国家/地区 中国（3）
IPC部 C（2）
IPC大类
IPC小类
IPC
发明人 CHANG A（3）
公开年 2023（2）
申请年 2022（3）
专利权人

Thermal insulation and sound-absorbing silica aerogel composite material for heat preservation, is composed of base material layer and aerogel fireproof slurry layer arranged on surface of base material layer, where base material layer is silica aerogel felt prepared by spraying process.

HE L, ZHAI S, CHANG A, YANG J, LIU X

Linear negative temperature coefficient thermistor material comprises oxide graphene transition metal oxide as basic material, urea, melamine, dicyandiamide, thiourea, boric acid or sodium borohydride as doping agent.

CHANG A, CHEN L, ZHU J, KONG W

Hydrogel useful in preparation of wound dressing for preventing skin wound and inhibiting Escherichia coli and Staphylococcus aureus, comprises sphingosine WL glue and citric acid.

YE Z, CHANG A, ZHU H