羟基聚氨酯丙烯酸酯乳液的合成及其在双组分木器涂料中的应用  

Synthesis of Hydroxyl Polyurethane Acrylate Emulsion and Its Application in Waterborne Two-component Wood Coatings

作　　者：柴广 雷木生 游仁国 CHAI Guang;LEI Mu-sheng;YOU Ren-guo(Hubei Double-bond Fine Chemical Co.,Ltd.,Wuhan 430040,Hubei,China)

机构地区：[1]湖北双键精细化工有限公司,武汉430040

出　　处：《中国涂料》2024年第6期38-43,共6页China Coatings

摘　　要：以聚己二酸新戊二醇酯(PNA1000)、六亚甲基二异氰酸酯(HDI)、聚醚二元醇磺酸盐(SPPG)、正丁醇(BO)和4-丙烯酸羟丁酯(4-HBA)为原料合成端乙烯基封端的聚氨酯预聚体,再以甲基丙烯酸甲酯(MMA)、丙烯酸正丁酯(BA)、丙烯酸羟乙酯(HEA)、丙烯酸(AA)为聚合单体,通过预乳化种子乳液聚合法合成了一种羟基聚氨酯丙烯酸酯乳液,研究了封端单体种类、聚氨酯质量分数、羟基含量对乳液稳定性和性能的影响。结果表明,使用BO和4-HBA作为封端单体、聚氨酯质量分数为30%、羟基含量为1.0%(基于固含量),乳液合成稳定且性能优异,用其配制的水性双组分木器涂料,附着力好、抗黏连性好、耐水和耐化学品性优异。Using poly-neopentylene adipate glycol(PNA-1000),hexamethylene diisocyanate(HDI),polyether diol containing sulfonate(SPPG),n-butanol(BO)and 4-hydroxybutyl acrylate(4-HBA)as raw materials,vinyl terminated polyurethane ionomer was synthesized,then a hydroxyl polyurethane acrylate emulsion was prepared via pre-emulsification seed emulsion polymerization,using methyl methacrylate(MMA),n-butyl acrylate(BA),hydroxyethyl acrylate(HEA)and acrylic acid(AA)as monomers.The effects of the type of capping monomer,the weight ratio of polyurethane and hydroxyl content on emulsion stability and performance were studied.The results indicate that when BO and 4-HBA were used as capping monomers,the weight ratio of polyurethane was 30%,and the hydroxyl content was 1.0%(based on solid content),the emulsion polymerization had the best stability and excellent performance.The two-component waterborne wood coatings prepared with it have good adhesion,good block resistance,and excellent water and chemical resistance.

关 键 词：羟基聚氨酯丙烯酸酯乳液 水性木器涂料 附着力 抗黏连 

分 类 号：TQ630.4[化学工程—精细化工]