文献类型：期刊文献

中文题名：回收塑料-木材纤维复合材料的工艺及性能

英文题名：Process factors and performances of recycled plastic-wood fiber composites.

作者：王正[1] 赵行志[2] 郭文静[1]

第一作者：王正

通信作者：Wang, Z.

机构：[1]中国林业科学研究院木材工业研究所;[2]北京林业大学材料科学与技术学院

年份：2005

卷号：27

期号：1

起止页码：1-5

中文期刊名：北京林业大学学报

外文期刊名：Journal of Beijing Forestry University

收录：CSTPCD;;EI(收录号：2005118999867);Scopus(收录号：2-s2.0-14744292498);北大核心:【北大核心2004】；CSCD:【CSCD2011_2012】；

基金："8 63"国家高新技术项目 (2 0 0 2AA2 45 14 1);中日合作JICA项目 .

语种：中文

中文关键词：回收塑料-木材纤维复合材料;木塑质量比;尺寸稳定性;工艺因子

外文关键词：Dimensional stability;Hot pressing;Physical properties;Polyethylenes;Polypropylenes;Polystyrenes;Recycling;Tensile strength

分类号：TS653.3

摘要：该文利用聚苯乙烯、聚乙烯和聚丙烯等 3种回收塑料与木材纤维复合制备复合材料 ,分析不同回收塑料种类、木材纤维与塑料不同质量比和热压温度等工艺条件对复合材料物理力学性能的影响 .结果表明 :3种回收塑料中回收聚苯乙烯塑料性能最好 ,回收聚丙烯塑料其次 ,回收聚乙烯塑料最差 .木塑质量比 5 0∶5 0效果最好 .塑料含量低时 ,内结合强度和拉伸强度低 ,吸水厚度膨胀率高 ;塑料含量过高时 ,静曲强度和弹性模量降低 .热压温度在1 90℃效果最好 .温度过低时 ,静曲强度、弹性模量、拉伸强度和内结合强度较差 ;温度过高时 ,木材纤维降解加剧 ,塑料少量溢出 ,性能反而有所下降 .通过极差和方差分析知 ,本研究F值的最佳工艺条件为 :采用回收聚苯乙烯、木塑质量比 5 0∶5 0、热压温度 1 90℃ .
The influence of the process factors on the physical properties of recycled wood-plastic composite panels was investigated. Three recycled plastics (polystyrene, polyethylene, and polypropylene) and poplar (Populus sp.) fiber were used as the main raw material, and the various process factors such as different kinds of plastics, the mixing ratio between the wood material and its plastic counterpart and hot-pressing temperature were examined. The results show that in terms of desirable properties, the preferential order of three plastics is polystyrene, polypropylene and in last place, polyethylene. The mixing ratio between wood and plastics has its best performance at 50/50 wood-plastics ratio. Properties of tensile strength and IB decrease when the wood-plastic ratio is lower and properties of MOR and MOE are weakened when it becomes higher. A hot-pressing temperature of 190°C is the best among three levels of temperature. MOR, MOE, tensile strength and IB decrease when temperatures are lower. At extremely high temperature the wood fiber material degrades drastically and starts to seep out. Based on both of the maximum difference analysis and the variance analysis, significance test shows the optimum conditions for recycled plastics/composites to be polystyrene, a wood-plastic ratio of 50/50 and a hot-pressing temperature of 190°C.