环氧-丙烯酸酯杂化乳液的制备及其涂膜性能的研究

采用一种特制的齿状搅拌头(简称STB搅拌头),在600 r/min的转速下均质化,成功制备了环氧-丙烯酸酯杂化"细乳液".然后用傅里叶红外光谱(FTIR)、激光光散射粒径仪(PCS)及透射电镜(TEM)对乳液的相关性能进行了表征.结果表明:杂化乳液的聚合稳定性和储存稳定性优异,且其涂膜的耐水性、附着力和耐磨性能良好.     

紫外光固化丙烯酸齐聚物体系的研究发展

介绍了近年来国内外丙烯酸齐聚物的研究状况,重点论述环氧丙烯酸酯和聚氨酯丙烯酸酯在减少环境污染方面的改性研究。总结了光引发剂、活性稀释剂的发展与选择,氧干扰问题新的解决方法,并指出紫外光(UV)固化树脂的发展趋势。     

一种无APEO的含磷环氧丙烯酸酯防锈乳液的制备与性能

制备了一种无APEO的水性环氧丙烯酸酯防锈乳液。实验对阴、非离子乳化剂的用量、配比、磷酸酯类乳化剂和单体的用量进行了研究,并得出最佳反应条件:异构十三醇聚氧乙烯醚硫酸铵乳化剂(LCA213)与十二烷基二苯醚二磺酸二钠乳化剂(DSB)的比例为5∶1,复合乳化剂的用量占单体总量的3%,特种嵌端聚醚型非离子乳化剂(EFS-630)占乳化剂量的70%,磷酸酯反应型乳化剂烯丙基醚羟基磷酸酯(UCAN-3)的量为8%,磷酸酯功能性单体甲基丙烯酸聚醚磷酸酯(APE-2005)的用量占单体总量的4%,入釜丙烯酸预乳液量为1/4,滴加时间为3h,反应温度85℃时,制得的乳液细腻,均匀,涂膜完整。     

CURING OF PARA-TERT-BUTYLPHENOL FORMALDEHYDE EPOXY-ACRYLIC RESIN IN THE PRESENCE OF REACTIVE DILUENTS

Para-tert-butylphenol formaldehyde epoxy-acrylic resin was synthesized starting from para-tert-butylphenol formaldehyde resin in reaction with glycidyl acrylate. It was cured as such, or in the presence of reactive diluents based on glycidyl ethers of phenol, para-tert-butylphenol, as well as para-nonylphenol, respectively. The curing reaction was studied by the viscometry technique at temperatures in the range 60–90°C. The curing starts with gelation and with resin measurable rates only in the case of the resin diluted with both para-tert-butylphenol and para-nonylphenol epoxy-acrylic diluents. The analyzed samples heated on 110°C, duration 16 h, show that the curing reaction depends very much on the structure of the reactive diluents.