文献类型：期刊文献

英文题名：Changes in dimensional stability and mechanical properties of Eucalyptus pellita by melamine-urea-formaldehyde resin impregnation and heat treatment

作者：Sun, Bailing[1] Wang, Xuehua[2] Liu, Junliang[1]

第一作者：孙柏玲

通信作者：Liu, J.|[a00050e6817df143678b7]刘婕;[a0005795ac2449bd9354e]刘杰;[a0005bf7bfb6858e3890c]刘军;[a0005e39c154a49be0322]刘娟;

机构：[1] Research Institute of Wood Industry, Chinese Academy of Forestry, 100091 Beijing, China; [2] International Centre for Bamboo and Rattan Beijing, Beijing 100102, China

年份：2013

卷号：71

期号：5

起止页码：557-562

外文期刊名：European Journal of Wood and Wood Products

收录：EI(收录号：20133416654261);Scopus(收录号：2-s2.0-84882272883)

语种：英文

外文关键词：Formaldehyde - Resins - Dimensional stability - Metabolism - Efficiency - Urea formaldehyde resins - Urea

摘要：This study investigated the influence of heat treatment on the dimensional stability and mechanical properties of untreated and low molecular weight melamine-urea-formaldehyde (MUF) resin treated Eucalyptus pellita wood. Wood samples were heat treated under vacuum atmosphere in laboratory conditions at temperatures between 160 and 240 C for 2-10 h. The results showed that anti-shrink efficiency and anti-swelling efficiency of MUF resin-impregnated heat-treated eucalypt wood were improved by up to 47 and 49 % at 240 C for 10 h separately, which were greater than those of heat-treated wood. In relation to mechanical properties, the modulus of elasticity and modulus of rupture decreased with increasing temperature and time, but the reduction of properties appeared to be smaller for MUF resin-impregnated heat-treated wood. Therefore, heat treatment combined with resin treatment of eucalypt wood shows potential to improve the wood quality of solid wood products. ? 2013 Springer-Verlag Berlin Heidelberg.