基于正交实验方法优化PP/PLA复合材料薄膜力学性能研究

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英文篇名：Mechanical Property Optimization of PP/PLA Hybrid Composite Film Based on Orthogonal Method 作者：姜茜 ; 裴鑫 ; 吴利伟 ; 林佳弘 ; 李婷婷 ; 彭浩凯 英文作者：JIANG Qian;PEI Xin;WU Liwei;LIN Jiahorng;LI Tingting;PENG Haokai;Innovation Platform of Intelligent and Energy-Saving Textiles,College of Textiles,Tianjin Polytechnic University;Key Laboratory of Advanced Textile Composite Materials,Tianjin Polytechnic University;Laboratory of Fiber Application and Manufacturing,Department of Fiber and Composite Materials,Feng Chia University; 关键词：PP/PLA杂化复合材料 ; 马来酸酐 ; 熔融共混 ; 正交实验 ; 力学性能 英文关键词：PP/PLA hybrid composite;;maleic anhydride(MAH);;melt-blending;;orthogonal optimization method;;mechanical property 中文刊名：CLDB 英文刊名：Materials Review 机构：天津工业大学纺织学院智慧纺织与节能制品创新平台;天津工业大学教育部与天津市共建先进复合材料重点实验室;逢甲大学纤维与复合材料学系纤维应用与制造实验室; 出版日期：2018-11-25 出版单位：材料导报 年：2018 期：v.32 基金：国家自然科学基金(11502163;11702187);; 天津市自然科学基金(17JCQNJC03000;16JCZDJC36600);; 2017年度天津市教委科研计划项目(2017ZD05) 语种：中文; 页：CLDB2018S2059 页数：4 CN：S2 ISSN：50-1078/TB 分类号：266-269

摘要

随着现代社会对多功能材料需求的增大,针对杂化复合材料的研究也不断深入。为了得到可生物降解的环保型杂化复合材料,本文将传统合成聚合物聚丙烯(Polypropylene,PP)和生物可降解材料聚乳酸(Polylactic acid,PLA)进行熔融共混,并加入马来酸酐(Maleic anhydride,MAH)进行增容,制备出PP/PLA杂化复合材料薄膜。将PP/PLA杂化复合材料薄膜力学性能作为评定标准设计正交实验,影响因素包括混合时间、马来酸酐添加量以及螺杆转速,每个因素设置三个水平。通过方差与极差分析得出马来酸酐添加量为最显著因素,并单独对其进行单因素分析,以确定最佳添加量。最终得出PP/PLA杂化复合材料薄膜最优工艺为混合时间8min,马来酸酐添加量0.8wt%,螺杆转速130r/min,此条件下其拉伸强度与弹性模量分别可达到25.08 MPa和1 288.74MPa,比未添加马来酸酐时分别提升了100%和140%。
        The hybrid composite has been intensively studied due to the increasing requirement of multifunctional composite.In order to obtain biodegradable hybrid composite,the synthesis polymer polypropylene(PP)and biodegradable polymer polylactic acid(PLA)were melt-blended,and maleic anhydride(MAH)was added as compatilizer in this study.The mechanical property was chosen as the evaluation standard for orthogonal optimization design.The factors are mixing time,MAH content and screw speed,and each factor has three levels.By means of analysis of variation and range analysis,the MAH content was proved to be the significant factor.And one factor analysis was conducted to find the optimal MAH content.The results show that the combination of 8min(mixing time),0.8wt%(MAH content)and 130r/min(screw speed)is the optimal parameter for the melt-blending of PP/PLA hybrid composite.The tensile strength and elastic modulus of obtained composite are 25.08 MPa and 1 288.74 MPa,separately,which are 100% and 140% higher than those without MAH.

引文

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