TY - JOUR AU - Yan, Kui AU - Chen, Yizhe AU - Wang, Hui AU - Gao, Cheng AU - Bai, Qiuyang PY - 2020 DA - 2020/02/29 TI - Design and Research of Skin Injection Molded TPE Materials Based on Genetic Algorithm SP - 6910535 VL - 2020 AB - Thermoplastic elastomer (TPE) is a kind of new automotive interior material with high elasticity and strength. Traditional TPE materials were difficult to meet the new requirements of large-scale automotive interior parts with complex shape. In this study, the TPE material was prepared using different mass ratios with homopolymer polypropylene (PP), styrene-ethylene/butene-styrene copolymer (SEBS), naphthene oil (NO), magnesium stearate (MGST), and polytetrafluoroethylene (PTFE). A quality-prediction and multiobjective optimization method based on a genetic algorithm was applied. The parameters that had an important effect on the forming quality were selected using an orthogonal testing method. Results showed that using the proposed method, a new TPE material is obtained with excellent scratch resistance ability and high MFI. The mechanisms of the addition of PTFE and MGST were analysed according to SEM images. The peel strength of the optimized part was measured to prove the coating quality of TPE material. SN - 0730-6679 UR - https://doi.org/10.1155/2020/6910535 DO - 10.1155/2020/6910535 JF - Advances in Polymer Technology PB - Hindawi KW - ER -