油酸二聚甘油酯的合成及其对面巾纸的柔软、保湿性能  

Synthesis of dipolyglycerol oleate and study on its influence to the softness and moisture retention properties of facial tissue paper

作　　者：王婉蓉 韩雪 李瑞铭 李雷声 朱新宝[1] WANG Wanrong;HAN Xue;LI Ruiming;LI Leisheng;ZHU Xinbao(College of Chemical Engineering,Nanjing Forestry University,Nanjing 210037,Jiangsu,China;Zhejiang Xinyuan Industrial Co.,Ltd.,Tonglu 311500,Zhejiang,China)

机构地区：[1]南京林业大学化学工程学院,江苏南京210037 [2]浙江新远实业有限公司,浙江桐庐311500

出　　处：《精细化工》2022年第6期1270-1276,共7页Fine Chemicals

基　　金：“十三五”国家重点研发计划项目子课题(2018YFD0600402)。

摘　　要：以油酸缩水甘油酯和甘油为原料,在固体酸催化剂(活性炭负载硫酸)作用下,通过开环反应制得了油酸二聚甘油酯,并对合成条件进行优化。通过FTIR和1HNMR对产物结构进行了表征,并将其用作柔软保湿剂涂覆到面巾纸上,考察其对面巾纸柔软度、保水率、抗张指数及亲水性的影响。得到的最佳合成条件为:n(油酸缩水甘油酯)∶n(甘油)=1∶5,催化剂用量为反应物总质量的6‰,反应温度70℃、反应时间4 h。结果表明,油酸二聚甘油酯具有优异的柔软保湿性能,在油酸二聚甘油酯添加量为甘油水溶液质量的0.25%时,面巾纸的柔软度[(49±2)m N]优于市面上有机硅柔软剂(氨基硅油)改性的面巾纸柔软度[(68±2)mN],这是由于大分子柔软剂能够对纤维表面的缺陷进行修复,从而使纤维表面平整度提升。且在温度为30℃、湿度为60%时,油酸二聚甘油酯型柔软保湿剂涂覆后的面巾纸的保水率(98.2%±0.2%)也略高于有机硅柔软剂涂覆后的面巾纸的保水率(96.5%±0.2%)。Dipolyglycerol oleate was prepared by ring-opening reaction of glycidyl oleate with glycerol in the presence of solid acid catalyst-sulfuric acid supported on activated carbon, optimize the synthesis conditions, and characterized by FTIR and 1HNMR. Then, as a softener and moisturizer, its effects on the softness, water-retention rate, tensile index and hydrophilcity of facial tissue paper were studied. The optimal synthesis conditions were obtained as follows: n(glycidyl oleate)∶n(glycerol) = 1∶5, the catalyst dosage was 6‰ of the total mass of the reactants, the reaction temperature was 70 ℃, and the reaction time was 4 h.The results indicated that facial tissue paper, coated with dipolyglycerol oleate in glycerin aqueous emulsion by a mass ratio of 0.25%, demonstrated better softness than that coated with silicone softening(amino silicone oil) agent on the market with a value of(49±2) mN versus(68±2) mN. This could be attributed to the fiber surface flatness improvement because of the surface defect repairment by macromolecular softener. Moreover, it was found that the water-retention rate(98.2%±0.2%) of facial tissue paper coated with dipolyglycerol oleate was slightly higher than that of ones coated with silicone softening agent(96.5%±0.2%) at 30 ℃ and a humidity of 60%. All these data proved that dipolyglycerol oleate had excellent softening and moisturizing capacities.

关 键 词：油酸二聚甘油酯 柔软剂 保湿剂 面巾纸 造纸助剂 造纸化学品 

分 类 号：TQ645.5[化学工程—精细化工]