慈竹CTMP制浆工艺及漂白性能研究  

Study on the Pulping Technology and Bleachability of a Bamboo Chemimechanical Pulp

作　　者：梁芳敏[1,2,3,4] 沈葵忠[1,2,3,4] 房桂干[1,2,3,4] 高桂林[1,2,3,4] 邓拥军[1,2,3,4] 郭文亮[1,2,3,4] 李萍[1,2,3,4] 

机构地区：[1]中国林业科学研究院林产化学工业研究所 [2]江苏省生物质能源与材料重点实验室 [3]生物质化学利用国家工程实验室 [4]国家林业局林产化学工程重点开放性实验室,江苏南京210042

出　　处：《造纸科学与技术》2013年第3期1-5,共5页Paper Science & Technology

基　　金："十二五"国家科技支撑计划资助项目(2012BAD23B02)

摘　　要：竹材化机浆实现工业化生产存在能耗高、漂白白度低、强度性能差的技术障碍。本论文研究表明,碱性过氧化氢预处理是一种较好的化学预处理方式。1.5%NaOH和2%H2O2用量的碱性H2O2预处理条件下,经10%H2O2漂白,可以获得26%ISO的白度增值,比碱性预处理和碱性亚钠预处理制得的化机浆白度增值高出4个白度单位;不同预处理方法浆料的强度性能存在较大差异,碱性过氧化氢预处理制得浆料的抗张指数较高,其抗张强度性能指标近20N.m/g,松厚度2.4cm3/g以上,初步达到纸板芯层浆的指标要求。Low brightness, high energy cosumption and poor strength properties are obstacles of bamboo CTMP pulps, which have been the main restrictive factors for their industrialization. The results of this research indicate that pulps impregnated by alkali hydrogen peroxide consume lower energy, get higher brightness and better strength properties compared with alklai and alkali sulfite impregnation process. Pulps impregnated by 1.5% NaOH and 2% H202 and bleached with 10% H202 can get 26% ISO brightness increment which exceed 4% ISO brightness increment compared with two other impregnation processes. Bleached pulps of the alkali hydrogen peroxide impregnation process have better tensile and bulk properties, tensile index is close to 20N m/g, bulk index exceeds 2.4cm3/g, which can meet requirements of paper board medium.

关 键 词：慈竹 化学机械浆 化学预处理 过氧化氢漂白 漂白性能 

分 类 号：TS749.3[轻工技术与工程—制浆造纸工程]