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Two-component pouring sealant and preparation method thereof
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A potting glue, two-component technology, applied in adhesives, non-polymer adhesive additives, adhesive additives, etc., can solve problems such as low adhesion and no adhesion
Inactive Publication Date: 2017-11-07
GOLOHO TECH CHANGZHOU CO LTD
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[0005] The technical problem to be solved in the present invention is: to overcome the technical problems of low adhesion and no adhesion of the two-component silicone potting glue in the prior art, and to provide a two-component potting glue and its preparation method
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Embodiment 1
[0035] Component A: The amine value of amino silicone oil is 0.9; the weight ratio of amino silicone oil, dimethyl silicone oil, silicon micropowder, aluminum oxide, boron nitride, and accelerator is: 100:10:20:100:5:1.
[0036] Component B: epoxy-based silicone oil with an epoxy equivalent of 1.85-2.0; epoxy-based silicone oil, dimethyl silicone oil. The weight ratio of silicon micropowder, alumina and boron nitride is: 100:15:15:100:5.
[0037] The mass ratio of component A and component B mixed is 1:1.
[0038] The preparation method of two-component silicone potting glue, the preparation steps include: (1) preparation of component A: high-speed dispersion and mixing of amino silicone oil, silicon micropowder, aluminum oxide and boron nitride; Add accelerator and accelerator to the material after high-speed dispersion mixing and continue to mix and defoam to obtain component A; (2) Preparation of component B: disperse and mix amino silicone oil, silicon micropowder, alumin...
Embodiment 2
[0040] Component A: The amine value of amino silicone oil is 2.0; the weight ratio of amino silicone oil, dimethyl silicone oil, silicon micropowder, aluminum oxide, boron nitride, and accelerator is: 100:20:30:100:5:2
[0041] Component B: epoxy-based silicone oil with an epoxy equivalent of 1.85-2.0; epoxy-based silicone oil, dimethyl silicone oil. The weight ratio of silicon micropowder, alumina and boron nitride is: 100:30:20:100:5
[0042] The mass ratio of component A and component B mixed is 2:1
Embodiment 3
[0044] Component A: The amine value of amino silicone oil is 35; the weight ratio of amino silicone oil, dimethyl silicone oil, silicon micropowder, alumina, boron nitride, and accelerator is: 100:20:30:100:5:2
[0045] Component B: epoxy-based silicone oil with an epoxy equivalent of 16.5-18; epoxy-based silicone oil, dimethyl silicone oil. The weight ratio of silicon micropowder, alumina and boron nitride is: 100:30:20:100:5
[0046] The mass ratio of component A and component B mixed is 4:1
[0047] For the product that embodiment 1-3 makes, we have carried out measurement and obtain following result:
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Abstract
The present invention relates to a two-component pouring sealant and a preparation method thereof, wherein the raw materials comprise, by weight, a component A and a component B, wherein the component A comprises, by weight, 100 parts of amino silicone oil, 10-50 parts of dimethyl silicone oil, 10-50 parts of silicon micro-powder, 10-200 parts of alumina, 5-10 parts of boronnitride, and 0.2-6 parts of an accelerator, and the component B comprises, by weight, 100 parts of epoxysilicone oil, 10-50 parts of dimethyl silicone oil, 10-50 parts of silicon micro-powder, 10-200 parts of alumina, and 5-10 parts of boronnitride. The preparation method comprises: (1) preparing the component A: carrying out high-speed dispersed mixing on amino silicone oil, silicon micro-powder, alumina and boronnitride, adding dimethyl silicone oil and an accelerator added to the obtained mixture, continuously mixing, and carrying out deaeration to obtain the component A; and (2) preparaing the component B: carrying out high-speed dispersed mixing on amino silicone oil, silicon micro-powder, alumina and boron nitride, adding dimethyl silicone oil to the obtained mixture, continuously mixing, and carrying out deaeration to obtain the component B.
Description
technical field [0001] The invention relates to a two-component glue, which belongs to a two-component potting glue and a preparation method thereof. Background technique [0002] Due to its excellent electrical insulation properties, high temperature resistance and weather resistance, good chemical stability, and simple processing technology, silicone potting adhesives are widely used in electronic potting and other fields, and play a role in moisture-proof, corrosion-proof, shock-proof, and anti-corrosion. The role of dust can not only improve the performance of electronic products, but also stabilize the parameters of electronic components, but ordinary silicone potting adhesives have disadvantages such as low adhesion to the substrate and no adhesion, which seriously affects the its scope of application. Epoxy resin potting compound has strong affinity with various polar materials such as metal, glass, cement, wood, plastic, etc., especially materials with high surface ...
Claims
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Application Information
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