Yuav ua li cas urethane ua npuas ncauj yog dab tsi?

Cov txheej txheem:

Yuav ua li cas urethane ua npuas ncauj yog dab tsi?
Yuav ua li cas urethane ua npuas ncauj yog dab tsi?
Anonim

Polyurethane yog ib qho uas nquag ntsib polymer uas muaj cov organic koom nrog los ntawm carbamate txuas. Nyob rau hauv sib piv rau lwm yam polymers xws li polyethylene thiab polystyrene, polyurethane yog tsim los ntawm ntau yam ntawm cov ntaub ntawv pib thiab yog li ntawd yog ib chav kawm ntawm polymers, es tsis yog ib tug txawv compound.

Urthane ua npuas ncauj yog dab tsi?

Polyurethane ua npuas ncauj yog tsim by reacting di-isocyanates thiab polyols. Ob leeg ntawm cov khoom no yog muab los ntawm cov roj crude. Polyols kuj tseem tuaj yeem ua los ntawm cov roj ntuj los ntawm cov khoom siv txuas ntxiv. Thaum cov khoom xyaw no sib tov, lawv hnov mob thiab ua npuas ncauj.

Puas urethane ua npuas ncauj tsis zoo rau koj txoj kev noj qab haus huv?

Ntev ntev raug rau cov tshuaj roj av hauv cov khoom xws li cov khoom siv urethane tuaj yeem cuam tshuam raupaj hlwb thiab tiv thaiv kab mobthiab ua rau muaj mob xws li mob qog noj ntshav, mob hlwb, autoimmune tsis muaj zog, mob hawb pob thiab ua xua, infertility, nchuav menyuam thiab tus cwj pwm tsis zoo ntawm menyuam yaus.

Qhov txawv ntawm Styrofoam thiab urethane ua npuas ncauj yog dab tsi?

Polystyrene yog tsim ua ntej rau cov hlau vaj huam sib luag thiab feem ntau yog glued rau ob sab pem hauv ntej thiab nraub qaum ntawm sab hauv ntawm lub vaj huam sib luag. Nws tuav nws zoo thiab haum zoo dua li qhib cell polyurethane nyob rau lub sij hawm ntev thiab tsis degrade, deform, los yog poob R-Value. … Ntawm ob cov ntaub ntawv, polyurethane yog cov khoom zoo dua.

Y Yuav ua li cas yog polyurethane ua npuas ncauj zoo rau?

Yooj yim polyurethane ua npuas ncauj yog sivua cushioning rau ntau yam ntawm cov neeg siv khoom thiab cov khoom lag luam, nrog rau cov ntaub pua chaw, rooj tog zaum, tsheb sab hauv, ntaub pua plag hauv qab thiab ntim khoom. Flexible foam tuaj yeem tsim nyob rau hauv yuav luag txhua yam duab thiab khov kho. Nws yog lub teeb, ruaj khov, txhawb nqa thiab xis nyob.

Pom zoo: