多壁碳纳米管杂化改性苯乙烯-二乙烯基苯共聚物载体的制备及性能  

Preparation and Properties of Multi-walled Carbon Nanotubes Hybrid Modified Styrene-Divinylbenzene Copolymer Carrier

作　　者：樊玥 王一清 刘才林[1] 任先艳[1] 杨海君[1] FAN Yue;WANG Yiqing;LIU Cailin;REN Xianyan;YANG Haijun(School of Materials and Chemistry,Southwest University of Science and Technology,Mianyang 621010,Sichuan,China)

机构地区：[1]西南科技大学材料与化学学院,四川绵阳621010

出　　处：《西南科技大学学报》2024年第1期1-8,84,共9页Journal of Southwest University of Science and Technology

基　　金：国家自然科学基金项目(22076154)。

摘　　要：苯乙烯-二乙烯基苯共聚物(SDB)为载体的Pt/SDB疏水催化剂是氢-水液相催化交换(LPCE)技术的重要材料。针对SDB载体疏水性不强和强度低等问题,通过KH570,KH560和KH550硅烷偶联剂改性多壁碳纳米管(MWCNTs),再杂化改性SDB载体。结果表明:杂化改性的SDB载体的水接触角提高了20°以上,抗压强度为基础SDB载体的1.6~3.8倍,热重分析的初始热分解温度提高了4.6~15.8℃。KH570处理的MWCNTs含有双键,可实现与苯乙烯、二乙烯基苯的三元共聚且掺杂均匀,杂化改性SDB载体效果最佳。Pt/SDB hydrophobic catalyst with styrene-divinylbenzene copolymer(SDB)as the carrier is an important material for hydrogen-water liquid-phase catalytic exchange(LPCE)technology.In order to solve the problems of poor hydrophobicity and low strength of the SDB carrier,multi-walled carbon nano-tubes(MWCNTs)modified by silane coupling agents such as KH570,KH560 and KH550 were hybridized to modify the SDB carrier.The results show that the water contact angle of the SDB carrier modified by hybridization is increased by more than 20°,and the compressive strength is 1.6-3.8 times that of the SDB carrier.The initial thermal decomposition temperature of thermogravimetric analysis increases by 4.6-15.8℃.Among them,MWCNTs treated with KH570 contains double bonds,which can realize ternary copolymerization with styrene and divinylbenzene,and the doping is uniform.The hybrid modified SDB carrier has the best effect.

关 键 词：苯乙烯-二乙烯基苯共聚物 多壁碳纳米管 杂化改性 疏水性 抗压强度 

分 类 号：O643.36[理学—物理化学] TQ426.65[理学—化学]