日本落叶松AS-AQ浆和KP浆的漂白特性比较  

Comparison of the characteristics of alkaline-anthraquinone pulp and kraft pulp of Japanese larch

作　　者：王军辉[1] 张守攻[1] 石淑兰[2] 胡惠仁[2] 张宋智 

机构地区：[1]中国林业科学研究院林业研究所国家林业局林木培育重点实验室 [2]天津科技大学材料科学与化学工程学院 [3]甘肃小陇山林业科学研究所

出　　处：《北京林业大学学报》2006年第1期93-97,共5页Journal of Beijing Forestry University

基　　金："十五"国家科技攻关子课题(2004BA515B0401);"863"国家高新技术项目(2001AA244061).

摘　　要：为深入了解日本落叶松的纸浆物理性能,该文以日本落叶松ASAQ浆为原料,对纸浆的漂白特性进行了系统研究,并与KP浆的漂白特性进行了比较.研究结果表明:在常规CEH三段漂白中,最佳有效氯用量为8%,NaOH用量为2.5%,漂白纸浆的白度可达到73%(ISO).在CDEHD漂白中,最佳有效氯用量为9%,EH段NaOH的合理用量为2%,纸浆白度能够达到79%(ISO).在DCE1D1E2D2和DE1D1E2D2漂白中,当总有效氯用量为7.9%时,两种漂白流程都能将纸浆漂到83%(ISO)的高白度.采用过氧化氢加强氧漂再加两段过氧化氢漂白的漂白流程(即OPQP1P2)可以将白度为27%(ISO)的纸浆漂到76%(ISO).无论是漂白浆还是未漂浆,ASAQ浆的聚合度都在KP浆之上.This paper systematically investigated bleaching properties of AS-AQ pulp of Japanese larch and compared the differences between AS-AQ pulp and KP pulp in order to understand physical properties of Japanese larch pulp. The results show that the whiteness of bleaching pulp can reach 73% （ISO） after three stage bleaching of general CEH, where the most effective dosages of chlorine and NaOH are 8 % and 2.5 % respectively. The whiteness of pulp can reach 79% （ISO） after the bleaching of CDEH D when the most effective dosage of chlorine is 9% and a reasonable dosage of NaOH on EH stage 2%. Both bleaching procedures can reach 83% （ISO） with the total effective dosage of chlorine 7.9% after bleaching with D/CE1D1E2D2 and DE1 D1 E2 D2. The whiteness of pulp can reach 76 % （ISO） from 27 % by a procedure of oxygen bleaching with enhanced H2O2 and bleaching with two stage H2O2 （OPQP1P2）. The degree of polymerization of AS-AQ pulp, whether unbleached or bleached pulp, is higher than that of KP pulp.

关 键 词：日本落叶松 AS-AQ浆 KP浆 漂白 

分 类 号：TS721.1[轻工技术与工程—制浆造纸工程]