中国造纸2023，Vol.42Issue(11)：46-51,6.DOI:10.11980/j.issn.0254-508X.2023.11.006
纸浆纤维种类和性质对其凝胶点浓度的响应关系研究
Study on the Response Relationship Between the Types and Characteristics of Pulp Fibers and Their Gel Point Concentrations
摘要
Abstract
The settlement of three pulp fibers(bleached softwood pulp,bleached bamboo pulp and bleached bagasse pulp)was compared to analyze the effects of fiber types and characteristics on the gel point concentration(Cg),further to provide the key information of fiber net-work during the dewatering of pulp fiber suspension.The results showed that there was a negative relationship between the Canadian Stan-dard Freeness(CSF)and the Cg.With the increase of fiber water retention value(WRV),the Cg increased,and the effect of WRV on the Cg was affected by fiber type.With the increase of fiber length-weighted length(L),the Cg decreased.When the L increased to 1.2 mm,the Cg basically remained unchanged.The change of Cg at a high aspect ratio(＞20)could be well explained by the crowding number theory or the effective medium theory.However,both theories cannot directly explain the change of Cg at a lower aspect ratio,and non-physical parame-ters(such as surface charge)of fibers needed to be considered.关键词
凝胶点浓度/加拿大标准游离度/保水值/拥挤数理论Key words
gel point concentration/Canadian Standard Freeness/water retention value/crowding number theory分类
轻工纺织引用本文复制引用
陈俊忠,王超,左华伟,何广德,张文晖,赵涛,张雪,张红杰..纸浆纤维种类和性质对其凝胶点浓度的响应关系研究[J].中国造纸,2023,42(11):46-51,6.基金项目
国家自然科学基金项目(32171727、32001276). （32171727、32001276）
