Cov pa roj carbon dub tau muab faib ua cov pa roj carbon dub thiab cov pa roj carbon dub, cov pa roj carbon dub cov ntsiab lus tseem ceeb silica, yog cov hmoov dawb lossis cov hmoov me me lossis tsis xwm yeem. Nws muaj qhov kub tsis kam tiv taus, tsis muaj kev sib txuas thiab hluav taws xob zoo rwb thaiv tsev. Feem ntau siv hauv cov khoom siv roj hmab, kev ua liaj ua teb, kev lag luam tshuaj niaj hnub, ntawv thiab lwm yam haujlwm.
Cov pa roj carbon dub, tseem hu ua carbon black, yog qhov ua tau zoo heev, nplaim taws thiab lub teeb, feem ntau yog tsim los ntawm kev ua tsis tiav lossis tawg ntawm cov pa uas muaj cov khoom xws li thee, roj nkev, thiab roj. Cov pa roj carbon dub tau siv dav hauv kev tsim tus cwj mem, xim, xim, roj hmab ntxiv, hnav-tiv taus tus neeg sawv cev.
Xyoo 1538, Tus kws kho mob Swiss Paracels sau kab lus Latin no:
Dosis facit venenum.
Txhais ua lus Suav tam sim no, muaj cov lus hais nrov heev:
Tawm qhov koob tshuaj mus tham tshuaj lom yog ua si hooligan.
Hauv kev lag luam ntim khoom kuj tuaj yeem qiv hom ntawv no:
Tso ib sab ntawm cov yam ntxwv khoom los tham txog cov cuab yeej ua si tsis zoo.
Thaum peb xaiv cov khoom ntim, peb yuav tsum xub tshuaj xyuas cov yam ntxwv ntawm cov khoom uas tau ntim, xws li nws puas yooj yim cuam tshuam nrog ya raws, ntau npaum li cas lub mesh, ntau npaum li cas ntom, seb nws tuaj yeem tiv tauj tawv nqaij, seb nws puas muaj teeb meem rau tib neeg lub cev thiab lwm yam. Tab sis kuj tseem ua ke nrog qhov xav tau kawg, tswj tus nqi thiab ntxiv rau xaiv cov khoom ntim khoom raug.
Raws li lub cev muaj zog ntawm cov pa roj carbon dub, peb feem ntau pom zoo siv lub tshuab ntim hmoov zoo tshaj plaws nrog lub zog cua.
Ultrafine hmoov ntim lub tshuab ntim feem ntau yog lub hom phiaj ntawm ultrafine hmoov siv qhov sib txawv ntawm lub tshuab nqus tsev thiab cov khoom siv pub rau hauv lub tshuab nqus tsev ntim lub hnab, cov txheej txheem ntim tag nrho raug kaw, kom ua tiav cov txiaj ntsig tsis muaj hmoov av ib puag ncig, kom ua tiav xoom roj hauv hnab nyhuv. Nws ua tiav qhov teeb meem ntawm ultra-nplua, ultra-lub teeb hmoov nyuaj rau pob, ntim loj, muaj kuab paug loj heev.
Lub tshuab ntim khoom no tau siv dav hauv kev ntim khoom ntawm silica, xim xim dub, carbon dub carbon dub, nanometer hmoov, lub teeb calcium, PVC calcium, nanometer calcium, lub teeb barium sulfate, precipitated barium sulfate, ultrafine talc hmoov, silicon hmoov thiab lwm yam hmoov ultrafine.
