Expanded polystyrene (EPS), extruded polystyrene (XPS) thiab polyurethane (PU) yog tam sim no peb cov khoom siv organic uas feem ntau siv rau hauv cov phab ntsa sab nraud.Ntawm lawv, PU tam sim no tau lees paub tias yog cov khoom siv rwb thaiv tsev zoo tshaj plaws hauv ntiaj teb, uas muaj cov thermal conductivity qis tshaj plaws ntawm tag nrho cov ntaub ntawv rwb thaiv tsev.Thaum qhov ceev ntawm PU tawv yog 35 ~ 40 kg / m3, nws thermal conductivity tsuas yog 0.018 ~ 0.023W / (mK).Cov nyhuv rwb thaiv tsev ntawm 25mm-thick PU ua npuas ncauj yog sib npaug ntawm 40mm-thick EPS, 45mm-thick mineral wool, 380mm-thick concrete or 860mm-tick dog dig cib.Rau kev ua tiav tib lub rwb thaiv tsev, nws cov tuab tsuas yog ib nrab ntawm EPS.

Ib daim ntawv tshaj tawm tsis ntev los no tau taw qhia tias ib qho ntawm cov laj thawj rau kev sib kis ceev ceev hauv Hangzhou Ice thiab Snow World yog tias PU cov ntaub ntawv rwb thaiv tsev thiab simulated yas ntsuab nroj tsuag siv rau hauv cov tsev tsis tau raws li qhov yuav tsum tau ua ntawm tsis muaj hluav taws kub thiab nplaim taws, thiab cov pa taws kis sai sai tom qab hluav taws.Qhov thib ob yog vim li cas qhov kev ntsuas hluav taws xob sib cais thiab kev tiv thaiv cov pa taws ntawm Hangzhou Ice thiab Snow World thiab lwm thaj chaw hauv lub tsev tsis nyob hauv qhov chaw.Cov phab ntsa sab hauv yog ua los ntawm PU sandwich vaj huam sib luag, thiab cov qhov rooj tawm yog cov qhov rooj thermal insulated es tsis txhob siv cov qhov rooj hluav taws kub, uas ua rau hluav taws kub hnyiab tau sai heev rau tag nrho lub tsev thib ob tom qab hluav taws kub.

Ib qho ntawm cov ua rau raug mob yog tias tom qab hluav taws kub hnyiab tawm, cov ntaub ntawv xws li PU thiab cov nroj tsuag yas tau kub hnyiab hauv thaj chaw loj, ua rau muaj cov pa luam yeeb kub kub, thiab cov pa taws tso tawm tau khaws cia thiab thaum kawg ua rau deflagration, ua rau muaj kev raug mob.

Tam sim ntawd, PU cov ntaub ntawv rwb thaiv tsev tau dhau los ua lub hom phiaj ntawm kev thuam thiab poob rau hauv cua daj cua dub ntawm pej xeem kev xav!

Xav txog cov nqe lus no, cov lus hais yog me ntsis ib sab, thiab muaj ob qhov tsis txaus ntseeg.

Ua ntej: PU rwb thaiv tsev cov ntaub ntawv thiab simulated yas ntsuab nroj tsuag siv nyob rau hauv lub tsev tsis tau raws li qhov yuav tsum tau ntawm tsis-combustibility thiab nplaim retardancy.

Raws li GB8624-1997 Classification for Burning Behavior of Building Products, B2-level polyurethane tuaj yeem hloov kho mus rau qib B1 tom qab ntxiv cov nplaim hluav taws tshwj xeeb.Txawm hais tias PU rwb thaiv tsev boards muaj cov yam ntxwv ntawm cov khoom siv organic, lawv tsuas tuaj yeem ncav cuag cov nplaim hluav taws kub ntawm B1 raws li cov txheej txheem tam sim no.Ntxiv mus, tseem muaj kev tsis sib haum xeeb thiab teeb meem hauv kev txhim kho thiab tsim khoom ntawm B1-theem PU rwb thaiv tsev boards.PU boards uas tsim los ntawm Suav cov tuam txhab me thiab nruab nrab feem ntau tuaj yeem ncav cuag B2 lossis B3 qib.Txawm li cas los xij, ntau lub tuam txhab loj hauv Suav teb tseem tuaj yeem ua tiav nws.PU rwb thaiv tsev boards yog tsim los ntawm kev sib xyaw polyether thiab PMDI (Polymethylene polyphenyl polyisocyanate) rau foaming cov tshuaj tiv thaiv thiab cais raws li B1 nplaim-retardant los ntawm tus qauv GB8624-2012.Cov khoom siv hluav taws xob no feem ntau yog siv rau hauv thaj chaw ntawm lub zog txuag lub tsev enclosures, loj-scale txias cia thiab txias saw rwb thaiv tsev.Nws tseem tuaj yeem siv rau kev tiv thaiv hluav taws thiab rwb thaiv tsev thermal hauv cov nroj tsuag, nkoj, tsheb, kev txuag dej thiab ntau lwm yam haujlwm.

