Txog rau caum xyoo dhau los, cov khoom siv hauv tsev tshiab tau tshwm sim, hu ua nthuav polystyrene. Nws cov yam ntxwv deb dhau ntau lub tshuab cua sov uas paub los ntawm lub sijhawm ntawd.
PPP qhov kev muaj koob meej tau nce zuj zus. Niaj hnub no, cov ntaub ntawv zoo insulating tshiab tau raug tshawb pom thiab tsim, tab sis PPS, paub zoo rau peb li polystyrene (txawm hais tias polystyrene thiab polystyrene ua npuas ncauj yog tsim nyob rau hauv ntau txoj kev), tseem yog ib qho zoo tshaj plaws. Vim li cas polystyrene ua npuas ncauj thiaj li ntxim nyiam rau cov tsim?
Khoom nta thiab txiaj ntsig
Txoj hauv kev zoo tshaj plaws kom txuag tau lub zog yog kev rwb thaiv tsev. Yuav kom tsis txhob "dhuav txoj kev", lub tsev yuav tsum tau zoo insulated. Txoj kev yooj yim tshaj plaws los ua qhov no yog nrog tus nqi pheej yig tab sis txhim khu kev qha PPP. Gas-filled yas granules ua cua sov tsis zoo. Qhov no yuav pab kom nws nyob hauv tsev thaum muaj huab cua hloov pauv. Rwb thaiv tsev nrog nthuav polystyrene kuj tso cai rau koj los tiv thaiv vaj tse los ntawm cov dej noo ntau dhau. PPS tsis ntshai ntawm qhov ntub dej: txawm tias nyob hauv dej rau ob peb hnub, nws xyaum tsis ntub. Expanded polystyrene, cov yam ntxwv ntawm uas yuav muab piv nrog ntuj ntoo,muaj peev xwm "ua pa". Nws cov vapor permeability yog kwv yees li tib yam li cov laug cam los yog cib, yog li ntawd, cov kws tshaj lij qhia kom insulate lub tsev los ntawm cov ntaub ntawv no nrog npuas yas. PPS tsis rot tag nrho thiab tsis ua rau cov fungus, nws dampens suab zoo kawg nkaus, yog li nws tuaj yeem siv tsis tau tsuas yog ua lub rhaub, tab sis kuj yog lub suab rwb thaiv tsev. Dab tsi ntxiv yog nthuav polystyrene ua npuas ncauj? Nws cov yam ntxwv los ntawm qhov pom ntawm chemistry yog heev peculiar.
Nws tsis ntshai cov xim, ntsev, kua qaub (tshwj tsis yog rau acetic thiab nitric), yog li PPS yog siv hauv kev tsim kho yuav luag txhua qhov chaw. Tus nqi qis ntawm cov khoom siv zoo kawg nkaus ua ke nrog nws nyob mus ib txhis (PPS tsis muaj hnub nyoog, tsis deform nyob rau hauv ib qho xwm txheej). Thaum koj tau insulated lub tsev nrog kev pab los ntawm PPS, koj tuaj yeem tsis nco qab txog nws mus ib txhis: koj tsis tas yuav hloov lub rwb thaiv tsev. PPS muaj nyob rau hauv ntau hom, tab sis nthuav polystyrene vuas yog tshwj xeeb tshaj yog nrov. Nws tuaj yeem muaj ntau qhov sib txawv (piv txwv li, 60x120, 50x100), yog li cov neeg tsim khoom tuaj yeem xaiv hom ntawv uas yooj yim rau kev ua haujlwm nrog. Tau kawg, PPP, zoo li txhua yam hauv ntiaj teb, muaj ntau qhov tsis txaus. Txawm li cas los xij, lawv tsis tseem ceeb heev uas ntawm ntau lub tshuab cua sov, polystyrene ua npuas ncauj tseem yog qhov nrov tshaj plaws.
Nyob zoo thiab tsis zoo
- PPS ntshai benzene, dichloroethane thiab qee cov kuab tshuaj.
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styrofoam vuas Nqe qee zaum ua qhov lossis cov kab hauv cov khoom ntxeem tau: lawv kuj nyiam kub heev. Koj tuaj yeem ntshai cov tsiaj nrog kev pab ntawm cov tshuaj npaj rau lawv.
- Cov npuas nws tus kheej yog combustible. Txhawm rau txo nws cov hluav taws kub hnyiab, cov tuam txhab niaj hnub no ntxiv cov khoom siv hluav taws xob, cov khoom uas tiv thaiv kev sib tsoo, rau cov khoom siv. Cov neeg ua haujlwm qhia ntawv tau txais los ntawm lawv cov kev pabcuam raug cim nrog tsab ntawv.
- PPS tuav compression zoo, tab sis nkig heev. Cov cuab yeej siv niaj hnub no tau pab daws qhov teeb meem no. Extruded polystyrene ua npuas ncauj muaj zog ntau dua li niaj zaus, txawm hais tias nws dhau chav me me zuj zus. Tab sis nrog lub qhov cua ua haujlwm zoo, qhov tsis zoo no ploj mus.
Koj puas xav kom insulate koj lub tsev pheej yig, tab sis nrog cov khoom zoo thiab ntev? Xaiv Styrofoam. Koj mus tsis tau lawm.
