Cov neeg tau txais kev pab feem ntau xav txog qhov teeb meem: ua npuas ncauj lossis polystyrene ua npuas ncauj, ua dab tsi zoo dua rau kev thov rau rwb thaiv tsev thiab rwb thaiv tsev suab? Qee tus tseem ntseeg tias nws yog cov ntaub ntawv zoo li qub.
Qhov tseeb no lees paub cov ntaub ntawv hauv Is Taws Nem. Feem ntau cov yuav, qhov no tshwm sim vim qhov tseeb tias lawv tau ua los ntawm polystyrene, tab sis nrog kev ua tib zoo saib koj tuaj yeem pom tias qhov sib txawv tseem muaj.
Qhov sib txawv ntawm ua npuas ncauj thiab polystyrene
Thaum ua polystyrene pellets, qhuav chav ua npuas
Lub ntsiab sib txawv ntawm cov ntaub ntawv no muaj raws li hauv qab no:
- Hauv kev siv tshuab ntau lawm ntawm cov qauv muaj qhov sib txawv. Polyfoam yog tsim siv kev ua cov kev ua ntawm polystyrene pellets nrog dej qhuav. Nthuav ntawm cov cua sov, lawv khov kho nrog txhua lwm yam, thaum lub sijhawm no micropores tau tsim. Polystyrene ua npuas ncauj lossis ua kom pom zoo – Qhov no yog nws lub npe lag luam, tsim los ntawm txoj kev ntawm "Extrusion". Polystyrene granules tau melted nyob rau hauv ob kis, molecular Bonds yog tsim, ib tus qauv tshwm sim.
- Kuj tseem muaj qhov sib txawv ntawm lub cev thiab cov yam ntxwv ua kom muaj txiaj ntsig los ntawm kev siv tshuab ntawm lawv ntau lawm. Yog tias peb hais lus ncaj qha, nthuav dav polystyrene nyob rau hauv cov paib sib cais yog zoo dua rau cov npuas dej.
Qhov sib txawv ntawm cov khoom muaj nuj nqis los ntawm thermal conductivity
Qhov zoo dua thermal conductivity, lub thinner yuav yog cov khoom siv
Dab tsi yog qhov zoo dua rau kev thov rau rwb thaiv tsev - polystyrene ua npuas ncauj lossis ua npuas ncauj?
Kev tshawb xyuas lub peev xwm ntawm cov ntaub ntawv nyob hauv kev txiav txim siab, lawv cov kev sib txawv tuaj yeem sau tseg.
Cov yam ntxwv tseem ceeb ntawm rwb thaiv tsev yog thermal conductivity.
Nrog nws cov tsawg zuj zus, kev ua tau zoo ntawm cov khoom siv nce, thiab nws ua tiav.
- Tus lej ntawm thermal conductivity ntawm polystyrene yog 0.028 w / mk;
- Polyfoos - 0.039 w / mk.
Xav txog cov ntsuas ntsuas no, nws tuaj yeem pom tau tias polystyrene ua npuas ncauj ntau tshaj tus yam ntxwv ntawm cov ua npuas ncauj, thiab tsis yog nws, tab sis feem ntau, lwm yam kev rwb thaiv tsev.
Paub meej tias qhov no tuaj yeem yog cov lus tseeb hauv qab no:
Tshooj nyob rau lub ncauj lus: Bhoens chav dej - los ntawm kev xaiv los teeb tsa
| № | Khoom | Thermal conductivity |
|---|---|---|
| ib | STYROFOAM | 0.039 |
| 2. | Minvata. | 0.041 |
| 3. | Reinforced Pob Zeb | 1,7 |
| plaub | Silate Masonry cib | 0.76 |
| tsib | Masonry ntawm cib nrog qhov | 0.5 |
| 6. | Glued ntoo bar | 0.16. |
| 7. | Ceramitobeton | 0.47 |
| yim | Gazilikat | 0.5 |
| cuaj | Ua Npuas Ua Npuas | 0,3. |
| 10 | Slevobeton | 0,6 |
Los ntawm cov neeg siv tshuab
Nthuav dav polystyrene tsawg dua li ua npuas dej yas
Nws yog ib qho tsim nyog tsis txhob hnov qab tias cov hmoov av polystyrene ua npuas yog ib qho zoo monolith, thiab cov lus yog ua npuas. Qhov no cuam tshuam rau lub zog ntawm cov ntaub ntawv.
Cov ua npuas ncauj polystyrene yog cov tiv taus los ntawm 0.4 mus rau 1 MPa, nws tus qauv nyob hauv thaj tsam yog 0.25-0.2 MPa thiab 0.0.2 MPA.
Nws paub zoo tias foam, raug rau cov neeg kho tshuab loj cuam tshuam, pib tsoo rau hauv cov npas me me thiab tawg. Lub polystyrene tseem khaws cia ruaj ruaj thiab ntsuas qhov sib txawv.
Lub ntom ntom ntawm extruded polystyrene ua npuas ncauj sib txawv los ntawm 30 mus rau 45 kg / m3, thiab foam sib txawv hauv thaj tsam ntawm 15-35 kg.
