Foaming bi-component organic silicon pouring sealant and preparation method thereof

A silicone potting adhesive and two-component technology, applied in the field of silicone potting adhesive and its preparation, can solve the problems of poor foaming uniformity, difficulty in controlling foaming degree and speed, and achieve uniform foaming and flame retardancy. The effect of good performance and simple production process
CN109825084AInactive Publication Date: 2019-05-31西卡(江苏)工业材料有限公司
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
西卡(江苏)工业材料有限公司
Publication Date
2019-05-31
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a foaming bi-component organic silicon pouring sealant which comprises a component A and a component B with the weight ratio of (5.5-6.5):1. The component A comprises, by weight, 100 parts of alpha, omega-dihydroxy polydimethylsiloxane, 1-20 parts of polyhydroxy polysiloxane, 5-50 parts of foaming agents, 20-90 parts of fillers, 0-5 parts of inhibitors, 1-15 parts of fluoro-alcohol treated MQ silicon resin and 1-15 parts of foaming rate-accelerating additives. The component B comprises, by weight, 100 parts of curing agent carriers, 40-60 parts of silane crosslinking agents, 10-20 parts of silane coupling adhesion accelerators and 0.05-1 part of catalysts. The foaming rate-accelerating additives are one or two of diphenyl silanediol and octanol. The invention further discloses a preparation method of the foaming bi-component organic silicon pouring sealant. The bi-component organic silicon pouring sealant has the advantages of simple production technology, foaming uniformity, high foam strength, good flame resistance, excellent storage performance and the like.
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Description

technical field

[0001] The invention relates to a silicone potting glue and a preparation method thereof, in particular to a two-component silicone potting glue for foaming and a preparation method thereof. Background technique

[0002] It is difficult to control the foaming degree and speed of the existing low-density foamed silicone rubber, so the uniformity of foaming in the prepared low-density foamed silicone rubber is relatively poor. Contents of the invention

[0003] In view of the deficiencies of the above-mentioned prior art, the object of the present invention is to provide a two-component silicone potting compound for foaming, which can solve the problem of foaming uniformity of the two-component silicone potting compound. Another object of the present invention is to provide a method for preparing a two-component silicone potting compound for foaming.

[0004] The technical solution of the present invention is as follows: a two-component silicone potting comp...

Claims

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