不同微结构交联聚合物微球耐温稳定性及变形性研究
详细信息 查看官网全文
- 英文论文题名：Research on Thermal Stability and Deformation Performance of Cross-Linked Polymer Microspheres with Different Microstructures
- 论文作者：王浩颐 ; 马艳青 ; 林梅钦 ; 董朝霞
- 英文论文作者：Haoyi Wang ; Yanqing Ma ; Meiqin Lin ; Zhaoxia Dong ; Enhanced Oil Recovery Institute ; China University of Petroleum
- 年：2016
- 作者机构：中国石油大学(北京)提高采收率研究院;
- 论文关键词：聚合物微球 ; 低温反相悬浮 ; 耐温 ; 溶胀 ; 变形性
- 会议召开时间：2016-07-01
- 会议录名称：中国化学会第30届学术年会摘要集-第三十一分会：胶体与界面化学
- 语种：中文
- 分类号：TE39
- 学会代码：ZGHY
- 会议名称：中国化学会第30届学术年会-第三十一分会 ; 胶体与界面化学
- 会议地点：中国辽宁大连
- 主办单位：中国化学会
- 学会名称：中国化学会
- 页数：1
- 文件大小：139k
- 原文格式：D
- 会议级别：全国
摘要
交联聚合物微球驱油技术是一项新兴的、主要用于提高高含水油田开发后期采收率的技术。聚合物微球的微观结构直接影响其膨胀性能,进而影响微球的耐温及变形特性。本文以丙烯酰胺(AM)为主体,加入耐温耐盐的单体如N-乙烯基吡咯烷酮(NVP)、2-丙烯酰胺基-2-甲基丙磺酸(AMPS),以及交联剂N-N'-亚甲基双丙烯酰胺(Bis-A)、N-羟甲基丙烯酰胺(NAM),采用低温反相悬浮聚合法,合成了3个系列具有不同微结构的聚合物微球。利用红外光谱分析仪(IR)、扫描电镜(SEM)、光学显微镜、激光粒度仪对其结构、形态大小及不同温度下溶胀性能进行表征;利用热重分析仪对其热稳定性进行研究;利用质构仪测其微球抗压强度和极限下压距离表征微球的变形性。结果表明,交联比不同,微球溶胀后的水化粒径不同;交联比越小,微球结构越松散,溶胀倍数越大,变形性增强。交联剂为Bis-A、交联比为0.25%时所制得的微球90℃下溶胀性能最佳,而且此时微球极限下压距离最大,变形性最好。
In the paper,Cross-linked polymer microspheres with different microstructures were synthesized from AM,2-acrylamido-2-methylpropanesulfonic acid(AMPS),N-Vinyl-2-pyrrolidone(NVP) and three kinds of the cross-linking agentby inverse suspension copolymerization in low temperature initiated by KPS.Infrared spectroscopy(IR)andscanning electron microscope(SEM),optical microscope,laser particle size instrument and thermo-gravimetric analyzer(TG) were used to characterize the particle size,morphology and structure,thermal properties of the cross-linked polymer microspheres.The gel strength and the maximum failure limit of cross-linked polymer microspheres were determined by texture analyzer.The experimental results show that the sizes of swollen microspheres were different due to different hydration cross-linked ratios.The smaller cross-linked ratio was,the looser the microsphere structure was,and the larger swelling multiple was.With the decrease of the cross-linked ratio,the soft degree of microsphere increased,and the deformability of microsphere enhanced.
In the paper,Cross-linked polymer microspheres with different microstructures were synthesized from AM,2-acrylamido-2-methylpropanesulfonic acid(AMPS),N-Vinyl-2-pyrrolidone(NVP) and three kinds of the cross-linking agentby inverse suspension copolymerization in low temperature initiated by KPS.Infrared spectroscopy(IR)andscanning electron microscope(SEM),optical microscope,laser particle size instrument and thermo-gravimetric analyzer(TG) were used to characterize the particle size,morphology and structure,thermal properties of the cross-linked polymer microspheres.The gel strength and the maximum failure limit of cross-linked polymer microspheres were determined by texture analyzer.The experimental results show that the sizes of swollen microspheres were different due to different hydration cross-linked ratios.The smaller cross-linked ratio was,the looser the microsphere structure was,and the larger swelling multiple was.With the decrease of the cross-linked ratio,the soft degree of microsphere increased,and the deformability of microsphere enhanced.
引文
[1]王涛,肖建洪等.聚合物微球的粒径影响因素及封堵特性[J].油气地质与采收率,2006,13(4):80-82.
[2]王文俊,刘永亮等.PAC与PAC/HPMC水凝胶的结构及溶胀规律研究[J].高分子通报,2010,7:91-96.
[2]王文俊,刘永亮等.PAC与PAC/HPMC水凝胶的结构及溶胀规律研究[J].高分子通报,2010,7:91-96.