Research on utilizing recycled plastic to make environment-friendly plywood  

作　　者：CUI Ting SONG Kun-lin ZHANG Shuang-bao 

机构地区：[1]College of Materials Science and Technology, Beijing Forestry University, Beijing 100083, P. R. China [2]Research Institute of Wood Industry, Chinese Academy of Forestry, Beijing 100091, P. R. China

出　　处：《Forestry Studies in China》2010年第4期218-222,共5页中国林学（英文版）

基　　金：supported by the National Natural Science Foundation of China (Grant No.31070501);Beijing Scientific Research and Base Construction Project in 2010 and the College Student Research Training Plan in Beijing Forestry University (No.200705005)

摘　　要：In our study, we replaced traditional adhesives with compounds made with recycled plastic shopping bags in order to make hot-melt plywood using various amounts of plastic film, different hot-pressing temperatures and hot-pressing times. All three variables have an effect on the intensity and water-resistance of plywood. The results show that the bonding strength of plywood does not increase with increasing amounts of plastic film. When the hot-pressing temperature is increased to 150℃, the bonding strength does not necessarily increase any further. At a hot-pressing time of 6 min, the bonding strength reaches a maximum, after which it will decrease. The optimum hot-pressing parameters are as follows： 100 g·m^-2 of recycled plastic, a hot-pressing temperature of 150℃ and a hot-pressing time of 6 min. This study puts forward a new idea of making use of plastic waste, which, ultimately, may solve the problem of formaldehyde emission without damaging the environment. It has enormous potential market applications.In our study, we replaced traditional adhesives with compounds made with recycled plastic shopping bags in order to make hot-melt plywood using various amounts of plastic film, different hot-pressing temperatures and hot-pressing times. All three variables have an effect on the intensity and water-resistance of plywood. The results show that the bonding strength of plywood does not increase with increasing amounts of plastic film. When the hot-pressing temperature is increased to 150℃, the bonding strength does not necessarily increase any further. At a hot-pressing time of 6 min, the bonding strength reaches a maximum, after which it will decrease. The optimum hot-pressing parameters are as follows： 100 g·m^-2 of recycled plastic, a hot-pressing temperature of 150℃ and a hot-pressing time of 6 min. This study puts forward a new idea of making use of plastic waste, which, ultimately, may solve the problem of formaldehyde emission without damaging the environment. It has enormous potential market applications.

关 键 词：recycled plastic shopping bags hot-melt plywood hot-pressing parameters comprehensive performance 

分 类 号：X783.2[环境科学与工程—环境工程] TS653.3[轻工技术与工程]