Cov European Union tab tom pib hloov pauv mus rau huab cua nruab nrab kev lag luam nrog daim ntawv qhia hauv European Green deal. European Green deal yuav muaj kev cuam tshuam tsis tau pom dua rau txhua qhov kev lag luam thoob plaws Tebchaws Europe thiab lub ntiaj teb, tsis yog tsawg kawg ntawm tag nrho cov polyurethane sector. Los ntawm 2050, European Union lub hom phiaj los ua ib qho kev lag luam ruaj khov thiab huab cua nruab nrab, thaum twb txo cov pa roj carbon monoxide emissions los ntawm 55% los ntawm 2030. European Green Deal suav nrog kev nqis tes ua tseem ceeb los txhawb kev lag luam polyurethane rau kev lag luam huv thiab ncig.
Qhov kev sib tw tom ntej yog yuav ua li cas tig Green Deal daim phiaj xwm rau hauv kev muaj tiag. Nws yog ib qho kev ua haujlwm loj heev thiab cov khoom muaj txiaj ntsig ntawm polyurethanes muab cov kev daws teeb meem zoo los daws ntau qhov teeb meem ntawm Green Deal. Ib qho tseem ceeb ntawm Green Deal yog txav los ntawm tus qauv linear mus rau kev lag luam ncig. Kev lag luam ncig yog ib qho qauv ntawm kev tsim khoom thiab kev siv, uas suav nrog kev sib koom, xauj, rov siv dua, kho, kho dua tshiab thiab rov ua dua cov ntaub ntawv thiab cov khoom uas twb muaj lawm ntev li ntev tau. Nyob rau hauv txoj kev no, lub neej voj voog ntawm cov khoom yog txuas ntxiv.
Txhawm rau xa cov ambitions los ntawm 2050, lub polyurethane kev lag luam tau pib ib tug series ntawm teg num nrog rau kev siv cov recycled cov kev pab cuam thiab kev loj hlob ntawm recycling technologies kom txo tau pov tseg thiab txo CO2 emissions.
Polyurethane ua npuas ncauj yog thermoset polymer. Contrary to thermoplastics, thermoset plastics muaj peev xwm ua kom nruj thaum rhuab los yog kho. Vim nws lub teeb yuag thiab cov khoom tshwj xeeb, polyurethane ua npuas ncauj yog siv rau ntau yam kev siv.
Nws tuaj yeem hloov kho kom nruj lossis hloov pauv, nrog rau kev sib koom ua lag luam ntawm 50:50. Nyob ib ncig ntawm 90% ntawm PU ua npuas ncauj yog siv rau hauv txaj, upholstery thiab automotive kev lag luam. Tus so yog siv ntau yam kev siv, xws li chav ua noj sponges, khau insoles los yog acoustic rwb thaiv tsev, ntawm ntau pua ntawm lwm yam kev siv.
PU rigid ua npuas ncauj yog cov khoom siv hluav taws xob zoo tshaj plaws uas siv rau hauv ntau lub tsev thiab kev siv. Ua tsaug rau nws cov thermal conductivity tsawg thiab ua haujlwm siab, nws yuav txuag tau ntau dua 100 npaug ntawm lub zog xav tau rau nws cov khoom tsim tawm thaum nws lub neej 50 xyoo - tej zaum ntau dua - hauv cov tsev.
Polyurethane ua npuas ncauj yog cov khoom siv ruaj khov, feem ntau ua kom kav ntev rau tag nrho lub neej ntawm cov khoom uas muaj nws. Thaum PU mus txog qhov kawg- ntawm-Lub neej theem - tom qab siv ntau xyoo lawm - nws nkag mus rau hauv cov dej khib nyiab, npaj rov qab siv dua lossis rov siv dua.
