乙烯一醋酸乙烯醋的结构与降凝性能的关系

doi:10.3863/j.issn.1000-2634.2006.02.019

西南石油大学学报(自然科学版) ›› 2006, Vol. 28 ›› Issue (2): 71-74.DOI: 10.3863/j.issn.1000-2634.2006.02.019

乙烯一醋酸乙烯醋的结构与降凝性能的关系

蒋庆哲¹ 岳国² 宋昭峥¹ 柯明¹ 赵密福³

(1.中国石油大学重质油国家重点实验室，北京昌平102249;2.北京神化集团;3.中石化胜利油田)

收稿日期:2005-02-28 修回日期:1900-01-01 出版日期:2006-04-20 发布日期:2006-04-20
通讯作者: 蒋庆哲

RELATION BETWEEN STRUCTURE OF ETHENE.VINYLACETATE COPOLYMERS AND THEIR POUR POINT DEPRESSION

JIANG Qing-zhe¹ YUE Guo² SONG Zhao-zheng ¹.

(University of Petroleum，Beijing 102249，China)

Received:2005-02-28 Revised:1900-01-01 Online:2006-04-20 Published:2006-04-20
Contact: JIANG Qing-zhe

摘要/Abstract

摘要： 用溶液聚合法合成了各种结构的乙烯一醋酸乙烯醋共聚物(EVA)降凝剂，考察了它们的结晶性质、溶解性质和降凝效果。由实验得到以下结论:EVA降凝剂的CH:链上只有远离极性基团的碳原子能够参与结晶。当参与结晶的碳原子数约等于原油中蜡的平均碳原子数的3/4时，EVA降凝剂的降凝效果最好。EVA降凝剂的相对分子质量分布的宽窄对降凝效果的影响不大，平均相对分子质量在1.2xl04时降凝效果较好。

关键词: 乙烯-醋酸乙烯醋共聚物, 相叶分子质量分布, 降凝效果

Abstract: All kinds of molecule structures of the ethylene-vinyl ace-fate copolymers(EVA) have been synthesized by solution poly-merization. Their crystallinity, solubility and the effect of lower-ing pour point of crude have been studied. Results show that on-1y carbon atoms far from polar group of EVA take part in crystal-
lizing. When carbon number of alkyl chain of EVA, which takes part in crystallizing, is about equal to tbree fourths of average carbon number of wax, the effect of EVA pour point depressants is best. When the average relative molecular mass of EVA is 1 .2 x 10"，the effect of EVA is best. The distribution of relative molecular mass has little influence.

Key words: ethylene- vinyl acetate copolymer, distribution of relative molecular mass, pour point depression effect

中图分类号:

TE772

蒋庆哲岳国宋昭峥柯明赵密福. 乙烯一醋酸乙烯醋的结构与降凝性能的关系[J]. 西南石油大学学报(自然科学版), 2006, 28(2): 71-74.

JIANG Qing-zhe YUE Guo SONG Zhao-zheng .. RELATION BETWEEN STRUCTURE OF ETHENE.VINYLACETATE COPOLYMERS AND THEIR POUR POINT DEPRESSION[J]. 西南石油大学学报(自然科学版), 2006, 28(2): 71-74.

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[2]	蒋庆哲宋昭峥葛际江柯明赵密福. 原油组分与降凝剂相互作用[J]. 西南石油大学学报(自然科学版), 2006, 28(1): 59-64.

乙烯一醋酸乙烯醋的结构与降凝性能的关系

RELATION BETWEEN STRUCTURE OF ETHENE.VINYLACETATE COPOLYMERS AND THEIR POUR POINT DEPRESSION

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