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Effects of Bamboo Outer Skin on SCMP Pulping of Bambusa Chungii
  
DOI:10.11980/j.issn.0254-508X.2018.06.004
Key Words:bamboo outer skin  SCMP  wax  analysis
Fund Project:国家自然科学基金项目“高得率竹浆中非木素组分的光热诱导返色机理和生物调控”(项目批准号:31660182)。
Author NameAffiliation
JIN Ye1,2 1.College of Light Industry and Food Engineering Guangxi University Nanning Guangxi Zhuang Autonomous 530004
2.Guangxi key Lab of Clean Pulping and Papermaking and Pollution Control Nanning Guangxi Zhuang Autonomous 530004 
LI Guang-xing1,2 1.College of Light Industry and Food Engineering Guangxi University Nanning Guangxi Zhuang Autonomous 530004
2.Guangxi key Lab of Clean Pulping and Papermaking and Pollution Control Nanning Guangxi Zhuang Autonomous 530004 
LIU Yi1,2 1.College of Light Industry and Food Engineering Guangxi University Nanning Guangxi Zhuang Autonomous 530004
2.Guangxi key Lab of Clean Pulping and Papermaking and Pollution Control Nanning Guangxi Zhuang Autonomous 530004 
ZHANG Ke-lei1,2 1.College of Light Industry and Food Engineering Guangxi University Nanning Guangxi Zhuang Autonomous 530004
2.Guangxi key Lab of Clean Pulping and Papermaking and Pollution Control Nanning Guangxi Zhuang Autonomous 530004 
LI Ming-fu1,2 1.College of Light Industry and Food Engineering Guangxi University Nanning Guangxi Zhuang Autonomous 530004
2.Guangxi key Lab of Clean Pulping and Papermaking and Pollution Control Nanning Guangxi Zhuang Autonomous 530004 
LUO Lian-xin1,2,* 1.College of Light Industry and Food Engineering Guangxi University Nanning Guangxi Zhuang Autonomous 530004
2.Guangxi key Lab of Clean Pulping and Papermaking and Pollution Control Nanning Guangxi Zhuang Autonomous 530004 
WANG Shuang-fei1,2 1.College of Light Industry and Food Engineering Guangxi University Nanning Guangxi Zhuang Autonomous 530004
2.Guangxi key Lab of Clean Pulping and Papermaking and Pollution Control Nanning Guangxi Zhuang Autonomous 530004 
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Abstract:The effect of bamboo outer skin on SCMP pulping of Bambusa Chungii was studied. SEM observation found a dense waxy layer on the surface of bamboo outer skin. Hexane was used as extractive agent to extract the wax on bamboo outer skin. Wax components analyzed by GC-MS were hydrocarbom, acids, phenols, ketones, aldehyde and other substances. The compositions of native bamboo and bamboo with removed outer skin and their SCMP and bleached SCMP were analyzed, the results showed that bamboo outer skin hinderes permeation of the liquid, and affected dissolving out of extractives during the proceses of sulfonating and refining. XPS analysis showed that original bamboo fiber surface contained more extractives which consumed H2O2 and affected H2O2 bleaching. Using one and two stage bleaching the brightness increase of SCMP of bamboo with removed outer were 24.9 and 36.4 percentage points respectively. The brightness increase of the of SCMP of native bamboo were 24.5 and 34.6 percentage points respectively. The brightness increase of the former was higher than that of the latter under the same bleaching conditions.
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