ISSN: 1945-7553
CODEN: JTEVAB
Published Online: 1 March 2012
Page Count: 8

Characterizations of Bamboo Succus And Alkaline Peroxide Mechanical Pulping (APMP) Brightness of Bambusa Chungii

Song, Xueping
Institute of Light Industrial and Food Engineering, Guangxi Univ., Nanning, Guangxi

Luo, Lianxin
Institute of Light Industrial and Food Engineering, Guangxi Univ., Nanning, Guangxi

Wang, Qing
Institute of Light Industrial and Food Engineering, Guangxi Univ., Nanning, Guangxi

Wang, Shuangfei
Institute of Light Industrial and Food Engineering, Guangxi Univ., Nanning, Guangxi

(Received 31 October 2011; accepted 21 November 2011)

Abstract

The effects of pre-extraction and of the main components of bamboo succus on the alkaline peroxide mechanical pulping (APMP) pulp brightness of bambusa chungii are investigated by gas chromatography-mass spectroscopy (GC-MS) and infrared spectroscopy analysis. The results show that the chromophore and auxochrome groups of unsaturated bonds are plentiful in the bamboo succus. The contents of methyl benzene, xylene, and hydroquinone (75.88%, 0.98%, and 0.41%, respectively) are high in bamboo succus, and the three materials have great effect on APMP brightness, especially the hydroquinone. For the APMP with the bamboo chip by 60% ethanol pre-extracting, the brightness of unbleached pulp is higher about 5% ISO, the brightness of bleached pulp is higher about 4.2% ISO, and the p.c value is lower. If methyl benzene, xylene, and hydroquinone are added into the pulp, the CH₃, CH₂, acetyl, conjugated carbonyl C = O and C-O can be increased. The XPS analysis indicates that on the surface of pulp, the content of non-carbohydrate and the C = O, O - C - O and O = C - O increases, but the content of carbohydrate decreases if such additives are added.

Keywords:
bamboo succus, pre-extraction, brightness, APMP

Paper ID: JTE104492
DOI: 10.1520/JTE104492
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