Page 208 - 精细化工2019年第9期
P. 208

第 36 卷第 9 期                             精   细   化   工                                  Vol.36, No.9
             201 9 年 9 月                             FINE CHEMICALS                                 Sept.    2019


              油田化学品与油品添加剂
                        耐盐型疏水缔合聚合物的制备及流变性能



                                                                        3
                                                                                                   4
                                                           3
                     高进浩      1,2 ,张光华      1,2* ,程   芳 ,赵燕红 ,王   磊                  1,2 ,马少云
                 (1.  陕西科技大学  化学与化工学院,陕西  西安  710021;2.  陕西省轻化工助剂重点实验室,陕西  西安
                 710021;3.  西安长庆化工集团有限公司,陕西  西安    710018;4.  上海荆马材料科技有限公司,上海
                 201718)

                 摘要:采用丙烯酰胺(AM)、丙烯酸(AA)、2-丙烯酰胺-2-甲基丙烷磺酸(AMPS)和水溶性阴离子疏水单体
                 S-18 制备了新型耐盐疏水缔合聚合物 S-18HPAM。聚合放热测试表明:疏水单体含量的增加导致放热时间的延
                 长,更有利于疏水结构的形成。微观结构测试表明:聚合物具有复杂的网状结构,在 NaCl 溶液中网状结构更为
                 明显。流变测试结果表明:聚合物在盐溶液中具有良好的耐温和抗剪切性能。聚合物质量分数为 0.3%(基于溶
                                                –1
                 液总质量),温度 90  ℃,剪切速率 170 s 和 NaCl 质量浓度 20000 mg/L 条件下,剪切后表观黏度大于 70 mPa∙s。
                 在总矿化度 20000 mg/L 模拟地下水条件下,S-18HPAM 质量分数为 0.3%,剪切后黏度为 70 mPa∙s,加入质量分
                 数 0.5%表面活性剂十二烷基硫酸钠(SDS)后,黏度增加到 170  mPa∙s。储能模量 G'随着聚合物质量分数的增
                 加而增大,体系弹性增强,同时疏水结构单元数量增加,形成致密的空间网络结构。
                 关键词:疏水缔合;黏弹性;流变性能;耐盐;油田化学品
                 中图分类号:TE39;TE348      文献标识码:A      文章编号:1003-5214 (2019) 09-1936-07


                            Synthesis and Rheological Properties of a Salt-resistant

                                        Hydrophobic Association Polymer

                                               1,2
                                                                                    3
                                    GAO Jin-hao , ZHANG Guang-hua   1,2* , CHENG Fang ,
                                                                  1,2
                                                                                 4
                                                      3
                                       ZHAO Yan-hong , WANG Lei , MA Shao-yun
                 (1.  College of Chemistry and Chemical Engineering, Shaanxi University of  Science  & Technology, Xi'an  710021,
                 Shaanxi, China;  2. Shaanxi Key Laboratory of Chemical Additives  for Industry, Shaanxi University of Science  &
                 Technology, Xi'an  710021, Shaanxi, China;  3. Xi'an Changqing Chemical Group Co., LTD., Xi'an  710018,  Shaanxi,
                 China; 4. Shanghai Jingma Chemical Technology Co., Ltd., Shanghai 201718, China)
                 Abstract:  A  novel  salt-resistant  hydrophobic  association  polymer  S-18HPAM  was  prepared  from
                 acrylamide  (AM),  acrylic  acid  (AA),  2-acrylamide-2-methyl  propane  sulfonic  acid  (AMPS)  and
                 hydrophobic monomer S-18. The results showed that the increase of hydrophobic monomer content led to
                 the extension of exothermic time, which was more conductive to the formation of hydrophobic structure.
                 Microstructure  test  demonstrated  that  the  polymer  had  complex  network structures, which was more
                 obvious  in  NaCl  solution.  Rheological  test  results  indicated  that  the  polymer  had  good  temperature
                 resistance and shear resistance in NaCl solution. Moreover, the apparent viscosity of the polymer solution
                 remained greater than 70 mPa·s under the conditions of addition amount of S-18HPAM 0.3% (based on the
                                                                     −1
                 total mass of the solution), temperature 90  ℃, shear rate 170 s  and mass concentration of NaCl solution
                 20000 mg/L. When the total salinity of simulated ground water was 20000 mg/L and the addition amount of
                 S-18HPAM was 0.3%, the viscosity of solution after shearing was 70 mPa·s. While the viscosity of solution
                 increased to 170 mPa·s after the addition of 0.5% surfactant sodium dodecyl sulfate (SDS). The storage
                 modulus  (Gʹ) increased with  the increase  of  polymer  mass  fraction,  and  the  system  elasticity  increased.
                 Meanwhile, the increase in the number of hydrophobic micro-zones was conductive to the formation of
                 dense spatial network structures.


                 收稿日期:2019-03-22;  定用日期:2019-06-06; DOI: 10.13550/j.jxhg.20190229
                 基金项目:国家自然科学基金(31670596)
                 作者简介:高进浩(1989—),男,博士生,E-mail:gaojinhao81@163.com。联系人:张光华(1962—),男,教授,E-mail:zhanggh@sust.edu.cn。
   203   204   205   206   207   208   209   210   211   212   213