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Dab tsi yog cov txheej txheem tsim khoom ntawm polycarbonate (PC)?
Polycarbonate (PC) yog cov saw hlau molecular uas muaj carbonate pawg, raws li cov qauv molecular nrog ntau pawg ester, tuaj yeem muab faib ua aliphatic, alicyclic, aromatic, uas yog cov txiaj ntsig zoo tshaj plaws ntawm pawg aromatic, thiab tseem ceeb tshaj plaws bisphenol A hom. polycarbonate, ...Nyeem ntxiv -
Txhim kho lub neej yav tom ntej kom ruaj khov rau ib hom yas
Polyurethane yog ib qho ntawm cov khoom siv yas thoob plaws ntiaj teb, tab sis nws feem ntau tsis saib xyuas hauv peb lub neej txhua hnub.Txawm li cas los xij, txawm tias koj nyob hauv tsev, tom haujlwm lossis hauv koj lub tsheb, nws feem ntau tsis nyob deb, nrog kev siv kawg xws li lub txaj thiab rooj tog zaum los tsim ...Nyeem ntxiv
