胶原蛋白/PVA/碳纳米管复合纤维的结构与性能

在胶原蛋白与聚乙烯醇(PVA)复合后的溶液中加入少量质量分数为0.05%~0.25%的碳纳米管,通过湿法纺丝制得PVA/胶原蛋白/碳纳米管复合纤维,研究了复合纤维的结构和性能。结果表明:碳纳米管与PVA和胶原蛋白有较好的相容性,在复合纤维中分散比较均匀。添加质量分数为0.25%碳纳米管时,复合纤维结晶度提高了37.62%,水中软化点提高了5℃,回潮率从11.50%下降到10.83%;加入质量分数为0.05%的碳纳米管时,复合纤维的断裂强度提高57.07%。

Structure and properties of collagen/PVA/carbon nanotubes composite fibers

Polyvinyl alcohol (PVA)/collagen/carbon nanotubes composite fiber was prepared from the composite solution of collagen and PVA incorporated with 0.05% -0.25% carbon nanotubes by mass fraction via wet spinning process.The structure and properties of the composite fiber were studied.The results showed that the carbon nanotubes had a fairly good compatibility with PVA and collagen and a uniform dispersion in the composite fiber.The crystallinity of the composite fiber was increased by 37.62% and the softening point in water by 5℃ and the moisture regain was decreased from 11.50% to 10.83% as the carbon nanotubes content was 0.25% by mass fraction.The breaking strength was increased by 57.07% as the carbon nanotubes content was 0.05% by mass fraction.