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狼尾草中密度纤维板的原料特性(PDF)

《南京林业大学学报(自然科学版)》[ISSN:1000-2006/CN:32-1161/S]

Issue:
2010年04期
Page:
149-152
Column:
研究简报
publishdate:
2010-08-06

Article Info:/Info

Title:
Characteristics of Chinese pennisetum as raw material for medium density fiberboard
Author(s):
ZHAO Anzhen1 ZHOU Dingguo2*
1.College of Information Science and Technology, Nanjing Forestry University, Nanjing 210037, China; 2.College of Wood Science and Technology, Nanjing Forestry University, Nanjing 210037, China
Keywords:
Chinese pennisetum chemical component fiber morphology medium density fiberboard physical and mechanical properties
Classification number :
S781
DOI:
10.3969/j.jssn.1000-2006.2010.04.032
Document Code:
A
Abstract:
The analysis results of chemical composition of Chinese pennisetum showed that the contents of holocellulose, pentosan ,lignin, benzenealcohol extractives and ash were 71.83 %, 19.60 %,23.48 %, 2.84 % and 4.84 %respectively. The ash content of the leaf was the highest among the examined 5 parts of Chinese pennisetum, which was up to 11.21 %. The measurements of fiber morphology on Chinese pennisetum showed that the fiber aspect ratio is 108, and the ratio of cellwall thickness to cell diameter is 0.32. Of the thermalmechanical refined fibers, 70.8 % was the qualified long fibers and fiberbundles. The experimental panels of MDF from Chinese pennisetum were manufactured, and their physical and mechanical properties were evaluated. The modulus of rupture (MOR), modulus of elasticity (MOE), and internal bond (IB) of those panels met the requirements specified in China national standard GB/T 11718—1999. Analysis results showed that Chinese pennisetum was a potential feasible raw material for making medium density fiberboard.

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Last Update: 2010-08-06