Feem ntau,polystyreneyog ib qho hluavtaws hluavtaws ua los ntawm monomer styrene, uas yog muab los ntawm benzene thiab ethylene, ob qho tib si roj av.Polystyrene tuaj yeem ua tau zoo lossis foamed.Polystyreneyog ib qho xim tsis muaj xim, pob tshab thermoplastic, uas feem ntau yog siv los ua npuas board lossis beadboard rwb thaiv tsev thiab ib hom xoob-sau rwb thaiv tsev uas muaj cov hlaws me me ntawm polystyrene.Polystyrene ua npuas ncaujyog 95-98% cua.Polystyrene foams yog cov thermal insulators zoo thiab yog li feem ntau siv los ua cov ntaub ntawv rwb thaiv tsev, xws li hauv cov ntaub ntawv insulating thiab cov txheej txheem insulated vaj huam sib luag.Kev nthuav dav (EPS)thiabExtruded polystyrene (XPS)yog ob qho tib si tsim los ntawm polystyrene, tab sis EPS yog tsim los ntawm cov hlaws me me uas tau sib xyaw ua ke thiab XPS pib ua cov khoom molten uas tau nias tawm ntawm daim ntawv rau hauv nplooj ntawv.XPS feem ntau yog siv los ua npuas board rwb thaiv tsev.
Kev nthuav dav polystyrene (EPS)yog ib qho tawv thiab tawv, kaw-cell ua npuas ncauj.Cov ntawv thov kev tsim vaj tsev thiab kev tsim kho suav nrog ib ncig ntawm ob feem peb ntawm kev thov rau nthuav dav polystyrene.Nws yog siv rau rwb thaiv tsev ntawm (kab noj hniav) phab ntsa, ru tsev thiab pob zeb hauv pem teb.Vim nws cov khoom siv xws li qhov hnyav, rigidity, thiab formability,nthuav polystyrenetuaj yeem siv rau ntau yam kev siv, piv txwv li cov tais, phaj thiab cov thawv ntses.
Txawm hais tias ob qho tib si nthuav thiab extruded polystyrene muaj cov qauv kaw-cell, lawv permeable los ntawm dej molecules thiab tsis tuaj yeem suav tias yog vapor barrier.Hauv kev nthuav dav polystyrene muaj qhov sib txawv nruab nrab ntawm qhov nthuav dav kaw-cell pellets uas tsim kom muaj kev sib txuas ntawm cov kab sib txuas ntawm cov pellets sib txuas.Yog tias cov dej khov rau hauv dej khov, nws nthuav dav thiab tuaj yeem ua rau polystyrene pellets tawg tawm ntawm cov npuas dej.
Post lub sij hawm: Aug-17-2022