Masu bincike sun ɓullo da wani labari na polyurethane elastomer dangane da ascorbic acid-samu dynamic covalent adaptive network (A-CCANs). Ta hanyar haɓaka tasirin haɗin gwiwa na keto-enol tautomerism da haɗin gwiwar carbamate mai ƙarfi, kayan suna samun kyawawan kaddarorin: yanayin bazuwar thermal na 345 ° C, raunin karaya na 0.88 GPa, ƙarfin matsawa na 268.3 MPa (ƙarar kuzari na 68.93 MJ³) 0.02 bayan 20,000 hawan keke. Hakanan yana baje kolin warkar da kai a cikin daƙiƙa guda da ingantaccen sake yin amfani da shi har zuwa 90%, yana ba da ingantaccen bayani don aikace-aikace a cikin na'urori masu wayo da kayan gini.
Wannan binciken mai ban sha'awa ya gina cibiyar sadarwa mai daidaitawa mai ƙarfi (A-CCANs) ta amfani da ascorbic acid azaman tushen ginin ginin. Ta hanyar keto-enol tautomerism da aka ƙera daidai da haɗin gwiwar carbamate, an ƙirƙiri wani elastomer na musamman na polyurethane. Kayan yana nuna polytetrafluoroethylene (PTFE) -kamar juriya mai zafi - tare da zafin jiki na thermal bazuwa har zuwa 345 ° C-yayin da yake nuna cikakkiyar ma'auni na rigidity da sassauci: damuwa na karya na gaskiya na 0.88 GPa, da ikon kula da danniya na 268.3 MPa a ƙarƙashin 99.9% matsawa. na makamashi. Ko da mafi ban sha'awa, kayan yana nuna ragowar nau'in ƙasa da 0.02% bayan hawan keke 20,000, yana warkar da kansa a cikin dakika ɗaya, kuma yana samun ingantaccen sake amfani da 90%. Wannan dabarar ƙira, wacce ta cim ma karin maganar "samun duka kifi da ƙafar beyar," yana ba da mafita na juyin juya hali don aikace-aikace kamar su wayoyi masu wayo da kayan kwantar da sararin samaniya, inda ƙarfin injina da dorewar muhalli ke da mahimmanci.
Lokacin aikawa: Agusta-28-2025