PLA/增塑剂/碳纳米管三元共混体系的结构与性能  

Structure and Properties of PLA/Plasticizer/Carbon Nanotube Three Component Blend System

作　　者：徐蒙蒙[1] 阳范文[1] 王晗[2] 陈新度[2] 田秀梅[1] 冼彩虹 欧阳效州 邓健能 李道斌 谢洪超 谢书云 XU Meng-meng YANG Fan-wen WANG Han CHEN Xin-du TIAN Xiu-mei XIAN Cai-hong OUYANG Xiao-zhou DENG Jian-neng LI Dao-bin XIE Hong-chao XIE Shu-yun(Biomedical Engineering Department, Guangzhou Medical University, Guangzhou 511436, Guangdong, China Mechanical and Electrical Engineering College of Guangdong University of Technology, Guangzhou 510006, Guangdong, China Guangzhou Haierma vegetable Oil Co. Ltd., Guangzhou 510430, Guangdong, China Shenzhen three in the Department of new materials Co., Ltd., Shenzhen 518110, Guangdong, China)

机构地区：[1]广州医科大学生物医学工程系,广东广州511436 [2]广东工业大学机电工程学院,广东广州510006 [3]广州市海珥玛植物油脂有限公司,广东广州510430 [4]深圳市三顺中科新材料有限公司,广东深圳518110

出　　处：《合成材料老化与应用》2017年第5期6-9,18,共5页Synthetic Materials Aging and Application

基　　金：2017年广东大学生科技创新培育专项资金(攀登计划专项资金);深圳三顺中科广医大联合研究项目"碳纳米管在塑胶领域的应用研究"

摘　　要：以PLA 4032D和CNTS-10为主材料,采用熔融共混制备PLA/增塑剂/碳纳米管三元共混物。研究HM-730、HM-830、HM-2050、PEG 8000、HM-828、HM-630六种增塑剂对共混物的流变性能、拉伸性能和热性能影响。结果表明:不同增塑剂共混体系的最大扭矩和平衡扭矩不同,最大扭矩HM-730较小、HM-630较大;平衡扭矩HM-2050最小、HM-630最大;增塑剂对PLA的断裂伸长率和拉伸强度影响较大,HM-630增塑效果最好,断裂伸长率超过20%、拉伸强度达49.5MPa;HM-630能抑制PLA的结晶,DSC曲线融峰面积最小,增韧效果最佳。Blends of PLA/CNTs-10/plastisizer were prepared by melt blending process. The effect of HM-730,HM-830,HM -2050,PEG 8000,HM -828,HM -630 plasticizer on the rheological properties,tensile properties and thermal properties were researched. The results showed that there were some difference in the max-imum torque and balance torque of PLA blends plastisized by different plasticizers. The maximum torque of the blend plastisized by HM-730 was low,while the HM-630 was high;the equilibrium torque of the blend plasti-sized by HM-2050 was smallest,while the HM-630 was maximum. At the same time,the effect of plastici-zers on elongation and tensile strength of blends were great,the blend plastisized by HM -630 was the best,＆amp;nbsp;which was characterized with the elongation at break over 20% and the tensile strength of 49. 5 MPa. The crys-tallization of PLA could be inhibited by HM-630,so the melt peak area of blend was smaller,the toughening effect was better.

关 键 词：PLA CNTS 流变性能 力学性能 

分 类 号：TB322[一般工业技术—材料科学与工程] TQ336.6[化学工程—橡胶工业]