OMMT和CaCO_3对PA1010纳米复合材料体系力学性能和形貌的影响  

Effect of OMMT and Nano-CaCO_3 on Mechanical Properties and Morphology of PA1010 Nanocomposite Systems

作　　者：尹绚[1] 李迎春[1] 胡国胜[1] 

机构地区：[1]中北大学高分子与生物工程研究所,山西太原030051

出　　处：《塑料科技》2013年第12期38-41,共4页Plastics Science and Technology

基　　金：中北大学第十届研究生科技基金项目(20131025)

摘　　要：用有机蒙脱土(OMMT)和nano-CaCO3作为填充粒子与聚酰胺1010(PA1010)一起,通过双螺杆挤出机用熔融共混法制备两种体系的PA1010/OMMT/nano-CaCO3三元纳米复合材料,通过扫描电子显微镜(SEM)和力学性能测试研究了OMMT作用的PA1010/nano-CaCO3体系和nano-CaCO3作用的PA1010/OMMT体系。结果表明:OMMT/PA1010/nano-CaCO3中,OMMT与基体间的界面吸附力弱化了nano-CaCO3与基体的吸附力,使得OMMT在小含量添加范围内(<2份)体系韧性提高的同时,明显改善了拉伸强度和弯曲强度。而加入nano-CaCO3的nano-CaCO3/PA1010/OMMT,由于两种无机粒子之间对基体的作用处于一种相互抵消的平衡状态,使得体系韧性改变不明显。Polyamide 1010（PA1010）/OMMT/nano-CaCO3 ternary nanocomposites were prepared by taking OMMT and nano-CaCO3 as fillers through melt blending using twin-screw extruder. The influences of OMMT on PAl010/nano-CaCO3 and nano-CaCO3 on PA1010/OMMT were investigated by means of scanning electron microscope（SEM） and mechanical testing. The results show that： for OMMT/ PA1010/nano-CaCO3 system, the interfacial adherence between OMMT and matrix PAl010 weakens the adherence between nano-CaCO3 and PA1010, the toughness enhances with the addition of OMMT（less than 2 phr）, meanwhile the tensile strength and flexural strength significantly improve. However, for nano-CaCO3/PA1010/OMMT system, the interfacial adherences between OMMT, nano- CaCO3 and matrix PA1010 are in a offset balance, so the toughness of system improves slightly.

关 键 词：聚酰胺1010 纳米有机蒙脱土 纳米碳酸钙 力学性能 形貌 

分 类 号：TB383.1[一般工业技术—材料科学与工程]