排序方式: 共有6条查询结果,搜索用时 0 毫秒
1
1.
皮胶原蛋白/PVA复合纤维的研制-提高初生纤维中蛋白质含量的研究 总被引:9,自引:0,他引:9
将皮胶原蛋白与PVA共混,添加交联剂和消泡剂配制纺丝原液,利用正交试验设计得到最佳的纺丝原液配方及反应条件,即反应温度为75℃,pH值3·5,PVA和胶原蛋白的物料比为6∶4,交联剂AlCl3添加量质量分数为3·0%,消泡剂磷酸三丁酯添加量质量分数1·0%。为了进一步提高初生纤维中蛋白质的存留率,通过改变凝固浴饱和硫酸钠溶液的温度和pH值,考察它们对初生纤维中蛋白质存留率的影响,结果表明:当在45℃下,凝固浴的pH值调到5·0时,得到初生纤维中蛋白质存留率最高,约为97·96%。 相似文献
2.
本文主要把腈纶湿法与杜邦干法纺丝在工艺过程、成形机理、工艺参数及纤维结构等方面进行比较,进而总结了两种纺丝方法的不同特点. 相似文献
3.
4.
对传统亚麻纺纱工艺进行改进,用优质亚麻原料和进口澳毛取代传统产品中的亚麻二粗纤维,混纺后的粗纱采用漂练、脱胶、除杂以提高亚麻纤维分裂度,并对前纺各道工艺参数严格控制以确保半成品质量.细纱工序采用湿纺细纱机,解决好原料的配比、粗纱漂练及细纱工序中的强度损失等关键技术问题,生产出性能优良的毛麻混纺高支纱. 相似文献
5.
6.
Cellulose furoates synthesized by a homogeneous reaction was used to make film and fiber. Either colorless or light yellow, transparent cellulose furoate film can be made by solvent cast. Cellulose furoate film with a DS of 2.56 and 20% PEG-400 as the plasticizer displayed 5441 psi maximum tenacity and 21.5% maximum strain. The film without plasticizer has a water vapor permeability of 0.124 ng · m/m2 · s · Pa. DMTA study identified the Tg of cellulose furoate with a DS of 2.77 was 225°C. As the DS decreased, the Tg shifted toward higher temperature. The success of wet-spun fibers from LiCl/DMAc solution of cellulose and cellulose furoate substantiated cellulose furoate is compatible with cellulose. Unfortunately, the wet-spun fibers lost their mechanical and surface properties, and bioresistant property against Myrothecium verrucaria, Cheatomium globosum, and Aspergillus terreus. © 2001 John Wiley & Sons, Inc. J Appl Polym Sci 82: 253–257, 2001 相似文献
1