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三聚氰胺改性脲醛对马尾松速生材性质影响(PDF)

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

Issue:
2011年01期
Page:
67-70
Column:
研究论文
publishdate:
2011-01-01

Article Info:/Info

Title:
Effects of the MUF on the properties of fastgrowing Pinus massoniana lumber
Author(s):
WANG Youhong GU Lianbai LIU Qiming DU Guoxing
1.College of Forestry Gardens, Anhui Agricultural University, Hefei 230036,China; 2.College of Wood Science and Technology, Nanjing Forestry University, Nanjing 210037,China
Keywords:
modified ureaformaldehyde resin surface strengthening fastgrowing P. massoniana lumber physical and mechanical properties dimension stability
Classification number :
S781.6
DOI:
10.3969/j.jssn.1000-2006.2011.01.015
Document Code:
A
Abstract:
In order to improve the dimension stability and main physical mechanical properties of Pinus massoniana and make good use of it, P. massoniana lumber treated with steam, press dried and surface strengthened with modified melamine-urea formaldehyde resin (MUF) was investigated.The results showed that the MOE, MOR, and compressive strength perpendicular to grain and hardness of the surface strengthened timber were 11 294,831, 43 MPa and 2 479 N respectively, compared with the airdried timber, and the increasing percentage were 75 %, 105 %, 303 % and 90 % respectively. But the abrasive wearability of the surface strengthened timber was worse than the airdried timber. The surface density was 0445 g/cm3 and it was 16492 % bigger than that of internal. The ASE, MEE and RWA of the surface strengthened timber were 8623 %, 5118 % and 3151 %, respectively and its dimension stability was better than that of the airdried timber. So, the surface strengthening did a lot of good to the fastgrowing plantation lumber.

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Last Update: 2011-01-14