构木、杨木混合漂白化学机械浆制浆的特性及废液性质  

Characteristics of BCMP Pulping with Broussonetia papyrifera and Poplar Woodchips and Properties of Waste Liquid

作　　者：赵冠廷 侯庆喜[1] 刘苇[1] 杨顺 顾重喜 吴小双 ZHAO Guanting;HOU Qingxi;LIU Wei;YANG Shun;GU Chongxi;WU Xiaoshuang(Tianjin Key Laboratory of Pulp and Paper,College of Light Industry Science and Engineering,Tianjin University of Science&Technology,Tianjin 300457,China)

机构地区：[1]天津市制浆造纸重点实验室,天津科技大学轻工科学与工程学院,天津300457

出　　处：《天津科技大学学报》2020年第3期27-32,39,共7页Journal of Tianjin University of Science & Technology

摘　　要：采用构木与杨木为原料进行漂白化学机械浆(BCMP)制浆.分析了不同构木替代比例下,所得浆料、溶解与胶体物质(DCS)水样的性能变化.结果表明,随着构木替代比例的提高,所得浆料的松厚度、白度有所下降,但抗张强度上升;浆料纤维的重均长度与重均宽度均减小,而纤维粗度增大;DCS水样的固含量、电导率、阳离子需求量、COD也有所上升.所得浆料可适于抄造对白度和松厚度要求不太高的纸种.Broussonetia papyrifera and poplar were used as mixed raw materials to make bleached chemi-mechanical pulp(BCMP).The physical properties of BCMP obtained at different substitution percentages of Broussonetia papyrifera for poplar were determined,and the dissolved and colloidal substances(DCS)in pulping effluent were measured.The results showed that the bulk and brightness of the BCMP decreased with the increase of substitution percentage of Broussonetia papyrifera for poplar,while the tensile strength was increased.The weight-average fiber length and weight-average width were decreased,the fiber coarseness increased,and the solid content,conductivity,cationic demand and COD in pulping effluent increased with the increase of substitution of Broussonetia papyrifera in the raw materials.This BCMP is suitable for making some paper without high demand for brightness and bulk.

关 键 词：杨木 构木 BCMP 溶解及胶体物质 

分 类 号：TS74[轻工技术与工程—制浆造纸工程]