文献类型：期刊文献

英文题名：Synthesis and Characterization of Biobased Melamine Formaldehyde Resins from Bark Extractives

作者：Chai, Yubo[1,2] Zhao, Yong[2] Yan, Ning[2]

第一作者：柴宇博;Chai, Yubo

通信作者：Yan, N[1]

机构：[1]Chinese Acad Forestry, Res Inst Wood Ind, Beijing 100091, Peoples R China;[2]Univ Toronto, Fac Forestry, Toronto, ON M5S 3B3, Canada

年份：2014

卷号：53

期号：28

起止页码：11228-11238

外文期刊名：INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH

收录：;EI(收录号：20143017983556);Scopus(收录号：2-s2.0-84904479815);WOS:【SCI-EXPANDED(收录号:WOS:000339227700003)】；

基金：Financial support from the public and private partners of the Ontario Research Fund-Research Excellence project: Bark Biorefinery is highly acknowledged. Dr. Darcy Burns of the NMR center, Department of Chemistry, University of Toronto, is highly appreciated for his help on the NMR measurements.

语种：英文

外文关键词：Curing - Forestry - Formaldehyde - Resins

摘要：In this study, bark alkaline extractives from the mountain pine beetle (Dendroctonus ponderosae Hopkins) infested lodgepole pine (Pinus contorta Dougl.) was used to partially replace 30 wt % of melamine in formulating the biobased bark extractive-melamine formaldehyde (MF) resin. Results showed that the addition of the bark extractives and the type of solvent system used for resin formulation significantly affected the initial molecular weight, molecular structure, viscosity, curing behavior, postcuring thermal stability, and bonding performance of the resulting resins. The bark extractive-MF resins exhibited similar dry and wet bonding strengths to the laboratory made control MF resins formulated in the same type of solvent system. The liquid-state C-13 NMR study showed that bark extractives were reactants and incorporated into the resulting biobased MF resin structures. Bark extractives obtained from the mountain pine beetle infested lodgepole pine showed promise as a suitable partial replacement for melamine in MF resin formulations.