Liu, Bin; Wang, Yanling; Liang, Lei; Zeng, Yijin published an article in 2021, the title of the article was Achieving solubility alteration with functionalized polydimethylsiloxane for improving the viscosity of supercritical CO2 fracturing fluids.Recommanded Product: Oxybis(ethane-2,1-diyl) bis(2-methylacrylate) And the article contains the following content:
Supercritical carbon dioxide (SC-CO2) fracturing technol. has the characteristics of a large amount of fixed CO2 and anhydrous fracturing. It has great application potential for developing unconventional oil and gas resources and mitigating the greenhouse effect. However, the low viscosity of SC-CO2 limits the development of this technol. In this work, HS series thickeners were prepared via a ring-opening polymerization and hydrosilylation reaction by a mol. simulation-aided design method. The simulation results of cohesive energy d., interaction energy, and radial distribution function are consistent with the visualization exptl. results, which proves that HS (hyperbranched siloxane) series thickeners have excellent solubility in SC-CO2. HS-3 is the best thickener in the HS series. At 305.15 K and 10 MPa, 5 wt% HS-3 (60 s-1) increases the viscosity of SC-CO2 by 151 times, and the apparent viscosity is 3.024 mPa s. The apparent viscosity of SC-CO2 was pos. correlated with the pressure and concentration but neg. correlated with the temperature and shear rate. The results indicate that it is feasible to introduce an aliphatic group and polysiloxane into a SC-CO2 thickener by hydrosilylation. The experimental process involved the reaction of Oxybis(ethane-2,1-diyl) bis(2-methylacrylate)(cas: 2358-84-1).Recommanded Product: Oxybis(ethane-2,1-diyl) bis(2-methylacrylate)
The Article related to polydimethylsiloxane carbon dioxide ring opening polymerization hydrosilylation solubility, Fossil Fuels, Derivatives, and Related Products: Other (Coal and Petroleum) and other aspects.Recommanded Product: Oxybis(ethane-2,1-diyl) bis(2-methylacrylate)
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