芯-壳结构对竹塑复合地板承载能力的影响  

Influence of Core-Shell Structure on the Carrying Capacity of Bamboo-Plastic Composite Floor

作　　者：张扬[1] 薛平[1] 张山雨 岳梦岩 

机构地区：[1]北京化工大学机电工程学院,北京100029

出　　处：《塑料》2016年第4期5-7,15,共4页Plastics

基　　金："十二五"国家科技支撑计划(2012BAD23B0203)

摘　　要：以芯-壳结构的竹粉/HDPE复合材料地板为研究对象,建立了复合地板的力学模型,并结合ANSYS模拟研究了芯-壳结构对复合地板整体力学性能的影响机理,通过实验比较了不同壳层材料复合地板的承载能力,从而对该机理进行验证。结果表明:芯-壳结构对地板整体力学性能的影响是芯层材料和壳层材料共同作用的结果;当壳层材料的厚度远小于芯层材料的厚度,且壳层材料的弹性模量高于芯层材料时,最大应力发生在壳层材料;高模量玻纤增强壳层材料对芯-壳结构竹塑复合材料地板整体的承载能力有一定提升。A bamboo powder/HDPE composite floor with core-shell structure was studied. The mechanical model was founded to analyze the stress state of the floor, the influence mechanism of core-shell structure on bamboo-plastic composite floor was studied through ANSYS simulation, and the carrying capacity of composite floor with different shell materials was compared through experiments to verify the mechanism. The results showed that the effect of core-shell structure on mechanical properties of composite floor was the result of interaction of core material and shell material. When the thickness of the shell material was much smaller than the thickness of the core material and the elastic modulus of shell material was larger, the shell material bore the maximum stress, high modulus glass fiber reinforced shell material could improve the overall carrying capacity of bamboo plastic composite floor with core-shell structure.

关 键 词：竹粉/HDPE复合材料 芯-壳结构 共挤技术 ANSYS 承载能力 

分 类 号：TQ325.12[化学工程—合成树脂塑料工业]