摘要
为获得耐温性能良好的疏水缔合聚合物,以丙烯酰胺(AM)、对苯乙烯磺酸钠(SSS)、N,N-二甲基十八烷基烯丙基氯化铵(DMAAC-18)为原料制备了一种两性疏水缔合聚合物AHAPAM。通过测定AHAPAM溶液的黏度优化了AHAPAM的制备条件,研究了AHAPAM的耐温抗盐性能。结果表明,在DMAAC-18和SSS摩尔分数分别为1.5%和0.6%、单体质量分数25%、引发剂((NH4)2S2O8与Na HSO3摩尔比1.2∶1)加量0.2%、反应温度45℃、p H值为9、反应时间6 h的最佳合成条件下制得的AHAPAM的临界缔合浓度值为0.19%。AHAPAM浓度高于临界缔合浓度时,聚合物疏水链间以分子间缔合为主并形成空间网状结构。AHAPAM的抗温性能良好,0.50%AHAPAM溶液在120℃、170 s^(-1)下剪切1.4 h的黏度约为90 m Pa·s。AHAPAM的抗盐性能较好,在氯化钠和氯化钙加量为18%和15%时,AHAPAM溶液的黏度约为330 m Pa·s。
In order to obtain hydrophobically associating polymer with good temperature resistance, an hydrophobically associating amphiphilic polymer AHAPAM was synthesized by using acrylamide （AM） , sodium p-styrenesulfonate （SSS） , N, N-dimethyl octadecyl allyl ammonium chloride （DMAAC-18）. The preparation condition of AHAPAM was optimized by measuring the viscosity of AHAPAM solution, and the temperature resistance and salt tolerance of AHAPAM were studied. The results showed that the critical associative concentration of AHAFAM was 0.19% under optimum synthesis condition with 1.5% mole fraction of D MAAC=18,0.6% mole fraction of SSS, 25% monomer mass fraction, 0.2% initiator （a combination of （NI-L）2S2O8 and NaI-ISO3 in mole ratio 1.2： 1 ）, 45 ℃ reaction temperature, 9 pH value, and 6 h reaction time. When the concentration of AHAFAM was higher than the critical associative concentration, the intermolecular association between hydrophobic chains of AHAPAIVl was predominant and a spatial network structure was formed. The viscosity of 0.5% AHAFAM solution was about 90 mPa. s at 120℃ and 170 s^-1 shearing for 1.4 h, showing good temperature resistance. The viscosity of AHAPAM solution was about 330 mPa· s when the dosage of sodium chloride and calcium chloride was 18% and 15% respectively, indicating good salt tolerance.
作者
黄志宇
李鹏飞
饶政
何帆
全红平
李卓柯
HUANG Zhiyu;LI Pengfei;RAO Zheng;HE Fan;QUAN Hongping;LI Zhuoke(College of Chemistry and Chemical Engineering,Southwest Petroleum University,Ctuengdu,Sichuan 610500,P R of China;Province Key Laboratory of Applied Chemistry for Oil and Gas Field,Southwest Petroleum University,Chengdu,Sichuan 610500,P R of China;Shixi Oi~eld Operation Area,Xinjiang Oilfield Company,Karamay,Xinjiang 834000,P R of China;Natural Gas Research Institute of Southwest Oil and Gas Field Company,PetroChina,Cheng du,Sichuan 610213,P R of China)
出处
《油田化学》
CAS
CSCD
北大核心
2018年第2期289-295,共7页
Oilfield Chemistry
关键词
疏水缔合聚合物
制备
耐温性
抗盐性
hydrophobicaUy associating polymer
preparation
temperature resistance
salt tolerance
