Journal of South China University of Technology(Natural Science Edition) ›› 2011, Vol. 39 ›› Issue (11): 12-16,21.

• Chemistry,Chemical & Energy Engineering • Previous Articles     Next Articles

Mechanism of Fiber Swelling and Dissolving During Production of Vulcanized Paper

Chen Gang  Wu Yan-liang   

  1. School of Light Industry and Food Sciences,South China University of Technology,Guangzhou 510640,Guangdong,China
  • Received:2011-04-07 Revised:2011-06-23 Online:2011-11-25 Published:2011-10-03
  • Contact: 陈港(1967-) ，男，教授，主要从事特种纸与功能纸制品研究． E-mail:papercg@ scut.edu.cn
  • About author:陈港(1967-) ，男，教授，主要从事特种纸与功能纸制品研究．
  • Supported by:

    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)

PDF

1352

Abstract:

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 varying 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.

Key words: vulcanized paper, vulcanized paper, zinc chloride solution, cotton fiber, swelling, dissolution

CLC Number: