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Vehicle siloxane damping elastomer

A technology of siloxane and elastomer, applied in the field of siloxane damping elastomer for vehicles, which can solve problems affecting the normal operation of instruments and instruments, shortening machine life, structural fatigue damage, etc., and achieves convenient production and processing and uniformity of the system Strong and reduce the weight of the vehicle

Active Publication Date: 2015-05-20
LIUZHOU XINGTA IND & TRADE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] With the development of modern industry, transportation and aerospace industry, the phenomenon of vibration generated by mechanical operation can be seen everywhere. Aircraft, ships, machine tools and various power machinery all generate vibration and noise, and the harm to human beings is becoming more and more prominent. Not only the pollution The environment will also affect the normal operation of instruments and instruments, accelerate the fatigue damage of the structure, shorten the life of the machine, etc.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] Add 600 grams of polysiloxane matrix resin, such as polydimethylsiloxane, etc., into a 2.5L reaction kettle, add 6 grams of organobentonite, 60 grams of oligomeric polyester polyol with a number average molecular weight of 100, and 300 grams of silicone oil , 120 grams of silica powder with a particle size of 50 microns and 120 grams of glass beads with a particle size of 50 microns are mixed evenly and then added to the reactor together with 12 grams of antioxidants, stirred, and the stirring speed is 120 raund / min. 5°C / min, heat up to 90°C and keep it warm for 1h, then knead at 120°C for 30-90min to extrude and granulate. The vibration damping of the resulting elastomer at 25°C and 60°C was 17 and 22, and the vibration damping decreased by 4 at 25°C after the sample was aged for 3 months.

Embodiment 2

[0018] Add 600 grams of polysiloxane base resin, such as polydimethylsiloxane, etc., into a 2.5L reactor, add 20 grams of organobentonite, 80 grams of oligomeric polyester polyol with a number average molecular weight of 100, and 330 grams of silicone oil , 150 grams of silica powder with a particle size of 70 microns and 150 grams of glass beads with a particle size of 75 microns are mixed evenly and then added to the reactor together with 15 grams of antioxidants, stirred, and the stirring speed is 120 raund / min. 5°C / min, heat up to 90°C and keep it warm for 1h, then knead at 120°C for 30-90min to extrude and granulate. The vibration damping of the resulting elastomer at 25°C and 60°C was 18 and 24, and the vibration damping decreased by 5 at 25°C after the sample was aged for 3 months.

Embodiment 3

[0020] Add 600 grams of polysiloxane matrix resin, such as polydimethylsiloxane, etc., into a 2.5L reaction kettle, add 30 grams of organobentonite, 120 grams of oligomeric polyester polyol with a number average molecular weight of 100, and 360 grams of silicone oil. , 180 grams of silicon dioxide powder with a particle size of 80 microns and 180 grams of glass beads with a particle size of 100 microns are mixed evenly and then added to the reactor together with 18 grams of antioxidants, stirred, and the stirring speed is 120 raund / min. 5°C / min, heat up to 90°C and keep it warm for 1h, then knead at 120°C for 30-90min to extrude and granulate. The vibration damping of the obtained elastomer at 25°C and 60°C was 18 and 27, and the vibration damping at 25°C decreased by 4 after the sample was aged for 3 months.

[0021] Embodiments of the present invention can also select any value within the content range of each component of the technical scheme disclosed in the present invent...

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Abstract

The invention discloses a vehicle siloxane damping elastomer. The vehicle siloxane damping elastomer comprises the following components: 100 parts by weight of polysiloxane matrix resin, 10-20 parts by weight of oligomeric polyester polyol with number-average molar mass of 100-150, 1-5 parts by weight of organic bentonite, 50-60 parts by weight of silicone oil, 20-30 parts by weight of silica dioxide, 20-30 parts by weight of glass beads and 2-3 parts by weight of antioxidant, wherein the weight ratio of the oligomeric polyester polyol to the organic bentonite is (4-6):1. The vehicle siloxane damping elastomer disclosed by the invention has good machinability and high system homogeneity; a product obtained by machining the vehicle siloxane damping elastomer has good quality and bright and clean surface as well as good elasticity, strong sound insulation and noise elimination capacity and good stretching and restoration performance.

Description

technical field [0001] The invention relates to a damping elastic body, in particular to a silicone damping elastic body for vehicles. Background technique [0002] With the development of modern industry, transportation and aerospace industry, the phenomenon of vibration generated by mechanical operation can be seen everywhere. Aircraft, ships, machine tools and various power machinery all produce vibration and noise, and the harm to human beings is becoming more and more prominent. Not only the pollution The environment will also affect the normal operation of instruments and instruments, accelerate the fatigue damage of the structure, and shorten the life of the machine. [0003] The emergence of synthetic polymer materials has effectively solved the dilemma of natural rubber as the only choice and single source of elastomer, and changed the situation of natural rubber as a strategic material. Damping material is a new type of functional material that absorbs vibrational...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L83/04C08L67/00C08K13/06C08K3/34C08K3/36C08K7/20
Inventor 缪智刚韦柳丽
Owner LIUZHOU XINGTA IND & TRADE
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