摘要
为探究丙烯基弹性体(PBE)对聚乳酸(PLA)/PBE熔喷非织造材料的性能影响,以PBE共混改性PLA制备了PLA/PBE熔喷非织造材料,对其形貌结构、直径分布、力学性能、透气和过滤性能进行测试与表征。结果表明,随着PBE含量的增加,PLA/PBE熔喷非织造材料的平均直径呈现先减小后增大的趋势,最小平均直径是3.96μm,且直径分布区间变宽;相对于纯PLA熔喷非织造材料,PLA/PBE熔喷非织造材料的韧性以及强度都有了明显的增大,其中当PLA∶PBE质量比为80∶20时,PLA/PBE熔喷非织造材料的强度和断裂伸长率分别提高了25%和455%;熔喷材料的纤维直径和空隙率影响材料的过滤性能,直径和空隙率的减小可以使PLA/PBE熔喷非织造材料的过滤性能增强。
In order to explore the effect of propylene-based elastomer(PBE)on the properties of polylactic acid(PLA)/PBE melt-blown nonwovens,PBE/PLA melt-blown nonwovens were prepared by blending and modifying PLA with PBE.The morphology,diameter distribution,mechanical properties,air permeability and filtration properties were tested and characterized.The results show that with the increase of PBE content,the average diameter of PLA/PBE melt blown nonwovens decreases first and then increases,the minimμm average diameter is 3.96μm,and the diameter distribution interval is widened.Compared with pure PLA meltblown nonwovens,the toughness and strength of PLA/PBE meltblown nonwovens have been significantly increased.When the mass ratio of PLA∶PBE is 80∶20,the strength and elongation at break of PLA/PBE meltblown nonwovens are increased by 25%and 455%,respectively.The fiber diameter and porosity of the melt blown material affect the filtration performance of the material.The reduction of the diameter and porosity can enhance the filtration performance of the PLA/PBE melt blown nonwoven material.
作者
席立锋
周衡书
周忠成
张恒
孙焕惟
Xi Lifeng;Zhou Hengshu;Zhou Zhongcheng;Zhang Heng;Sun Huanwei(College of Textile and Clothing,Hunan Institute of Engineering,Xiangtan 411104,China;College of Textiles,Zhongyuan University of Technology,Zhengzhou 451191,China;Hunan Province New Fiber and Fabric Processing Engineering Technology Research Center,Xiangtan 411104,China;Henan Provincial Key Laboratory of Medical Polymer Materials Technology and Application Henan,Xinxiang 453400,China)
出处
《工程塑料应用》
CAS
CSCD
北大核心
2022年第3期32-37,共6页
Engineering Plastics Application
基金
湖南省重点领域研发计划项目(2019NK2071)
湖南工程学院研究生科技创新项目(YC2012)。
关键词
聚乳酸
熔喷材料
过滤性能
polylactic acid
melt-blown materials
filtering performance
