| abstract |
A kind of heat-resistance type PVA fiber, the PVA fiber contain structural formula M: With structural formula N: Wherein, R is indicated Q=2~8, m:n molar ratio are 0.5~8:15~30, and the molal quantity of n accounts for the 15~35% of the total molal quantity of PVA fiber.Single fiber 1.2~1.6dtex of line density under PVA fiber room temperature of the present invention, elongation at break 10~25%, the draw ratio of modulus 90~200cN/dtex, PVA fiber are 250~600.Resistance to 120~180 DEG C of the hot water temperature of PVA fiber, temperature tolerance with higher, dispersibility, mechanical strength are high. |