Polyvinyl cawv yog siv ntau zaus hauv peb lub neej.Muaj ntau yam kev faib tawm ntawm polyvinyl cawv thiab ntau yam kev siv ntawm polyvinyl cawv.Nws ua lub luag haujlwm tseem ceeb hauv peb cov khoom tsim thiab lub neej.Qee tus neeg tsis paub meej txog kev siv polyvinyl cawv, yog li, kev siv polyvinyl cawv yog dab tsi?Cia peb saib!
Polyvinyl cawv yog dab tsi?
Polyvinyl cawv yog ib qho organic compound, tshuaj formula [C2H4O] N, tsos yog dawb flake, flocculent los yog hmoov khoom, tasteless.Soluble nyob rau hauv dej (tshaj 95 ℃), me ntsis soluble nyob rau hauv dimethyl sulfoxide, insoluble nyob rau hauv roj av, kerosene, zaub roj, benzene, toluene, dichloroethane, carbon tetrachloride, acetone, ethyl acetate, methanol, ethylene glycol, thiab lwm yam.
Ob, lub luag hauj lwm ntawm polyvinyl cawv.
Siv rau kev tsim cov polyvinyl acetal, roj av resistant yeeb nkab thiab vinylon, ntaub kho tus neeg saib xyuas, emulsifier, ntawv txheej, nplaum, thiab lwm yam.
Kev faib tawm ntawm cov khoom siv tshuaj lom neeg
Cov khoom siv tshuaj lom neeg tuaj yeem muab faib ua cov organic thiab inorganic chemical raw khoom.
Kev faib tawm ntawm cov khoom siv tshuaj organic
Nws tuaj yeem muab faib ua alkanes thiab lawv cov derivatives, alkenes thiab lawv cov derivatives, alkynes thiab derivatives, quinones, aldehydes, cawv, ketones, phenols, ethers, anhydrides, esters, organic acids, carboxylate, carbohydrates, heterocyclic, aminogenates, nitriles thiab lwm yam.
Classification ntawm inorganic tshuaj raw khoom
Cov khoom siv raw khoom tseem ceeb ntawm cov khoom siv tshuaj inorganic yog sulfur, sodium, phosphorus, potassium, calcium thiab lwm yam chemical minerals (saib inorganic ntsev kev lag luam) thiab thee, roj, natural gas thiab cua, dej thiab lwm yam.
Dab tsi yog cov organic chemical raw khoom
Kev lag luam tshuaj lom neeg yog lub npe luv ntawm kev lag luam tshuaj lom neeg, tseem hu ua organic synthesis kev lag luam.Raws li roj av, natural gas, thee thiab lwm yam ntaub ntawv raw, lub ntsiab ntau lawm ntawm ntau yam organic raw khoom kev lag luam.Cov organic chemical ncaj qha raw cov ntaub ntawv muaj xws li hydrogen, carbon monoxide, methane, ethylene, acetylene, propylene, carbon plaub los yog ntau tshaj aliphatic hydrocarbons, benzene, toluene, xylene, ethylbenzene thiab hais txog.Los ntawm cov roj crude, roj av distillate los yog tsawg carbon alkane cracking gas, refinery roj thiab roj, tom qab sib cais kev kho mob, yuav ua tau rau txawv hom phiaj ntawm aliphatic hydrocarbon raw cov ntaub ntawv;Aromatics tuaj yeem sib cais los ntawm cov roj av hloov pauv ntawm kev hloov pauv catalytic, cov roj av tawg ntawm hydrocarbon cracking thiab cov thee tar ntawm thee retorting.
Post lub sij hawm: May-19-2022