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林产化学与工业

林产化学与工业 ›› 2015, Vol. 35 ›› Issue (1): 63-69.doi: 10.3969/j.issn.0253-2417.2015.01.010

• 研究报告 • 上一篇    下一篇

不同桉木化学机械法制浆性能的研究

邓拥军1,2, 房桂干1, 韩善明1, 焦健1, 李红斌1, 梁芳敏1, 林艳1, 梁龙1   

  1. 1. 中国林业科学研究院 林产化学工业研究所;生物质化学利用国家工程实验室;国家林业局 林产化学工程重点开放性实验室;江苏省 生物质能源与材料重点实验室, 江苏 南京 210042;
    2. 中国林业科学研究院 林业新技术研究所, 北京 100091
  • 收稿日期:2014-09-24 出版日期:2015-02-25 发布日期:2015-03-05
  • 通讯作者: 房桂干(1966-),男,江苏兴化人,研究员,博士,博士生导师,主要从事制浆造纸清洁高效生产工艺技术及废水处理工程技术;E-mail:Fangguigan@icifp.cn。 E-mail:Fangguigan@icifp.cn
  • 作者简介:邓拥军(1969-),男,湖南永州人,高级工程师,博士生,主要从事清洁高效制浆技术研发及工程设计;E-mail:Yongju_deng@126.com
  • 基金资助:
    林业公益性行业科研专项(201104003-06)

Variation of Chemi-mechanical Pulping Properties from Several Eucalyptus spp.Woodchips

DENG Yong-jun1 2, FANG Gui-gan1, HAN Shan-ming1, JIAO Jian1, LI Hong-bin1, LIANG Fang-min1, LIN Yan1, LIANG Long1   

  1. 1. Institute of Chemical Industry of Forest Products, CAF;National Engineering Lab.for Biomass Chemical Utilization;Key and Open Lab.of Forest Chemical Engineering, SFA;Key Lab.of Biomass Energy and Material, Jiangsu Province, Nanjing 210042, China;
    2. Research Institute of Forestry New Technology, CAF, Beijing 100091, China
  • Received:2014-09-24 Online:2015-02-25 Published:2015-03-05

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摘要： 研究了尾巨桉、巨尾桉、尾叶桉、蓝桉及小叶桉这5种桉木的材性特征及其预处理-碱性过氧化氢化学机械浆(P-RC APMP)制浆性能。结果表明:5种桉木的综纤维素质量分数在77.96 %~81.36 %之间,小叶桉最高,巨尾桉最低;木质素质量分数在23.18 %~26.62 %之间,尾叶桉的最高,巨尾桉最低;纤维平均长度在755~785 μm之间,差异较小。采用P-RC APMP制浆方法,在H2O2用量5 %,NaOH用量4.5 %浸渍条件下,小叶桉的制浆得率最高,达86.7 %,巨尾桉最低,仅为84.2%;在相同加拿大游离度(300 mL CSF)下,蓝桉浆的强度性能和光学性能最优,纸浆的抗张强度和白度分别达30.13(N·m)/g和82.5%(ISO),且所需磨浆电耗最低,仅1 188 kWh/t,巨尾桉浆的强度性能和光学性能最差,纸浆的抗张强度和白度分别为16.9(N·m)/g和73.8 %(ISO),且所需磨浆电耗最高,约为1 370 kWh/t。

关键词: 桉木, 制浆性能, 材性特征, 化学机械浆

Abstract: The fiber morphology and chemical composition of five kinds of eucalyptus(Eucalyptus urophylla×E.grandis,E.grandis×E.urophylla,E.urophylla,E.globules,E.tereticonis) wood chips were analyzed. Their properties of chemi-mechanical (P-RC APMP) pulping by preconditioning refiner and chemical alkaline peroxide were studied. The results showed that the holocellulose contents of the five different eucalyptus woods were between 77.96 %-81.36 %, in which E.tereticonis had the highest and E.grandis×E.urophylla the lowest. The lignin contents of these woods ranged from 23.18 %-26.62 %, in which E.urophylla had the highest and E.globules the lowest. Besides, there was very small difference in the fiber average length of the woods and it was between 755 and 785μm. Then five different eucalyptus wood chips were processed by P-RC APMP under the condition of impregnating with H2O2 5.0 % and NaOH 4.5%. As a result, E.tereticonis showed the highest pulp yield up to 86.7 %, while the pulp yield of E.grandis×E.urophylla was the lowest, 84.2 %. In addition, with the same Canadian Freeness Standard, E.globules pulp exhibited the best strength and optical properties and the lowest pulping power consumption. On the contrast, E.grandis×E.urophylla pulp showed the worst strength and optical properties, and the highest pulping power consumption.

Key words: Eucalyptus spp., pulping properties, wood characteristic, chemi-mechanical pulping

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