Thermal-Oxidative Aging Behavior and Factors of Polystyrene-Based Thermoplastic Elastomers-Based Automotive Interior Skin

IF 2.7 3区化学 Q2 POLYMER SCIENCE

Journal of Applied Polymer Science Pub Date : 2025-01-26 DOI:10.1002/app.56769

Shuwen Liu, Dong Wang, Guomin Guo, Jihai Zhang, Jun Qiu, Aimin Zhang

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Abstract

Compared to traditional polyvinyl chloride (PVC), polyurethane (PU), and thermoplastic olefin (TPO) materials, thermoplastic elastomers (TPEs) offer advantages of complete recyclability, absence of plasticizers and solvents, superior mechanical properties, pleasing tactile characteristics, low volatile organic compounds (VOCs) emissions, and cost-effective processing. Making it an exceptional choice for environmentally friendly automotive skin materials. The automotive skin is frequently subjected to harsh conditions, such as high temperatures and oxygen exposure during use, presenting a significant durability challenge. Therefore, this study focuses on polystyrene (PS)-based thermoplastic elastomers (TPE-S) as the subject and investigates the influence of molecular weight, PS content, and chain structure in the blend on the mechanical properties of TPE-S using an accelerated thermal-oxidative aging method. Meanwhile, the changes of TPE-S during the aging process are discussed via molecular weight, crystalline structure, molecular chain structure, microphase separation structure, and tactile sensation, providing a scientific foundation for guiding the selection of TPE-S in automobile skin and heat oxidative aging resistance ability.

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来源期刊

Journal of Applied Polymer Science 化学-高分子科学

CiteScore

5.70

自引率

10.00%

发文量

1280

审稿时长

2.7 months

期刊介绍： The Journal of Applied Polymer Science is the largest peer-reviewed publication in polymers, #3 by total citations, and features results with real-world impact on membranes, polysaccharides, and much more.