国家/地区 中国（3）
IPC部 D（3）
IPC大类 D01（3）
IPC小类 D01F（3）
IPC
发明人 LIU S（3）
公开年 2023（3）
申请年 2022（3）
专利权人

Hollow carbon fiber tube, formed by winding composite material body, composite material body comprising multiple carbon fiber prepreg layers; and one graphene-containing resin layer, where each of graphene-containing resin layer is disposed between two adjacent carbon fiber prepreg layers.

LI M, LIOU S, LIU S

Preparing graphene oxide material comprises soaking graphene oxide fiber in ammonium salt solution, stretching, maintaining graphene oxide layer arranged straight and drying to obtain wrinkle-removing graphene oxide fiber.

LIU S, WANG B, XU Z, GAO C, SHI H, GAO W

Dental alginate impression material is prepared by mixing alginate, gypsum, retarder, filling agent, potassium fluotitanate, polyacrylamide, nanoaluminum oxide, surfactant, preferably salicylic acid, plasticizer, preferably white oil, defoaming agent, preferably quartz powder, and auxiliary agent.

WANG L, LIU S, YANG T, WANG P