二月桂酸硫代二甘醇酯的合成及其在聚丙烯中抗氧化性能研究

黄敏 蒋达洪

引用本文: 黄敏, 蒋达洪. 二月桂酸硫代二甘醇酯的合成及其在聚丙烯中抗氧化性能研究[J]. 化学通报, 2016, 79(1): 37-42. shu
Citation:  Huang Min, Jiang Dahong. Preparation of Dilauric Acid Thiodiglycol Ester and Evaluation of Its Antioxidant Capacity in Polypropylene Resin[J]. Chemistry, 2016, 79(1): 37-42. shu

二月桂酸硫代二甘醇酯的合成及其在聚丙烯中抗氧化性能研究

    通讯作者: 蒋达洪,博士,副教授,E-mail:jiangdh03@163.com
  • 基金项目:

    茂名市科技计划项目(201328) 

    广东省科技计划项目(2014B010108017)资助 

摘要: 以硫代二甘醇和月桂酸为原料,选用对甲苯磺酸为催化剂、二甲苯为带水剂,合成了抗氧剂二月桂酸硫代二甘醇酯。适宜工艺条件为:反应温度140℃,醇酸摩尔比为2:1.5,催化剂用量为月桂酸质量的2.0%。将产物应用于聚丙烯中,与商品化的抗氧化剂相比具有良好的抗氧化性能。结果表明,添加二月桂酸硫代二甘醇酯后,聚丙烯的熔体流动速率从5.36g·10min-1降低到3.59g·10min-1;断裂伸长率和冲击强度分别达到112.2%和121.0kJ·m-2。当与商品化抗氧化剂168或1010混合使用时,抗氧化性能显著增加:与168混合时,熔体流动速度、拉伸强度、断裂伸长率和冲击强度分别达3.28g·10min-1、40.2MPa、140.8%和124.2kJ·m-2;与1010混合时,熔体流动速度达3.56g·10min-1

English

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  • 收稿日期:  2015-04-08
  • 网络出版日期:  2015-07-28
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