文献类型：期刊文献

英文题名：Manufacture of Environmentally Friendly Plywood Bonded with Plastic Film

作者：Fang, Lu[1] Chang, Liang[1] Guo, Wen-jing[1] Chen, Yong-ping[1] Wang, Zheng[1]

通信作者：Wang, Z[1]

机构：[1]Chinese Acad Forestry, Res Inst Wood Ind, Beijing, Peoples R China

年份：2013

卷号：63

期号：7-8

起止页码：283-287

外文期刊名：FOREST PRODUCTS JOURNAL

收录：;EI(收录号：20143118007466);Scopus(收录号：2-s2.0-84904802936);WOS:【SCI-EXPANDED(收录号:WOS:000330500400008)】；

基金：We gratefully acknowledge the financial support from "Key Technology and Industrialization of Environment-Friendly Poplar Veneer Composites (201004004)."

语种：英文

外文关键词：Adhesive joints - Adhesives - Formaldehyde - Plastic films - Plastics industry - Plywood - Scanning electron microscopy - Urea - Urea formaldehyde resins - Water absorption - Wood products

摘要：The main objective of this study was to evaluate the feasibility of using unmodified plastic film as a novel wood adhesive in the plywood production, which is done to eliminate formaldehyde release during plywood production and use. The bondability of plastic film was determined by testing the shear strength of plywood. In addition, physical mechanical properties, including thickness swelling, water absorption, modulus of elasticity, and modulus of rupture under the optimal pressing conditions, were also considered. Results showed that the plywood could meet the requirements for Grade 2 plywood according to Chinese National Standard (GB/T 17657-1999) and that the highest strength was obtained under hot-pressing conditions (pressure, 0.7 MPa; temperature, 160 degrees C; time, 1 min.mm(-1); and film dosage of two layers), which was comparable to that of commercial urea-formaldehyde plywood as determined by Liu (Master's thesis, Zhejiang Agric. and Forestry Univ., Hangzhou, China, 2010). Pressing temperature had a notable effect on adhesive penetration and bonded joints formed. Mechanical interlock, as observed by scanning electron microscopy, formed between nonpolar plastic film and porous poplar veneer.