文献类型：期刊文献

中文题名：EBM的合成及其在PVC中热稳定性研究

英文题名：Study on Synthesis of Eleostearoyl-Benzoyl Methane and Its Thermal Stability Applied for PVC

作者：汪梅[1] 李梅[1] 夏建陵[1,2] 李守海[1] 杨雪娟[1]

第一作者：汪梅

机构：[1]中国林业科学研究院林产化学工业研究所生物质化学利用国家工程实验室,国家林业局林产化学工程重点开放性实验室,江苏省生物质能源与材料重点实验室,南京210042;[2]中国林业科学研究院林业新技术研究所,北京100091

年份：2013

卷号：41

期号：10

起止页码：96-100

中文期刊名：工程塑料应用

外文期刊名：Engineering Plastics Application

收录：CSTPCD;;北大核心:【北大核心2011】；CSCD:【CSCD2013_2014】；

基金：“十二五”国家科技支撑计划资助项目(2012BAD32B03);中国林业科学研究院中央级公益性科研院所基本科研业务费专项(CAFYBB2012047)

语种：中文

中文关键词：热稳定剂;桐酸甲酯;苯乙酮;正交试验法

外文关键词：thermal stabilizer ; methyl eleostearate ; hypnone ; orthogonal experiment

分类号：TQ325.1

摘要：以桐酸甲酯和苯乙酮为原料,甲醇钠为催化剂,经克莱森反应合成了桐油酰苯甲酰甲烷(EBM)。通过傅立叶变换红外光谱仪和气质联用分析对EBM进行结构表征;利用气相色谱定量,探讨了物料配比、反应温度、反应时间、催化剂用量等因素对EBM收率的影响;利用L9(34)正交试验确定了EBM的最佳合成条件:桐酸甲酯与苯乙酮物质的量之比为1.2∶1,反应温度110℃,催化剂用量为苯乙酮质量的0.6%,反应时间4 h。通过刚果红试验和热老化烘箱法考察了EBM的添加量对PVC热稳定性的影响。结果表明,加入适量EBM可有效改善PVC制品的初期着色性,但并未提高其长期热稳定性。
Eleostearoyl-benzoyl methane（EBM） were prepared by claisen reaction of methyl eleostearate and hypnone as raw materials, using the sodium methoxide as catalyst. Its structure was confirmed by FTIR and GC-MS. The effect of material proportion, reaction temperature, reaction time and catalyst dosage on the yield of EBM was tested by gas chromatographic quantitative. The optimal reaction conditions indicated by Lg（34）orthogonal experiment were as follows ： n（methyl eleostearate） ： n（hypnone）=1.2 ： 1, with 0.6% by weight of hypnone used as catalyst dosage, reaction temperature maintained at 110 ℃ for 4 h. Effect of contents of EBM on heat stability of PVC was tested by means of the Congo-red test and heat aging test methods. The results show that adding EBM can effectively improve the initial coloring of PVC, but its long-term thermal stability would not be improved.