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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。
Two systems of PA1010 / OMMT / nano-CaCO3 ternary nanocomposites were prepared by melt blending with OMMT and nano-CaCO3 as polyamide 1010 (PA1010) using a twin-screw extruder The PA1010 / nano-CaCO3 system and the PA1010 / OMMT system using nano-CaCO3 were investigated by scanning electron microscopy (SEM) and mechanical testing. The results show that the interfacial adsorption between OMMT and matrix weakens the adsorption capacity of nano-CaCO3 to the matrix in OMMT / PA1010 / nano-CaCO3, which makes OMMT improve the toughness of the system in the range of less than 2, Significantly improved tensile strength and flexural strength. The addition of nano-CaCO3 nano-CaCO3 / PA1010 / OMMT, due to the role of the two inorganic particles on the substrate in a counterattack equilibrium, making the system toughness change is not obvious.