耐水解PLA/PBS/滑石粉复合材料的制备及性能  

Preparation and Properties of Hydrolysis Resistant PLA/PBS/Talc Powder Composites

作　　者：孙闯闯 丁建萍 魏志和 于培静 崔超凡 杨帆 Sun Chuangchuang;Ding Jianping;Wei Zhihe;Yu Peijing;Cui Chaofan;Yang Fan(Xinjiang Lanshan Tunhe Science and Technology Co.,Ltd.,Changji,Xinjiang,831100;Jiangsu Jicui Advanced Polymer Materials Research Institute Co.,Ltd.,Nanjing,Jiangsu,211106)

机构地区：[1]新疆蓝山屯河科技股份有限公司,新疆昌吉831100 [2]江苏集萃先进高分子材料研究所有限公司,江苏南京211106

出　　处：《现代塑料加工应用》2024年第2期33-36,共4页Modern Plastics Processing and Applications

摘　　要：制备了不同质量分数双(2,6-二异丙基苯)碳化二亚胺(Carbo D)的聚乳酸(PLA)/聚丁二酸丁二醇酯(PBS)/滑石粉复合材料。通过力学性能测试、端羧基滴定测试、傅里叶变换红外光谱分析、差示扫描量热分析以及水解老化测试研究了复合材料的水解稳定性。结果表明:Carbo D的加入可以明显提高PLA/PBS/滑石粉复合材料的耐水解性能,当Carbo D质量分数为1.0%时,复合材料综合性能最好,拉伸强度45.68 MPa,冲击强度5.54 kJ/m^(2),在85℃、85%湿度条件下,经48 h水解老化后复合材料拉伸强度仍达到31.62 MPa,仅下降了30.78%。Polylactic acid(PLA)/polybutylene succinate(PBS)/talc powder composites with different mass fractions of bis(2,6-diisopropylphenyl)carbodiimide(Carbo D)were prepared.The hydrolytic stability of PLA/PBS/talc powder composites was studied through mechanical properties test,terminal carboxyl titration test,Fourier infrared spectroscopy,differential scanning calorimetry and hydrolytic aging test.The results show that the addition of Carbo D can significantly improve the hydrolysis resistance of PLA/PBS/talc powder composites.When the mass fraction of Carbo D is 1.0%,the composite material has the best comprehensive performance,with a tensile strength of 45.68 MPa and an impact strength of 5.54 kJ/m^(2).At 85℃and 85%humidity conditions,the tensile strength still reached 31.62 MPa after 48 h hydrolysis aging,which only decreased by 30.78%.

关 键 词：双(2 6-二异丙基苯)碳化二亚胺 聚乳酸 聚对苯二甲酸丁二醇酯 水解老化 

分 类 号：TB332[一般工业技术—材料科学与工程]