偶联剂KH—792对淀粉/SBR复合材料结构和性能的影响  

Effect of Amino—Silane KH—792 on the Structure and Properties of Starch/SBR Composites

作　　者：齐卿[1] 吴友平[2] 田明[2] 梁桂花[1] 沈玲[1] 张立群[1] 

机构地区：[1]北京化工大学纳米材料先进制备技术与应用科学教育部重点实验室,北京100029 [2]北京化工大学北京市新型高分子材料制备与成型加工重点实验室,北京100029

出　　处：《特种橡胶制品》2006年第2期1-5,共5页Special Purpose Rubber Products

基　　金：教育部博士点基金(20020010011);北京化工大学青年教师奖励基金(QN0302);北京市教委重点学科建设基金(JD100100526)

摘　　要：使用氨基硅烷偶联剂KH—792制备了淀粉/SBR复合材料,对比考察了2种工艺中KH—792的不同用量对材料硫化性能、力学性能和微观相态结构的影响。结果表明,KH—792应用工艺的不同使得其反应性发生变化,突出体现于材料硫化性能的差异,但2种应用工艺下KH—792能在一定程度上提高复合材料的力学性能:在工艺Ⅰ中,能有效提高复合材料的定伸应力;在工艺Ⅱ中,能够赋予复合材料更加优异的拉伸强度和撕裂强度。SEM显示,工艺Ⅱ中填料在橡胶基体中的分散更为精细,界面结合更好。The amino-silane KH-792 was used to prepare starch/SBR composites by two ways, dry mixing（method Ⅰ ）and wet mixing（method Ⅱ）. The effect of the loading of KH-792 on the curing characters, mechanical properties and morphology of the composites prepared by the two methods was studied. The results showed that the reactions of KH-792 were different in the two kinds of composites, especially embodied in the curing characters, however the mechanical properties of the composites were improved to a certain extend;the stress of the composites prepared by method Ⅰ was higher, while the tensile strength and the tear strength of the composites were higher when the method Ⅱ was introduced. SEM showed that the composites prepared by method Ⅱ had more fine disperse phase and higher interfacial strength.

关 键 词：淀粉 丁苯橡胶 偶联剂 复合材料 性能 

分 类 号：TB332[一般工业技术—材料科学与工程]