Polyurethane nplaum nplaumsawv cev rau ib qho ntawm ntau yam thiab siab tshaj -kev ua tau zoo ntawm kev sib koom ua ke kev daws teeb meem muaj nyob rau hauv cov kev lag luam niaj hnub tsim thiab kev tsim kho. Feem ntau hu ua PU adhesives, cov khoom siv polymer siab heev yog tsim los ntawm cov tshuaj tiv thaiv ntawm isocyanates thiab polyols, uas ua rau muaj kev sib txuas ntawm urethane. Paub txog lawv qhov tshwj xeeb hloov tau yooj yim, lub zog tensile zoo tshaj plaws, thiab zoo kawg li tiv thaiv ib puag ncig kev ntxhov siab xws li ya raws, kub hloov pauv, thiab tshuaj lom neeg raug, lawv muab cov khoom siv ruaj khov nyob rau hauv ntau hom kev siv.
Kev siv dav dav ntawm polyurethane adhesives stems los ntawm lawv lub peev xwm tshwj xeeb los koom nrog cov khoom sib txawv seamlessly. Hauv kev lag luam automotive, cov tuam txhab tso siab rau lawv rau kev sib koom ua ke, kev teeb tsa lub tshuab cua, thiab sib sau cov khoom siv sab hauv, uas tswj kev vibration thiab thermal expansion yog qhov tseem ceeb. Txoj kev tsim kho siv cov nplaum nplaum no rau hnyav -cov haujlwm ntoo lamination, kev teeb tsa hauv pem teb, thiab sib sau ua ke insulated sandwich panels vim lawv cov huab cua tsis zoo. Tsis tas li ntawd, vim tias lawv tsim cov ntawv cog lus tshwj xeeb nrog cov yas, hlau, ntoo, thiab roj hmab, lawv tau siv ntau hauv kev tsim cov khau, textile lamination, thiab cov khoom ntim tau yooj yim.
Txhawm rau kom haum rau kev lag luam sib txawv, cov nplaum polyurethane feem ntau muab faib ua peb pawg loj raws li lawv cov qauv tshuaj thiab cov txheej txheem kho. Cov thawj qeb muaj xws li ib leeg -cov khoom noo noo- kho tshuab, uas siv cov av noo nyob ib puag ncig los pib txoj kev sib txuas ntawm tus ntoo khaub lig-txoj kev sib txuas thiab tau txais txiaj ntsig zoo hauv kev tsim kho kom yooj yim rau kev thov. