四针状氧化锌晶须对形状记忆聚氨酯的力学影响  

Effect of Surface Treatment on Mechanics of Tetra-Needle Like ZnO Whiskers/Shape Memory Polyurethane Composites

作　　者：张力元[1] 杨洪斌[1] 傅雅琴[1] 

机构地区：[1]浙江理工大学先进纺织材料与制备技术教育部重点实验室,杭州310018

出　　处：《浙江理工大学学报（自然科学版）》2012年第3期315-318,共4页Journal of Zhejiang Sci-Tech University(Natural Sciences)

摘　　要：以形状记忆聚氨酯(SMPU)为基体,四针状氧化锌(T-ZnOw)为无机填料,γ-甲基丙烯酰氧基丙基三甲氧基硅烷为T-ZnOw的表面处理剂,制备四针状氧化锌晶须/形状记忆聚氨酯复合材料,研究表面处理对复合材料力学性能的影响。结果表明:经表面处理的T-ZnOw制备的T-ZnOw/SMPU复合材料比纯SMPU及未经处理的T-ZnOw制备的T-ZnOw/SMPU复合材料力学性能有显著的提高;当T-ZnOw经过浴比为1∶25,含量为3%(owf)的γ-甲基丙烯酰氧基丙基三甲氧基硅烷处理后,制备的T-ZnOw/SMPU复合材料的强度较佳,且当T-ZnOw含量为3%时,复合材料的拉伸强度是纯SMPU的4倍以上。In this paper,tetra-needle like ZnO whiskers（T-ZnOw）/shape memory polyurethane（SMPU） composites is prepared by using SMPU as matrix,T-ZnOw as inorganic filler and γ-（methacryloxypropyl）trimethoxy silane as surface treating agent,and the effect of surface treatment on mechanical properties of composite materials is discussed.The results show that,the mechanical properties of T-ZnOw/SMPU composites prepared by surface treated T-ZnOw enhance significantly compared with untreated one and pure SMPU.The composites prepared by γ-（methacryloxypropyl）trimethoxy silane（3% owf,liquor ratio 1∶25） treated T-ZnOw exhibits better strength,and the tensile strength reaches four times as high as pure SMPU when the content of T-ZnOw is 3%.

关 键 词：四针状氧化锌晶须 形状记忆聚氨酯 力学性能 偶联剂 

分 类 号：TB334[一般工业技术—材料科学与工程]