Preparation method of silica gel with high flame retardant rating

A high flame retardant, silica gel technology, applied in the field of silica gel raw materials, can solve problems such as application limitations

Inactive Publication Date: 2015-05-27
东莞市朗晟材料科技有限公司
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Problems solved by technology

The application of this low flame re

Method used

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Embodiment Construction

[0031] A preparation method of high flame-retardant grade silica gel is provided. The high flame-retardant grade silica gel is made by mixing the following raw materials: raw material A: methyl vinyl silicone rubber; raw material B: methyl vinyl silicone rubber; raw material C: Precipitated silica; raw material D: hydroxy silicone oil; raw material E: dimethyldiethoxysilane; raw material F: zinc stearate; raw material G: stearic acid; raw material H: methyl silicone oil; raw material I: hydroxide Aluminum; raw material J: zinc stannate; raw material K: vinyltrimethoxysilane; raw material L: platinum water; raw material M: phenylacryltriazole; raw material N: iron oxide; raw material P: magnesium oxide; a small amount of raw material Q: Vulcanizing agent; The preparation steps are as follows:

[0032] It is prepared in three steps:

[0033] 1. Preparation of silica gel:

[0034] 1) Put 20 parts of raw material A and 80 parts of raw material B into the internal m...

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Abstract

The invention discloses a preparation method of silica gel with high flame retardant rating. The silica gel with high flame retardant rating is prepared by mixing the following raw materials in parts: a raw material A: methyl vinyl silicon rubber; a raw material B: methyl vinyl silicon rubber; a raw material C: precipitated silica; a raw material D: hydroxyl silicon oil; a raw material E: dimethyl diethoxy silane; a raw material F: zinc stearate; a raw material G: stearic acid; a raw material H: methyl silicone oil; a raw material I: aluminum hydroxide; a raw material J: zinc stannate; a raw material K: vinyl trimethoxy silane; a raw material L: platinum water; a raw material M: benzotriazole; a raw material N: ferric oxide; a raw material P: magnesium oxide; and a few of raw material Q: curing agent. The silica gel raw material prepared by mixing the raw materials is excellent in flame retardant performance which can reach 5VB and 5VA of UL94 flame retardant rating.

Description

technical field [0001] The invention relates to silica gel raw materials, in particular to a preparation method of UL94 flame-retardant grade 5VB and 5VA grade silica gel. Background technique [0002] In the prior art, silica gel raw materials are widely used in various industries due to their superior performance. However, when the general-purpose silica gel raw materials are close to the flame, although they will not burn immediately, they will continue to burn once they catch fire. General-purpose silicone can only reach the HB level in the UL94 flame-retardant rating, and the flame-retardant silicone products can reach the V-2, V-1, and V-0 levels in the UL94 flame-retardant rating. For fields that require extremely high flame retardant performance, the flame retardant grade is required to reach UL94 flame retardant grade 5VB, 5VA. The application of this low flame retardant grade of silicone is limited. Contents of the invention [0003] The purpose of the ...

Claims

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Application Information

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IPC IPC(8): C08L83/07C08L83/06C08L83/04C08K13/06C08K9/06C08K3/36C08K5/098C08K5/09C08K3/22C08K3/24
Inventor 谭政新
Owner 东莞市朗晟材料科技有限公司
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