from a high photosynthetic efficiency of cereal crops, corn is very easy to isolated starch suitable as a green chemical industry can be further cattle equipment materials. This paper describes a water-resistant polyester-based formaldehyde-free corn starch-based adhesives for wood production process. The process includes four steps: 1) corn starch, sulfuric acid solid-phase oxidation of oxidized starch; 2) Preparation of oxidized starch, high-pressure rapid liquefaction reactivity of starch-based polyol; 3) High activity of starch-based polyol with acid, such as when the lizard more than Wu (anhydride) mixed, and some esterification crosslinking; 4) After the pre-esterification product of ethanol, diluted with water to become available spray adhesive glue, polyester-type timber. to use the new wood adhesive prepared by the poplar plywood The bonding strength and water resistance up to national standard class Ⅰ board requirements. This paper reports on the mass fraction of sulfuric acid, oxidation reaction temperature and time; liquefaction agent and oxidized starch mass ratio, liquefaction reaction temperature and time, cross-linking of the carboxyl group and polyols such as hydroxyl group when compared with the amount of processing parameters, as well as glue, hot pressing temperature, pressure, pressing time parameters such as the use of technology to use the kinds of polyester prepared in poplar wood adhesive bonding strength of plywood and water-resistance of .
author: Roger Ruan Cheng-mei Liu Yuhuan Xie Yong PENG Dan-Dan Zheng Xiangyang Liu YuhuanRoger RuanLiu ChengmeiLin XiangyangXie NingyongPeng HongZheng Dandan Author: Liu Yuhuan, Liu Mei, Xie Yong, PENG, Liu Yuhuan, Liu Chengmei, Xie Ningyong, Peng Hong ( Food Science and Technology, Nanchang University, State Key Laboratory, Nanchang, 330047; the material transforequipment mation of university students in Nanchang Engineering Research Center of the Ministry of Education, Nanchang, 330047)
Roger Ruan, Roger Ruan (Food Science and Technology, Nanchang University, State Key Laboratory, Nanchang, 330047; the material transformation of the Ministry of Education, Nanchang University Students Engineering Research Center, Nanchang, 330047; University of Minnesota Bio-products and eco-systems Engineering, Sao Paulo, 55108)
Xiang-Yang Lin, Dan-Dan Zheng, Lin Xiangyang, Zheng Dandan (physical transforequipment mation of the Ministry of Education, Nanchang University Students Engineering Research Center, Nanchang, 330047) Source: Journal of Agricultural Engineering ISTIC EI PKU English Source: TRANSACTIONS OF THE CHINESE SOCIETY OF AGRICULTURAL ENGINEERING
Year, Volume (Issue): 2008 24 (9)
words: TQ072
Keywords: corn starch quickly liquefied wood adhesive bonding strength of polyester solid-phase oxidation of corn starch rapid liquefaction polyesters wood adhesives shear strength solid phase oxidation