Thermoplastic vulcanized rubber composition, thermoplastic vulcanized rubber and preparation method and application thereof

A thermoplastic vulcanization and rubber composition technology, applied in the field of thermoplastic elastomers, can solve the problems of poor oil resistance, achieve excellent mechanical properties, improve oil resistance, and reduce material costs

Pending Publication Date: 2022-05-06
CHINA PETROLEUM & CHEM CORP +1
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome the problem of poor oil resistance of NBR/PA dyn

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
  • Thermoplastic vulcanized rubber composition, thermoplastic vulcanized rubber and preparation method and application thereof
  • Thermoplastic vulcanized rubber composition, thermoplastic vulcanized rubber and preparation method and application thereof
  • Thermoplastic vulcanized rubber composition, thermoplastic vulcanized rubber and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0031] According to a preferred embodiment of the invention, the operation of successively mixing and vulcanizing the components in the thermoplastic vulcanized rubber composition comprises the following steps:

[0032] (1) First mixing nitrile rubber, nylon, tannic acid, antioxidant, antioxidant and stabilizer to obtain master rubber;

[0033] (2) Extruding and granulating the master rubber to obtain master rubber particles;

[0034] (3) Dynamic vulcanization and extrusion granulation II of the master rubber particles, vulcanizing agent and vulcanizing assistant.

[0035] The amount of each component involved in the second aspect of the invention is the same as that of the corresponding component described in the first aspect of the invention. It will not be repeated here. Those skilled in the art should not understand it as a limitation of the invention.

[0036] Preferably, the conditions of the first mixing include: the mixing temperature is 120-170 ℃, preferably 130-160 ℃; Th...

Example Embodiment

[0061] Example 1

[0062] This embodiment is used to illustrate that the thermoplastic vulcanized rubber composition according to the invention prepares thermoplastic vulcanized rubber according to the formula and process parameters in Table 1 and the following methods.

[0063] The method for preparing thermoplastic vulcanized rubber comprises the following steps:

[0064](1) When the rotor speed of the internal mixer is 60rpm and the temperature is 150 ℃, conduct the first mixing of nitrile rubber, nylon 6 powder, tannin, antioxidant, antioxidant and stabilizer, and fully mix them for 7min to obtain the master rubber and evenly lower the pieces;

[0065] (2) After the master batch film is cooled to room temperature, the master batch rubber particles are obtained by extrusion granulation I in a single screw extruder under the conditions of screw speed of 130 rpm and extrusion temperature of 220 ℃;

[0066] (3) Under the condition that the screw speed is 200 rpm and the screw temp...

Example Embodiment

[0068] Example 8

[0069] In this embodiment, the thermoplastic vulcanized rubber is prepared by the formula and method similar to that in embodiment 1. The difference is that the dynamic vulcanization process parameters are different. See Table 1 for details.

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 thermoplastic elastomers, and discloses a thermoplastic vulcanized rubber composition, thermoplastic vulcanized rubber and a preparation method and application thereof. The composition comprises the following components: nitrile rubber, nylon, tannic acid, a vulcanizing agent, a vulcanizing aid, an anti-aging agent, an antioxidant and a stabilizer. According to the invention, tannic acid with a specific ratio is introduced into a nitrile rubber and nylon blending system, and compounding agents such as the vulcanizing agent, the vulcanizing aid, the anti-aging agent, the antioxidant and the stabilizer are synergistically compounded, so that the oil resistance of the original dynamically vulcanized nitrile rubber/nylon elastomer is further improved under the condition of ensuring excellent processability and mechanical property, and the service life of the elastomer is prolonged. The thermoplastic vulcanized rubber with excellent comprehensive performance is obtained, and meanwhile, the use amount of compounding agents such as an antioxidant and an anti-aging agent in an elastomer blend can be reduced by introducing tannic acid, so that the material cost is reduced.

Description

technical field [0001] The invention relates to the field of thermoplastic elastomers, in particular to a thermoplastic vulcanized rubber composition, thermoplastic vulcanized rubber, and a preparation method and application thereof. Background technique [0002] The melt of thermoplastic vulcanizate (TPV) is a non-Newtonian fluid. As a substitute for traditional vulcanized rubber, thermoplastic vulcanizate can be processed by using resin processing equipment under a wide range of process conditions and using a variety of molding processes. At the same time, due to the advantages of low energy consumption, repeatable processing, and good product stability, thermoplastic vulcanizate has been widely used in the automotive field. [0003] In the research and development of temperature-resistant and oil-resistant TPV, the dynamic vulcanization system of nitrile rubber / nylon (NBR / PA) has the most potential to realize the replacement and weight reduction of vulcanized rubber in au...

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): C08L9/02C08L77/02C08K5/1545C08K5/14
CPCC08L9/02C08L77/02C08K5/1545C08K5/14
Inventor 孙攀
Owner CHINA PETROLEUM & CHEM CORP
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap