文献类型：期刊文献

中文题名：壳聚糖/丙烯酰胺微球的制备及性能研究

英文题名：Preparation and properties of chitosan/acrylamide microspheres

作者：宣雅妮[1];唐凡[2];吕伟[2];庄力齐[1];赵世成[1]

机构：[1]华东理工大学化工学院联合国家重点实验室-多相结构材料实验室,上海200237;[2]长庆油田公司油气工艺研究院,陕西西安710014

年份：2022

卷号：51

期号：9

起止页码：2527

中文期刊名：应用化工

外文期刊名：Applied Chemical Industry

收录：CSTPCD;;北大核心:【北大核心2020】；CSCD:【CSCD_E2021_2022】；

基金：国家自然科学基金(21878089)。

语种：中文

中文关键词：壳聚糖;堵水调剖;流变学;聚丙烯酰胺

外文关键词：chitosan;water plugging and profile control;rheology;polyacrylamide

摘要：以7#白油为油相,丙烯酰胺(AM)和2-丙烯酰胺-2-甲基丙磺酸(AMPS)为聚合单体,壳聚糖(CS)为交联剂,采用反相微乳液法制备了壳聚糖/聚丙烯酰胺CS/P(AM-AMPS)微球,通过绘制三元相图,确定了反相微乳液体系组成:油相为60.0%,水相为25.0%,乳化剂为15.0%,CS和引发剂用量分别为0.2%和0.3%。应用扫描电镜、透射电镜和Zeta纳米粒度仪表征微球形貌结构,研究了CS/P(AM-AMPS)微球的耐剪切性能和热稳定性。结果表明,微球呈现较为均匀的球形,平均粒径为100 nm左右,在多次剪切作用下,P(AM-AMPS)微球黏度仅能保持初始黏度的50%,而CS/P(AM-AMPS)微球黏度可以达到初始黏度的80%,其耐剪切性能更强;同时CS/P(AM-AMPS)微球具有良好的热稳定性,耐温可达200℃以上。
Chitosan/polyacrylamide CS/P(AM-AMPS)microspheres were prepared by reversed-phase microemulsion method using 7#mineral oil as oil phase,acrylamide(AM)and 2-acrylamido-2-methylpropane sulfonic acid(AMPS)as polymeric monomer and chitosan(CS)as crosslinking agent.Firstly,the composition of inverse microemulsion system was determined by drawing ternary phase diagram:oil phase was 60.0%,water phase is 25.0%,emulsifier was 15.0%.CS and initiator dosage were determined to be 0.2%and 0.3%.SEM,TEM and Zeta nano-size instrument were used to characterize the morphology and structure of the microspheres,the shear resistance and thermal stability of CS/P(AM-AMPS)microspheres were studied.The results showed that the microspheres were uniformly spherical with an average particle size of about 100 nm.The viscosity of P(AM-AMPS)microspheres can only maintain 50%of the initial viscosity,while the viscosity of CS/P(AM-AMPS)microspheres can reach 80%of the initial viscosity,the shear resistance of CS/P(AM-AMPS)microspheres is better.At the same time,CS/P(AM-AMPS)microspheres have good thermal stability,and the temperature can reach more than 200℃.