Cov txheej txheem ntawm cov roj hmab hluavtaws tuaj yeem muab faib ua peb ntu: synthesis thiab refining ntawm monomers, txheej txheem polymerization thiab tom qab kho cov roj hmab.
Monomer ntau lawm thiab refining
Cov khoom siv raw ntawm cov roj hmab hluavtaws yog monomer, thiab cov txheej txheem niaj hnub rau kev ua kom huv muaj xws li kev kho, ntxuav, ziab, thiab lwm yam.
Aggregation txheej txheem
Cov txheej txheem polymerization yog txheej txheem uas lub monomer yog polymerized los ntawm tus pib thiab cov catalyst los tsim ib lub polymer. Qee lub sij hawm siv cov cuab yeej sib sau ua ke, qee zaum ntau qhov kev sib txuas yog siv hauv koob. Cov txheej txheem polymerization ntawm hluavtaws roj hmab tsuas yog siv ob txoj kev ntawm emulsion polymerization thiab kua polymerization. Tam sim no, styrene-butadiene roj hmab, isoprene roj hmab, butadiene roj hmab, butyl roj hmab thiab lwm yam yog siv rau emulsion polymerization.
Tom qab ua tiav
Kev kho tom qab yog txheej txheem ntawm kev npaj cov roj hmab tiav los ntawm kev tshem tawm cov monomers uas tsis muaj kev cuam tshuam, agglomerating, dehydrating, ziab thiab ntim tom qab polymerization (lub latex lossis cov kua nplaum). Cov txheej txheem coagulation ntawm emulsion polymerization tsuas yog siv cov electrolyte lossis polymer coagulant los rhuav tshem cov emulsion kom precipitate cov colloidal hais. Cov txheej txheem coagulation ntawm kev daws polymerization yog tsuas yog raws li cov dej kub condensate. Cov colloidal hais precipitated tom qab coagulation muaj ib tug loj npaum li cas ntawm cov dej thiab yuav tsum tau dehydrated thiab qhuav.