南京林业大学学报(自然科学版)Issue(3):120-124,5.DOI:10.3969/j.issn.1000-2006.2014.03.023
豆胶胶合板的高频热压机理及胶合特性
Hot-pressing mechanism and bonding characteristics of soy protein adhesive plywood under radio-frequency heating
摘要
Abstract
The distribution of temperature field and moisture migration in the mats with different moisture content through radio-frequency ( RF) heating and pressing was investigated in this work, the influence of gluing content of soyprotein adhesive ( SPA) on the bonding characteristics of plywood was also examined. The results showed that the mats had a u-niformly distribution of temperature field during the RF heating at 6.78 MHz and pressing at 1.0 MPa. The RF drying ef-ficiency increased towards the center of the mats, creating the typical drying pattern from inside to outside. When the glue spread amount ( two faces) of veneer was 400 g/m2 , the wet shear strength of plywood was 0.83 MPa and the work-ing time was just 12 min.关键词
胶合板/高频热压/大豆蛋白胶黏剂/胶合性能Key words
plywood/radio-frequency heating and pressing/soy protein adhesive/bonding characteristics分类
农业科技引用本文复制引用
李文定,王超,张洋,高鹏,李珊珊,高晨超..豆胶胶合板的高频热压机理及胶合特性[J].南京林业大学学报(自然科学版),2014,(3):120-124,5.基金项目
高校科研成果产业化推进工程项目( JH10-15);苏北科技富民强县项目( BN2009011);江苏省科技型企业技术创新资金项目 ()