Polyvinyl chloride (PVC) yog thawj polymerised ntawm 1838-1872. Ib qho tseem ceeb tshwm sim hauv 1907, thaum Belgian-Asmeskas chemist Leo Baekeland tsim Bakelite, thawj cov khoom siv hluavtaws, tsim cov yas loj.
Nyob rau xyoo kaum xyoo twg cov yas yog thawj zaug muag khoom?
Lub xyoo pua 20th pom kev hloov pauv hauv kev tsim cov yas: qhov tshwm sim ntawm cov khoom siv hluavtaws nkaus xwb. Belgian chemist thiab clever marketeer Leo Baekeland pioneered thawj tag nrho cov yas yas nyob rau hauv 1907.
Puas muaj yas xyoo 1940?
Los ntawm xyoo 1940, peb muaj ob qho tib si yas thiab cov tshuablos tsim cov khoom yas loj. … Raws li nrog celluloid, Bakelite tau tsim los hloov cov khoom tsis tshua muaj: shellac, ib yam khoom ntawm cov nplaum nplaum ntawm cov poj niam lac beetle.
Yuav ua li cas yog yas thawj zaug?
Nyob ntawm Kev Tshaj Tawm Thoob Ntiaj Teb Zoo Tshaj Plaws hauv London, lub ntiaj teb pom thawj qhov piv txwv ntawm tib neeg tsim cov yas hauv daim ntawv ntawm medallions, combs thiab riam tuav ua los ntawm Parkesine. Cov khoom siv, tsim los ntawm Alexander Parkes, yog Ameslikas tsim los hloov cov kaus ntxhw.
Yuav ua li cas yas tuaj rau hauv?
Kev txhim kho ntawm cov yas pib nrog siv cov khoom siv ntuj tsim uas muaj cov khoom siv hauv lub cev, xws li shellac thiab zom cov pos hniav. … Ib qho kev ua tiav tseem ceeb tuaj rau xyoo 1907, thaum Belgian-American chemist Leo Baekeland tsimBakelite, thawj cov khoom siv tiag tiag, tsim cov yas loj.
