Eureka AIR delivers breakthrough ideas for toughest innovation challenges, trusted by R&D personnel around the world.

Polyphenylene sulfide composition and preparation method thereof

A technology of polyphenylene sulfide and polyphenylene sulfide resin, which is applied in the field of polymer materials, can solve the problems of insufficient mechanical strength and impact strength, insufficient weather resistance and stability of materials, poor performance of PPS composition, etc., and achieve excellent mechanical strength Performance and processability, improvement of yellowing phenomenon and thermal stability, effect of improving compatibility and interfacial adhesion

Active Publication Date: 2021-12-31
江西聚真科技发展有限公司
View PDF9 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, PPS has insufficient toughness and insufficient impact strength in terms of mechanical strength.
In order to increase the toughness of PPS materials, inorganic fillers such as glass fibers or polymer elastomers are generally added to enhance the overall performance of PPS, but it will also further increase the processing temperature of PPS, making molding and processing more difficult, and affecting the performance of PPS in electronics. Applications in electrical, machinery manufacturing, automobile manufacturing, chemical instrumentation and aerospace industries
In addition, the externally added fillers also have the problem of poor compatibility, which makes the weather resistance and stability of the material insufficient
[0003] It has been reported in the prior art to add additives such as hyperbranched polymers to improve the processing performance of PPS compositions, but the additives are expensive, and hyperbranched polymers Poor compatibility with PPS, making the performance of the modified PPS composition poor

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
  • Polyphenylene sulfide composition and preparation method thereof
  • Polyphenylene sulfide composition and preparation method thereof
  • Polyphenylene sulfide composition and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation example 1

[0036] 1kg of polyphenylene sulfide resin powder was placed in a stirred reactor, then 10 kg of anhydrous-treated dichloromethane was added, stirred for 10 hours to swell, and then the stirred reactor was evacuated and filled with nitrogen, repeated 6 times, At a reaction temperature of 37°C, add 0.75 kg of octanoyl chloride, and at the same time add 0.75 kg of catalyst aluminum trichloride. After reacting in this system for 4.5 hours, take out the reaction product and place it in 5% glacial hydrochloric acid for 6 hours. Finally, wash 4 times with 5% sodium hydroxide solution, then wash 4 times with distilled water and ethanol respectively, finally the product is extracted in a Soxhlet fat extractor with ethanol-distilled water for 24 hours, and after drying, octanoyl grafted Modified polyphenylene sulfide.

preparation example 2

[0038] Other conditions and operations were the same as those in Preparation Example 1, except that octanoyl chloride was replaced by hexanoyl chloride of equal mass to finally obtain hexanoyl graft-modified polyphenylene sulfide.

preparation example 3

[0040] Other conditions and operations were the same as those in Preparation Example 1, except that octanoyl chloride was replaced by decanoyl chloride of equal mass to finally obtain decanoyl graft-modified polyphenylene sulfide.

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 a polyphenylene sulfide composition which is prepared from the following raw materials in parts by weight: 60-90 parts of polyphenylene sulfide resin, 10-40 parts of glass fibers, 5-15 parts of long-chain alkyl acylation modified polyphenylene sulfide and 2-10 parts of a compatilizer containing an epoxy group, wherein the sum of the weight parts of the polyphenylene sulfide and the glass fibers is 100. Aiming at the defect of poor processability of glass fiber reinforced PPS, the processability of the PPS composition is improved by adding a small amount of long-chain alkyl acylation modified polyphenylene sulfide, and meanwhile, the PPS composition has excellent mechanical properties. The polyphenylene sulfide composition and method can be applied to the fields of electronics, electrical engineering, machinery manufacturing, automobile manufacturing, chemical instruments and meters, aerospace industry and the like.

Description

technical field [0001] The invention relates to the field of polymer materials, in particular to a polyphenylene sulfide composition and a preparation method thereof. Background technique [0002] Polyphenylene sulfide (PPS) is a kind of macromolecular linear rigid structure, which has good heat resistance, flame retardancy, corrosion resistance, fatigue resistance and wear resistance. It is an emerging special engineering plastic. However, PPS has insufficient toughness and insufficient impact strength in terms of mechanical strength. In order to increase the toughness of PPS materials, inorganic fillers such as glass fibers or polymer elastomers are generally added to enhance the overall performance of PPS, but it will also further increase the processing temperature of PPS, making molding and processing more difficult, and affecting the performance of PPS in electronics. Applications in electrical, mechanical manufacturing, automobile manufacturing, chemical instrumentat...

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): C08L81/02C08L63/00C08L23/08C08K5/3435C08K5/523C08K7/14C08J5/04
CPCC08J5/043C08J2381/02C08J2481/02C08J2463/00C08J2423/08C08K5/3435C08K5/523C08K7/14
Inventor 郑俊杨建军
Owner 江西聚真科技发展有限公司
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
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