Ka taea te whakamahi Urea i roto i nga rahinga nui hei rauemi mata mo te hanga melamine, urea formaldehyde resin, hydrazine hydrate, tetracycline, Phenobarbital, caffeine, BR parauri whakaheke, phthalocyanine B, phthalocyanine Bx, monosodium glutamate me etahi atu hua.
He mana kanapa ki te whakakorikori matū o te rino me te kowiri tira, ka whakamahia hei aukati waikura i roto i te pikinga konganuku, me te whakarite i te otinga whakahohenga palladium.
I roto i te ahumahi, ka whakamahia ano hei rauemi mata mo te hanga urea formaldehyde resin, polyurethane me te Melamine resin.Ina teUreaka whakamahana ki te 200 ℃, ka puta he melamine totoka (ara te waikawa cyanuric).Ko nga hua o te waikawa Cyanuric trichloroisocyanuric acid, sodium dichloroisocyanate, tri (2-hydroxyethyl) isocyanurate, tri (Allyl group) isocyanurate, tri (3,5-di-tert-butyl-4-hydroxybenzyl) isocyanate, tri Glycidol ether o te waikawa isocyanic , me te matatini melamine o te waikawa cyanuric he maha nga tono nui.Ko nga mea tuatahi e rua ko nga whakangao hou me nga whakangao hou, me te katoa o te kaha whakaputa neke atu i te 80000 tone o te waikawa trichloroisocyanuric puta noa i te ao.
He kaihoko whakaheke whiriwhiri mo te whakakore i te hau whakangiha, me te Urea motika, kei roto ko te 32.5% te Urea parakore me te 67.5% te wai whakaheke.
Selective Catalytic Reduction (SCR) exhaust post-treatment is a technology that selectively catalyzes the reduction of nitrogen oxides (NOx) in automotive exhaust gas through the pyrolysis reaction of ammonia generated by urea in the combustion exhaust.He hangarau matua me te hangarau auraki mo te whakaheke i nga matū kino penei i te NOx i roto i nga hau ngiha ngingiha penei i nga kohua me nga miihini diesel.Ko te pünaha SCR he pünaha e tika ana hei whakatutuki i nga ture me nga ture tukunga a Hyundai Motor Company, penei i te Euro IV/Euro V/Euro VI (motu IV/motu V/motu VI).Urea wakaka kiia ko AdBlue i Uropi me DEF i te United States.
Ko nga rauemi mata o nga kirihou motuhake, ina koa ko te Urea-formaldehyde, etahi rawa rapa, he tongi me nga kai kai, hei whakakapi i te tote antifreeze kua marara ki runga i te huarahi (ko te painga ko te kore e pakaru i te whakarewa), te whakarei ake i te haunga o te hikareti, ka hoatu ki te ahumahi Pretzel parauri. , etahi shampoo, kai horoi, kai o te kete whakamahana awhina tuatahi (na te mea ka tauhohe te Urea ki te wai ki te tango i te wera), miihini miihini miihini Urea maimoatanga miihini, miihini Ko te hau para mai i nga tipu hiko waiariki ka tino whakaitihia te hauota waikura, te hanganga o te kaiwhakatairanga ua (matatini. te tote), ka whakamahia ki te wehe paraffin (no te mea ka taea e te Urea te hanga i te whakauru whakauru), nga mea aukati, te hanganga o te hinu miihini taiao, te hanganga o nga hua whakamaama niho, nga maniua matū, nga taonga awhina nui mo te tae me te ta.
Wā tuku: Akuhata-02-2023