| 摘要 |
<p>A novel polyvinyl alcohol fiber is provided, which is made of a polyvinyl alcohol with a polymerization degree ranging from 1,500 to 7,000 and exhibits a tensile strength of 15 g/d (1.61 GPa) or more, initial elastic modulus of 259 g/d (26.8 GPa) or more, hot water resistance of 140 DEG C or higher, and abrasion resistance of 200 or more. A novel process for the preparation of a polyvinyl alcohol fiber is also provided, which comprises heat-stretching at a rate ranging from 10 m/min. to 100 m/min. a fiber made of a polyvinyl alochol having a polymerization degree ranging from 1,500 to 7,000 to which a dehydration reaction-accelerating catalyst is applied.</p> |
