不同桉木化学机械法制浆性能的研究

doi:10.3969/j.issn.0253-2417.2015.01.010

Chemistry and Industry of Forest Products ›› 2015, Vol. 35 ›› Issue (1): 63-69.doi: 10.3969/j.issn.0253-2417.2015.01.010

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

DENG Yong-jun^{1 2}, FANG Gui-gan¹, HAN Shan-ming¹, JIAO Jian¹, LI Hong-bin¹, LIANG Fang-min¹, LIN Yan¹, LIANG Long¹

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

Abstract

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

CLC Number:

TQ35

DENG Yong-jun, FANG Gui-gan, HAN Shan-ming, JIAO Jian, LI Hong-bin, LIANG Fang-min, LIN Yan, LIANG Long. Variation of Chemi-mechanical Pulping Properties from Several Eucalyptus spp.Woodchips[J]. Chemistry and Industry of Forest Products, 2015, 35(1): 63-69.

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

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