Supercharge Your Innovation With Domain-Expert AI Agents!

Rubber composition and vulcanized rubber for vehicle tire sidewall, preparation method and application thereof

A rubber composition and vulcanized rubber technology are applied in the application of vulcanized rubber and vulcanized rubber in the tire sidewall, and the field of preparing vulcanized rubber, which can solve the problem of high strength and low rolling resistance of tire sidewall rubber, affecting the overall performance of composite materials, and high process control requirements. problem, to achieve the effect of good dynamic flexural flexibility, increased strength, and improved flexural resistance

Active Publication Date: 2021-04-09
CHINA PETROLEUM & CHEM CORP +1
View PDF2 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, it is disclosed in the above-mentioned prior art that the dispersibility of white carbon black is improved by adding silane coupling agent Si75 etc., and Si75 etc. are sulfur-containing compounds. During the high-temperature mixing process, the requirements for process control are relatively high, and the control is improper. Potential to cause scorch which can affect the overall properties of the composite
Si75, etc. are prone to produce ethanol during the processing process, and the existence of ethanol will bring hidden dangers to the safety of tires
[0005] Therefore, the above-mentioned prior art cannot fully satisfy the high strength, low rolling resistance, and good dynamic flexibility required by tire sidewall rubber containing white carbon black formulations, and it is necessary to provide a rubber composition with improved properties

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
  • Rubber composition and vulcanized rubber for vehicle tire sidewall, preparation method and application thereof
  • Rubber composition and vulcanized rubber for vehicle tire sidewall, preparation method and application thereof
  • Rubber composition and vulcanized rubber for vehicle tire sidewall, preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0066]In order to specifically explain the method of preparing a vulcanized rubber of the present invention, there is provided a preferred embodiment of the preferred embodiment.

[0067](1) Place the rubber substrate in the mesh, the rotation speed is 50 to 120 rpm, the initial kicking temperature is 70 ~ 90 ° C, and the plastic flowing time is 0.1 to 1 min under conditions; then rubber modification The component A is introduced into the above-mentioned mesh for first kneading to obtain a phase of a master.

[0068](2) The one-stage master gel is added to the mesenchymal mixture for 3-5 hours in the mesh, which is added to the mesenter-containing mixture of white carbon black, carbon black, activator, anti-aging agent and softener. Get two-stage masterpiece;

[0069](3) Set the rotation speed of the unfaming machine to be 50 ~ 100 rpm, the initial kicking temperature is 25 ~ 50 ° C, after plasticizing the two - stage master gum, adding the component C containing the accelerator and sulfuriz...

Embodiment 1

[0101]Rubber composition formula: 60 parts by weight of natural rubber, 40 parts by weight of the tenth rubber, 3-mercaptopropionic acid (rubber modifier) ​​3 parts by weight, carbon black N550 20 parts by weight, carbon black N330 30 parts by weight, TDAE (softener), 4 parts by weight, stearic acid (activator), 0.5 parts by weight of sulfur (vulcanizing agent), 5 weight, TBBS (accelerator) Part, anti-aging agent 4020 (anti-aging agent) 1 part by weight.

[0102]Preparation process of vulcanized rubber:

[0103](1) The rubber substrate, rubber modifier is first mixed, resulting in a mapping; specifically, the natural rubber, a tall-dicyser is added to the intimer, and the rotational speed is 80 rpm, and the initial kneading temperature is 80 ° C. The raw gum is 0.5 min; the rubber modifier is added to the above-mentioned mesh, the mixing temperature is 90 ° C, the kneading time is 7 minutes, resulting in a phase of the master glue;

[0104](2) The second blend of the one-stage master gel and...

Embodiment 2

[0109]Rubber composition formula: 40 parts by weight of natural rubber, 60 parts by weight of TDB, 4-mercaptobutyric acid (rubber modifier) ​​8 parts by weight, white carbon black 50 parts by weight, carbon black N550 parts by weight, TDAE (softening 5 parts by weight, zinc oxide (activator) 4 parts by weight, stearic acid (activator) 3 parts by weight, sulfur (vulcanizing agent) 4 parts by weight, accelerator D (promoter) 1000 parts, anti-aging agent 4020 (Anti-aging) 2 parts by weight.

[0110]Preparation process of vulcanized rubber:

[0111](1) The rubber substrate, rubber modifier is first mixed, resulting in a mapping; specifically, the natural rubber, a tall-dicyser is added to the intimer, and the rotational speed is 80 rpm, and the initial kneading temperature is 80 ° C. The raw gum is 0.5 min; the rubber modifier is added to the above-mentioned mesh, the mixing temperature is 100 ° C, the kneading time is 5 min, resulting in a phase of the master glue;

[0112](2) The second blend ...

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
specific surface areaaaaaaaaaaa
specific surface areaaaaaaaaaaa
specific surface areaaaaaaaaaaa
Login to View More

Abstract

The invention relates to the field of rubber, and discloses a rubber composition for tire sidewalls, vulcanized rubber and a preparation method and application thereof. The composition contains a rubber matrix, a rubber modifier, white carbon black, carbon black, and an activator , anti-aging agent, softener, accelerator and vulcanizing agent, wherein, the rubber modifier is a mercapto acid monomer, and the mercapto acid monomer is provided by at least one of the compounds shown in formula (1) , the rubber matrix is ​​a mixture of butadiene rubber and natural rubber. The rubber composition of the present invention has the advantages of high strength, low rolling resistance, and good dynamic flexibility, and the vulcanized rubber formed from the composition can be used for sidewalls of vehicle tires.

Description

Technical field[0001]The present invention relates to the field of rubber, and more particularly to a rubber composition for a vehicle tire side, a method of preparing a vulcanized rubber, and a vulcanized rubber and a vulcanized rubber obtained in the vehicle tire, which are prepared by the method.Background technique[0002]In recent years, in order to adapt to the safety of automobile tires, environmental protection, green development trends, non-oil resources such as white carbon black, due to its ability to reduce tire rolling resistance, saving automotive fuel consumption, etc., increasing importance in the tire field, but due to The surface polarity of white carbon is made abnormally difficult in the dispersion in the rubber matrix, and thus the application has been restricted.[0003]CN 104530501A discloses a rubber composition for color tire tire side resistance to zone resistance, with bright colors, better resistance to color resistance, dark color fetal side tires in a stron...

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 Patents(China)
IPC IPC(8): C08L7/00C08L9/00C08K13/02C08K5/37C08K3/36C08K3/04C08K3/22C08K5/09C08K3/06B29C35/02B29B7/00
CPCB29B7/002B29C35/02C08K2003/2296C08K2201/014C08L7/00C08L9/00C08K13/02C08K5/37C08K3/36C08K3/04C08K3/22C08K5/09C08K3/06Y02T10/86
Inventor 王丽丽解希铭孙攀郑方远
Owner CHINA PETROLEUM & CHEM CORP
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com