林产化学与工业2018，Vol.38Issue(2)：126-132,7.DOI:10.3969/j.issn.0253-2417.2018.02.017
三(2-羟乙基)异氰尿酸酯改性三聚氰胺甲醛浸渍树脂的机理研究
Synthesis Mechanism of Tris(2-hydroxyethyl)isocyanate Modified Melamine Formaldehyde Impregnated Resin
摘要
Abstract
The tris(2-hydroxyethyl)isocyanate(THEIC) modified melamine formaldehyde(MFT) impregnated resin was prepared with THEIC,melamine(M) and formaldehyde(F) as raw materials. The MFT resin could achieve the requirements of GB/T 14732—2006. The stability of MFT resin was significantly improved with THEIC,as the n(THEIC)/n(F) was 10 % or 15 %. MFT resin(n(F)/n(M) = 1.85 and n(THEIC)/n(F)= 15 %) remained highly transparent up to 24 days, and its free formaldehyde was only 0.05 %. Infrared characterization of MFT resin analysis showed that the absorption peaks of carbonyl functional groups of MFT resin changed to 1680.9 cm-1from 1670.7 cm-1in THEIC. The C=N absorption peak in melamine ring was 1525.7 cm-1,and split up into two peaks(1545.3 and 1504.0 cm-1) in MFT resin. 13C NMR qualitative and quantitative analysis the reaction process of the MFT resin showed that the hydroxymethyl of amino in melamine was the main reaction and accompanied with the etherification reaction (between hydroxymethyl, hydroxymethyl and THEIC). The main reaction products were oligomers. The joining of the THEIC made the reverse reaction of the condensation of amino and hydroxyl groups,which was hydrolysis reaction,and proved that the resin storage period increased.关键词
三(2-羟乙基)异氰尿酸酯(THEIC)/改性三聚氰胺甲醛树脂/装饰纸浸渍树脂Key words
tris(2-hydroxyethyl)isocyanate/modified melamine formaldehyde resin/decorative paper impregnated resin分类
化学化工引用本文复制引用
王荣兴,张祖新,陈日清,王春鹏..三(2-羟乙基)异氰尿酸酯改性三聚氰胺甲醛浸渍树脂的机理研究[J].林产化学与工业,2018,38(2):126-132,7.基金项目
中国林科院中央级公益性科研院所基本科研业务费专项资金(CAFYBB2018ZB008) （CAFYBB2018ZB008）
