中国塑料

中国塑料 ›› 2008, Vol. 22 ›› Issue (06): 62-66 .DOI: 10.19491/j.issn.1001-9278.2008.06.014

• 加工与应用 • 上一篇    下一篇

剪切强度对PA6 /CaCl2复合材料结构与性能的影响

于杰，钱志军,洪升,何敏,鲁圣军   

  1. 1.贵州大学材料科学与冶金工程学院，贵州贵阳550003; 2.国家复合改性聚合物材料工程技术研究中心，贵州贵阳550014
  • 收稿日期:2008-03-20 修回日期:1900-01-01 出版日期:2008-06-25 发布日期:2008-06-25

Effect of Shear Intensity on Structure and Properties of PA6/CaCl2 Composites

YU Jie，QIAN Zhi-jun，HONG Sheng，HE Min，LU Sheng-jun   

  1. 1.College of Materials Scicnec and Metallurgy Engineering, GuiZhou University, GuiYang 550003，China;2. National Engineering Research Center for Compounding and Modification of Polymeric Materials, GuiYang 550014，China
  • Received:2008-03-20 Revised:1900-01-01 Online:2008-06-25 Published:2008-06-25
  • Contact: QIAN Zhi-jun

摘要： 采用熔融挤出的力一法，制备了PA6/CaCl2复合材料，研究了螺杆剪切强度对PA6/CaCl2复合材料的结晶过程和性能的影响。实验结果表明:随剪切强度的增大，CaCl2与PA6的络合反应程度越大，PA6/CaCl2复合材料的结晶度越小，结晶不完善程度越大，复合材料的黏度越大，熔体流动速率越小。复合材料的拉伸强度、冲击强度随剪切强度的变化存在极值现象，这与剪切强度对复合材料结晶度和络合反应的影响规律及其综合效应有关，低于某一临界剪切强度时，结晶度变化的影响占主导地位，超过这一临界剪切强度后，络合反应的变化影响占主导地位，导致复合材料相应性能随剪切强度的变化而改变。

关键词: 聚胺6, 氯化钙, 剪切强度, 结钩, 性能

Abstract: The research focused on the effect of shear intensity on the crystallization process and the properties of the PA6/CaCl2 composites which were prepared through melting extrusion. With increasing shear intensity, the complex degree between PA6 and CaClz2 increased，the degree of crystallinity of PA6 decreased，the crystalline became more imperfect;the viscosity of PA6/CaCl2 melt increased.As the shear intensity increased，tensile strength and Izod impact strength of PA6/CaCl2 composites cxhibited a maximum, which could be related to the degree of both crystallinity and complex. When the shear intensity was below a certain critical value, the effect of degree of crystallinity was dominant，other wise, the effect of the complex reaction was dominant.

Key words: polyamidc 6, calcium chloride, shear intensity, structure, property

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