Polyurethane-polysiloxane Copolymer Compatibilized SiR/TPU TPV with Comfortable Human Touch Toward Wearable Devices  

作　　者：Hong-Fang Zhang Qian Hao Hong-Chi Tian Peng-Jun Yao Xue-Ying Liu Bing Yu Nan-Ying Ning Ming Tian Li-Qun Zhang 

机构地区：[1]Key Laboratory of Carbon Fiber and Functional Polymers,Ministry of Education,Beijing University of Chemical Technology,Beijing,10029,China [2]Beijing Advanced Innovation Center for Soft Matter Science and Engineering,Beijing University of Chemical Technology,Beijing,100029,China [3]Shandong Dawn Polymer Material Co.,Ltd.,Longkou,265700,China [4]Zhejiang Collaborative Innovation Center for High Value Utilization of Byproducts from Ethylene Project,Ningbo Polytechnic,Ningbo,315800,China

出　　处：《Chinese Journal of Polymer Science》2023年第2期258-266,共9页高分子科学（英文版）

基　　金：financially supported by the National Natural Science Foundation of China (Nos. 51525301 and 51903009);the National Key Research & Development Plan (No. 2017YFB0307003);Chinese Scholarship Council for supporting his PhD study in Chimie Paris Tech-PSL Research University, France (No. 202106880002)

摘　　要：Because of its softness,wear resistance,biocompatibility,extremely comfortable human touch,thermoplastic vulcanizate(TPV)comprised of silicone rubber(SiR)and thermoplastic polyurethane(TPU)(SiR/TPU TPV)is especially suitable for wearable intelligent devices.Nevertheless,developing good compatibilizer is still required to prepare high performance SiR/TPU TPV.In this study,three kinds of polyurethane-polysiloxane copolymer(PU-co-PSi)with different contents of polysiloxane segment were selected,and their compatibilization effect on SiR/TPU blends was studied using nanomechanical mapping technique of AFM.The results show that using PU-co-PSi with the highest content of polysiloxane segment(PU-co-HPSi),the interface thickness largely increases,and the average size of SiR dispersed phase largely decreases,indicating its good compatibilization effect.By using PU-co-HPSi as compatibilizer,SiR/TPU TPV with a fine SiR dispersed phase and good mechanical performance were successfully prepared.The mechanism on the compatibilization effect of these PU-co-PSi on SiR/TPU TPVs was revealed.

关 键 词：Silicone rubber(SiR) Thermoplastic polyurethane(TPU) COMPATIBILIZATION Thermoplastic vulcanizate(TPV) 

分 类 号：TQ317[化学工程—高聚物工业]