生物质化学工程2018，Vol.52Issue(3)：35-39,5.DOI:10.3969/j.issn.1673-5854.2018.03.006
酶解木质素改性三聚氰胺脲醛树脂的制备与应用
Synthesis and Application of Melamine Urea Formaldehyde Monolithic Resin Modified by Enzymolysis Lignin
摘要
Abstract
The enzymolysis lignin modified melamine urea formaldehyde resin( ELMUF) was prepared by using the classic alkali-acid-alkali method with enzymolysis lignin ( EL ) , urea ( U ) , formaldehyde ( F ) and melamine ( M ) as raw materials.The influences of the amount of EL on the curing time, curing temperature, free formaldehyde content, the strength and formaldehyde release of the plywood obtained from the prepared ELMUF resin were investigated.With the increase of the amount of EL, the free formaldehyde content decreased from 0.26％ to 0.12％, the curing time increased from 96 s to 152 s and the viscosity increased from 86 mPa· s to 1140 mPa· s.The curing process of resins with different amounts of EL was determined by DSC.The results showed that the introduction of EL could reduce the reactivity of the urea-formaldehyde resin.With the increase of the amount of EL, the curing temperature increased from 120.6 ℃ to 132.0 ℃, which required the hot pressing process requirements to be more stringent.关键词
脲醛树脂/酶解木质素/固化速度/胶合强度Key words
urea-formaldehyde resin/enzymolysis lignin/curing rate/bonding strength分类
化学化工引用本文复制引用
郭腾飞,高士帅,王春鹏..酶解木质素改性三聚氰胺脲醛树脂的制备与应用[J].生物质化学工程,2018,52(3):35-39,5.基金项目
中国林业科学研究院林产化学工业研究所研究团队建设创新工程项目(LHSXKQA06) （LHSXKQA06）
