Abaphandi baye bavelisa inoveli ye-polyurethane elastomer esekwe kwi-ascorbic acid-derived dynamic covalent adaptive network (A-CCANs). Ngokusebenzisa impembelelo ye-synergistic ye-keto-enol tautomerism kunye neebhondi ze-carbamate eziguquguqukayo, izinto eziphathekayo zifezekisa iipropati ezikhethekileyo: ukushisa kwe-thermal decomposition ye-345 °C, uxinzelelo lwe-fracture ye-0.88 GPa, amandla oxinzelelo lwe-268.3 MPa (i-energy absorption ye-68.m3M⁉M3M⁉), kunye ne-absorption ye-68. 0.02 emva kwemijikelo ye-20,000. Ikwabonisa ukuziphilisa ngemizuzwana kunye nokusebenza kakuhle kokusetyenziswa kwakhona ukuya kuthi ga kwi-90%, inikezela ngesisombululo sempumelelo kwizicelo kwizixhobo ezihlakaniphile kunye nezixhobo zokwakha.
Olu pho nonongo lwakha i-network covalent adaptive network (A-CCANs) esebenzisa i-ascorbic acid njengesiseko sokwakha ibhloko. Ngokusetyenziswa kwe-keto-enol tautomerism eyilwe ngokuchanekileyo kunye neebhondi ze-carbamate eziguqukayo, i-polyurethane elastomer engaqhelekanga yenziwa. Izinto eziphathekayo zibonisa i-polytetrafluoroethylene (PTFE) -njengokumelana nokushisa-kunye nokushisa kwe-thermal decomposition ephezulu njenge-345 ° C-ngelixa ibonisa ukulinganisela okupheleleyo kokuqina kunye nokuguquguquka: ukunyanzeliswa kwe-fracture yangempela ye-0.88 GPa, kunye nokukwazi ukugcina uxinzelelo lwe-268.3 MPa phantsi kwe-99. MJ·m⁻³ wamandla. Okumangalisa ngakumbi, izinto ezibonakalayo zibonisa ubunzima obushiyekileyo obungaphantsi kwe-0.02% emva kwemijikelezo ye-20,000 yomatshini, ukuziphilisa ngomzuzwana omnye, kwaye ufezekise ukuphinda kusetyenziswe ukusebenza kakuhle kwe-90%. Esi sicwangciso-qhinga soyilo, esiphumeza isaci esithi “ukuba nazo zombini iintlanzi kunye neempuphu zebhere,” sibonelela ngesisombululo sotshintsho kwizicelo ezifana nezinxibo ezikrelekrele kunye nemathiriyeli ye-aerospace cushioning, apho zombini amandla oomatshini kunye nokuqina kokusingqongileyo kubaluleke kakhulu.
Ixesha lokuposa: Aug-28-2025