CAJ | 학술논문

采用均匀实验设计,研究了硬脂酸和乙二醇酯化反应的合成工艺.以对甲苯磺酸和磷酸为复合酸催化剂,用量均为0.8%,硬脂酸∶乙二醇=1∶1.4(摩尔比),反应温度120 ℃条件下,硬脂酸的转化率为93.54%,合成的乙二醇硬脂酸酯珠光效应强,光泽较好.在表面活性剂体系粘度为200～240 mPa·s条件下,珠光剂的用量为1.0%～2.0%,搅拌速度控制在400～600 r/min,室温自然冷却得到的样品珠光光泽最优.
채용균균실험설계,연구료경지산화을이순지화반응적합성공예.이대갑분광산화린산위복합산최화제,용량균위0.8%,경지산∶을이순=1∶1.4(마이비),반응온도120 ℃조건하,경지산적전화솔위93.54%,합성적을이순경지산지주광효응강,광택교호.재표면활성제체계점도위200～240 mPa·s조건하,주광제적용량위1.0%～2.0%,교반속도공제재400～600 r/min,실온자연냉각득도적양품주광광택최우.
The synthesis technology of the esterification of stearic acid and glycol has been studied by using uniform experimental design.P-Toluence sulphonic acid and phosphoric acid has been used as the catalyst.The optimum process parameters have been obtained.The ratio of stearic acid to glycol is 1 ∶ 1.4(mol ∶ mol),the dose of the catalyst are both 0.8%.The reaction temperature is 120 ℃.Under the above condition,the conversation of stearic acid has been reached 93.54%.The pearlescent effect of glycol stearate is strong and displays a gloss appearance.For improving the pearlescent effect,proper modulating process has been studied.The dose of pearling agent is 1%～2% stirring speed is about 400～600 r/min,viscosity of surfactant system is 200～240 mPa · s,and cooling under room temperature can give a best pearlescent effect.