Qhov sib txawv tseem ceeb ntawm kev nthuav dav thiab extruded polystyrene yog tias peb tsim cov polystyrene nthuav dav (los yog EPS) los ntawm cov hlaws khoom ntawm polystyrene thaum peb tsim extruded polystyrene (los yog XPS) los ntawm cov khoom polystyrene crystals.
Expanded polystyrene yog hom ua npuas ncauj ua los ntawm polystyrene. Nws yog lub teeb yuag, nruj thiab kaw cell rwb thaiv tsev. Extruded polystyrene yog lwm hom ua npuas ncauj ua los ntawm polystyrene. Lub npe lag luam rau cov khoom no yog Styrofoam (los ntawm Dow Chemical Company). Ob qho khoom siv no yog thermoplastic thiab nruj.
YNpaj Polystyrene yog dab tsi?
Expanded polystyrene lossis EPS yog cov khoom siv thermoplastic ua npuas ncauj uas peb tsim los ntawm cov hlaws khoom ntawm polystyrene. Hauv kev tsim cov khoom ua npuas dej no, peb tuaj yeem ua tiav qhov kev nthuav dav vim muaj cov pa me me hauv cov hlaws polystyrene. Cov pa roj no nthuav dav thaum peb sov cov khoom siv. Txhawm rau kom sov cov khoom, peb siv chav. Cov txheej txheem cua sov no tsim cov cell kaw ntawm EPS. Tom qab kev nthuav dav, cov hlaws no nce lawv qhov ntim los ntawm 40 npaug tshaj qhov qub ntim ntawm cov hlaws.
Daim duab 01: Nthuav Polystyrene Ua Npuas Ncauj
Txog 98% ntawm nthuav dav polystyrene yog huab cua. Yog li ntawd, nws yog ib qho ntawm cov khoom ntim khoom lightest. Qhov no ua rau tus nqi thauj khoom tsawg kawg nkaus. Cov khoom zoo tshaj plaws ntawm cov khoom siv polymer no muaj xws li thermal rwb thaiv tsev zoo, damping zog thiab hnyav hnyav. Cov khoom no ua rau nws muaj txiaj ntsig zoo li cov khoom siv hauv tsev, cov khoom ntim khoom, cov qauv dav hlau, thiab lwm yam. Txawm li cas los xij, muaj qee qhov tsis zoo thiab. Piv txwv li, nws tsis tiv taus cov kuab tshuaj organic, nws yog flammable yog roj pleev xim, kev txhawj xeeb txog kev noj qab haus huv thaum siv los ua cov khoom ntim khoom noj, thiab lwm yam.
YExtruded Polystyrene yog dab tsi?
Extruded polystyrene lossis XPS yog cov khoom ua npuas ncauj uas peb tsim los ntawm cov khoom siv polystyrene. Yog li ntawd, nyob rau hauv cov txheej txheem ntau lawm, peb xav tau tshwj xeeb additives thiab tshuab neeg ua hauj lwm nrog rau polystyrene muaju. Peb muab cov khoom no rau hauv ib qho extruder. Nyob ntawd, qhov sib tov sib xyaw ua ke zoo kawg nkaus thiab melts nyob rau hauv kev tswj xyuas xws li kev kub ntxhov siab. Qhov no ua rau cov kua nplaum yas, uas yog kub thiab tuab. Tom qab ntawd peb hla cov kua dej no los ntawm kev tuag. Thaum nws tawm los ntawm qhov tuag, nws nthuav ua npuas ncauj. Tom qab ntawd peb tuaj yeem tsim, txias thiab txiav cov khoom no rau hauv cov duab uas xav tau.
Cov txheej txheem tsim khoom ntawm extruded polystyrene ua rau cov khoom ua npuas ncauj tshwj xeeb. Nws muaj ib tug uniform kaw-cell qauv thiab du daim tawv nqaij. Cov khoom no muaj superior noo noo tsis kam. Yog li ntawd, nws muaj txiaj ntsig zoo hauv kev tsim kho thiab kev siv engineering. Ntxiv mus, nws muaj tshuaj tiv thaiv zoo heev, av sib xws, muaj peev xwm ntawm kev cia sab nraum zoov, thiab lwm yam.
Qhov txawv ntawm Kev nthuav dav thiab Extruded Polystyrene yog dab tsi?
Expanded polystyrene lossis EPS yog cov khoom siv thermoplastic ua npuas ncauj uas peb tsim los ntawm cov hlaws khoom ntawm polystyrene whereas lub extruded polystyrene los yog XPS yog cov khoom ua npuas ncauj uas peb tsim los ntawm cov khoom siv polystyrene. Qhov no yog qhov sib txawv tseem ceeb ntawm kev nthuav dav thiab extruded polystyrene. Thaum xav txog cov txheej txheem tsim khoom, qhov nthuav dav polystyrene muaj qhov cuam tshuam tsawg kawg nkaus rau ib puag ncig dua li cov polystyrene extruded.
Cov hauv qab no nthuav tawm qhov sib txawv ntawm qhov nthuav dav thiab extruded polystyrene hauv daim ntawv tabular.
Summary – Expanded vs Extruded Polystyrene
Lub sijhawm luv rau kev nthuav dav polystyrene yog EPS, thiab rau extruded polystyrene, nws yog XPS. Qhov sib txawv tseem ceeb ntawm kev nthuav dav thiab extruded polystyrene yog tias peb tsim cov polystyrene nthuav dav los ntawm cov hlaws khoom ntawm polystyrene thaum peb tsim extruded polystyrene siv cov khoom siv polystyrene.
