竹粉/PVC发泡复合材料的制备与性能研究  

Preparation and Properties of Bamboo/PVC Foamed Composites

作　　者：龚新怀[1] 雷鹏飞[1] 赵升云[1] 陈良壁[1] 

机构地区：[1]武夷学院生态与资源工程学院,福建武夷山354300

出　　处：《现代塑料加工应用》2014年第5期16-19,共4页Modern Plastics Processing and Applications

基　　金：福建省科技厅重点项目(2012N0027);福建省大学生创新创业训练计划项目(201410397033);武夷学院校科研项目(XL1209)

摘　　要：采用模压法制备了竹粉/聚氯乙烯(PVC)发泡复合材料,研究了邻苯二甲酸二辛酯(DOP)、发泡剂偶氮二甲酰胺(AC)、竹粉、成核剂及成型压力对复合材料密度和力学性能的影响。结果表明:添加DOP使复合材料密度和拉伸强度下降,断裂伸长率快速增大;AC发泡剂用量增加,复合材料密度减小;竹粉用量增加,复合材料密度增加,力学性能变差;纳米二氧化钛和轻质碳酸钙的添加能有效改善复合材料的性能,其最佳用量为2份;复合材料最佳成型压力为6 MPa。Bamboo/polyvinyl chloride（PVC）foamed composites were prepared by compression molding,the effects of DOP,AC foaming agent dosage,bamboo flour,nucleation agents and molding pressure on the density and mechanical properties of the composites were studied.The results show that the density and tensile strength of the foaming composites decrease,and elongation at break is improved with the addition of DOP.When AC foaming agent dosage increases,the density of the foaming composites decreases.The density increases and the mechanical properties decreases with the dosage of bamboo flour increasing.Titanic oxide and light calcium carbonate can effectively improve properties of the foaming composites,and the optimum amount is 2phr.The properties of the foamed composites show best when the molding pressure is 6 MPa.

关 键 词：竹粉 聚氯乙烯 发泡复合材料 力学性能 

分 类 号：TQ328[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]