国家/地区 中国（2）
IPC部 C（2）
IPC大类 C07（2）
IPC小类 C07F（2）
IPC
发明人 ZHANG Y（2）
公开年
申请年 2022（2）
专利权人

Preparing graphene oxide/chitosan/polyvinyl alcohol composite microsphere immobilized copper catalyst comprises e.g. adding graphene oxide into chitosan solution, ultra-sonicating, adding polyvinyl alcohol and glutaraldehyde, sonicating, adding copper(II) sulfate aqueous solution and reaction.

LI W, LI B, FU C, ZHU L, HU X, GUO H, ZHANG Y

New rare earth flame-retardant complex derivative used as polymer material in fields of engineering plastics, macromolecule film, rubber, is prepared by dispersing ((6-oxo-6H-dibenzo (c, e)))(1,2)oxaphosphohexa-6-yl) methyl)succinic acid in deionized water, stirring, performing centrifugation.

CHEN L, WANG X, WANG S, WU Y, ZHANG Y, SONG L, LIN F