Abacwaningi benze inoveli ye-polyurethane elastomer esekelwe kunethiwekhi ye-ascorbic acid-derived dynamic covalent adaptive network (A-CCANs). Ngokusebenzisa umphumela we-synergistic we-keto-enol tautomerism namabhondi e-carbamate ashukumisayo, okokusebenza kufinyelela izici ezihlukile: izinga lokushisa elishisayo lokubola elingu-345 °C, ingcindezi yokuphuka engu-0.88 GPa, amandla acindezelayo angu-268.3 MPa (ukumuncwa kwamandla okungama-68. 0.02 ngemva kwemijikelezo engu-20,000. Iphinde ibonise ukuzelapha ngemizuzwana nje kanye nokusebenza kahle kokugaywa kabusha okungafika ku-90%, ihlinzeka ngesixazululo sempumelelo yezinhlelo zokusebenza kumadivayisi ahlakaniphile nezinto zokwakha.
Lolu cwaningo oluyisisekelo lwakha inethiwekhi eguquguqukayo ye-covalent adaptive (A-CCANs) isebenzisa i-ascorbic acid njengesisekelo sokwakha. Nge-keto-enol tautomerism eklanywe kahle kanye namabhondi e-carbamate ashukumisayo, kwakhiwe i-polyurethane elastomer engavamile. Izinto ezibonakalayo zibonisa i-polytetrafluoroethylene (PTFE)-njengokumelana nokushisa-okunokushisa okushisayo okubolayo okufika ku-345 °C-ngenkathi kubonisa ibhalansi ephelele yokuqina nokuguquguquka: ukucindezeleka kwangempela kokuphuka kwe-0.88 GPa, kanye nekhono lokugcina ukucindezeleka kwe-268.3 MPa ngaphansi kwe-compress 3% ngaphansi kwe-99.9%. MJ·m⁻³ wamandla. Okuhlaba umxhwele nakakhulu, okokusebenza kubonisa uhlobo olusele olungaphansi kuka-0.02% ngemva kwemijikelezo engu-20,000 yemishini, ukuzelapha ngaphakathi komzuzwana owodwa, futhi kuzuzwe ukusebenza kahle kokwenza kabusha okungama-90%. Lelisu lokuklama, elifeza isaga esithi “ukuba nakho kokubili inhlanzi nezidladla zebhere,” lihlinzeka ngesixazululo esiguquguqukayo sezinhlelo zokusebenza ezifana nezinto ezigqokwayo ezihlakaniphile nezinto zokucusha emkhathini, lapho kokubili amandla emishini nokuqina kwemvelo kubalulekile.
Isikhathi sokuthumela: Aug-28-2025