中国造纸2026，Vol.45Issue(8)：162-170,9.DOI:10.11980/j.issn.0254-508X.2026.08.017
机械精浆处理对竹材化学热磨机械浆漂白和纸浆性能的影响研究
Study on Effects of Chemi-thermomechanical Refining on the Bleaching Performance and Pulp Properties of Bamboo CTMP
摘要
Abstract
Using bamboo chemi-thermomechanical pulp(CTMP)as raw material,the pulp was subjected to mechanical refining using a PFI refiner followed by alkaline H2O2 bleaching.This study investigated the effects of mechanical refining on the fiber morphology,wet-end chemi-cal properties,brightness,and papers'mechanical strength of unbleached and bleached pulp.The results indicated that the mechanical refin-ing promoted the subsequent pulp bleaching efficiency and improved the papers'strength properties.Compared with refined-unbleached pulp,the fiber length,drainability,and fines retention of refined-bleached pulp were worse,but the amount of colloidal charge and water re-tention value were higher.When the beating degree of pulp was increased from 15 ° SR to 50 ° SR,the fiber weighted-length of refined-un-bleached and refined-bleached pulp were decreased by 14.8%and 11.4%,the fines content were increased from 4.00%and 4.10%to 4.70%and 5.30%,respectively,and the papers'brightness of refined-bleached pulp was increased by about 6 percentage points compared with unrefined-bleactied pulp.At the beating degree of 50 °SR,the ten-sile index,bursting index,and initial wet tensile index of paper made of refined-bleached pulp increased by 22.4%,36.8%,and 3.0%,respective-ly,compared to that of paper made of refined-unbleached pulp.关键词
竹材化学热磨机械浆/精浆处理/碱性H2O2漂白/白度/机械强度Key words
bamboo chemi-thermomechanical pulp/refining/alkaline hydrogen peroxide bleaching/brightness/mechanical strength分类
轻工纺织引用本文复制引用
贾甜甜,赖俊杰,李晋,黄方,吴珽,谢章红,黄六莲,苗庆显..机械精浆处理对竹材化学热磨机械浆漂白和纸浆性能的影响研究[J].中国造纸,2026,45(8):162-170,9.基金项目
国家重点研发计划项目(2023YFD2201902) （2023YFD2201902）
宜宾市竹产业重大攻关项目(YBZD202401). （YBZD202401）
