机构地区: 中南民族大学化学与材料科学学院催化材料科学湖北省重点实验室
出 处: 《化学与生物工程》 2008年第8期12-14,共3页
摘 要: 采用无机路线制备出了产率达55.32%、环氧值达0.257的新型舍氮杂环环氧树脂。先制备乙醇钠,再将三羟乙基异氰脲酸酯(THEIC)加到强碱性的乙醇钠中,得到相应的钠盐,然后在催化剂的作用下,以环氧氯丙烷(ECH)与所制备的钠盐反应得到目的产物,并探讨了相关工艺条件对环氧树脂产率和环氧值的影响。在THEIC用量为0.02mol情况下的最佳合成工艺条件是:用乙醇作溶剂、用量为30mL,n(THEIC):n(ECH)为1:12,催化剂用量为0.165g,NaOH用量为2.8g,反应时间为8~9h。 In this paper, a novel nitrogen-containing heterocyclic epoxy resin with the yield of 55.32% and the epoxy value of 0. 257 was synthesized. The specific synthetic routes were the preparation of sodium ethylate using ethanol and sodium hydroxide firstly; then the preparation of sodium salt by the reaction of sodium ethyl- ate with tris(2-hydroxyethyl)isocyanurate (THEIC) ; finally the product prepared by the reaction of the sodium salt with epichlorohydrin (ECH) using tetrabutyl ammonium bromide as the catalyst. The effects of different technology factors on yield and epoxy value of the product were investigated. When the amount of THEIC was 0.02 mol, the optimum synthetic conditions were determined as follows, using 30 mL ethanol as solvent, n (THEIC) : n(ECH) was 1 : 12,catalyst dosage was 0. 165 g,NaOH dosage was 2.8 g and reaction time was 8-9h.
关 键 词: 环氧树脂 合成 三羟乙基异氰脲酸酯 环氧氯丙烷
领 域: [化学工程]