Recycled Polyarylene Sulfide Composition Balancing Strength and Fluidity
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Solution Overview
Problem
Existing technologies do not effectively address the use of recycled polyarylene sulfide resins, particularly in fibrous filler-reinforced compositions, maintaining mechanical properties and fluidity, and there is a lack of methods for their efficient reuse.
Innovation Solution
A fibrous filler-reinforced recycled polyarylene sulfide resin composition comprising a polyarylene sulfide resin, recycled polyarylene sulfide resin, and fibrous filler, with specific ratios and processing conditions to maintain mechanical properties and fluidity, using a twin-screw extruder for melt-kneading and extruding.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If recycled polyarylene sulfide resin is used in fibrous filler-reinforced compositions, then sustainability and waste reduction are improved, but mechanical properties and fluidity deteriorate
Solution Approach 1:
The patent applies parameter changes by precisely controlling the ratio of recycled polyarylene sulfide resin (10-50 parts by weight per 100 parts of total polyarylene sulfide resin) and fibrous filler content (20-40 parts by weight per 100 parts of total polyarylene sulfide resin). These parameter optimizations ensure that mechanical properties and fluidity are maintained at acceptable levels while maximizing the use of recycled material for sustainability.
2Reliability
If recycled polyarylene sulfide resin is used in fibrous filler-reinforced compositions, then sustainability and waste reduction are improved, but fluidity deteriorates
Solution Approach 1:
The patent optimizes fluidity by controlling the recycled resin content within 10-50 parts by weight per 100 parts of total polyarylene sulfide resin and adjusting processing parameters including melt temperature (280-320°C) and shear rate during extrusion. This parameter optimization maintains adequate fluidity for processing while maximizing recycled material utilization.
3Reliability
If high content of recycled polyarylene sulfide resin is used, then material cost and environmental impact are improved, but manufacturing precision deteriorates
Solution Approach 1:
The patent maintains manufacturing precision by controlling the recycled resin content within 10-50 parts by weight per 100 parts of total polyarylene sulfide resin and optimizing processing parameters including melt temperature (280-320°C), extrusion speed, and molding conditions. These controlled parameters ensure consistent product quality even with high recycled content.
Solution Approach 2:
The patent uses fibrous filler (20-40 parts by weight per 100 parts of total polyarylene sulfide resin) as an intermediary that helps maintain structural integrity and processing consistency. The fibrous filler compensates for potential variations in recycled resin properties, ensuring stable manufacturing precision.
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 composition achieves excellent impact resistance and fluidity, suitable for electrical and electronic components, automotive parts, and water area applications, promoting sustainable industrialization.
Implementation Method 1
a twin-screw extruder for melt-kneading and extruding
Implementation Method 2
a melt viscosity of 100 to 3000 poises as measured under the conditions of a measurement temperature of 315°C and a load of 10 kg by a capillary rheometer flow tester
Data Source
AI summary
Provided are a fibrous filler-reinforced recycled polyarylene sulfide resin composition that contains a recycled polyarylene sulfide resin, without affecting the inherent heat resistance, chemical resistance and fluidity of a polyarylene sulfide resin, and a production method thereof. The fibrous filler-reinforced recycled polyarylene sulfide resin composition contains a polyarylene sulfide resin (A), a recycled polyarylene sulfide resin (B) and a fibrous filler (C), the polyarylene sulfide resin (A) having a melt viscosity of 100 to 3000 poises, the amount of the recycled polyarylene sulfide resin (B) contained being 10 to 250 parts by weight per 100 parts by weight of the polyarylene sulfide resin (A), and the amount of the fibrous filler (C) contained being 10 to 60 parts by weight per 100 parts by weight in total of the polyarylene sulfide resin (A) and the recycled polyarylene sulfide resin (B).