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

Bulk polymerization method and crosslinking method of acrylate and silane binary copolymer

A silane binary copolymer and binary copolymer technology, applied in the chemical industry, can solve problems such as poor processability, high mold corrosion, and mold sticking, and achieve good heat aging resistance, pure products, and high crosslinking degree Effect

Pending Publication Date: 2022-04-22
上海高分子功能材料研究所
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Some of the acrylate rubber vulcanization systems at the vulcanization point in the prior art have poor heat aging resistance, some require secondary vulcanization, and some have poor processability, will stick to the mold, and are more corrosive to the mold

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

[0037] The test is a test of bulk polymerization of ethyl acrylate, vinyltrimethoxysilane, and azobisisobutyronitrile according to the ratio of substances (95%: 5%: 0.5‰).

[0038] Blend ethyl acrylate, vinyltrimethoxysilane and initiator and heat for free radical reaction. The heating rate is 1°C / min. When the temperature reaches 84°C, the solution becomes thicker. Stop heating. Immediately remove the heat source to stop the reaction;

[0039] The reactants were taken out, and put into a vacuum oven at 100° C. for 4 hours to obtain a binary copolymer with a crosslinking degree of 0.

[0040] Then soak the binary copolymer in PH4 solution at 85 DEG C for 12 hours, and the degree of crosslinking reaches 99.3%.

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 bulk polymerization method and a cross-linking method of an acrylate and silane binary copolymer. The method comprises the following steps: putting acrylate, silane and an initiator into a reactor according to mass ratios of 90-98%, 2-10% and 0.01-1% respectively, heating and stirring, and gradually heating the reactor to carry out bulk polymerization reaction; when the solution begins to thicken, continuing heating is stopped, a preheating reaction is utilized, and after implosion of the solution occurs, a heat source is immediately unloaded to stop the reaction. According to the invention, acrylate is used as a main unit, silane is used as a vulcanization point monomer, a biopolymer is produced by a bulk polymerization method, the product is pure and does not pollute the environment, and no other polymerization methods are needed to recycle a solution. The linear biopolymer obtained by bulk polymerization can be soaked in an acidic aqueous solution to form a cross-linked (also called as vulcanization) molded structure, and has the advantages of simplicity, cleanness, high cross-linking degree (up to more than 96%), and good thermal aging resistance.

Description

technical field [0001] The invention belongs to the technical field of chemical industry, and in particular relates to a bulk polymerization method and a crosslinking method of acrylate and silane binary copolymers. Background technique [0002] Acrylate rubber (hereinafter referred to as ACM) is an elastomer obtained by copolymerizing acrylate as the main monomer. Its main chain is a saturated carbon chain and its side groups are polar ester groups. Due to the special structure endowing it with many excellent characteristics, such as: heat resistance, aging resistance, oil resistance, ozone resistance, ultraviolet resistance, etc., ACM is widely used in various high temperature and oil resistance environments, and has become a focus of development and promotion in the automotive industry in recent years. A variety of sealing materials, especially high-temperature-resistant oil seals, crankshafts, valve stems, cylinder gaskets, hydraulic oil pipes, etc. for automobiles, almo...

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): C08F220/18C08F230/08C08F2/02C08J3/24C08L33/08
CPCC08F220/1802C08F2/02C08J3/24C08J2333/08C08F230/085
Inventor 穆肖斌李骥安
Owner 上海高分子功能材料研究所
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