添加纳米碳酸钙对木粉／PVC复合材料的影响  

Effects of Nano Calcium Carbonate on Properties of Wood/PVC Composites

作　　者：赵永生[1,3] 孙泉 王克俭[3] 

机构地区：[1]北新集团建材股份有限公司,北京100096 [2]国家化学建材测试中心,北京100013 [3]北京化工大学机电学院,有机-无机复合材料国家重点实验室,北京100029

出　　处：《高分子材料科学与工程》2013年第2期66-69,共4页Polymer Materials Science & Engineering

基　　金：国家自然科学基金资助项目(51073021);教育部新世纪人才计划(NCET-10-0214);北京市优秀人才项目资助

摘　　要：在聚氯乙烯木塑(PVC/WF)体系中加入纳米碳酸钙(NCC),采用双螺杆挤出机熔融共混造粒制备了系列NCC/WF/PVC复合材料。测试力学性能和锥形量热计燃烧性能表明,在木粉未经表面偶联剂处理时添加NCC对复合材料力学性能改善效果不明显;而木粉经偶联处理后,木塑力学性能得到有效提高,因为木粉与PVC界面粘接性能得到明显改善;在木粉经表面处理的基础上添加适量纳米碳酸钙可进一步提高复合材料的力学性能,并且阻燃性能也得以有效提高。Nano-calcium carbonate（NCC） was mixed into polyvinylchloride （PVC）/wood flour （WF） composites using conical twin screw extruder to prepare NCC/WF/PVC composites. The effects of NCC contents on mechanical properties and flame retardancy of these composites were investigated by cone calorimetry. The results indicate that NCC is not helpful to improve the properties of the composites before WF was effectively treated by the surface-coupling agent. After the addition of the surface-coupling agent, the mechanical properties of the composites are improved due to the better interface-adhesion between wood flour and PVC. The flame resistance are also greatly improved.

关 键 词：聚氯乙烯木塑复合材料 纳米碳酸钙 阻燃性 

分 类 号：TB383[一般工业技术—材料科学与工程]