林产化学与工业2019，Vol.39Issue(1)：23-28,6.DOI:10.3969/j.issn.0253-2417.2019.01.003
自催化型萜烯基环氧树脂多元醇水分散体的制备与表征
Preparation and Characterization of Self-catalyzing Polyol Dispersions from Terpinene-maleic Ester Based Epoxy Resin
摘要
Abstract
Self-catalyzing polyol dispersions with tertiary amine groups (TBP or TDP) were prepared by reaction of terpinene-maleic ester based epoxy resin (TME) with N-benzylethanolamine (BEA) or diethanolamine (DEA) . The tertiary amine groups in the polyol structure could catalyze the crosslinking reaction between hydroxyl group and isocyanate group in the crosslinking reaction of polyol dispersions and polyisocyanate to form two-component waterborne polyurethane. Suitable synthesis conditions were obtained by studying the effect factors of synthesis reaction. The optimum reaction conditions of the preparation of TME based polyols TBP or TDP were reaction at 80 ℃ for 1 h with using ethanol as solvent and the amount of ethanol was about 10％ of the total quality of reactants. The chemical structures of the polyols were characterized by FT-IR and NMR and the average molecular weight of the polyoys was determined by GPC. The effect of neutralization degree on the particle size distribution of polyol dispersions was investigated by laser particle sizer. When the neutralization degree was 90％, the particle size distribution of polyol dispersions was multimodal and the stability of the dispersions was poor. However, when the neutralization degree was 100％, the particle size distribution of the dispersions was unimodal and achieved nanoscale dispersion.关键词
萜烯酯型环氧树脂/自催化多元醇/水分散体/制备Key words
terpinene-maleic ester based epoxy resin/self-catalyzing polyol/waterborne dispersion/preparation分类
化学化工引用本文复制引用
吴国民,陈健,霍淑平,刘贵锋,金灿,孔振武..自催化型萜烯基环氧树脂多元醇水分散体的制备与表征[J].林产化学与工业,2019,39(1):23-28,6.基金项目
中央级公益性科研院所基本科研业务费专项资金重点项目(CAFYBB2017ZC005) （CAFYBB2017ZC005）
