摘要
用橡胶木粉填充线性低密度聚乙烯(LLDPE),研究了酸、碱溶液预处理木粉的效果和硅烷偶联剂(KH 570)、MMA接枝的天然橡胶胶乳(MGL 30)两种改性剂对橡胶木粉表面改性的效果,以及木粉粒径和填充量等对木粉/LLDPE复合材料力学性能的影响,并用SEM对复合材料拉伸断面的形态结构进行了分析。结果表明:木粉的粒径、木粉填充量和改性剂用量对复合材料的力学性能有较大的影响,经碱溶液预处理再用改性剂改性后的木粉能有效地改善木粉与LLDPE的界面粘结强度,提高橡胶木粉/LLDPE复合材料的力学性能。
Alkali handled rubber wood-flour was modified by KH-570 and MGL-30. The effects of the particle size , filling content of the wood-flour and mass ratio of the modifiers to rubber wood-flour /LLDPE composites were studied. The morphology structure of the tensile section of the composite was analyzed by Scanning electron microscope. The results show that the particle size , filling content of the wood-flour and mass ratio of the modifiers influence the mechanical properties of composites markedly. The interfacial interaction between the modified wood-flour and LLDPE matrix is increased,the mechanical properties of composites are enhanced effectually.
出处
《功能高分子学报》
CAS
CSCD
2004年第3期487-492,共6页
Journal of Functional Polymers
基金
海南省教育厅科研基金(Hjkj200320)
中国热带农业科学院华南热带农业大学自然科学基金(Rykj0135)资助。
关键词
橡胶木粉
线性低密度聚乙烯
复合材料
结构
力学性能
热塑性塑料
linear low density polyethylene
rubber wood-flour
composites
morphology structure
mechanical properties
