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

Self-repairing rubber material and preparation method thereof

A rubber material and self-healing technology, applied in the field of rubber materials, can solve the problems of unguaranteed temperature resistance, toughness and tensile resistance, inability to achieve multiple self-healing of rubber, and shortening the service life of rubber materials, etc. Good comprehensive performance and performance stability, good self-healing effect, and improved aging resistance

Inactive Publication Date: 2021-04-20
陈世玉
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, its components are not well compatible, its toxicity is high, and it cannot achieve multiple self-repair of rubber, so that the temperature resistance, toughness and tensile resistance cannot be guaranteed, and the service life of rubber materials is reduced; and processing and molding Harsh conditions and high energy consumption

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

Embodiment 1

[0034] A self-healing rubber material, characterized in that it is prepared from the following components by weight: 40 parts of epoxidized natural rubber, 30 parts of methyl vinyl silicone rubber, benzophenone-4,4'- Diformic acid / amino-terminated polyurethane condensation polymer 5 parts, hyperbranched secondary thiol compound 8 parts, hyperbranched polyamidoamine 2 parts, pig hair fiber 2 parts, inorganic filler 15 parts, coupling agent 2 parts, vulcanizing agent 1 part , 1 part of photoinitiator.

[0035] The photoinitiator is benzophenone; the vulcanizing agent is mixed with tetramethylthiuram disulfide and zinc dibutyldithiocarbamate in a mass ratio of 3:1; the coupling agent is selected from Self-silane coupling agent KH570.

[0036] The inorganic filler is white carbon black; the particle size of the inorganic filler is 800 mesh; the pig hair fiber is waste pig hair fiber with a length of 3 mm.

[0037] The preparation method of the benzophenone-4,4'-dicarboxylic acid...

Embodiment 2

[0042] A self-healing rubber material, characterized in that it is prepared from the following components by weight: 43 parts of epoxidized natural rubber, 32 parts of methyl vinyl silicone rubber, benzophenone-4,4'- Diformic acid / amino-terminated polyurethane polycondensate 6 parts, hyperbranched secondary thiol compound 9 parts, hyperbranched polyamidoamine 2.5 parts, pig hair fiber 2.5 parts, inorganic filler 17 parts, coupling agent 2.3 parts, vulcanizing agent 1.5 parts , 1.2 parts of photoinitiator.

[0043] The photoinitiator is benzoin ethyl ether; the vulcanizing agent is mixed with tetramethylthiuram disulfide and zinc dibutyldithiocarbamate in a mass ratio of 3:1.2; the coupling agent is silane coupling Joint agent KH560; the inorganic filler is lignin; the particle size of the inorganic filler is 900 mesh; the pig hair fiber is waste pig hair fiber with a length of 4mm.

[0044] The preparation method of the benzophenone-4,4'-dicarboxylic acid / amino-terminated pol...

Embodiment 3

[0049] A self-healing rubber material, characterized in that it is prepared from the following components by weight: 45 parts of epoxidized natural rubber, 35 parts of methyl vinyl silicone rubber, benzophenone-4,4'- Diformic acid / amino-terminated polyurethane condensation polymer 7.5 parts, hyperbranched secondary thiol compound 10 parts, hyperbranched polyamidoamine 3 parts, pig hair fiber 3.5 parts, inorganic filler 20 parts, coupling agent 2.5 parts, vulcanizing agent 2 parts , 1.5 parts of photoinitiator.

[0050] The photoinitiator is benzoin methyl ether; the vulcanizing agent is mixed with tetramethylthiuram disulfide and zinc dibutyldithiocarbamate in a mass ratio of 3:1.5; the coupling agent is silane Coupling agent KH550; the inorganic filler is carbon black; the particle size of the inorganic filler is 1000 mesh; the pig hair fiber is waste pig hair fiber with a length of 5 mm.

[0051] The preparation method of the benzophenone-4,4'-dicarboxylic acid / amino-termin...

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
Particle sizeaaaaaaaaaa
Lengthaaaaaaaaaa
Particle sizeaaaaaaaaaa
Login to View More

Abstract

The invention discloses a self-repairing rubber material, which is characterized by being prepared from the following components in parts by weight: 40 to 50 parts of epoxidized natural rubber, 30 to 40 parts of methyl vinyl silicone rubber, 5-10 parts of benzophenone-4,4'-dicarboxylic acid / amino-terminated polyurethane polycondensate, 8-12 parts of a hyperbranched secondary thiol compound, 2-4 parts of hyperbranched polyamidoamine, 2-5 parts of pig hair fiber, 15-25 parts of an inorganic filler, 2-3 parts of a coupling agent, 1-3 parts of a vulcanizing agent and 1-2 parts of a photoinitiator. The invention also provides a preparation method of the self-repairing rubber material. The self-repairing rubber material provided by the invention is better in comprehensive performance and performance stability, better in self-repairing effect and more excellent in mechanical property, temperature resistance, impact resistance and aging resistance.

Description

technical field [0001] The invention relates to the technical field of rubber materials, in particular to a self-repairing rubber material and a preparation method thereof. Background technique [0002] In recent years, with the development of science and technology and the improvement of people's living standards, the properties of rubber materials have been continuously improved, and they have been more and more widely used in various fields of people's lives, and have become an indispensable part of people's daily life. However, rubber material products are inevitably subjected to external stimuli such as thermal, mechanical, chemical and ultraviolet radiation during their molding process and subsequent use, which will cause local damage or microcracks inside the material. These local damage or microcracks Cracks are extremely difficult to detect and repair, and will lead to a decrease in the mechanical properties of the material, which may affect the use of the material,...

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): C08L15/00C08L83/07C08L75/04C08L79/02C08L89/04C08K5/37C08G18/34
Inventor 陈世玉
Owner 陈世玉
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