POE-g-MAH增韧PA12T复合材料的制备与性能  

Preparation and Properties of PA12T Composite Toughened by POE-g-MAH

作　　者：付鹏[1,2,3] 王基班 陈相见 张晓朦 崔喆 刘民英[1,2,3] 赵清香 Fu Peng;Wang Jiban;Chen Xiangjian;Zhang Xiaomeng;Cui Zhe;Liu Minying;Zhao Qingxiang(School of Materials Science and Engineering,Zhengzhou University,Zhengzhou 450001,China;Henan Key Laboratory of Advanced Nylon Materials and Application(Zhengzhou University),Zhengzhou 450001,China;Engineering Laboratory of High Performance Nylon Engineering Plastics of China Petroleum and Chemical Industry,Zhengzhou 450052,China)

机构地区：[1]郑州大学材料科学与工程学院,郑州450001 [2]河南省先进尼龙材料及应用重点实验室(郑州大学),郑州450001 [3]中国石油和化工行业高性能尼龙工程塑料工程实验室,郑州450052

出　　处：《工程塑料应用》2019年第11期42-46,共5页Engineering Plastics Application

基　　金：国家重点研发计划(2017YFB0307600);河南省重大科技专项(181100211200)

摘　　要：使用不同质量分数的马来酸酐接枝聚烯烃弹性体(POE-g-MAH)对半芳香尼龙聚对苯二甲酰十二碳二胺(PA12T)进行共混改性,制备了具有较高韧性的PA12T复合材料,并研究了POE-g-MAH含量对复合材料力学性能、热性能及断面形貌的影响。结果表明,POE-g-MAH的加入有效地提高了复合材料的耐冲击性能,且当其质量分数为10%时,复合材料在冲击实验过程中便已无法冲断,即已具备了非常优异的耐冲击性能。由于POE-g-MAH相较于PA12T具有较低的强度,因此,复合材料的拉伸强度、弯曲强度和热变形温度随着POE-g-MAH含量的增加而有所下降。当复合材料中POE-g-MAH的质量分数为35%时,复合材料的拉伸强度、弯曲强度以及热变形温度分别降低至49.8 MPa,24.4 MPa和113.1℃,相较于PA12T基体,其保持率分别为61.5%,39.7%和92.5%。Semi-aromatic nylon poly(dodecamethylene terephthalamide)(PA12T)was toughened by maleic anhydride grafted polyolefin elastomer(POE-g-MAH)with different mass fractions,and the PA12T composites with outstanding toughening performance were successfully fabricated.Furthermore,the effects of POE-g-MAH content on mechanical properties,thermal properties as well as sectional morphologies of the final composites were deeply investigated.Results demonstrate that with the addition of POE-g-MAH,the impact resistance of the composite is enhanced obviously,and when the mass fraction of POE-g-MAH is 10%,the sample is not fractured after the notch impact test,which means that the composite has good impact resistance.Because of the lower strength of POE-g-MAH compared with PA12T,the tensile strength,bending strength and heat distortion temperature of the composite are decreased with the increase of POE-g-MAH.When the mass fraction of POE-g-MAH is 35%,the tensile strength,bending strength and heat distortion temperature of the composite are reduced to 49.8 MPa,24.4 MPa and 113.1℃,and the holding ratios are 61.5%,39.7%and 92.5%,respectively.

关 键 词：半芳香尼龙 聚对苯二甲酰十二碳二胺 马来酸酐接枝聚烯烃弹性体 增韧 

分 类 号：TQ323.6[化学工程—合成树脂塑料工业]