国家/地区 中国（2）
IPC部 B（2）
IPC大类 B01（2） C01（2）
IPC小类 B01D（2）
IPC B01D046/00（2）
发明人 ZHANG B（2）
公开年
申请年
专利权人

Face mask e.g. surgical face mask, comprises mask component to cover wearer's mouth and nose, and fastener engaging with mask component comprising air-permeable outer layer, inner layer located on inner side of mask component, and graphene layer, where fastener connects mask component to wearer.

ZHAMU A, JANG B Z, ZHANG B

Preparing graphene air filter core in large quantity, comprises e.g. mixing graphite and potassium permanganate, adding concentrated sulfuric acid and concentrated phosphoric acid, and reacting under condition of vacuum heating distillation.

TANG B, LI T, MEI D, DENG M, LUO Z, QIAO G, ZHANG B, XU W, MU Z, LIN Y, DENG J, XIONG R, MENG L, YE C