Qhov sib txawv tseem ceeb ntawm polystyrene thiab Styrofoam yog tias cov polystyrene yog ib daim ntawv ntawm hluavtaws hydrocarbon polymer whereas styrofoam yog ib hom lag luam ntawm polystyrene.
Polystyrene yog cov khoom siv polymer. Nws tsim los ntawm polymerization ntawm styrene monomer. Yog li, nws yog muaj nyob rau hauv ob qho tib si khoom los yog ua npuas ncauj, thiab nws yog ntau vim nws pheej yig. Styrofoam yog lub cim lag luam ntawm polystyrene.
YPolystyrene yog dab tsi?
Polystyrene yog cov hluavtaws hluavtaws hydrocarbon polymer. Peb tuaj yeem tsim cov polymer no los ntawm monomer styrene. Nws muaj nyob rau hauv ob daim ntawv ua ib daim ntawv khov los yog ua npuas ncauj. Cov khoom no yog ntshiab, tawv, thiab nkig. Ntxiv mus, nws yog pheej yig thaum xav txog ib chav tsev qhov hnyav. Txawm li cas los xij, nws yog qhov tsis zoo rau cov pa oxygen thiab dej vapor.
Cov polymer no muaj qhov sib piv qis. Nws yog pob tshab, thiab peb tuaj yeem xim cov resin no nrog cov xim xim. Nws yog ib qho thermoplastic polymer. Nyob rau hauv chav tsev kub, nws yog nyob rau hauv lub xeev khov. Tab sis yog tias peb ua kom sov lub polymer saum toj no 100 ° C, cov khoom ntws. Yog li ntawd, nws yog iav hloov kub ntawm cov khoom no. Txawm li cas los xij, nws yuav nruj thaum peb txias nws rov qab.
Daim duab 01: Polystyrene Ua Npuas Ncauj
Lub biodegradation ntawm cov polymer no qeeb heev. Txij li thaum nws muaj ntau li ib liter hauv ib puag ncig, peb yuav tsum txo qis kev siv polystyrene. Cov tshuaj formula ntawm no compound yog (C8H8)n,thiab lub melting point yog 240 °C. Thaum xav txog cov qauv tshuaj ntawm cov khoom siv no, nws muaj cov saw hlau ntev hydrocarbon nrog cov qauv sib hloov ntawm phenyl pawg txuas nrog cov saw hlau.
Styrofoam yog dab tsi?
Styrofoam yog lub cim lag luam ntawm polystyrene. Nws ntog nyob rau hauv qeb ntawm kaw-cell extruded polystyrene ua npuas ncauj (XPS). Cov khoom no muaj lub teeb xiav xim. Tus tswv ntawm hom no yog Dow Chemical Company. Styrofoam muaj txog 98% huab cua; qhov no ua rau nws lub teeb yuag thiab buoyant.
Daim duab 02: Styrofoam branded extruded Polystyrene Foam
Thaum xav txog kev siv cov khoom siv no, nws muaj ntau daim ntawv thov ua cov khoom siv hauv tsev, hauv tsev rwb thaiv tsev sheathing thiab cov yeeb nkab rwb thaiv tsev. Ntxiv mus, peb tuaj yeem siv cov khoom siv no nyob rau hauv txoj kev thiab lwm yam qauv los tiv thaiv cov av cuam tshuam vim yog khov. Sib nrug los ntawm qhov ntawd, peb tuaj yeem siv cov khoom siv no cov txheej txheem insulated panels; cov no yog siv los ntawm florists hauv cov khoom siv tes ua.
Qhov txawv ntawm Polystyrene thiab Styrofoam yog dab tsi?
Polystyrene yog cov hluavtaws hluavtaws hydrocarbon polymer whereas Styrofoam yog cov cim lag luam ntawm polystyrene. Qhov no ua rau qhov sib txawv ntawm polystyrene thiab Styrofoam. Polystyrene zoo li pob tshab. Tab sis ntau hom polystyrene muaj xim sib txawv vim yog ntxiv cov xim. Piv txwv li, Styrofoam muaj lub teeb xiav xim.
Ntxiv mus, lwm qhov sib txawv ntawm polystyrene thiab Styrofoam yog cov polystyrene muaj nyob rau hauv ob qho tib si cov khoom lag luam thiab cov khoom ua npuas ncauj, tab sis Styrofoam tsuas yog muaj raws li cov khoom ua npuas ncauj xwb. Kuj tseem muaj qhov sib txawv ntawm polystyrene thiab Styrofoam hauv lawv cov kev siv. Lub Styrofoam feem ntau yog tsim los ua cov khoom siv rwb thaiv tsev hauv cov tsev thiab txoj kev.
Summary – Polystyrene vs Styrofoam
Polystyrene yog cov khoom siv polymer uas tsim los ntawm monomer, styrene. Styrofoam yog ib daim ntawv ntawm polystyrene. Qhov sib txawv tseem ceeb ntawm polystyrene thiab Styrofoam yog tias cov polystyrene yog ib daim ntawv ntawm cov hluavtaws uas muaj ntxhiab hydrocarbon polymer whereas Styrofoam yog ib hom lag luam ntawm polystyrene.
