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Fireproof silicone rubber material and preparation method thereof

A technology of silicone rubber and methyl silicone rubber, which is applied in the field of fireproof and refractory silicone rubber materials and its preparation, can solve the problems of high manufacturing cost, cumbersome processing technology, and complicated cable structure

Pending Publication Date: 2021-04-09
常州市沃科科技有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The cable structure is complicated, the processing technology is cumbersome, and the manufacturing cost is expensive

Method used

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  • Fireproof silicone rubber material and preparation method thereof
  • Fireproof silicone rubber material and preparation method thereof
  • Fireproof silicone rubber material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach

[0055] As a preferred embodiment, the raw materials of the fireproof and refractory silicone rubber material include the following components in parts by weight:

[0056] The raw materials of the A component include the following components in parts by weight:

[0057]

[0058] The raw materials of the B component include the following components in parts by weight:

[0059] 40-50 parts of the second silicone rubber;

[0060] 1-5 parts of magnesium oxide;

[0061] 20-30 parts of boric acid.

[0062] Another aspect of the present invention provides a method for preparing the fireproof and refractory silicone rubber material described in the first aspect of the present invention, the preparation method comprising: mixing the first silicone rubber, white carbon black, aluminum hydroxide, wollastonite, silicone oil, silane The joint agent is mixed to obtain the A component; the second silicone rubber, magnesium oxide, and boric acid are mixed to obtain the B component; and t...

Embodiment 1

[0082] Add 60 parts of the first silicone rubber 110-0 into the first kneader, knead for 10 minutes, then add 20 parts of white carbon black SJ-34, 50 parts of aluminum hydroxide, 20 parts of wollastonite 1250, 1.6 parts of even Joint agent A171, 8 parts of hydroxy silicone oil QLS-203, each addition needs to be kneaded for 15 minutes. It is -0.08Mpa; get the base glue A and cool it down.

[0083] Add 40 parts of the second silicone rubber 110-0 into the second kneader, knead for 10 minutes, then add 20 parts of boric acid and 3 parts of magnesium oxide in 3 times, and knead for 10 minutes each time. After forming a group, the base rubber B is obtained .

[0084] The base rubber A and the base rubber B are thoroughly mixed in a kneader to obtain the fire-resistant and refractory silicone rubber material described in this patent. Add 1.5 parts of vulcanizing agent Shuang24 into the fireproof and refractory silicone rubber material on the open mill, mix evenly, and make firepr...

Embodiment 2

[0086] Add 60 parts of the first silicone rubber 110-0 into the first kneader, knead for 10 minutes, then add 30 parts of white carbon black SJ-34, 50 parts of aluminum hydroxide, 20 parts of wollastonite 1250, 2 parts of even Joint agent A171, 10 parts of hydroxy silicone oil QLS-203, kneading for 15 minutes each time, after forming a lump; continue kneading and heat up to 130°C for vacuum heat treatment, the kneading temperature in the kneader is 160°C, the time is 1h, the vacuum degree It is -0.08Mpa; get the base glue A and cool it down.

[0087] Add 40 parts of the second silicone rubber 110-0 into the second kneader, knead for 10 minutes, then add 20 parts of boric acid and 3 parts of magnesium oxide in 3 times, and knead for 10 minutes each time. After forming a group, the base rubber B is obtained .

[0088] The base rubber A and the base rubber B are thoroughly mixed in a kneader to obtain the fire-resistant and refractory silicone rubber material described in this p...

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Abstract

The invention relates to the technical field of silicone rubber materials, in particular to a fireproof silicone rubber material and a preparation method thereof. Raw materials of the fireproof silicone rubber material may comprise a component A and a component B. The component A comprises first silicone rubber, white carbon black, aluminum hydroxide, wollastonite, silicone oil and a silane coupling agent; and the component B comprises second silicone rubber, magnesium oxide and boric acid. The fireproof silicone rubber material can quickly undergo a decomposition reaction when meeting high temperature or flames of 400 DEG C or above so as to release gas for oxygen isolation and flame retardance, and residues quickly form a hard shell, so expansion deformation is small, good fireproof performance, oxygen isolation performance and flame retardance are achieved, self-extinguishing can be achieved when the material is separated from a fire, and good processability and low cost are achieved; and the material can function as a fireproof layer and an oxygen barrier layer simultaneously when applied to wire and cable structures.

Description

technical field [0001] The invention relates to the technical field of silicone rubber materials, in particular to a fireproof and refractory silicone rubber material and a preparation method thereof. Background technique [0002] With the development of the country and the improvement of people's living standards, large public facilities and entertainment venues such as high-rise buildings, large supermarkets, subways, and tunnels are increasing. Every year, fire accidents will cause great casualties and property losses. The importance of fire protection and fire protection is becoming more and more prominent. The demand for flame retardant and fire resistance in wire and cable has become the general trend. [0003] However, general fire-resistant materials have no fire-resistant function, and cannot keep the power unobstructed and ensure the safety of personnel in the event of a fire. The refractory materials currently appearing on the market are expensive and have poor fl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L83/04C08L83/07C08K13/04C08K7/26C08K3/22C08K7/10C08K3/34C08K3/38C08K5/14C08K5/5425
CPCC08L83/04C08L2201/02C08L2201/14C08K2003/2227C08K2003/222C08L2205/035C08L2203/202
Inventor 郑亚森臧育锋张磊曹俊秦克良宋永琦
Owner 常州市沃科科技有限公司
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