Unlock instant, AI-driven research and patent intelligence for your innovation.

Fireproof heat-insulating silicon rubber and preparation method thereof

A technology of silicone rubber and diphenylsilanediol, which is applied in the field of fire-proof and heat-insulating silicone rubber and its preparation, can solve the problems of limited application, poor hardness and tensile strength of silicone rubber products, and achieve good mechanical properties and wide application Prospect, the effect of excellent fire and heat insulation performance

Inactive Publication Date: 2017-05-10
WUXI MINGSHENG TEXTILE MACHINERY
View PDF3 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the hardness and tensile strength of the obtained silicone rubber products are poor, which limits the practical application

Method used

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
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Fireproof heat-insulating silicon rubber and preparation method thereof
  • Fireproof heat-insulating silicon rubber and preparation method thereof
  • Fireproof heat-insulating silicon rubber and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] Use a double-roll mill, adjust the roll distance to 3-5 mm, add 100 grams of phenyl silicone rubber at a temperature of 55-60 ° C, and then add 22 g of a mixture of fumed white carbon black and illite powder ( Wherein, the mass ratio of fumed white carbon black and illite powder is 1:1); 15 grams of the mixture of diphenylsilanediol, dicumyl peroxide, methyldiethanolamine and polyvinyl alcohol (wherein two The mass ratio of phenylsilanediol, dicumyl peroxide, methyldiethanolamine and polyvinyl alcohol is 1:2:2:3); 5 grams of melamine polyphosphate, 5 grams of aluminum hydroxide; silicon carbide 10 gram, 8 grams of boron nitride, kneaded for 45 minutes and then heat treated at 150°C for 5 hours. After the heat treatment was completed, after the temperature dropped to room temperature, 1 gram of vulcanizing agent dicumyl peroxide was added to the open mill. 3 times of filming; after parking for 24 hours, use a flat vulcanizer to vulcanize for 10 minutes at 10MPa, 160°C to...

Embodiment 2

[0045] Use a double-roll mill, adjust the roll distance to 3-5 mm, add 100 grams of phenyl silicone rubber at a temperature of 55 ° C, and then add 30 g of a mixture of fumed white carbon black and illite powder in sequence (wherein, The mass ratio of fumed white carbon black and illite powder is 3:1); 10 grams of the mixture of diphenylsilanediol, dicumyl peroxide, methyldiethanolamine and polyvinyl alcohol (wherein diphenyl The mass ratio of silicon glycol, dicumyl peroxide, methyldiethanolamine and polyvinyl alcohol is 1:1:1:1); 1 gram of melamine polyphosphate, 4 grams of aluminum hydroxide; 10 grams of silicon carbide, 15 grams of boron nitride, mixed for 90 minutes and then heat treated at 180 ° C for 3 hours. After the heat treatment was completed, after the temperature dropped to room temperature, 3 grams of vulcanizing agent dicumyl peroxide was added to the open mill, and thin pass 3 times The next piece; after 24 hours of parking, use a flat vulcanizer to vulcanize ...

Embodiment 3

[0047] Use a double-roll mill, adjust the roll distance to 3-5 mm, add 100 grams of phenyl silicone rubber at a temperature of 60 ° C, and then add 25 g of a mixture of fumed white carbon black and illite powder in sequence (wherein, The mass ratio of fumed silica and illite powder is 2:1); 12 grams of the mixture of diphenylsilanediol, dicumyl peroxide, methyldiethanolamine and polyvinyl alcohol (wherein diphenyl The mass ratio of silicon glycol, dicumyl peroxide, methyldiethanolamine and polyvinyl alcohol is 1:1:1:1); 4 grams of melamine polyphosphate, 4 grams of aluminum hydroxide; 10 grams of silicon carbide, 10 grams of boron nitride, mixed for 60 minutes and then heat treated at 165°C for 4 hours. After the heat treatment was completed, after the temperature dropped to room temperature, 1.5 grams of vulcanizing agent dicumyl peroxide was added to the open mill, and thin pass 3 times The next piece; after 24 hours of parking, use a flat vulcanizer to vulcanize for 10 minu...

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
Login to View More

PUM

PropertyMeasurementUnit
tensile strengthaaaaaaaaaa
hardnessaaaaaaaaaa
Login to View More

Abstract

The invention relates to a fireproof heat-insulating silicon rubber and a preparation method thereof; the fireproof heat-insulating silicon rubber is prepared from, by mass, 100 parts of base material, 18-25 parts of heat-temperature-resisting functional filler, 5-10 parts of flame retardant, 22-30 parts of reinforcing agent, and 10-15 parts of synergistic effect; the preparation method of the fireproof heat-insulating silicon rubber includes four steps. Through formula optimization and coordination with the heat-temperature-resisting functional material, the flame-retarding material, the reinforcing material and other assistants, the silicon rubber material is not only excellent in fireproof heat insulation performance but also very good in physical performance; the hardness (Shore A0 is over 89, the tensile strength is 10 MPa above, and the wire ablation rate is 0.03-0.06 mm / s; the prepared fireproof heat-insulating silicon rubber is applicable to the fireproof heat insulation performance requirement of a rocket motor and the working condition of a potential fireproof zone of a plane.

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
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): C08L83/04C08L29/04C08K13/02C08K3/36C08K5/14C08K5/17C08K5/3492C08K3/34C08K3/38C08K3/22
CPCC08L83/04C08L2201/02C08L29/04C08K13/02C08K3/36C08K3/346C08K5/14C08K5/17C08K5/34928C08K3/34C08K2003/385C08K2003/2227
Inventor 张达明
Owner WUXI MINGSHENG TEXTILE MACHINERY