Thib ob: Cov pa luam yeeb kis sai sai tom qab hluav taws kub thiab cov khoom siv PU rwb thaiv tsev yog tshuaj lom.

Muaj kev sib cav ntau txog cov tshuaj lom ntawm polyurethane, tshwj xeeb tshaj yog thaum muaj xwm txheej xws li PU cov ntaub ntawv hlawv.Tam sim no, kho polyurethane tau dav lees paub tias yog cov khoom tsis muaj tshuaj lom, thiab qee cov ntaub ntawv kho mob PU tau siv rau hauv cov khoom siv kho mob thiab cov khoom siv cog qoob loo.Tab sis tsis kho polyurethane tseem tuaj yeem ua rau lom.Rigid PU ua npuas ncauj yog ib yam khoom siv thermosetting.Thaum nws raug kub hnyiab, txheej carbonized yog tsim rau ntawm nws qhov chaw, thiab cov txheej carbonized tuaj yeem tiv thaiv cov nplaim taws los ntawm kev sib kis.EPS thiab XPS yog cov khoom siv thermoplastic uas yuav yaj thiab poob thaum raug hluav taws, thiab cov drips no tuaj yeem hlawv.

Hluav taws kub tsis yog tshwm sim los ntawm cov khoom siv rwb thaiv tsev nkaus xwb.Cov vaj tse yuav tsum raug suav hais tias yog ib qho system.Kev ua haujlwm tua hluav taws ntawm tag nrho cov kab ke cuam tshuam nrog ntau yam xws li kev tswj hwm kev tsim kho thiab kev saib xyuas txhua hnub.Nws yog ib qho tseem ceeb me me rau qhov muag tsis pom kev hais txog cov nplaim hluav taws kub ntawm cov khoom siv hauv tsev."Qhov tseeb, cov khoom siv nws tus kheej zoo.Qhov tseem ceeb yog siv nws kom raug thiab zoo. "Raws li thaum ntxov ntau xyoo dhau los, Li Jianbo, Tus Lwm Thawj Coj ntawm Tuam Tshoj Polyurethane Industry Association, tau rov hais dua cov teeb meem zoo sib xws hauv ntau lub rooj sib tham thiab kev sib tham.Kev tswj hwm qhov chaw tsis txaus ntseeg thiab kev saib xyuas tsis zoo ntawm cov khoom tsis tsim nyog thiab tsis ua raws cai yog qhov tseem ceeb ua rau hluav taws kub, thiab peb yuav tsum tsis txhob taw tes rau cov khoom siv thaum muaj teeb meem tshwm sim.Yog li txawm tam sim no, qhov teeb meem tseem muaj.Qhov muag tsis pom kev raws li qhov teeb meem ntawm cov ntaub ntawv PU, qhov kev txiav txim siab yuav dhau ib sab.

Tshaj tawm: tsab xov xwm tau hais los ntawm https://mp.weixin.qq.com/s/8_kg6ImpgwKm3y31QN9k2w (txuas txuas).Tsuas yog rau kev sib txuas lus thiab kev kawm, tsis txhob ua lwm yam kev lag luam lub hom phiaj, tsis sawv cev rau lub tuam txhab kev pom thiab kev xav, yog tias koj xav tau rov luam dua, thov hu rau tus thawj sau, yog tias muaj kev ua txhaum cai, thov hu rau peb tam sim ntawd kom tshem tawm cov txheej txheem.