Dry-wet spinning of PVA fiber with high strength and high Young's modulus

摘要

In this report, polyvinyl alcohol (PVA) fibers with high strength and high Young's modulus were prepared by dry-wet spinning, and they were characterized by FT-IR, XRD, TGA and XQ-1A yarn strength tester. The XRD measurement showed that PVA fiber had a single crystal type. The TGA results indicated the heat resistance of PVA fiber was better than that of PVA. The average tensile strength and Young's modulus of PVA fibers were 1.73 GPa and 40.02 GPa, respectively, their strength were high enough to meet the requirements for the use of civil and architectural.