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Low-smoke halogen-free flame retardant composition for silicone rubber and application thereof

A silicone rubber and flame retardant technology, which is applied in the field of flame retardants for silicone rubber, can solve the problems of unstable flame retardant performance, poor temperature resistance, and easy pollution, and achieve excellent flame retardant performance, excellent mechanical properties, and good smoke effect

Inactive Publication Date: 2015-02-04
JINAN TAIXING FINE CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although metal hydroxide inorganic flame retardants have good flame retardant and environmental protection properties, they need a large amount of filling to meet the flame retardant requirements, which will greatly damage the processing performance and physical properties of silicone rubber.
Although platinum-containing compounds have excellent flame retardant effects, they are expensive and have certain toxicity, and are easily polluted during use, resulting in unstable flame retardant properties.
Melamine has a good flame retardant effect on silicone rubber, but its temperature resistance is poor, which affects the heat resistance of silicone rubber
Although brominated flame retardants have good flame retardant effect and low addition amount, they will produce toxic substances under high temperature and combustion conditions

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] A low-smoke, halogen-free, flame-retardant silicone rubber consisting of the following raw material components in parts by weight:

[0032] Silicone rubber: 100 parts of methyl vinyl silicone rubber;

[0033] Low-smoke halogen-free flame retardant composition for silicone rubber: 8 parts of melamine cyanurate, 10 parts of aluminum hydroxide (commercially available products selected from Jinan Taixing Fine Chemical Co., Ltd., particle size range of 0.8-2 μm), Ammonium polyphosphate (crystalline type II ammonium polyphosphate, its degree of polymerization is greater than 1000) 15 parts, pentaerythritol 3 parts, silane coupling agent 0.2 parts;

[0034] Preparation of low-smoke halogen-free flame retardant composition for silicone rubber: modify melamine cyanurate with silane coupling agent, and then mix the above components to obtain low-smoke halogen-free flame retardant composition for silicone rubber thing.

[0035] Reinforcing agent: 20 parts of fumed white carbon b...

Embodiment 2

[0040] A low-smoke, halogen-free, flame-retardant silicone rubber consisting of the following raw material components in parts by weight:

[0041] Silicone rubber: 100 parts of methyl vinyl silicone rubber;

[0042] Low-smoke halogen-free flame retardant composition for silicone rubber: 10 parts of melamine cyanurate, 12 parts of aluminum hydroxide (commercially available products selected from Jinan Taixing Fine Chemical Co., Ltd., particle size range of 0.8-2 μm), Ammonium polyphosphate (crystalline type II ammonium polyphosphate, its degree of polymerization is greater than 1000) 16 parts, pentaerythritol 2 parts, silane coupling agent 0.1 part;

[0043] Preparation of low-smoke halogen-free flame retardant composition for silicone rubber: modify melamine cyanurate with silane coupling agent, and then mix the above components to obtain low-smoke halogen-free flame retardant composition for silicone rubber thing.

[0044] Reinforcing agent: 30 parts of fumed white carbon b...

Embodiment 3

[0049] A low-smoke, halogen-free, flame-retardant silicone rubber consisting of the following raw material components in parts by weight:

[0050] Silicone rubber: 100 parts of methyl vinyl silicone rubber;

[0051] Low-smoke halogen-free flame retardant composition for silicone rubber: 10 parts of melamine cyanurate, 12 parts of aluminum hydroxide (commercially available products selected from Jinan Taixing Fine Chemical Co., Ltd., particle size range of 0.8-2 μm), Ammonium polyphosphate (crystalline type II ammonium polyphosphate, its degree of polymerization is greater than 1000) 18 parts, pentaerythritol 3 parts, silane coupling agent 0.3 parts;

[0052] Preparation of low-smoke halogen-free flame retardant composition for silicone rubber: modify melamine cyanurate with silane coupling agent, and then mix the above components to obtain low-smoke halogen-free flame retardant composition for silicone rubber thing.

[0053] Reinforcing agent: 40 parts of fumed white carbon ...

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Abstract

The invention provides a low-smoke halogen-free flame retardant composition for silicone rubber and application thereof. The low-smoke halogen-free flame retardant composition for silicone rubber comprises melamine urate, aluminum hydroxide, ammonium polyphosphate and pentaerythritol. A silicone rubber product added with the low-smoke halogen-free flame retardant composition not only has excellent flame retardant property, but also has excellent physical and mechanical properties and processability. The flame retardant composition is of a low-smoke and halogen-free type and is non-poisonous, odorless and friendly to the environment.

Description

technical field [0001] The invention belongs to the field of flame retardants for silicone rubber, in particular to a low-smoke halogen-free flame retardant composition for silicone rubber and its application. technical background [0002] Silicone rubber is a special kind of synthetic rubber. Different from the C-C bond main chain of most rubbers, the main chain of silicone rubber is a Si-O bond structure. The particularity of the silicone rubber structure makes silicone rubber have excellent high temperature resistance, low temperature resistance, High voltage resistance, aging resistance, electrical insulation and leakage resistance. At present, silicone rubber has been widely used in national defense and military industry, industrial and agricultural production, medical and health care and people's daily life, and has become one of the fastest-growing varieties of new materials. With the development of the rubber industry and the improvement of the level of industrializ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L83/04C08L83/07C08L83/06C08K13/06C08K9/06C08K5/3492C08K3/22C08K3/32C08K5/053C08K3/36B29C35/02
Inventor 陈家松杜庆田王林张雅民王艳辉
Owner JINAN TAIXING FINE CHEM
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