高强度卡拉胶纤维的制备及性能测试  

Preparation and characterization of high strength carrageenan fibers

作　　者：付永强[1,2] 薛志欣[1,2] 夏延致[1,2] 王士财[2] 

机构地区：[1]青岛大学纤维新材料与现代纺织国家重点实验室培育基地,山东青岛266071 [2]青岛大学化学化工与环境学院,山东青岛266071

出　　处：《功能材料》2011年第B06期470-473,共4页Journal of Functional Materials

基　　金：国家自然科学青年基金资助项目(50803030);中国博士后科学基金47批面上二等资助项目(20100471495)

摘　　要：通过卡拉胶与环氧氯丙烷交联反应制得改性卡拉胶;并将改性卡拉胶溶于热水制得纺丝液,采用湿法纺丝制备高强度卡拉胶纤维。红外光谱测试及粘度提高证明交联反应的发生;用单因素实验法找到影响因素的最佳范围,通过正交实验法得到最佳合成条件为温度90℃、交联剂加入量为6.25%、反应时间2.0h、pH值为10.0;利用万能材料试验机测得纯卡拉胶纤维的断裂强度为2.17cN/tex,改性卡拉胶纤维的最大断裂强度为3.99cN/tex,交联后断裂强度提高85%。Modified carrageenan was prepared by carrageenan cross-linked with epoxy chloropropane. Then the modified carrageenan went through wet-spinning frame to get the high strength carrageenan fibers. The compo- sition of carrageenan and modified fibers were characterized by FT-IR. The viscosity was investigated by vis- cometer. The range of influencing factors was investigated by experiments of single factor. The optimum syn- thesis condition of the crosslinking was obtained by orthogonal experiments. The results showed that the reac- tion temperature was 90℃, the amount of crosslinking agent added was 6.25%, the reaction time was 2. Oh and the pH value was 10.0. The mechanical property of the modified/unmodified carrageenan fibers were investiga- ted with strength tester. The breaking strength of the former is 3.99cN/tex, compared with the latter 2.17cN/ tex.

关 键 词：制备 高强度 卡拉胶纤维 环氧氯丙烷 

分 类 号：TQ341.9[化学工程—化纤工业]