Hauv nws daim ntawv yooj yim tshaj plaws, vulcanization yog coj los ntawm cua sov roj hmab nrog leej faj. Tus txheej txheem tau tshawb pom nyob rau xyoo 1839 los ntawm US inventor Charles Goodyear Charles Goodyear Charles Goodyear yug hauv New Haven, Connecticut, tus tub ntawm Amasa Goodyear, thiab tus hlob ntawm rau tus menyuamNws txiv yog ib tug. kws kho tsheb thiab tus kws pab tswv yim rau Governor Eaton ua tus thawj coj ntawm lub tuam txhab London Merchants, uas tau tsim lub koom haum New Haven hauv 1683. https://en.wikipedia.org › wiki › Charles_Goodyear
Charles Goodyear - Wikipedia
, leej twg kuj tau sau tseg txog kev ua haujlwm tseem ceeb ntawm qee yam tshuaj ntxiv hauv cov txheej txheem.
txheej txheem ntawm vulcanization yog dab tsi?
Vulcanization yog cov txheej txheem tshuaj uas cov roj hmab tau rhuab nrog sulphur, accelerator thiab activator ntawm 140-160 ° C. Cov txheej txheem suav nrog kev tsim ntawm kev sib txuas ntawm cov roj hmab ntev ntevkom ua tiav cov elasticity, resilience, tensile zog, viscosity, hardness thiab huab cua tsis kam.
Vim li cas cov roj hmab vulcanized tsim?
Xyoo 1843, Charles Goodyear tau tshawb pom tias yog tias koj tshem cov sulfur ntawm roj hmab ces cua sov nws, nws yuav khaws nws elasticity. Cov txheej txheem no hu ua vulcanization ua cov roj hmab tsis muaj dej thiab lub caij ntuj no-pov thawj thiab qhib qhov rooj rau kev lag luam loj rau cov khoom siv roj hmab.
Charles Goodyear ntxiv rau roj hmab dab tsi?
Kev txom nyem dua, Goodyear tseem ua haujlwm. Nws qhov kev vam meej tom ntej tuaj thaum nws sim ntxiv sulfur rau roj hmab. Qhov no ua rau cov khoom tsis nplaum thiab tiv taus ntau dua rau kev hloov pauv hauv qhov kub thiab txias.
roj hmab siv rau hnub no yog dab tsi?
Cov neeg siv khoom loj tshaj plaws ntawm cov roj hmab yog cov log tsheb thiab cov raj, ua raws li cov khoom siv roj hmab. Lwm qhov tseem ceeb ntawm kev siv roj hmab yog hoses, siv, matting, flooring, hnab looj tes kho mob thiab ntau ntxiv. Roj hmab kuj tseem siv tau ua adhesiveshauv ntau cov khoom thiab kev lag luam.
