Cov Evolution ntawm EPTFE Kev Lag Luam yog qhov kev lag luam zoo tshaj plaws uas tau tsim sijhawm ntau dua Epoxy pib tsim kev hloov pauv Einhorn ntawm Ethylene thiab Formaldehyde. Qhov no tau hu ua "epoxide", uas thaum kawg tau paub ua epoxy los ntawm kev sib txuas nrog polyol lossis esters. Thaum lub sijhawm thawj daim qauv no muaj ntau yam kev siv, nws siv kev txwv vim nws tus nqi siab thiab tsis muaj cov ntaub ntawv raw. Xyoo 1940 tau ntau cov kws tshawb nrhiav tau ua haujlwm ntawm cov qauv qub ntawm epoxy uas tau pom tias yuav ua li cas kom nws ruaj khov siv los ntawm roj av xws li cyclohexane oxide thiab phenol noveolak resin. Nyob rau tib lub sijhawm cov kws tshawb fawb British tau pib sim nrog cov khoom ntim sib txawv xws li cov khoom siv ua kom muaj zog dua li ua ntej thiab yog li paving txoj hauv kev rau kev tsim cov tswv yim niaj hnub. Thaum lub sijhawm World War II Tub rog cov ntawv thov rau Eposkas tau ua kom tau cov khoom siv tam sim no, tso cai rau lawv kom tau raws li qhov xav tau tshwj xeeb uas xav tau hauv kev ua haujlwm aviation. Kev tsim kho cov thev naus laus zis tau txuas ntxiv mus rau cov txheej txheem hluavtaws zoo li cov khoom siv hluavtaws zoo li cov khoom siv hluavtaws zoo li cov khoom siv hluav taws xob nrog cov khoom siv hluav taws xob nrog cov khoom siv hluav taws xob nrog cov khoom siv hluav taws xob nrog cov khoom siv hluav taws xob nrog cov khoom siv hluav taws xob zoo li cov khoom siv hluav taws xob zoo li ' Los ntawm thaum ntxov xyoo 1960 tau ua ntau cov txheej txheem tau ua kom zoo dua cov kev tsim kho ntawm lwm cov kev tsim kho ntawm lwm tus neeg sib txawv ntawm cov khoom siv sib txawv Cov lus hais kom ua cov cuab yeej txiav tau cov khoom lag luam siab dua qib kev tsis sib xws ua ntej muaj ob xyoo dhau los ua ntej lub sijhawm no. Lub sijhawm ua haujlwm no qhia tau deb li cas los ntawm kev txhawb nqa yav dhau los ntawm kev ua haujlwm dhau los ntawm kev ua haujlwm dhau los ntawm kev ua tiav lub neej tam sim no kev ua tau zoo tshaj li hnub pib nce qib yav tom ntej tau txais txiaj ntsig zoo tshaj plaws thoob ntiaj teb.
Lub sijhawm Post: Feb-27-2023