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Preparation method of ceramic flame-retardant foamed silica gel material

A technology of ceramicized flame retardant and foamed silica gel, which is applied in the field of preparation of ceramicized flame retardant foamed silica gel materials, can solve the problems such as the inability to effectively guarantee the expansion of secondary combustion and runaway, and achieve excellent foaming uniform stability, Provides flame retardant, good production efficiency

Pending Publication Date: 2022-04-22
新纳奇材料科技江苏有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The foamed silicone material produces non-toxic smoke when it is passively burned, but only powders such as silica and alumina are left after burning, which cannot effectively guarantee the expansion and loss of control of the secondary combustion in the fire environment

Method used

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  • Preparation method of ceramic flame-retardant foamed silica gel material
  • Preparation method of ceramic flame-retardant foamed silica gel material
  • Preparation method of ceramic flame-retardant foamed silica gel material

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preparation example Construction

[0029] figure 1 It is a flowchart of an embodiment of a method for preparing a ceramic flame-retardant foamed silica gel material according to the present invention. As shown in the figure, the present invention provides a method for preparing a ceramic flame-retardant foamed silica gel material, which includes the following steps:

[0030] (1) The preparation of vinyl silicone resin comprises the following steps:

[0031] S1. Mix methyl orthosilicate, methyltrimethoxysilane, water glass, hydroxyl-terminated polydimethylsiloxane, and aluminum hydroxide according to the ratio of 40:30:5:15:10 and stir at high speed to disperse, add Potassium hydroxide 3ppm, gradually warming up to 60 degrees and constant temperature for 2 hours, airtight heating to 90 degrees and stirring and dripping into 5 parts of pure water to obtain prepolymer;

[0032] S2. Keep the above-mentioned prepolymer at 90 degrees for 30 minutes, then add 5 parts of vinyl double-capped heads, heat up to 130 degre...

Embodiment 1

[0039] The invention provides a method for preparing ceramic flame-retardant foamed silica gel material, comprising the following steps:

[0040] (1) The preparation of vinyl silicone resin comprises the following steps:

[0041] S1. Mix methyl orthosilicate, methyltrimethoxysilane, water glass, hydroxyl-terminated polydimethylsiloxane (107), and aluminum hydroxide in a ratio of 40:30:5:15:10 and stir at high speed Disperse, add potassium hydroxide 3ppm, gradually raise the temperature to 60°C and keep the temperature for 2 hours, heat up to 90°C in airtight, stir and drop in 5 parts of pure water to obtain the prepolymer;

[0042] S2. Keep the above-mentioned prepolymer at 90 degrees for 30 minutes, then add 5 parts of vinyl double-capped heads, heat up to 130 degrees in airtight, add 45 parts of pure water dropwise and stir for 3 hours, add phosphoric acid solution, and drop chlorine Phosphazene 100PPM stirring;

[0043] S3. Release the pressure, slowly turn on the vacuum ...

Embodiment 2

[0048] The invention provides a method for preparing ceramic flame-retardant foamed silica gel material, comprising the following steps:

[0049] (1) The preparation of vinyl silicone resin comprises the following steps:

[0050] S1. Mix methyl orthosilicate, methyltrimethoxysilane, water glass, hydroxyl-terminated polydimethylsiloxane (107), and aluminum hydroxide in a ratio of 40:30:5:15:10 and stir at high speed Disperse, add potassium hydroxide 3ppm, gradually raise the temperature to 60°C and keep the temperature for 2 hours, heat up to 90°C in airtight, stir and drop in 5 parts of pure water to obtain the prepolymer;

[0051] S2. Keep the above prepolymer at 90°C for 30 minutes, then add 10 parts of vinyl double-capped head, heat up to 130°C in airtight, add 45 parts of pure water dropwise and stir for 3 hours, add phosphoric acid solution, and drop chlorine Phosphazene 100PPM stirring;

[0052] S3. Release the pressure, slowly turn on the vacuum to greater than 0.9 ba...

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Abstract

The invention discloses a preparation method of a ceramic flame-retardant foaming silica gel material, which comprises the following steps: preparing vinyl silicone resin, preparing a base material, preparing a component A, preparing a component B flame-retardant organic silicon foam material, mixing the component A flame-retardant organic silicon foam material and the component B flame-retardant organic silicon foam material according to a mass ratio of 1: 1 during production and use, and adding the component A flame-retardant organic silicon foam material and the component B flame-retardant organic silicon foam material into the mixture to prepare the ceramic flame-retardant foaming silica gel material. And adjusting the coating or mold cavity injection opening time and the forming temperature according to the production efficiency to obtain the finished product foaming flame-retardant ceramic silicone rubber product. By adopting the preparation method of the ceramic flame-retardant foamed silica gel material, the foamed silica gel material forms porous ceramic after being passively burnt, and the porous ceramic also has excellent thermal insulation performance and can avoid further diffusion of a fire disaster, so that the production efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of preparation of silica gel materials, in particular to a method for preparing ceramic flame-retardant foamed silica gel materials. Background technique [0002] Silicone material has excellent weather resistance, long-term high and low temperature resistance, and halogen-free flame-retardant properties, making it applicable to foam materials with lightweight thermal insulation and halogen-free resistance that other foam materials do not have. Excellent combustion performance. In the new energy industry represented by electric vehicles, due to the characteristics of high-energy-density batteries that are temperature-sensitive and prone to combustion and explosion due to temperature runaway, silicone foam materials have proposed new solutions for safety performance and chemical stability while having lightweight thermal insulation. Harsh requirements. In this context silicone foams stand out due to their h...

Claims

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Application Information

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IPC IPC(8): C08L83/04C08L83/07C08K3/22
CPCC08L83/04C08K2003/2227C08K2003/2224C08L2201/02C08K3/22
Inventor 余跃胡丽娜
Owner 新纳奇材料科技江苏有限公司
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