Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Modified butadiene rubber, and preparation method and application thereof

A butadiene rubber modification technology, applied in the field of rubber modification, can solve the problems of low tear strength, puncture resistance and unsatisfactory resistance to chipping and chipping, and achieve good wet skid resistance and low rolling Good resistance, the effect of increasing the amount of use

Active Publication Date: 2019-07-16
PETROCHINA CO LTD
View PDF3 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, due to the limitation of the molecular structure of cis-butadiene rubber, the tear strength of vulcanized rubber and rubber products such as automobile tires obtained by subsequent processing is low, and the resistance to puncture and chipping is not ideal.

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
  • Modified butadiene rubber, and preparation method and application thereof
  • Modified butadiene rubber, and preparation method and application thereof
  • Modified butadiene rubber, and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] This embodiment provides a method for preparing modified butadiene rubber. See Table 1 for the specific process flow, including the following steps:

[0049] Dissolving 100 parts by weight of butadiene rubber in hexane to obtain a rubber solution, wherein the number average molecular weight of the butadiene rubber is about 82,000 and the molecular weight distribution index is 1.8;

[0050] Add 20 parts by weight of phenolic resin and 5 parts by weight of carbon black to the above-mentioned rubber solution, and stir uniformly to obtain a mixture;

[0051] Ethanol was added to the above mixture to separate the solid mixture composed of butadiene rubber, phenolic resin and carbon black into layers. After solid-liquid separation, the resulting solid mixture was heated and dried to further remove the organic solvent in it to obtain a modified Sexual butadiene rubber.

[0052] According to the standard test formula (non-oil-extended rubber) described in Table 1 in "GB / T 8660-2008 Sol...

Embodiment 2

[0060] This embodiment provides a method for preparing modified butadiene rubber. See Table 1 for the specific process flow, including the following steps:

[0061] 100 parts by weight of butadiene rubber was dissolved in toluene to obtain a rubber solution, wherein the number average molecular weight of the butadiene rubber was about 105,000 and the molecular weight distribution index was 2.0.

[0062] Add 25 parts by weight of terpene resin and 6 parts by weight of white carbon black to the above rubber solution, stir evenly to obtain a mixture;

[0063] Methanol is added to the above mixture to separate the solid mixture composed of butadiene rubber, terpene resin and white carbon black into layers. After solid-liquid separation, the resulting solid mixture is heated and dried to further remove the organic solvent. The modified butadiene rubber is obtained.

[0064] According to the formula and method in Example 1, the modified butadiene rubber in this implementation was mixed and ...

Embodiment 3

[0072] This embodiment provides a method for preparing modified butadiene rubber. See Table 1 for the specific process flow, including the following steps:

[0073] 100 parts by weight of butadiene rubber is dissolved in tetrahydrofuran to obtain a rubber solution, wherein the number average molecular weight of the butadiene rubber is about 112,000 and the molecular weight distribution index is 3.5.

[0074] Add 30 parts by weight of carbon five petroleum resin and 8 parts by weight of calcium carbonate to the above rubber solution, and stir the mixture to obtain a mixture;

[0075] Ethylene glycol is added to the above mixture to separate the solid mixture composed of butadiene rubber, carbon five petroleum resin and calcium carbonate into layers. After solid-liquid separation, the resulting solid mixture is heated and dried to further remove the organic Solvent to obtain modified butadiene rubber.

[0076] According to the formula and method in Example 1, the modified butadiene rubb...

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
molecular weight distributionaaaaaaaaaa
molecular weight distributionaaaaaaaaaa
molecular weight distributionaaaaaaaaaa
Login to View More

Abstract

The invention provides modified butadiene rubber, and a preparation method and application thereof. The preparation method of the modified butadiene rubber comprises the following steps: dissolving butadiene rubber in an organic solvent to obtain a rubber solution; uniformly mixing a rubber anti-tearing agent, a rubber reinforcing agent and the rubber solution to obtain a mixture; and removing theorganic solvent in the mixture to obtain the modified butadiene rubber. According to the provided preparation method of the modified butadiene rubber, anti-tear strength, puncture resistance and chunking and chipping resistance of vulcanized rubber and rubber products can be remarkably improved through treatment such as vulcanization processing and the like.

Description

Technical field [0001] The invention belongs to the technical field of rubber modification, and specifically relates to a modified butadiene rubber and a preparation method and application thereof, in particular to a modified butadiene rubber with high tear resistance and a modification process thereof, and the modification The application of butadiene rubber in rubber products such as automobile tires. Background technique [0002] Butadiene rubber (BR) is the abbreviation of cis-1,4-polybutadiene rubber. It is a structured synthetic rubber formed by polymerization of butadiene monomers, and its cis structure content is more than 95%. Because the molecular structure of butadiene rubber is relatively regular and the molecular chain is very flexible, compared with synthetic rubbers such as natural rubber or styrene butadiene rubber, butadiene rubber usually has more outstanding flexibility, elasticity, abrasion resistance, and flex resistance. Performance, low temperature resista...

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): C08J3/21C08L9/00C08L61/06C08L45/00C08L57/02C08L33/26C08K3/04C08K3/36C08K3/26C08K3/22C08L9/06C08L7/00C08L13/02B60C1/00
CPCC08J3/212B60C1/0016C08J2309/00C08J2461/06C08J2445/00C08J2457/02C08J2433/26C08J2309/06C08J2409/00C08K3/04C08K3/36C08K2003/265C08K2003/222Y02T10/86
Inventor 杨广明杨亮韩明哲闫蓉韩艳詹续芹李博泉费宇晶关宇辰仝璐张素彬王薇张玺于琦周张学全胡雁鸣
Owner PETROCHINA CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com