AM/PF microspheres with multi-crosslinking structure, preparation method and application thereof

The invention discloses an AM/PF microsphere with a multi-crosslinking structure, a preparation method and application thereof, and belongs to the technical field of oilfield chemistry. The AM/PF microsphere with the multi-crosslinking structure is prepared from the following raw materials: an acrylamide/water-soluble phenolic resin microsphere and a cross-linking agent, and the mass ratio of theacrylamide/water-soluble phenolic resin microsphere to the cross-linking agent is 0.02-50:1. The AM/PF microsphere with the multi-crosslinking structure disclosed by the invention has very good temperature resistance and swelling property. Experimental results show that the AM/PF microsphere with the multi-crosslinking structure can stably exist for 45 days or longer under an aerobic condition of150DEG C, and can stably exist for more than 300 days under the anaerobic condition of 150DEG C. 本发明公开了一种具有多重交联结构的AM/PF微球及其制备方法和应用，属于油田化学技术领域。本发明的具有多重交联结构的AM/PF微球，由包括如下组分的原料制备得到：丙烯酰胺/水溶性酚醛树脂微球和交联剂，所述丙烯酰胺/水溶性酚醛树脂微球和交联剂的质量比为0.02