摘要
研究了不同的缩醛化浴配方以及缩醛化条件对胶原蛋白/PVA初生复合纤维中的蛋白质存留率、水中软化点(Rp)的影响,确定了较合适的缩醛化浴配方及缩醛化条件。结果表明,在65℃下缩醛化时间20 min,缩醛化浴中硫酸和甲醛用量分别为175 g/L,50 g/L时,所得复合纤维中蛋白质的存留率为91%,其水中软化点达到109.5℃,所得的复合纤维已能满足服用纤维的要求。
The acetalization parameters including acetalization time, acetalization temperature, amounts of sulfate and amounts of formaldehyde were investigated. Conditions of acetalization bath were optimized as follows： temperature 65 ℃, time 20 min, amounts of sulfate and formaldehyde were 175g/L, 50g/L respectively. And the obtained composite fiber was endowed with high content of protein （about 35%）,and its softening point reached 109. 5 ℃. It met with the requirements of fiber for textile.
出处
《皮革科学与工程》
CAS
2006年第5期17-20,24,共5页
Leather Science and Engineering
基金
高等学校博士学科点专项研究基金资助课题(项目编号:20030610036)
四川省应用基础研究项目资助课题(项目编号:03JY029-058-2)
关键词
胶原蛋白
PVA
缩醛化
水中软化点
collagen protein
poly vinyl alcohol
acetalization
softening point
