摘要
比较了硅烷偶联剂处理、氢氧化钠溶液浸泡与硅烷偶联剂双重处理,接枝改性等3种木纤维表面处理方法对木纤维/PVC复合材料界面及性能的影响,通过扫描电镜照片发现接枝改性木纤维在PVC基体中分散更均匀,与PVC界面相容性好。接枝改性木纤维/PVC复合材料的拉伸强度、冲击强度、断裂伸长率等力学性能有明显提高。最后分析了木纤维接枝改性处理时引发剂用量对复合材料力学性能的影响。
By comparing of different treating methods of wood- fiber： treated with silane coupling agent, NaOH solution and silane eoupling agent, grafted by poly （methyl methaerylate）, it can be found that grafted wood - fiber evenly distributed in PVC matrix. Grafted wood- fiber and PVC matrix had a better interracial compatibility than that of the ungrafted wood fibers, which was verified by soannlng electron microscope observation. The tensile, bending, and impact strength of grafted modified wood- fibedPVC composite were improved signi.fieantly compared to other treatments（treated with silane coupling agent, NaOH solution and silane coupling agent）. Effect of content of initiator on mechanical properties of the eomposltes was studied.
出处
《当代化工》
CAS
2007年第4期438-442,共5页
Contemporary Chemical Industry
关键词
复合材料
聚氯乙烯
木纤维
接枝改性
界面
力学性能
composite
PVC
wood- fiber
grafting modi：fieation
interface
mechanical properties
