熔融浸渍法制备PE-HD/黄麻纤维复合材料工艺及性能研究  

Study on Processing Conditions and Properties of Long Jute Fibers Reinforced High Density Polyethylene Composites Prepared by Melt Impregnation Process

作　　者：龙洪生 薛平[1] 丁筠[1] 贾明印[1] 周翔[1] 颜克福 

机构地区：[1]北京化工大学塑料机械及塑料工程研究所,北京100029

出　　处：《中国塑料》2015年第6期24-27,共4页China Plastics

基　　金："十二五"国家科技支撑计划项目(2012BAD23B0203)

摘　　要：采用特殊设计的天然纤维熔融浸渍模具制备黄麻长纤维颗粒,通过注塑工艺,制备了长黄麻纤维增强高密度聚乙烯(PE-HD)复合材料。研究了纤维含量、浸渍模具温度对PE-HD/黄麻纤维复合材料力学性能、微观断面形貌的影响。结果表明,利用熔融浸渍工艺制备PE-HD/黄麻纤维复合材料,有效地保障了黄麻纤维的长度,可显著提高复合材料的力学性能;当黄麻纤维含量为45%,浸渍模具温度为210℃时,PE-HD/黄麻纤维复合材料的拉伸强度和弯曲强度最优,相对纯PE-HD分别提高了49.1%和137%。A device for thermoplastics melt impregnation of nature fibers was developed.Long jute fibers reinforced high density polyethylene was prepared by the mold impregnation process.Effects of fiber content and impregnation temperature on mechanical properties and microstructure of the composite were studied.When the loading of jute fibers was 45%and impregnation temperature was 210℃,the tensile strength was increased by 49.1%and the flexural strength was increased by 137%.

关 键 词：高密度聚乙烯 黄麻纤维 熔融浸渍 复合材料 

分 类 号：TQ327[化学工程—合成树脂塑料工业] TB332[一般工业技术—材料科学与工程]