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Study on Physical and Mechanical Properties of Poplar Modified by Phenol-formaldehyde Resin |
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| Authors: | CHAI Yubo LIU Huanrong LIU Junliang LI Longzhe TANG Deguo Research Institute of Wood Industry Chinese Academy of Forestry Beijing PRChina Construction Bureau of Yanbian Korean Autonomous Prefecture Yanji PRChina Forestry Bureau of Wangqing County Wangqing PRChina |
| Institution: | CHAI Yubo1 LIU Huanrong1 LIU Junliang1 LI Longzhe2 TANG Deguo3 1.Research Institute of Wood Industry,Chinese Academy of Forestry,Beijing 100091,P.R.China 2. Construction Bureau of Yanbian Korean Autonomous Prefecture,Yanji 133000,P.R.China 3. Forestry Bureau of Wangqing County,Wangqing 133200,P.R.China |
| Abstract: | Impregnation method can effectively improve physical and mechanical properties of wood. In this study, plantation poplar lumbers are impregnated by a low molecular weight phenol-formaldehyde resin solution with concentration of 30% under vacuum-pressure process, and then dried and machined according to the related standards. The results show that the physical and mechanical properties of poplar can be improved by the treatment, except for toughness. The average density of poplar increases from 0.397 to 0.71... |
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