含氯化钠的聚乙烯醇凝胶纺丝纤维性能研究

Research on the Properties of Gel-spinning Fiber of Poly Containing NaCl

在聚乙烯醇(PVA)溶液中添加NaCl后,可引起PVA溶液性质和溶液成纤后纤维取向度、力学性能的变化。分析NaCl的加入和NaCl含量的变化对PVA凝胶溶液的影响,并通过凝胶纺丝法制得了不同含量NaCl的PVA/NaCl纤维,对其进行表征。测试表明,在相同的拉伸倍数下,当PVA/NaCl中NaCl含量在3%时,纤维具有较高的强度。

The addition of NaCI in the PVA solution may lead to changes in the nature of PVA solution and the fiber orientation degree and mechanical properties after PVA solution into fiber. The influence of the addition of NaCl and the change of NaClcontent on PVA gel - spinning is analyzed in this article. And the viscosity of PVA/NaCl solution with different NaCl content is discussed as well. The test shows that the fiber has higher strength with the same spinning draft when the NaCl content in the PVA/NaCl is 3%.