Nrog rau txoj kev loj hlob thiab nrov ntawm lub tsev system rwb thaiv tsev,Txau nruj ua npuas ncauj polyurethaneplays lub luag haujlwm loj hauv kev tsim cov kab hluav taws xob. Cov tshuaj tsuag nruj ua npuas ncauj polyurethane rwb thaiv tsev cov txheej txheem kev daws teeb meem tuaj yeem txo cov cua sov siv hluav taws xob hauv ib cheeb tsam thiab txhim kho kev siv hluav taws xob los ntawm kev txo cov hluav taws xob poob. On-site sprayed rigid foam polyurethane muaj zoo heev thermal rwb thaiv tsev zog, zoo kaw cell ratio, thiab yog ib tug zoo hydrophobic khoom. Nws yog kev ntseeg siab ntawm kev ua tau zoo thiab kev ua haujlwm zoo.
1. Dab tsi yog polyurethane txau?
Polyurethane txau yog ib qho polymer ua los ntawm isocyanate thiab polyether ua cov ntaub ntawv tseem ceeb. Nws yog tov nrog cov khoom tshwj xeeb thiab foamed on-site los ntawm high-pressure txau nrog kev pab los ntawm ntau yam additives xws li foaming agents, catalysts, thiab nplaim retardants. Polyurethane rigid ua npuas ncauj yog cov khoom siv hluavtaws tshiab nrog thermal rwb thaiv tsev thiab dej tsis zoo. Nws thermal conductivity tsawg, tsuas yog 0. 022 ~ 0.024W/(m².k). Polyurethane spray nplaim nplaim retardant qib B1 thiab B2 tuaj yeem siv tau.
Rigid polyurethane composite cov ntaub ntawv muab faib ua ob yam: isocyanate thiab composite polyether: feem ntau hu ua cov ntaub ntawv dub thiab cov ntaub ntawv dawb. Tom qab ob qho tib si sib xyaw thiab sib xyaw ua ke, cov tshuaj tiv thaiv polymerization tshwm sim los tsim kom muaj polyurethane rigid ua npuas ncauj nrog ib qho kev ywj pheej kaw-cell qauv. Nws yog ib qho zoo tagnrho cov khoom siv hluav taws xob tsis tshua muaj hluav taws xob nrog cov thermal conductivity me me, txuag hluav taws xob thiab kev poob siab, muaj zog yoog raws, thiab tuaj yeem ua tau prefabricated. Moulding, los yog nyob rau ntawm qhov chaw txhaj tshuaj molding.
2. Cov yam ntxwv ntawm polyurethane txau
Polyurethane txau yog siv dav thiab tsim nyog rau lub suab rwb thaiv tsev thiab thermal rwb thaiv tsev ntawm cov plag tsev sab nrauv ntawm cov tsev lag luam, cov vaj tse pej xeem, thiab steel qauv factories.
Pem teb rwb thaiv tsev project: Raws li tus tsim yuav tsum tau, rigid ua npuas ncauj polyurethane yog siv los ua lub ntsiab lub cev, thiab kuj yuav tsum matched nrog rau cov khaubncaws sab nraud povtseg xws li perforated boards. Nws tsis tsuas yog muaj kev ua haujlwm ntawm thermal rwb thaiv tsev thiab suab rwb thaiv tsev, tab sis kuj zoo nkauj thiab muaj cov nyhuv zoo nkauj.