短多壁碳纳米管/聚碳酸酯复合材料的制备与性能  

Preparation and Property of Short Multi-walled Carbon Nanotube/Polycarbonate Composites

作　　者：赵元旭[1] 李安[1] 冯跃战[1] 王波[1] 刘春太[1] 

机构地区：[1]郑州大学材料科学与工程学院,橡塑模具国家工程研究中心,河南郑州450001

出　　处：《现代塑料加工应用》2015年第5期8-11,共4页Modern Plastics Processing and Applications

基　　金：国家自然科学基金资助项目(11172271);河南省教育厅科学技术研究重点项目(13A430641)

摘　　要：采用模压法制备了短多壁碳纳米管/聚碳酸酯(sMWNT/PC)和羧基化短多壁碳纳米管/聚碳酸酯(sOMWNT/PC)复合材料,并对2种复合材料的热稳定性和拉伸性能进行了研究。结果表明:与纯PC相比,sMWNT/PC复合材料的热稳定性和拉伸性能均有明显下降,而sOMWNT/PC复合材料则能够在保持PC原有热稳定性的同时显著提高其力学性能,其屈服强度和拉伸强度最大提高幅度分别为12.9%和12.8%。动态力学性能结果表明:sOMWNT/PC复合材料玻璃态时的储能模量随着sOMWNT含量的增加而增大,玻璃化转变温度则表现出相反的趋势。Short multi-walled carbon nanotube/polycarbonate （sMWNT/PC） and car-boxylated short multi-walled carbon nanotube/polycarbonate （sOMWNT/PC） composites were prepared by compression molding. The thermal stability and tensile properties of sMWNT/PC and sOMWNT were investigated,respectively.The results show that,com-pared with pure PC,the thermal stability and tensile properties of sMWNT/PC compos-ites decrease,However,the sOMWNT/PC can effectively enhance the mechanical proper-ties of composites without deteriorating thermal stability. The maximum improvements for the yield strength and tensile strength of sOMWNT/PC composites are 12.9% and 12.8%, respectively. The dynamic mechanical property of sOMWNT/PC composites show that the storage modulus increases with increasing sOMWNT content and the glass transition temperature exhibites an opposite trend.

关 键 词：短多壁碳纳米管 聚碳酸酯 复合材料 热稳定性 力学性能 

分 类 号：TB332[一般工业技术—材料科学与工程]