Supercritical carbon dioxide oil-in-oil emulsion thickener as well as preparation method and application thereof

• Main Authors: WANG LUSHAN, JIN YANXIN, BO CHUNHUI, LIU WEI, WANG TAO, JIANG HUI, XU PENG, WANG HAO, ZHANG GUANGYAN
• Format: Patent
• Language: Chinese; English
• Published: 11.01.2017
• Subjects: ADHESIVES; CHEMISTRY; CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION ORPROCESSING OF GOODS; COMPOSITIONS BASED THEREON; DYES; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS; MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; ORGANIC MACROMOLECULAR COMPOUNDS; PAINTS; POLISHES; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE; THEIR PREPARATION OR CHEMICAL WORKING-UP

The invention provides a supercritical carbon dioxide oil-in-oil emulsion thickener as well as a preparation method and application thereof. The preparation method comprises the following steps: (a) putting vinyl-terminated silicone oil, hexafluorobutyl acrylate, butyl acrylate, divinyl benzene, an initiator, an emulsifier, cyclohexane and 65-75% of ethylene glycol in a container, and performing high-speed shearing for 25-35 minutes to obtain a pre-emulsion; (b) adding the remaining ethylene glycol and 4-6% of pre-emulsion of the step (a) into a drying three-mouth flask equipped with a stirrer, a condenser and a dropping funnel, heating to 50-80 DEG C while stirring, and preserving heat for 25-40 minutes; (c) dropwise adding the remaining pre-emulsion, and reacting for 5-25h; and (d) cooling to room temperature to obtain the product. The supercritical carbon dioxide oil-in-oil emulsion thickener has the characteristics of fast dissolution in SC-CO2, relatively low cost, good SC-CO2 thickening effect and the l