对氨基水杨酸铈对天然橡胶胶料硫化特性的影响  

Effect of Cerium p-aminosalicylate on Vulcanization Characteristics of NR Compounds

作　　者：马瑞峰 徐思航 刘永刚 郝伟 柳召刚[1,2,3] 胡艳宏 吴锦绣 杜桂芳[1,2,3] 贾培杰[1,2,3] MA Ruifeng;XU Sihang;LIU Yonggang;HAO Wei;LIU Zhaogang;HU Yanhong;WU Jinxiu;DU Guifang;JIA Peijie(School of Rare Earth Industry,Inner Mongolia University of Science and Technology,Baotou 014010,China;Key Laboratory of Green Extraction and Efficient Utilization of Light Rare Earth Resources,Baotou 014010,China;Baotou Key Laboratory for Rare Earth Hydrometallurgy and Light Rare Earth Applications,Inner Mongolia Autonomous Region,Baotou 014010,China;School of Materials Science and Engineering,Inner Mongolia University of Science and Technology,Baotou 014010,China)

机构地区：[1]内蒙古科技大学稀土产业学院,内蒙古包头014010 [2]轻稀土资源绿色提取与高效利用教育部重点实验室,内蒙古包头014010 [3]内蒙古自治区稀土湿法冶金与轻稀土应用重点实验室,内蒙古包头014010 [4]内蒙古科技大学材料科学与工程学院,内蒙古包头014010

出　　处：《橡胶工业》2025年第5期351-358,共8页China Rubber Industry

基　　金：内蒙古自治区自然科学基金资助项目(2022LHMS05022)。

摘　　要：以氯化铈和对氨基水杨酸钠为原料合成新型环保促进剂对氨基水杨酸铈(PAS-Ce),通过傅里叶变换红外光谱分析、热分析和元素分析确定PAS-Ce的分子式为CeC_(7)H_(6)NO_(33)·H_(2)O。使用无转子硫化仪和平衡溶胀法研究PAS-Ce对天然橡胶胶料硫化特性的影响,试验结果表明:随着PAS-Ce用量的增大,胶料的t_(90)先缩短后延长;当PAS-Ce用量为1.2份时,胶料的t_(90)最短,硫化胶的交联密度最大。动力学参数计算结果表明:随着PAS-Ce用量的增大,交联前驱体的反应活性增强,胶料的交联反应活化能先减小再增大;当PAS-Ce用量为1.2份时,胶料的交联反应活化能最低。A novel environmentally friendly accelerator cerium p-aminosalicylate(PAS-Ce)was synthesized using cerium chloride and sodium p-aminosalicylate as raw materials,and its molecular formula was determined to be CeC_(7)H_(6)NO_(33)·H_(2)O through Fourier transform infrared spectroscopy analysis,thermal analysis and elemental analysis.The rotorless rheometer and equilibrium swelling method were used to study the effect of PAS-Ce on the vulcanization characteristics of natural rubber(NR)compounds.The experimental results showed that with the increase of PAS-Ce amount,the t_(90)of the compound was first shortened and then prolonged.When the PAS-Ce amount was 1.2 phr,the t_(90)of the compound was the shortest,and the crosslinking density of the vulcanizate was the largest.The calculation results of kinetic parameters showed that with the increase of PAS-Ce amount,the reactivity of the crosslinking precursor was enhanced,while the crosslinking reaction activation energy of the compound first decreased and then increased.When the PAS-Ce amount was 1.2 phr,the activation energy of the crosslinking reaction of the compound was the lowest.

关 键 词：对氨基水杨酸铈 天然橡胶 硫化促进 硫化特性 交联密度 活化能 

分 类 号：TQ330.385[化学工程—橡胶工业] TQ330.13