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Environment-friendly organosilicon ''three-prevention'' coating and preparation method thereof

A silicone and environment-friendly technology, applied in the coating and other directions, can solve the problems of slow curing speed, non-environmental protection and poor adhesion of silicone elastomer three-proof coatings, achieve small volume shrinkage, improve production efficiency, reduce The effect of viscosity

Active Publication Date: 2019-12-31
广州玖盈化工材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In summary, the purpose of the present invention is to solve the problems of slow curing speed, poor adhesion and non-environmental protection of the existing silicone elastomer three-proof coating, and to provide an environmentally friendly silicone three-proof coating

Method used

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  • Environment-friendly organosilicon ''three-prevention'' coating and preparation method thereof
  • Environment-friendly organosilicon ''three-prevention'' coating and preparation method thereof
  • Environment-friendly organosilicon ''three-prevention'' coating and preparation method thereof

Examples

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Comparison scheme
Effect test

Embodiment 1

[0069] 100 parts by weight of (A1), 3 parts by weight of (B1), 8.5 parts by weight of (C), 8 parts by weight of (D1), 2 parts by weight of (E1), 0.2 parts by weight of (F), 1 Parts by weight of (I1) were sequentially added to the power mixer according to the formula ratio, and the planetary dispersion speed was adjusted to 25Hz, the high-speed dispersion speed was 35Hz, stirred for 3 hours, and then 0.2 parts by weight of (G) and 0.2 parts by weight were added according to the formula ratio (H), continue stirring for 30 minutes, then vacuum defoaming for 15 minutes, filter and pack to obtain an environment-friendly silicone three-proof coating product.

Embodiment 2

[0071] 80 parts by weight of (A2), 4 parts by weight of (B2), 8 parts by weight of (C), 6 parts by weight of (D2), 4 parts by weight of (E1), 0.2 parts by weight of (F), 1.5 parts by weight Parts by weight of (I1) were sequentially added to the power mixer according to the formula ratio, and the planetary dispersion speed was adjusted to 25Hz, the high-speed dispersion speed was 35Hz, stirred for 3 hours, and then 0.2 parts by weight of (G) and 0.2 parts by weight were added according to the formula ratio (H), continue stirring for 30 minutes, then vacuum defoaming for 15 minutes, filter and pack to obtain an environment-friendly silicone three-proof coating product.

Embodiment 3

[0073] 90 parts by weight of (A1), 3.5 parts by weight of (B2), 9 parts by weight of (C), 10 parts by weight of (D2), 2 parts by weight of (E1), 0.2 parts by weight of (F), 1.5 parts by weight Parts by weight of (I2) were sequentially added to the power mixer according to the formula ratio, and the planetary dispersion speed was adjusted to 25Hz, the high-speed dispersion speed was 35Hz, stirred for 3 hours, and then 0.2 parts by weight of (G) and 0.2 parts by weight were added according to the formula ratio (H), continue stirring for 30 minutes, then vacuum defoaming for 15 minutes, filter and pack to obtain an environment-friendly silicone three-proof coating product.

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Abstract

The invention discloses an environment-friendly organosilicon ''three-prevention'' coating and a preparation method thereof. The environment-friendly organosilicon ''three-prevention'' coating comprises the following components: (A) 80-100 parts by weight of vinyl silicone oil, (B) 0.1-10 parts by weight of a crosslinking agent, (C) 1-10 parts by weight of a reactive diluent, (D) 1-10 parts by weight of MQ silicone resin, (E) 1-10 parts by weight of hydrophobically modified white carbon black, (F) 0.1-0.5 part by weight of a reaction inhibitor, (G) 0.1-0.5 part by weight of a silicon hydrogenaddition reaction catalyst, (H) 0.1-0.5 part by weight of a photopolymerization initiator, and (I) 0.1-2 parts by weight of a tackifier. The environment-friendly organosilicon ''three-prevention'' coating provided by the invention effectively solves the problems that an existing organosilicon elastomer ''three-prevention'' coating is slow in curing speed and poor in adhesion and is not environmentally friendly.

Description

technical field [0001] The invention relates to the field of coatings, in particular to an environment-friendly silicone three-proof coating and a preparation method thereof. Background technique [0002] Printed circuit board (PCB board) is the main carrier to realize the interconnection between various electronic components. With the development of electronic industry, electronic instruments and equipment tend to be ultra-thin, light, short and small. Therefore, , It is becoming more and more important to insulate and protect the surface of the PCB board, and the requirements for the protective materials used for PCB board processing are also getting higher and higher. "Three-proof" coating, that is, moisture-proof, mildew-proof, and salt-spray-proof, aims to make printed circuit boards (PCB) resistant to harsh environments during storage and work, increase mechanical properties, and prevent sudden changes in temperature, "Condensation fog" in the air reduces the insulati...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D183/07C09D183/05C09D183/04C09D7/62
CPCC09D183/04C09D7/62C08L2205/035C08L2205/025C08L83/04C08K3/36
Inventor 刘俊杰安多杨化彪顾翠瑜钟炽强
Owner 广州玖盈化工材料有限公司
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