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

Chlorine-containing rubber composition as well as application and preparation method thereof

A rubber composition and a technology for the composition, applied in the rubber field, can solve the problems of reduced physical and mechanical properties, difficult processing, limited range of chlorine content, etc., and achieve fast vulcanization speed, less addition, and improved physical or chemical properties. Effect

Active Publication Date: 2020-01-21
HANGZHOU XINGLU TECH CO LTD +1
View PDF8 Cites 7 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Chlorinated polyethylene raw rubber and vulcanized rubber products made from high-molecular-weight high-density polyethylene have high physical and mechanical properties, but the processing fluidity is not good and processing is difficult; on the contrary, low-molecular-weight high-density polyethylene raw materials The obtained chlorinated polyethylene has good processing fluidity and is easy to process, but the physical and mechanical properties are reduced
Therefore, it is difficult for the chlorinated polyethylene rubber in the prior art to have good physical and mechanical properties and processing properties at the same time.
This contradiction obviously limits the application and development of chlorinated polyethylene rubber.
[0004] In addition, since sufficient chlorine content is required to fully destroy the crystalline structure of polyethylene and obtain elasticity, the mass fraction of chlorine in chlorinated polyethylene is generally above 25%, and more commonly required to be above 30%. The production and application of chlorinated polyethylene rubber with a wider range of chlorine content is limited, and the development of chlorinated polyethylene rubber industry is also limited
[0005] Chlorosulfonated polyethylene rubber is a product similar in structure and performance to chlorinated polyethylene rubber. It also has excellent oil resistance, flame resistance, and chemical stability, but it also faces the same technical difficulties as the above-mentioned chlorinated polyethylene rubber. : It is difficult to have good physical and mechanical properties and processing properties at the same time, and the range of chlorine content is also limited, generally requiring more than 25%

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
  • Chlorine-containing rubber composition as well as application and preparation method thereof
  • Chlorine-containing rubber composition as well as application and preparation method thereof
  • Chlorine-containing rubber composition as well as application and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 22

[0123] The mixing process of Example 22 is as follows: the initial temperature of the internal mixer is set to 85° C., the rotating speed is 40 rpm, and all dry additives and liquid additives except TDD and NC are successively added, mixed for 3 minutes, and then Add the rubber matrix, after the mixing power is stable, add TDD and NC, mix for 1 minute, then remove the glue, and then on the open mill, thin pass, unload, cool, stop for 24 hours, and then return to knead to release the tablet.

Embodiment 23

[0124] The mixing process of Example 23 is as follows: set the internal mixer to an initial temperature of 85°C and a rotational speed of 40 rpm, add all dry additives and liquid additives except sulfur and DE-TU successively, and mix for 3 minutes , then add the rubber matrix, discharge the rubber after the mixing power is stable, add sulfur and DE-TU to the open mill with a roller temperature of 70°C, make triangular bags three times, and then remove the film after thinning, cool, and park for 24 hours before returning Make a piece.

[0125] All tests were prepared and tested according to the standard. The vulcanization method is molding vulcanization, the vulcanization temperature is 165°C, the pressure is 16MPa, the time is Tc90+1min, and the test is carried out after 16 hours of parking. The vulcanization time of the compression set sample is Tc90+5min. The performance data of each test sample is shown in Table 8:

[0126] Table 8

[0127]

[0128] Data Analysis: By...

Embodiment 26～28

[0131] The rubber composition formula component of embodiment 26~28 is as shown in table 9: (wherein listed relative to every 100 parts by weight of rubber matrix, the parts by weight of each component used)

[0132] Table 9

[0133]

[0134] The mixing process of embodiment 26~28 is as follows:

[0135] Set the initial temperature of the internal mixer to 85°C and the speed to 40 rpm, add all the dry additives and liquid additives except BIBP and TAIC successively, mix for 3 minutes, then add the rubber matrix, and wait until the mixing power is stable Finally, add BIBP and TAIC, knead for 1 minute and remove the glue, then on the open mill, thin pass, unload, cool, stop for 24 hours, and then return to knead to release the tablet.

[0136] All tests were prepared and tested according to the standard. The vulcanization method is molding vulcanization, the vulcanization temperature is 165°C, the pressure is 16MPa, the time is Tc90+1min, and the test is carried out after 1...

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 discloses a chlorine-containing rubber composition as well as a processing method and application thereof. The invention relates to a rubber composition. The rubber composition comprisesa rubber matrix and a compounding component, wherein every 100 parts by weight of rubber matrix comprises: not less than 5 and not more than 100 parts of chlorine-containing branched polyethylene (CBPE); not less than 5 and not more than 95 parts of chlorinated polyethylene rubber (CM);, not less than 0 and not more than 95 parts of chlorosulfonated polyethylene rubber (CSM); wherein the mass fraction of a chlorine element in the chlorine-containing branched polyethylene is not less than 10%. A branched polyethylene raw material for preparing the chlorine-containing branched polyethylene comprises an ethylene homopolymer, and the branching degree of the ethylene homopolymer is not less than 50 branched chains per 1000 carbon atoms; wherein the matching component comprises a vulcanizationsystem. The rubber composition provided by the invention has better comprehensive performance in physical and mechanical properties and processability, so that the chlorine-containing rubber composition provided by the invention is endowed with better comprehensive performance.

Description

technical field [0001] The invention belongs to the technical field of rubber, and in particular relates to a chlorine-containing rubber composition, a processing method and its application, and also relates to a method for preparing the chlorine-containing rubber composition and processing it into rubber compound. Background technique [0002] Chlorinated polyethylene rubber in the prior art is a polar special rubber with excellent oil resistance, flame resistance and chemical stability. Mainly used in wire and cable, rubber hose, conveyor belt, rubber dam, automobile inner tube, elevator handrail and other fields. [0003] The raw material for preparing chlorinated polyethylene is generally high-density polyethylene, and the type and performance of the raw material will affect the processing performance and physical and mechanical properties of the prepared chlorinated polyethylene. Among them, the molecular weight of raw materials has a significant impact on the performa...

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): C08L23/28C08L23/06C08L23/34C08K13/02C08K3/22C08K3/36C08K3/34C08K5/11C08K3/26C08K5/098
CPCC08L23/286C08K13/02C08K3/22C08K3/26C08K3/34C08K5/098C08L2203/202C08L2203/18C08L2205/035C08L2205/025C08K2003/222C08K2201/014C08K3/36C08K5/11C08L23/06C08L23/34C08K5/09C08L23/28C08F8/22
Inventor 不公告发明人
Owner HANGZHOU XINGLU TECH 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