Fireproof heat-insulation silicon rubber and preparation method thereof

A technology of silicone rubber and additives, which is applied in the field of fire-proof and heat-insulating silicone rubber and its preparation
CN104817844AActive Publication Date: 2015-08-05NORTHWEST RUBBER & PLASTIC RES & DESIGN INST CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
NORTHWEST RUBBER & PLASTIC RES & DESIGN INST CO LTD
Publication Date
2015-08-05

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Abstract

The invention discloses a fireproof heat-insulation silicon rubber and a preparation method thereof. The fireproof heat-insulation silicon rubber comprises the following components in percentage by mass: 45-55% of substrate, 10-15% of high-temperature-resistant functional filler, 15-25% of flame retardant, 10-20% of reinforcing agent and 1-5% of other assistants, totaling 100%. The preparation method of the fireproof heat-insulation silicon rubber comprises four steps. The invention provides a silicon rubber material with excellent fireproof and heat-insulation properties, which is prepared by compounding the high-temperature-resistant functional material, flame-retardant material, reinforcing material and other assistants according to the optimized formula. The fireproof heat-insulation silicon rubber is especially suitable for fireproof heat-insulation requirements of rocket engines and potential fire region working condition requirements of airplanes.
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Description

technical field

[0001] The invention belongs to the field of silicone rubber composite materials, and in particular relates to a fire-proof and heat-insulating silicone rubber and a preparation method thereof. Background technique

[0002] Silicone rubber is a polymer elastic material with both inorganic and organic molecular chains. Its molecular main chain is composed of silicon atoms and oxygen atoms alternately (-Si-O-Si-), and the bond energy of silicon-oxygen bonds is as high as 370kj. / mol, has high thermal stability, and can reach 300°C in a short time. Introduce methyl, vinyl and diphenylsilane chain links into the main chain of the silicone rubber molecule, that is, phenyl silicone rubber. In addition to the high temperature and aging resistance of silicone rubber, it also has radiation resistance and ablation resistance. performance.

[0003] Compared with traditional nitrile rubber, neoprene, and EPDM, silicone rubber ablation-resistant materials have obvious a...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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