PAN/HNTs纤维膜及聚烯烃复合材料的制备及表征  

Preparation and Characterization of PAN/HNTs Fiber Membrane and Polyolefin Composites

作　　者：杜青 何祎 余坦竟 蓝艳姣 周菊英 张霞 Du Qing;He Yi;Yu Tanjing;Lan Yanjiao;Zhou Juying;Zhang Xia(School of Chemistry and Chemical Engineering,Guangxi Minzu University,Nanning 530006,China;Key Laboratory of Chemistry and Engineering of Forest Products,State Ethnic Affairs Commission,Guangxi Key Laboratory of Chemistry and Engineering of Forest Products,Guangxi Collaborative Innovation Center for Chemistry and Engineering of Forest Products,Nanning 530006,China;Hainan gN Pearl Biotechnology Co.,Ltd,Haikou 570100,China)

机构地区：[1]广西民族大学,化学化工学院,南宁530006 [2]林产化学与工程国家民委重点实验室,广西林产化学与工程重点实验室/协同创新中心,南宁530006 [3]海南京润珍珠生物技术股份有限公司,海口570100

出　　处：《工程塑料应用》2022年第7期52-58,共7页Engineering Plastics Application

基　　金：国家自然科学基金项目(52063004)。

摘　　要：将埃洛石纳米管(HNTs)混入聚丙烯腈(PAN)溶液中,通过改变滚筒收卷速率并对纳米纤维膜进行热拉伸处理得到一系列混杂PAN/HNTs纤维膜。研究了混杂PAN/HNTs纤维膜的结晶形态转变与拉伸性能。将混杂PAN/HNTs纤维膜与热塑性聚烯烃弹性体(POE)制备成POE/PAN/HNTs复合材料(POE/PH),研究了各类混杂纳米纤维增强POE复合材料的拉伸性能,结果表明,收卷速率的增大会使拉伸强度和拉伸弹性模量增大、断裂伸长率减小;热牵引处理也会进一步提高复合材料的强度和弹性模量,进一步减小断裂伸长率。且随着PAN/HNTs纤维膜含量的增加,POE/PH复合材料的拉伸强度和拉伸弹性模量先增加后减小,纳米纤维膜质量分数约为6.7%时,复合材料的拉伸性能最佳。并通过断裂截面分析研究了其增强机理。A series of hybrid polyacrylonitrile(PAN)/halloysite nanotubes(HNTs)nanofiber membranes were obtained by mixing HNTs into PAN solution with the change of the winding rate and conducting subsequent thermal tensile treatment of nanofiber membranes.The crystal morphology and tensile strength of hybrid PAN/HNTs nanofiber membranes were studied.Polyolyaltha olfin(POE)/PAN/HNTs composites with various hybrid nanofibers were prepared.The tensile strength of composite materials were studied.The results show that the tensile strength and modulus increase and the elongation at break decrease with the increasing winding speed.Hot traction treatment further improves the strength and elastic modulus of the composite material and further reduces the elongation at break of composites.Moreover,with the increase of the content of nanofiber membrane,the tensile strength and elastic modulus of the composite increases firstly and then decreases.When the content of nanofiber membrane is about 6.7%,the tensile strength of the composite are the highest.And the strengthening mechanism was studied by fracture section analysis.

关 键 词：静电纺丝 混杂纳米纤维 收卷速率 热牵引 力学性能 

分 类 号：TB332[一般工业技术—材料科学与工程]