30-45 minute under normal temperature, mix and obtain composition A, again acrylic acid esters co-polymer properties-correcting agent, organo-siloxane, water glass and stalk ashes are added in stirrer, stirred 30-45 minute under normal temperature, mix and obtain composition B;
(2) composition A and composition B are added in stirrer, mix, in stirrer, solution stirring is to clear solution.
During the coating aluminum hull, aluminum hull need to clean with the hot water that adds NaOH, NaOH concentration is 4-6%, place after cleaning 160-180 ℃ dry oxidation 1-2 minute, then the above-mentioned organic-inorganic laminating coating for aluminum capacitor shell that makes evenly is being applied under the environment of room temperature on pretreated surface of aluminum plate, then aluminium sheet is placed under the environment of 210-220 ℃ and solidified, solidified at least 1 minute.
Embodiment 2:Organic-inorganic laminating coating for aluminum capacitor shell, the weight part of its constitutive material is: comprise composition A and composition B, described composition A: 15 parts of 50 parts of polyvinyl chloride (PVC) RESINS, 50 parts of polyamide resins, 30 parts of ketones, 25 parts, sodium carbonate, 25 parts of nano-carbon powders, 30 parts of ethyl acetate and attapulgites; Described composition B: 10 parts, 30 parts of acrylic acid esters co-polymer properties-correcting agent, 10 parts of organo-siloxanes, 10 parts of water glass and stalk ashes.
The preparation method of organic-inorganic laminating coating for aluminum capacitor shell comprises the following steps:
(1) weight part by constitutive material takes each raw material, polyvinyl chloride (PVC) RESINS, polyamide resin, ketone, sodium carbonate, nano-carbon powder, ethyl acetate and attapulgite are added in stirrer, stirred 30-45 minute under normal temperature, mix and obtain composition A, again acrylic acid esters co-polymer properties-correcting agent, organo-siloxane, water glass and stalk ashes are added in stirrer, stirred 30-45 minute under normal temperature, mix and obtain composition B;
(2) composition A and composition B are added in stirrer, mix, in stirrer, solution stirring is to clear solution.
During the coating aluminum hull, aluminum hull need to clean with the hot water that adds NaOH, NaOH concentration is 4-6%, place after cleaning 160-180 ℃ dry oxidation 1-2 minute, then the above-mentioned organic-inorganic laminating coating for aluminum capacitor shell that makes evenly is being applied under the environment of room temperature on pretreated surface of aluminum plate, then aluminium sheet is placed under the environment of 210-220 ℃ and solidified, solidified at least 1 minute.
Embodiment 3:Scribble the organic-inorganic laminating coating for aluminum capacitor shell of embodiment 1 and embodiment 2, the electrical condenser overlay film aluminum hull technical indicator that solidification value wherein, time and gained overlay film aluminum hull are made is:
| ? | Embodiment 1 | Embodiment 2 |
| Solidification value (℃) | 203 | 212 |
| Set time (s) | 60 | 60 |
| Require index | Meet | Meet |
| Length-to-diameter ratio | 2.8:1 | 3.3:1 |
Claims (2)
1. organic-inorganic laminating coating for aluminum capacitor shell, the weight part that it is characterized in that its constitutive material is: composition A and composition B, described composition A: polyvinyl chloride (PVC) RESINS 40-50 part, polyamide resin 40-50 part, ketone 20-30 part, sodium carbonate 15-25 part, nano-carbon powder 15-25 part, ethyl acetate 20-30 part and attapulgite 10-15 part; Described composition B: acrylic acid esters co-polymer properties-correcting agent 20-30 part, organo-siloxane 5-10 part, water glass 5-10 part and stalk ashes 5-10 part.
2. the preparation method of an organic-inorganic laminating coating for aluminum capacitor shell as claimed in claim 1 is characterized in that comprising the following steps:
(1) weight part by constitutive material takes each raw material, polyvinyl chloride (PVC) RESINS, polyamide resin, ketone, sodium carbonate, nano-carbon powder, ethyl acetate and attapulgite are added in stirrer, stirred 30-45 minute under normal temperature, mix and obtain composition A, again acrylic acid esters co-polymer properties-correcting agent, organo-siloxane, water glass and stalk ashes are added in stirrer, stirred 30-45 minute under normal temperature, mix and obtain composition B;
(2) composition A and composition B are added in stirrer, mix, in stirrer, solution stirring is to clear solution.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103297247A CN102417767B (en) | 2011-10-27 | 2011-10-27 | Organic-inorganic laminating coating for aluminum capacitor shell and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103297247A CN102417767B (en) | 2011-10-27 | 2011-10-27 | Organic-inorganic laminating coating for aluminum capacitor shell and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102417767A CN102417767A (en) | 2012-04-18 |
| CN102417767B true CN102417767B (en) | 2013-05-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011103297247A Expired - Fee Related CN102417767B (en) | 2011-10-27 | 2011-10-27 | Organic-inorganic laminating coating for aluminum capacitor shell and preparation method thereof |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106497360A (en) * | 2016-10-26 | 2017-03-15 | 安徽飞达电气科技有限公司 | A kind of organic-inorganic aluminium shell of capacitor high-quality coating paint |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5039731A (en) * | 1986-10-20 | 1991-08-13 | Lord Corporation | Metal coating compositions including linear polyester polyurethane |
| CN1986711A (en) * | 2006-12-12 | 2007-06-27 | 溧阳市溧竹环境工程有限公司 | Acid-proof wear-proof anticorrosive paint and its preparing method |
| CN101550315A (en) * | 2009-05-15 | 2009-10-07 | 泰州市四联化工有限公司 | Black organic-silicon heat-resisting paint and preparation method thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006052295A (en) * | 2004-08-11 | 2006-02-23 | Kansai Paint Co Ltd | Method for producing aqueous resin dispersion |
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- 2011-10-27 CN CN2011103297247A patent/CN102417767B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5039731A (en) * | 1986-10-20 | 1991-08-13 | Lord Corporation | Metal coating compositions including linear polyester polyurethane |
| CN1986711A (en) * | 2006-12-12 | 2007-06-27 | 溧阳市溧竹环境工程有限公司 | Acid-proof wear-proof anticorrosive paint and its preparing method |
| CN101550315A (en) * | 2009-05-15 | 2009-10-07 | 泰州市四联化工有限公司 | Black organic-silicon heat-resisting paint and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| JP特开2006-52295A 2006.02.23 |
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| CN102417767A (en) | 2012-04-18 |
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