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

Rubber shock absorber with high anti-reversion performance

An anti-reversion agent and reversion technology, applied in the chemical industry, can solve the problems of poor flexural fatigue resistance and aging resistance, low dynamic and static stiffness ratio, restricting development, etc., to avoid loss of elasticity and high tensile strength. , the effect of prolonging the service life

Active Publication Date: 2018-08-21
贾中将
View PDF8 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Natural rubber is widely used in the field of rubber shock absorption due to its outstanding comprehensive performance and low dynamic and static stiffness ratio, such as shock absorbers for various machinery and instruments, bridges and building shock absorbers, etc., but the resistance of natural rubber Defects such as flex fatigue and poor aging resistance also restrict its development.

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

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0062] The second aspect of the present invention provides the preparation method of the above-mentioned high anti-reversion rubber composition, comprising the steps of:

[0063] Add the required amount of natural rubber and the required amount of phenolic resin to the internal mixer at 80 ° C, and knead for 5 minutes at a speed of 100 rpm, then add the required amount of anti-aging agent, zinc oxide, stearic acid, White carbon black, carbon black and dispersant, and kneaded at 100rpm for 8 minutes, then added the required amount of vulcanization accelerator and sulfur respectively, and vulcanized at 135-175°C for 10-30min on a vulcanizer to obtain the obtained The above-mentioned rubber composition with high anti-reversion performance.

[0064] The third aspect of the present invention provides the application of the above-mentioned rubber composition with high anti-reversion performance, which is applied to rubber shock absorbers.

Embodiment 1

[0069] Embodiment 1 provides a rubber composition with high anti-reversion performance. The rubber composition with high anti-reversion performance includes natural rubber 100, antioxidant 2, zinc oxide 2, stearic acid 0.5, vulcanization accelerator Agent 0.5, carbon black 5, silica 20, sulfur 2, anti-reversion agent 0.2, dispersant 1, phenolic resin 2.5.

[0070] Described natural rubber is SMR20 natural rubber; Described anti-aging agent is anti-aging agent 4020 and anti-aging agent RD, and its weight ratio is 5:3; Described vulcanization accelerator is accelerator DTDM and accelerator NOBS, and its weight ratio is 5: 8; the carbon black is N660 black carbon black and N774 black carbon black, and its weight ratio is 1:1; the white carbon black is precipitated white carbon black; the anti-reversion agent is 1,6-bis( N, N'-dibenzothiazolecarbamoyl dithio)-hexane and Si69, the weight ratio is 3:5; the dispersant is polyethylene glycol, and the weight average molecular weight is...

Embodiment 2

[0074] Embodiment 2 provides a rubber composition with high anti-reversion performance. The rubber composition with high anti-reversion performance includes natural rubber 100, antioxidant 5, zinc oxide 5, stearic acid 2, vulcanization accelerator Agent 2, carbon black 15, white carbon black 30, sulfur 5, anti-reversion agent 1, dispersant 3, phenolic resin 5.

[0075] Described natural rubber is SMR20 natural rubber; Described anti-aging agent is anti-aging agent 4020 and anti-aging agent RD, and its weight ratio is 5:3; Described vulcanization accelerator is accelerator DTDM and accelerator NOBS, and its weight ratio is 5: 8; the carbon black is N660 black carbon black and N774 black carbon black, and its weight ratio is 1:1; the white carbon black is precipitated white carbon black; the anti-reversion agent is 1,6-bis( N, N'-dibenzothiazolecarbamoyl dithio)-hexane and Si69, the weight ratio is 3:5; the dispersant is polyethylene glycol, and the weight average molecular weig...

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

No PUM Login to View More

Abstract

The invention relates to the field of chemical engineering, in particular to a rubber shock absorber with high anti-reversion performance. The rubber shock absorber is prepared from a rubber composition with high anti-reversion performance. The rubber composition with high anti-reversion performance comprises 100 parts of natural rubber, 2-5 parts of an anti-aging agent, 2-5 parts of zinc oxide, 0.5-2 parts of stearic acid, 0.5-2.0 parts of a vulcanization accelerator, 5-15 parts of carbon black, 20-30 parts of white carbon black, 2-5 parts of sulfur, 0.2-1.0 part of an anti-reversion agent, 1-3 parts of a dispersing agent and 2.5-5.0 parts of phenolic resin.

Description

technical field [0001] The invention relates to the field of chemical industry, in particular to a rubber shock absorber with high anti-vulcanization reversion performance. technical background [0002] With the rapid development of modern industry today, vibration has become a problem that seriously affects various fields. For example, environmental vibration endangers the safety and stability of buildings, especially high-rise buildings. Industrial vibration affects the accuracy of equipment and instruments. The consequences of some vibrations will directly It poses a huge threat to personal and property safety. Reducing or eliminating the vibration of the vibration source is the most fundamental and best way to eliminate the vibration, but from the actual situation, the vibration cannot be completely eliminated, so other ways should be used. At present, in the industry, the main method is to apply various shock-absorbing products, and rubber shock-absorbing products are ...

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
IPC IPC(8): C08L7/00C08L61/06C08L71/02C08K13/06C08K13/02C08K9/06C08K3/34C08K3/22C08K5/09C08K3/04C08K3/36C08K3/06C08K5/18C08K5/3437C08K5/47C08K5/548
CPCC08K2003/2296C08L7/00C08L2205/03C08L61/06C08L71/02C08K13/02C08K3/22C08K5/09C08K3/04C08K3/36C08K3/06C08K5/18C08K5/3437C08K5/47C08K5/548C08K13/06C08K9/06C08K3/34
Inventor 贾中将
Owner 贾中将