Qhov zoo ntawmpolyurethane txau:
Nws muaj kev ua haujlwm zoo thermal rwb thaiv tsev thiab tsis tshua muaj thermal conductivity, uas zoo dua li polystyrene board. Tam sim no nws yog qhov zoo tshaj plaws thermal rwb thaiv tsev khoom;
Nws muaj kev ua tau zoo ntawm cov dej tsis zoo, nrog kev sib khi ntawm 95%, thiab cov dej nag yuav tsis nkag mus rau hauv qhov;
Polyurethane txau muaj qhov ruaj khov, kev ua haujlwm siab ntau lawm, ceev molding ceev thiab ua haujlwm siab;
Kev siv tshuaj tsuag txheej tuaj yeem siv ncaj qha ua cov tshuaj tsuag foaming ntawm substrates ntawm ntau yam duab;
Lub neej ua haujlwm ntev txog 30 xyoo, thiab kev ua haujlwm yuav tsis hloov pauv ntau;
Yuav ua tau prefabricated, tuaj yeem foamed ntawm qhov chaw, tuaj yeem nchuav, tuaj yeem txau, thiab kev tsim kho tuaj yeem hloov pauv raws li xav tau
Pem teb thermal rwb thaiv tsev thiab suab rwb thaiv tsev polyurethane cov khoom muaj cov thermal conductivity tsawg thiab muaj zog sib txuas lub zog, uas tuaj yeem tiv thaiv cov qauv tseem ceeb ntawm lub tsev, ua kom lub neej ua haujlwm ntawm lub tsev, thiab txo qhov yaig ntawm lub tsev. Nrog rau qhov sib ntxiv ntawm kev hloov kho graphite nplaim retardant, nws tuaj yeem ncav cuag B1 qib tsis kam. Cov qauv kev txhim kho ntawm cov khoom siv tuaj yeem txhim kho lub suab rwb thaiv tsev sab hauv tsev yam tsis muaj kev txo qis thermal rwb thaiv tsev ua haujlwm ntau dhau. Cov txheej txheem kev tsim kho tsis tshua muaj kuab paug ib puag ncig, thiab muaj cov yam ntxwv ntawm kev ua haujlwm yooj yim thiab yooj yim, lub sijhawm luv luv, thiab kev tsim kho sai.
Disadvantages ntawm polyurethane txau:
Lub foaming tus nqi yuav txo qis dua 10 degrees, thiab cov khoom raug txwv los ntawm lwm yam mob thaum siv.
Cov tshuaj tsuag molding ceev yog ceev, thiab nws tsis yooj yim rau tshuaj tsuag nws smoothly. Nws yog ib txwm muaj qhov tsis sib xws;
Kev sib cuag ncaj qha mus ntev nrog cov ntaub ntawv dub thiab dawb thaum lub sij hawm txau polyurethane tuaj yeem ua rau kiv taub hau, mob taub hau, xeev siab thiab ntuav, thiab mob hnyav tuaj yeem tawg sai sai.
3. Polyurethane txau txheej txheem thiab cov teeb meem tshwm sim
Cov ntsuas kev ua tau zoo ntawm polyurethane txau yuav tsum ua raws li cov cai ntawm JC/T998-2006 "Tshuaj Polyurethane Rigid Foam Insulation Materials". Thaum lub sijhawm ua haujlwm ntawm qhov chaw txau, qhov kub ntawm qhov chaw yuav tsum tsis txhob qis dua 10 degree, lub zog cua yuav tsum tsis txhob siab tshaj 5m / s (theem 3 cua), qhov txheeb ze av noo yuav tsum tsawg dua 80%, thiab tsis muaj kev tsim kho. hnub los nag.
Yog hais tias lub npuas yog txawv txav thaum lub sij hawm txau, lub qhov moj tej tawg yog loj, ua npuas ncauj yog dub vim yog cov khoom dub ntau dhau, thiab cov npuas dej yog dawb thiab mos vim yog cov khoom dawb ntau dhau. Koj tuaj yeem xa mus rau qhov laj thawj:
Yog tias qhov sib tov tsis zoo, yuav muaj ib qho interlayer nyob rau hauv nruab nrab ntawm cov npuas dej thiab hauv zos shrinkage;
Tawm ntawm kev faib ua feem, xov thiab shrinking;
Qhov kub tsis haum, qhov foaming me me dhau los yog qhov hluav taws kub siab dhau