Vatsvaguri vakagadzira polyurethane elastomer itsva yakavakirwa pa ascorbic acid-derived dynamic covalent adaptive network (A-CCANs). Nekushandisa synergistic effect ye keto-enol tautomerism uye dynamic carbamate bonds, chinhu ichi chinowana hunhu hwakanaka: tembiricha yekupisa inodonha ye345 °C, fracture stress ye0.88 GPa, simba rekumanikidza re268.3 MPa (simba rinotorwa re68.93 MJ·m⁻³), uye residual strain iri pasi pe0.02 mushure me20,000 cycles. Inoratidzawo kuzviporesa mukati memasekonzi uye kugona kudzokorodza kusvika 90%, ichipa mhinduro yekubudirira mumashandisirwo mumidziyo yakangwara nezvinhu zvekuvaka.
Chidzidzo ichi chakagadzira network inochinja-chinja ye covalent adaptive network (A-CCANs) ichishandisa ascorbic acid sechivharo chikuru. Kuburikidza ne keto-enol tautomerism yakagadzirwa nemazvo uye dynamic carbamate bonds, polyurethane elastomer inoshamisa yakagadzirwa. Chinhu ichi chinoratidza polytetrafluoroethylene (PTFE)-yakafanana nekupisa-nekupisa kunoora kusvika 345 °C-ukuwo ichiratidza kuenzana kwakakwana kwekuoma uye kuchinjika: kutyoka kwechokwadi kwe0.88 GPa, uye kugona kuchengetedza kushushikana kwe268.3 MPa pasi pe99.9% kudzvanywa uku ichitora 68.93 MJ·m⁻³ yesimba. Chinotonyanya kushamisa, chinhu ichi chinoratidza kushushikana kwakasara kusingasviki 0.02% mushure me20,000 mechanical cycles, chinozviporesa mukati mesekondi imwe chete, uye chinobudirira pakugadzirisazve kwe90%. Maitiro aya ekugadzira, ayo anozadzisa chirevo chekuti "kuva netsoka dzehove nedzebheya," anopa mhinduro itsva yezvishandiso zvakaita sezvipfeko zvemhando yepamusoro nezvinhu zvemuchadenga, uko simba remakanika uye kugara kwenguva refu kwezvakatipoteredza zvakakosha.
Nguva yekutumira: Nyamavhuvhu-28-2025