文献类型：期刊文献

中文题名：2-EHA/VAC共聚物高效润滑油抗泡剂的合成与性能研究

英文题名：Synthesis and performance of 2-EHA/VAC copolymer super-antifoaming agent for lubricating oils

作者：吴玉[1];李少萍[1];常俊辉[1]

机构：[1]华东理工大学石油加工研究所,上海200237

年份：2014

卷号：34

期号：12

起止页码：92

中文期刊名：现代化工

外文期刊名：Modern Chemical Industry

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

语种：中文

中文关键词：非硅抗泡剂;润滑油;泡沫;相对分子质量;稳定性;丙烯酸异辛酯;乙酸乙烯酯

外文关键词：non-silicone antifoam agent ; lubricants ; foam ; molecular weight ; stability ; 2-ethylhexyl acrylate ;vinyl acetate

摘要：以丙烯酸异辛酯（2-EHA）、乙酸乙烯酯（VAC）为单体,过氧化苯甲酰（BPO）为引发剂,通过向甲苯溶剂中滴加混合单体合成了聚合物非硅抗泡剂.单因素考察实验表明,当n（2-EHA）∶n（VAC） =0.52∶0.48,引发剂质量为单体质量的0.2％,反应温度为80℃,反应时间为6h时,合成共聚物抗泡剂对润滑油抗泡效果最好.凝胶渗透色谱法（GPC）测定共聚物相对分子质量发现,数均相对分子质量在4.5 ＆#215;l04 ～6.0＆#215;104之间时,抗泡剂的性能最好.抗泡剂的抗泡性能对比实验结果表明,合成的非硅抗泡剂比氟改性聚硅氧烷和硅油抗泡剂有更好的抗泡稳定性.
Using 2-ethylhexyl acrylate and vinyl acetate as the raw material, benzoyl peroxide as the initiator, the 2- EHA/VAC copolymer is synthesized by random copolymerization in toluene. The effects of copolymerization reaction on antifoaming property are studied. The results show that the copolymer with good antifoaming performance can be obtained under the following conditions ： 0. 52 ： 0. 48 molar ratio of 2-EHA and VAC, 80℃ of the polymerization temperature, 6 hours of polymerization time and 0. 2% （ based on total monomers mass） of the dosage of initiator. GPC result shows that copolymer with the number-average molecular from 4. 5 × 104 to 6. 0 × 104 have a good antifoaming performance. The antifoaming test shows that non-silicone antifoam agent has a more stable antifoam performance than fluorosilicone antifoam agent and silicone antifoam agent.