纤维素科学与技术2012，Vol.20Issue(1)：45-51,7.
海藻酸钠TEMPO改性及其在造纸中的应用初探
Preliminary Study on TEMPO Oxidation of Sodium Alginate and Its Application on Wet-end of Paper
摘要
Abstract
Calcium ions play an important role in achieving closing white water circuit.Higher carboxyl content sodium alginate modified by 2,2,6,6-tetramethyl piperidine-1-oxyl radical（TEMPO） oxidation which could be used in wet-end was able to control the compact of calcium ions.Through the determination of carboxyl contents and chelate values of sodium alginate modified by TEMPO oxidation,the affect from dosage of NaClO,pH value and temperature to the oxidation process was researched.Three kinds of sodium alginate which contained different amounts of carboxyl groups（2.14%,3.61% and 1.96%） were selected for further use on wet-end of papermaking through capturing calcium ions.Results showed that both modified and unmodified sodium alginate could improve drainage/retention abilities of pulp and strength of paper sheets.Meanwhile,the most appropriate amount of sodium alginate was 0.02% and the sodium alginate which contained 3.61% of carboxyl group had the best affection among the three kind of sodium alginate.关键词
海藻酸钠/TEMPO氧化/钙离子/造纸湿部/纸张强度Key words
sodium alginate/TEMPO oxidation/calcium ion/wet-end of paper/strength of paper sheets分类
轻工纺织引用本文复制引用
张玉娟,戴红旗,袁广翔,房凯..海藻酸钠TEMPO改性及其在造纸中的应用初探[J].纤维素科学与技术,2012,20(1):45-51,7.基金项目
国家自然科学基金项目 （）
江苏高校优势学科建设工程资助项目 （）
