林产化学与工业Issue(4)：41-47,7.DOI:10.3969/j.issn.0253-2417.2015.04.007
环氧脱水蓖麻油的制备工艺研究
Synthesis Process of Epoxidized Dehydrated Castor Oil
摘要
Abstract
Dehydrated castor oil( DCO) was firstly prepared by using castor oil( CTO) as raw material via dehydration reaction, and epoxidized dehydrated castor oil( EDCO) was synthesized using phosphoric acid as catalyst and acetic acid peroxide as the oxidant by epoxidation reaction afterwards. The influences of different parameters on the epoxy value of EDCO were investigated through single factor and orthogonal experiments. The results indicated that the optimal preparation conditions of EDCO were 3. 5 h reaction time, 30℃ reaction temperature, 5. 5∶1 molar ratio of peracetic acid to DCO and 0. 5% phosphoric acid dosage. The epoxy value of EDCO could be up to 4. 82% under these conditions. In addition, the chemical structures of CTO, DCO, and EDCO were characterized by FT-IR and 1H NMR . It was confirmed that the C—C double bonds in EDCO almost disappeared and the epoxy bonds were formed during the epoxidation. The properties of the products were also studied by viscosity measurement and thermogravimetric analysis( TG) . Viscosity measurement showed that the viscosities of CTO, DCO, and EDCO were 1 100. 0, 299. 5 and 1 896. 0 mPa·s, respectively. TG analysis demonstrated that the descending order of thermal stability of the products was EDCO>DCO>CTO.关键词
过氧乙酸/环氧化/环氧脱水蓖麻油Key words
peracetic acid/epoxidation/epoxidized dehydrated castor oil分类
化学化工引用本文复制引用
..环氧脱水蓖麻油的制备工艺研究[J].林产化学与工业,2015,(4):41-47,7.基金项目
国家自然科学基金资助项目(31200446) （31200446）
江苏省自然科学基金资助项目(BK2012063) （BK2012063）
中国林科院林业新技术所基本科研业务费专项资金(CAFINT2012C05) （CAFINT2012C05）
