高环氧值环氧棉籽油的合成研究

摘要

The effect of the important factors on the epoxy value,such as the amounts of hydrogen perox-ide and catalyst,the reaction temperature and time,were investigated by the L16 (44 )orthogonal experi-ments.The technics were optimized.The results showed that the epoxy value of the product could reach 6.20% with the acid value 1.496 mg NaOH/g and the iodine value 2.58 g/100 g under the conditions of 100 g cottonseed oil,0.8 g catalyst and 130 mL hydrogen peroxide under 60 ℃ for 7 h.The products were characterized by infrared and nuclear magnetic resonance to confirm that the cottonseed oil was ep-oxidized to epoxidized cottonseed oil.%通过 L16（44）正交实验考察了双氧水用量、催化剂用量、反应时间和反应温度对环氧棉籽油环氧值的影响，优化合成工艺。结果表明，100 g 棉籽油，催化剂用量0．8 g，双氧水用量130 mL，反应温度为60℃，反应时间为7 h，产品的环氧值为6．20％，酸值为1．496 mg NaOH／g，碘值为2．58 g／100 g。所得制品通过红外和核磁共振表征，确证棉籽油被环氧化生成环氧棉籽油。