中国造纸学报2024，Vol.39Issue(1)：27-37,11.DOI:10.11981/j.issn.1000-6842.2024.01.27
预浸渍溶出物对巨尾桉机械浆漂白性能的影响
Effects of Pre-impregnation Soluble Substrates on the Bleaching Performance of Eucalyptus urophylla×E.grandis Mechanical Pulp
摘要
Abstract
To study the effects of pre-impregnation on the bleaching performance of the pulp,Eucalyptus urophyllax E.grandis mechanical pulp was pre-impregnated via three types of pre-impregnation soluble substrates retention processes at three chemical dosages(NaOH 10 kg/t,NaOH 30 kg/t,NaOH 10 kg/t+H2O2 30 kg/t).The chemical structure of the three pre-impregnation soluble substrates were compared by el-emental analysis and pyrolysis-gas chromatography/mass spectrometry.The results showed that the bleaching performances of pre-impregnat-ed pulps using three processes all had a greater improvement than that of eucalyptus single-stage bleaching pulp.Pre-impregnated soluble substrates produced by pre-impregnation treatment with different chemical dosages could have a negative effect on the bleaching properties of pulps to varying degrees with different retention levels.There was a correlation between the degree of nitrogen dissolution from the pulp and the subsequent improvement of bleaching performance of the pulp.关键词
桉木机械浆/漂白/预浸渍/溶出物Key words
eucalyptus mechanical pulp/bleach/pre-impregnation/soluble substrates分类
轻工纺织引用本文复制引用
焦健,焦婷,王友成,邓拥军,朱北平,田庆文,韩善明,房桂干..预浸渍溶出物对巨尾桉机械浆漂白性能的影响[J].中国造纸学报,2024,39(1):27-37,11.基金项目
国家自然科学基金重大项目课题(31890771) （31890771）
江苏省生物质能源与材料重点实验室重点项目(JSBEM-S-202309) （JSBEM-S-202309）
泰山产业领军人才工程专项经费(tscy20200213). （tscy20200213）
