Study on Recycling of High Wet-strength Paper with Hydrogen Peroxide

摘要：

The recycling properties of high wet-strength paper (HWP)were discussed in this study.In the preliminary experiments,general acid,alkali,and mechanical methods couldnt obtain satisfactory results.Then sodium hypochlorite,potash permanganate and hydrogen peroxide were employed,among which the environmentally friendly hydrogen peroxide was focused.The optimal recycling method was obtained as follows: pretreating the HWP with NaOH for about 1h in 70℃ water,with the pH value around 11; then 2％ H2O2 (w/w)and supplemental NaOH to get the pH value around 11were added and continuously reacted for about 1h in 70℃ water.The treated HWP suspension was finally defibrized with a standard method to get accepts.Such treatment produced pulp yield as high as up to 95％,and the recycled fiber reserved good strength properties after sheet forming.

关键词： high wet-strength paper recycling hydrogen peroxide

作者: ZHENG JIAJUN CHEN GANG AN QIAOZHI

作者单位: State Key Lab of Pulp & Paper Engineering,South China University of Technology,Guangzhou,510640,China

会议类型: 国际会议

会议名称: 第二届国际造纸与环境学术会议(The Second International Papermaking & Environment Conference)

会议地点: 天津

会议语种:英文

页码: 493-496

在线出版日期: 2008-05-14（万方平台首次上网日期，不代表论文的发表时间）