国家/地区 中国（3）
IPC部 C（3）
IPC大类 C09（3）
IPC小类 C09K（3）
IPC
发明人 ZHAO Z（3）
公开年 2023（3）
申请年 2021（3）
专利权人 CHINA NAT PE.（2）

Preparing magnetic fluorescent graphene, involves grinding graphite flakes and stainless steel needles magnetically, oxidizing with concentrated nitric acid and concentrated sulfuric acid, then ultrasonicating, calcining, dissolving in deionized water, suction filtering, dialyzing, and freeze-drying.

SONG Z, LI J, LIU Y, ZHAO Z, ZHANG B

Polymer oil-based crosslinking curing plugging agent for drilling fluid, comprises modified epoxy resin, curing agent, curing regulator and reinforcing agent.

LIU Z, ZHANG J, ZHAO Z, ZHANG K, LI M, DENG Z, HE J, XIE X, CHENG K

Polymer-based elastomer plugging agent for drilling fluid, comprises polymer elastomer matrix material, reinforced polymer elastomer material, reinforcing material, functional filler and initiator which is photo or thermal initiator.

NIE Q, XIE X, ZHANG K, XIAO F, LI M, WANG M, DENG Z, ZHAO Z, CHENG K