玄武岩/苎麻增强聚乳酸复合材料的拉伸性能研究  

Study on Tensile Properties of Basalt/Ramie Fabric Reinforced Polylactic Acid Composites

作　　者：谭冬宜[1] 杨邵蓉 曾双穗 邝小菊 岳妍 TAN Dongyi;YANG Shaorong;ZENG Shuangsui;KUANG Xiaoju;YUE Yan(College of Textile and Fashion,Hunan Institute of Engineering,Xiangtan 411104,China;Shaoxing Fangyuan Testing Technology Co.,Ltd,Shaoxing 312080,China)

机构地区：[1]湖南工程学院纺织服装学院,湘潭411104 [2]绍兴方圆检测科技有限公司,绍兴312080

出　　处：《湖南工程学院学报（自然科学版）》2023年第2期62-66,共5页Journal of Hunan Institute of Engineering(Natural Science Edition)

基　　金：湖南省教育厅优秀青年项目(20B135);湖南省科技创新计划资助项目(2021RC1011);湖南工程学院大学生创新创业训练计划项目(校教字〔2021〕21号-33).

摘　　要：玄武岩纤维是一种可自然降解的高性能纤维.苎麻纤维作为一种天然纤维,其来源广泛、再生能力强、成本低.以玄武岩织物、苎麻织物为增强体,以聚乳酸作为基体,通过模压成型工艺制备了混杂复合材料,探讨了热压时间、聚乳酸含量、铺层方式对混杂复合材料拉伸性能的影响.结果表明:随着热压时间的增加,非对称铺层R/B复合材料的拉伸性能先增后减,当热压时间为25 min、聚乳酸含量为70%时,混杂复合材料的拉伸性能最佳;苎麻织物处于芯层的B/R/B复合材料的断裂强力、断裂伸长率均高于玄武岩织物处于芯层的R/B/R复合材料,因此在制备混杂复合材料时宜将强力弱的材料铺在芯层.Basalt fiber is a high-performance fiber with natural degradation.As a natural fiber,ramie fiber has a wide range of sources,strong regeneration capacity and low cost.With basalt fabric and ramie fabric as reinforcements,and poly-lactic acid as substrates,mixed composite materials are prepared by compression moulding process and then the influence of thermal pressure time,poly-lactic acid content and laminating mode on the tensile properties are discussed.The results show that with the increase of thermal pressure time,the tensile performance of R/B composite increases and then decreases.When the thermal pressure time is 25min and the poly-lactic acid content is 70%,the tensile performance is the best.The B/R/B composite material,while ramie fabric is in the core layer,is higher than the R/B/R composite material while the basalt fabric is in the core layer.Therefore,it is appropriate to lay the weak material in the core layer when preparing the mixed composites.

关 键 词：玄武岩织物 苎麻织物 聚乳酸 铺层方式 

分 类 号：TB332[一般工业技术—材料科学与工程]