摘要
大豆蛋白胶因其可再生、可降解和环保性而受到广泛关注。豆胶的热反应特性和胶合特性研究结果显示:以20℃/min速率升温时,豆胶胶液在157℃时完全固化,在173℃开始降解;胶合板的胶合强度与涂胶量呈线性正相关。按热压温度160℃、热压时间80s/mm、压力1.6MPa、双面涂胶量450g/m2的工艺制备豆胶胶合板,其湿态胶合强度为0.78 MPa,满足GB/T 9846.3-2004《胶合板第3部分:普通胶合板通用技术条件》中Ⅱ类胶合板的要求。
Derived from a protein adhesive （SPA） has renewable, biodegradable and environmentally friendly resource, soy been widely considered for a long time. The objective of the study was to evaluate thermal and bonding characteristics of SPA used in plywood manufacturing. At a heating rate of 20 ℃/min, the SPA samples totally cured at 157℃ and thermal degradation began at 173 ℃. Testing results showed there was a positive linear correlation between glue consumption and bonding strength of the SPA bonded plywood samples. When the SPA plywood samples were made with 450 g/m^2 glue consumption （two sides） under 1.6 MPa pressure at 160 ℃ for 80 s/mm, the wet bonding strength of the samples reached 0. 78 MPa, which met the specification requirement of the National Standard GB/T 9846.3-2004 for type Ⅱ plywood.
出处
《木材工业》
北大核心
2015年第2期9-12,共4页
China Wood Industry
基金
高校科研成果产业化推进工程项目(JH10-15)
江苏省科技型企业技术创新资金项目(BC2013422)
江苏省普通高校研究生科研创新计划项目(CXZZ13_0542)
关键词
大豆蛋白胶
热反应特性
胶合特性
胶合板
soy protein adhesive （SPA）
thermal characteristics
bonding characteristics
plywood
