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作 者:邱俊峰[1] 谢彪[1] 王小腾 朱军[1] 林润雄[1]
机构地区:[1]青岛科技大学高性能聚合物研究院,山东青岛266042
出 处:《热固性树脂》2015年第4期5-8,共4页Thermosetting Resin
基 金:山东省科技发展计划项目(2014GGX102043)资助
摘 要:采用过氧乙酸将双环戊二烯环氧化,制备了环氧树脂二氧化双环戊二烯。通过收率和熔点测定研究了双环戊二烯的纯度、H2O2的浓度、双氧水与醋酸酐的配比、环氧化温度和中和水洗条件对产物性能的影响。结果表明,采用纯度91%以上的双环戊二烯为原料,其与醋酸酐及50%H2O2物质的量比为1∶3∶3.5,醋酸钠与醋酸酐质量比为1∶10,反应温度(25±5)℃,滴加双氧水0.5 h,反应时间3 h制得的二氧化双环戊二烯收率稳定在80%左右,熔点186℃以上。The epoxy resin dicyclopentadiene dioxide was synthesised by epoxidation of dicycloperntadiene using peracetic acid. The effects of dicyclopentadiene purity,concentration of H2O2,ratio of hydrogen peroxide to acetic anhydride,epoxidation temperature and washing conditions on the properties of the product were investigated by the determination of yield and melting point.The results showed that the dicyclopentadien dioxide yield was stable at 80% and the melting point was above 186 ℃ under the condition as followed:dicyclopentadiene as raw material,purity above 91%,molar ratio of dicyclopentadiene to acetic anhydride to 50% H2O21∶3∶3.5,mas ratio of sodium acetate to acetic anhydride 1∶10,reaction temperature(25±5)℃,adding hydrogen peroxide time 0.5 h and reaction time 3 h.
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