采用熔融插层法,通过双螺杆挤出机成功制备了尼龙6/蒙脱土插层复合材料,并分析了力学性能、吸水性能和耐热性能。研究结果表明复合材料的综合性能较普通尼龙6有很大的提高。当复合材料中蒙脱土含量为3%时,其弯曲强度、布氏硬度、屈服强度、弹性模量达到最优,较普通尼龙6分别提高了33.8%、23%、21.7%、12%,断裂伸长率及冲击强度则分别下降了28%和51.7%,吸水量下降了50%,热稳定性较普通尼龙6也有了很大提高。
The nylon6/montorillonite intercalate composite were successfully direactly prepared by means of melting intercalation in twin-screw extruder,and their thermal stability hydroscopic properties and mechanical properties were measured.The results showed that the comprehensive mechanical properties were more better than those of nylon 6.Especially,the flexural strength,Brinell hardness,yield strength,modulus of elasticity increased by 33.8%,23%,21.7%,12% seprately than those of PA6,while the breaking elongation and impact strength decreased by 28% and 51.7% respectively,when the content of MMT was 3%.The hydroscopic quality decreased by 50%,and thermal stability were also much better than those of nylon 6.
参考文献
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