文献类型：会议论文

英文题名：EFFECT OF PRETREATMENT TEMPERATURE ON HYDROGEN PEROXIDE BLEACHING FOR CHEMIMECHANICAL PULPS FROM A BAMBOO SPECIES NEOSINOCALAMUS AFFINIS

作者：Liang Fangmin[1] Shen Kuizhong[1] Fang Guigan[1] Deng Yongjun[1] Li Ping[1] Han Shanming[1] Jiao Jian[1]

第一作者：梁芳敏

通信作者：Liang, FM[1]

机构：[1]Chinese Acad Forest, Inst Chem Ind Forest Prod, Nanjing 210042, Peoples R China

会议论文集：International Symposium on Emerging Technologies of Pulping and Papermaking

会议日期：NOV 08-10, 2010

会议地点：Guangzhou, PEOPLES R CHINA

语种：英文

外文关键词：bamboo; mechanical pulping; hydrogen peroxide bleaching

年份：2010

摘要：Chemimechanical Pulping and bleaching properties of a bamboo species Neosinocalamus affinis (Rendle) Keng f. were reviewed in this paper. The brightness of bleached bamboo chemi-mechanical pulps was usually too low to be used as a furnish in value-added paper products. The effects of various impregnation conditions by using NaOH, Na(2)SO(3) at the temperature of 130 degrees C, 75 degrees C, respectively, on bleaching properties were compared before refining. Single-stage and two-stage hydrogen peroxide bleaching experiments were conducted. Better bleaching response is obtained at the impregnation temperature of 75 degrees C, than 130 degrees C. By using the impregnation of 2% NaOH at 75 degrees C, bleached bamboo pulps achieve the brightness of more than 67% ISO by using 10% hydrogen peroxide single-stage bleaching. Two-stage bleaching responses are some the same as that of single-stage bleaching. At a given hydrogen peroxide application level in single-stage hydrogen peroxide bleaching, the optimal alkali application amount for Neosinocalamus affinis is similar to China fir and Sichuan mulberry, but different from that of Alnus Gremastogyne, which has a higher ratio of alkali to hydrogen peroxide. Bleachability of bamboo species is the worst among the four materials