摘要
研究了钢纸生产过程中氯化锌溶液对棉纤维的润胀和溶解作用,以及这种作用对钢纸结构的影响.结果表明:纤维与氯化锌溶液接触后迅速发生润胀,润胀比为1.2～1.3,内部细纤维化严重的纤维润胀程度更高;纤维经氯化锌溶液处理后结晶指数由80.1%降低到76.5%,分子间氢键作用减弱,但纤维晶型并没有改变;发生强烈润胀和溶解的纤维紧密地结合在一起,产生了更多结合作用,使钢纸孔隙率大大降低,表面更为致密和均一.
The swelling and dissolving of cotton fibers in zinc chloride solution during the production of vulcanized paper were investigated and their influences on the structure of the prepared vulcanized paper were analyzed.The results show that cotton fibers swell as soon as they contact with zinc chloride solution,with the swelling ratio va-rying from 1.2 to 1.3,that the swelling ratio is higher when there exists severe internal fibrillation,and that,after the treatment with zinc chloride solution,the crystallization index of cotton fibers decreases from 80.1% to 76.5%,the intermolecular hydrogen bonds weaken,and the crystal form keeps unchanged.Moreover,it is found that the intense swelling and dissolving of fibers result in compact contact and more bonds,thus greatly decreasing the porosity and enhancing the compactness and uniformity of the vulcanized paper.
出处
《华南理工大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2011年第11期12-16,21,共6页
Journal of South China University of Technology(Natural Science Edition)
基金
国家"973"计划项目(2010CB732206)
教育部新世纪人才支持计划资助项目(D08001Ⅲ)
粤港关键领域重点突破项目(200849834)
关键词
钢纸
氯化锌溶液
棉纤维
润胀
溶解
vulcanized paper
vulcanized paper
zinc chloride solution
cotton fiber
swelling
dissolution
