Thermoplastic Poly-ether-ester Elastomer Resin Composition for Elastic Monofilaments
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Solution Overview
Problem
Poly-ether-ester elastomer resin compositions face challenges with VOC emission and mechanical durability, particularly in long-term use and weatherability, and existing stabilizers can affect product color and are difficult to integrate into engineering plastic processes.
Innovation Solution
A poly-ether-ester elastomer resin composition incorporating a heat stabilizer, ultraviolet absorber, hindered amine light stabilizer, and porous silica to enhance durability, weatherability, and VOC emission characteristics, with specific components like 2,2′-m-phenylene bis(2-oxazoline) and synthetic porous silica for capturing volatile organic compounds.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a poly-ether-ester elastomer is used to prepare an elastic monofilament, then chemical resistance is improved, but long-term durability is worsened
Solution Approach 1:
The patent creates a composite resin composition by combining poly-ether-ester elastomer with specific stabilizers (phenolic antioxidant, sterically-hindered amine photostabilizer, and metal deactivator) in defined proportions. This composite approach maintains the inherent chemical resistance of the poly-ether-ester elastomer while adding protective functions through the stabilizer system, thereby improving long-term durability without sacrificing chemical resistance.
Solution Approach 2:
The patent introduces stabilizers as intermediary substances that mediate between the poly-ether-ester elastomer and environmental factors causing degradation. The phenolic antioxidant mediates protection against oxidation, the sterically-hindered amine photostabilizer mediates protection against UV degradation, and the metal deactivator mediates protection against metal-catalyzed degradation, thereby enhancing durability while preserving the base polymer's chemical resistance.
2Reliability
If existing stabilizers are used to improve durability, then stability is improved, but product color is worsened
Solution Approach 1:
The patent optimizes the concentration parameters of different stabilizers to achieve a balance between stability improvement and color maintenance. By specifying precise ranges (phenolic antioxidant: 0.01-1.0 parts by weight, sterically-hindered amine photostabilizer: 0.01-1.0 parts by weight, metal deactivator: 0.01-0.5 parts by weight), the patent finds the optimal parameter combination that provides sufficient stabilization while minimizing color impact.
Solution Approach 2:
The patent applies different stabilizers with specialized functions at appropriate concentrations to address specific degradation mechanisms without over-stabilizing. Each stabilizer targets a particular degradation pathway (oxidation, UV, metal-catalyzed), allowing selective protection that maintains overall stability while minimizing unnecessary color changes that would result from excessive or non-specific stabilization.
3Reliability
If multiple stabilizers are mixed to improve stability, then synergistic effect is achieved, but manufacturing complexity is worsened
Solution Approach 1:
The patent combines multiple stabilizers with complementary functions (phenolic antioxidant, sterically-hindered amine photostabilizer, and metal deactivator) into a single resin composition formulation. This merging approach enables synergistic stabilization effects while simplifying the manufacturing process by incorporating all stabilizers during the polymer compounding stage, eliminating the need for separate stabilization steps.
Solution Approach 2:
The resin composition is designed to provide multi-functional stabilization through a single integrated formulation that simultaneously offers antioxidant protection, UV stabilization, and metal deactivation. This universal approach allows one resin composition to address multiple degradation mechanisms, reducing manufacturing complexity compared to applying separate stabilization treatments for each mechanism.
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 workability, low VOC content, and high durability, ensuring high perceived quality and long-term performance in applications like car seat fabrics, with improved tensile strength and reduced odor emission.
Implementation Method 1
0.05 ̃1.0 parts by weight of porous silica
Data Source
AI summary
The present invention relates to a poly-ether-ester elastomer resin composition and elastic monofilaments prepared therefrom, and more specifically to a thermoplastic poly-ether-ester elastomer resin composition and elastic monofilaments prepared therefrom, wherein the thermoplastic poly-ether-ester elastomer resin composition is prepared from a poly-ether-ester block copolymer, a heat stabilizer, a UV absorber, a hindered amine light stabilizer, and porous silica, thereby ensuring excellent perceived quality, spinnability and weavability.