Los ntawm kev muaj peev xwm nqus dej
Polyfoam zoo dua nqus dej, uas yog qhov tsis zoo
Qhov no yog ib qho ntawm cov yam ntxwv ntawm cov khoom siv thermal rwb thaiv tsev, thiab cov cuab yeej no yuav tsum tsawg. Los ntawm kev nce kob, cov rwb thaiv tsev yuav poob nws cov yam tseem ceeb tshaj plaws, yuav sweet thiab, rau txhua tus, yuav pib lwj thiab vau.
Hauv polystyrene, uas muaj lub cellular muaj pes tsawg leeg, noo noo nqus xoom. Raus nws rau lub sijhawm ntev thiab ua rau hauv dej, nws tuaj yeem sau tseg tias kev nqus cov kua tuaj yeem nce mus txog 0.2% ntawm nws cov ntim.
Polyfoam, cais tawm los ntawm cov khoom sib xyaw, cov yeeb yam no yog qhov qis dua. Raus nws rau 24 teev rau hauv dej, nws tuaj yeem sau tseg tias cov khoom nqus 2% ntawm cov ntim, hauv 30 hnub nws yuav nqus 4%.
Yog li dab tsi zoo dua: npaus lossis polystyrene ua npuas ncauj? Tag nrho cov saum toj no ib zaug ntxiv ua pov thawj ntawm cov khoom siv hydrophobic khoom siv, tshwj xeeb tshaj yog tias nws yog siv los insulate cov tsev li hauv av, lub hauv paus thiab lub faadeade.
Rau refactory
Cov tshuaj tsw qab raws li ib qho tseem ceeb ntawm cov khoom yuav tsum tau insulated nrog lub xub ntiag ntawm cov qauv ntoo - nthab, vov tsev. Nws yuav tsum raug sau tseg tias ob yam khoom siv tau suav rau cov pab pawg nrog kev kub ntxhov. Yog xav paub ntxiv txog qhov sib txawv hauv cov ntaub ntawv, saib daim video no:Tshooj nyob rau lub ncauj lus: Woodrovnik hauv lub tebchaws ua koj tus kheej
Cov chaw nres tsheb tau pib ntxiv cov tshuaj tiv thaiv rau cov lus sau ua npuas dej thiab nthuav dav polystyrene - nrog nws cov kev pab rwb thaiv kev rwb thaiv tsev tus kheej. Yog tias tsis muaj kev sib cuag ncaj qha nrog hluav taws, cov ntaub ntawv yuav raug rub tawm hauv vib nas this.
Ntawm kev txiav tawm rau shrinkage
Tsis zoo li siv roj hmab yas, polystyrene tsis muaj txiaj ntsig rau shrinkage
Lub ntsiab tseem ceeb ntawm txhua tus rwb thaiv tsev yog shrinkage. Nrog xws li qhov xwm txheej zoo li no, muaj cov khoob uas txo cov ua tau zoo ntawm cov txheej txheem.
Polyfoam thaum rhuab yog nyob rau shrinkage, yog li nws tsis pom zoo kom siv nws hauv lub "sov pem teb" system.
Yog tias cov npuaj yog siv rau cov rwb thaiv tsev ntawm lub faadeade, nws yog ib qho tsim nyog los npog nws nrog dawb plaster, uas tiv thaiv kev tawm tsam ultraviolet rays.
Cov ua npuas ncauj polystyrene ua npuas yog yuav luag tsis yog coj los ntawm shrinkage thaum thov.
Ntawm kub viav vias
Qhov kub tshuav tau tso cai rau kev ua haujlwm nrog ob yam khoom - los ntawm - 50 txog + 75 degrees.
Yog tias koj tshaj li cov ntsuas no, cov khoom pib deform.
Polyfoam teeb nyob rau ntawm 310 degree, nthuav dav polystyrene - ntawm 450 degrees.
Kev kawm txog tsiaj thiab chaw ib ncig lawv
Cov muaj pes tsawg leeg ntawm cov ntaub ntawv no kiag li tsis muaj kev phom sij cov Cheebtsam, xws li Freon thiab Phenol. Tom qab lub sijhawm, cov rwb thaiv tsev tsis tau pib faib tshuaj ua yeeb yam, lawv tuaj yeem ua kom muaj kev ntseeg siab los cais cov vaj tse thiab cov vaj tse nyob.Txog Kev Pab Lub Neej
Cov kev tshawb fawb tau pom tias tus kab zauv, uas yog ntsia kom raug, tuaj yeem kav ntev txog 50 xyoo, khaws cia ib daim ntawv.
Yog tias cov nyiaj txiag muaj peev xwm ntawm cov neeg tau txais kev siv tsis ncav cuag nws ua ntej kev yuav khoom, cov npaus tuaj yeem siv tau. Nws, ntawm chav kawm, yog qis dua rau polystyrene ua npuas ncauj hauv cov ntaub ntawv tshwj xeeb, tab sis yuav yog cov khoom siv zoo tshaj los ntawm kev rwb thaiv tsev pheej yig tshaj. Yog xav paub ntxiv txog cov khoom ntawm polystyrene ua npuas ncauj, saib daim video no:
Yog tias koj xav txog txhua yam dua li, tom qab ntawd cov lus teb rau lo lus nug: Ua npuas ncauj lossis ua npuas ncauj tau zoo dua - yog qhov kev txiav txim siab zoo dua - tau txais kev txiav txim siab rau cov kauj ruam saum toj ntawm cov ua npuas ncauj.