论文部分内容阅读
利用拉伸流变为主的叶片挤出机制备PA6/硫酸钙晶须(CSW)复合材料,研究了CSW的质量分数对复合材料微观形貌、热学性能、流变性能和力学性能的影响。结果表明:CSW在PA6基体中能较好分散并较完善地保持其长径比;CSW质量分数为5%~10%时,复合体系的剪切黏度最大;差示扫描分析和广角X射线衍射表明:CSW质量分数的增加引起PA6的结晶变化,但对PA6的熔融行为影响很小;力学测试结果表明:随着CSW质量分数的提高,体系的拉伸强度、弯曲强度均有不同程度的提高,而冲击强度则有一定程度的降低。
The effect of mass fraction of CSW on the microstructure, thermal properties, rheological properties and mechanical properties of PA6 / CSC whiskers was investigated by means of extensional rheological laminator. The results show that CSW can well disperse in PA6 matrix and maintain its aspect ratio well. When the mass fraction of CSW is 5% ~ 10%, the shear viscosity of the composites is the highest. The results of differential scanning and wide angle X-ray diffraction The results show that the increase of mass fraction of CSW causes the crystallization of PA6, but it has little influence on the melting behavior of PA6. The mechanical test results show that the tensile strength and flexural strength of CS6 increase with the increase of mass fraction of CSW , While the impact strength is reduced to some extent.