Cov zais ntawm qee cov ntoo feem ntau tsim cov resins.Raws li thaum ntxov xyoo 1872, German chemist A. Bayer thawj zaug pom tias phenol thiab formaldehyde tuaj yeem tsim cov pob liab liab lossis cov nplaum nplaum thaum rhuab hauv cov kua qaub, tab sis lawv tsis tuaj yeem ua kom huv los ntawm cov txheej txheem classical.thiab nres qhov kev sim.Tom qab lub xyoo pua 20th, phenol tuaj yeem tau txais ntau ntawm cov thee tar, thiab formaldehyde kuj tau tsim nyob rau hauv ntau qhov ntau raws li kev khaws cia, yog li cov khoom siv tshuaj tiv thaiv ntawm ob yog qhov zoo nkauj dua, thiab cia siab tias yuav tsim cov khoom siv tau zoo, txawm tias muaj ntau yam. tib neeg tau siv nyiaj ntau heev rau nws., tab sis tsis ua tiav qhov kev xav tau.
Xyoo 1904, Beckland thiab nws cov pab cuam kuj tau ua qhov kev tshawb fawb no.Lub hom phiaj pib yog los ua cov xim insulating uas hloov cov khoom siv ntuj.Tom qab peb xyoos ntawm kev ua haujlwm hnyav, nyob rau lub caij ntuj sov xyoo 1907, tsis yog tsuas yog cov xim insulating, thiab tseem tsim cov khoom siv hluavtaws tiag tiag - Bakelite, uas yog hu ua "bakelite", "bakelite" lossis phenolic resin.Thaum Bakelite tawm los, cov tuam txhab tau pom sai sai tias nws tuaj yeem tsis tsuas yog ua ntau yam khoom siv hluav taws xob rwb thaiv tsev, tab sis kuj ua cov khoom siv niaj hnub.Kuv nyiam T. Edison ua cov ntaub ntawv, thiab tsis ntev tshaj tawm hauv kev tshaj tawm tias ntau txhiab cov khoom tau ua nrog Bakelite., Yog li Baekeland qhov kev tsim kho tau raug qhuas raws li "alchemy" ntawm lub xyoo pua 20th.
Ua ntej xyoo 1940, phenolic resin nrog cov thee tar raws li cov khoom qub ib txwm ua thawj zaug hauv cov khoom tsim tawm ntawm ntau cov khoom siv hluavtaws, ncav cuag ntau dua 200,000 tons hauv ib xyoos, tab sis txij thaum ntawd los, nrog kev txhim kho ntawm kev lag luam petrochemical, polymerized hluavtaws resins xws li polyethylene. Cov zis ntawm , polypropylene, polyvinyl chloride thiab polystyrene kuj tseem txuas ntxiv.Nrog rau kev tsim ntawm ntau lub tuam txhab loj nrog cov khoom tsim tawm txhua xyoo ntawm ntau tshaj 100,000 tons ntawm cov khoom no, lawv tau dhau los ua plaub hom hluavtaws cob nrog cov khoom siv loj tshaj plaws niaj hnub no.
Niaj hnub no, cov khoom siv hluavtaws thiab cov khoom siv ntxiv tuaj yeem siv los muab cov khoom yas los ntawm ntau txoj kev molding.Muaj ntau ntau yam ntawm cov yas, thiab lub ntiaj teb cov khoom tsim tawm txhua xyoo yog kwv yees li 120 lab tons.Lawv tau dhau los ua cov ntaub ntawv tseem ceeb rau kev tsim khoom, kev ua neej thiab kev tsim kho hauv tebchaws.
Post lub sij hawm: Nov-12-2022