Thaum Lub Rau Hli 8, 2023, Xib Fwb Tang Ruikang thiab tus kws tshawb fawb Liu Zhaoming los ntawm Lub Tsev Haujlwm Saib Xyuas Chemistry ntawm Zhejiang University tau tshaj tawm cov khoom siv ntawm "elastic ceramic yas". Qhov no yog cov khoom siv tshiab uas sib xyaw ua ke hardness thiab softness, nrog ceramic zoo li hardness, roj hmab zoo li elasticity, thiab yas zoo li plasticity.
Puas yog cov khoom pob tshab yas lossis ceramic? Nws yog ib qho elastic ceramic yas npaj los ntawm pab pawg neeg Zhejiang University.
"Elastic ceramic plastics" yog thawj zaug kom paub txog kev sib xyaw ntawm cov organic thiab inorganic Ionic compound ntawm qib molecular, kom tau txais cov ntaub ntawv tshiab nrog cov khoom sib txawv ntawm cov ntaub ntawv dhau los. Nyob rau hauv ib txwm cognition, cov txheej txheem ntawm kev npaj cov ntaub ntawv nyob rau hauv lub teb ntawm Inorganic chemistry thiab Polymer chemistry yog txawv kiag li. Nws tau tshaj tawm tias "elastic ceramic yas" polymerized los ntawm hybrid molecules hauv chav kuaj yog lub pob me me daj zoo li lub cev. Nyob rau hauv nws cov molecules, lub inorganic ionic bond network thiab cov organic Covalent daim ntawv cog lus network yog intertwined thiab interspersed, uas tsis tsuas yog muaj cov yam ntxwv ntawm inorganic cov ntaub ntawv, tab sis kuj khaws cov yam ntxwv ntawm cov ntaub ntawv organic, thiab muaj ib tug tej yam hardness thiab elasticity. Thaum siv ib qho kev quab yuam sab nraud, cov pob txha tsis muaj zog tuaj yeem muab cov tawv tawv thiab lub zog; Thaum lub zog sab nraud yog qhov loj thiab elastic deformation tshwm sim, tag nrho cov pob txha deforms, ua rau cov nyhuv buffering; Tom qab tshem tawm cov quab yuam sab nraud, cov pob txha pob txha ua rau lub cev rov ua haujlwm, rov ua kom lub network rov qab mus rau nws lub xeev qub. Yav dhau los, cov organic-inorganic fusion yog ib qho yooj yim superposition, ib yam li ncuav inorganic hmoov rau hauv cov organic moj khaum thiab nplawm tusyees. Yog tias koj subdivide txheej los ntawm txheej, qib molecular tseem yog "koj yog koj, kuv yog kuv", tsuas yog qhov sib xyaw ntawm ob, "qhov kev sim no tsim cov molecules tshiab uas tsis yog yav dhau los, tau txais cov qauv tshiab, thiab rhuav tshem cov teeb meem ntawm cov organic tebchaw thiab inorganic Ionic compound ntawm molecular scale. "
Zhejiang University cov kws tshawb fawb tau muab piv rau qhov ua tau zoo ntawm cov khoom siv tshiab no nrog ceramics, roj hmab, yas, hlau, thiab lwm yam. Nws tau ua tiav cov qhab nia siab hauv hardness, rebound, lub zog, deformation, thiab processability. Nws tsis tsuas yog marble qib hardness, tab sis kuj muaj elasticity ntawm roj hmab thiab cov yas ntawm plastics. Kuj tseem muaj cov yam ntxwv uas cov yas tsoos tsis muaj: lawv tsis muag tom qab cua sov.
Post lub sij hawm: Lub Xya hli ntuj-25-2023
