Polyarylene Sulfide Resin Composite for Lightweight Structural Parts
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Solution Overview
Problem
Polyarylene sulfide resin compositions fail to meet requirements for mechanical strength, electromagnetic shielding, slidability, and moist heat resistance, particularly when used as substitutes for metal materials in electronic and vehicle-related parts.
Innovation Solution
A resin composition comprising polyarylene sulfide resin synthesized through a polymerization reaction using an aromatic disulfide-based compound as a polymerization terminator, combined with carbon fibers, wholly aromatic polyamide fibers, or glass fibers, which improves mechanical strength, electromagnetic shielding, and moist heat resistance by maintaining high residual fiber lengths during melt kneading.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Weight of moving object
If polyarylene sulfide resin is used as a substitute for metal materials, then weight and thickness are reduced, but mechanical strength and electromagnetic shielding effect are insufficient
Solution Approach 1:
The patent combines polyarylene sulfide resin with carbon fibers to create a composite material that maintains the lightweight advantage while significantly improving mechanical strength and electromagnetic shielding effect. The carbon fibers provide both structural reinforcement and conductive pathways for electromagnetic shielding.
2Reliability
If polyarylene sulfide resin is used for bearing applications, then chemical resistance is improved, but slidability and impact strength are insufficient
Solution Approach 1:
The patent combines polyarylene sulfide resin with wholly aromatic polyamide fibers to create a composite material that maintains chemical resistance while significantly improving slidability and impact strength. The polyamide fibers provide mechanical reinforcement and improve friction characteristics.
3Reliability
If polyarylene sulfide resin is used for bearing applications, then chemical resistance is improved, but impact strength is insufficient
Solution Approach 1:
The patent combines polyarylene sulfide resin with wholly aromatic polyamide fibers to create a composite material that maintains chemical resistance while significantly improving impact strength. The polyamide fibers provide mechanical reinforcement that enhances resistance to impact loads.
4Weight of moving object
If polyarylene sulfide resin is used as a substitute for metal materials, then weight is reduced, but moist heat resistance is insufficient
Solution Approach 1:
The patent combines polyarylene sulfide resin with glass fibers to create a composite material that maintains the lightweight advantage while significantly improving moist heat resistance. The glass fibers provide thermal stability and resistance to moisture-induced degradation.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The resin composition achieves enhanced mechanical strength, electromagnetic shielding, slidability, and moist heat resistance, making it suitable for applications in electronic and vehicle-related parts, such as housings, automotive components, and aircraft parts.
Implementation Method 1
a polyarylene sulfide resin (component A) synthesized through a polymerization reaction using an aromatic disulfide-based compound as a polymerization terminator
Implementation Method 2
a resin composition which comprises a polyarylene sulfide resin and is excellent in mechanical strength as well as electromagnetic shielding effect
Implementation Method 3
maintaining high residual fiber lengths during melt kneading
Data Source
AI summary
A polyarylene sulfide resin composition which is excellent in mechanical strength as well as electromagnetic shielding effect, slidability and moist heat resistance.The resin composition comprises (A) 100 parts by weight of a polyarylene sulfide resin (component A) synthesized through a polymerization reaction using an aromatic disulfide-based compound as a polymerization terminator and (B) 10 to 180 parts by weight of carbon fibers (component B), wholly aromatic polyamide fibers (component C) or glass fibers (component D).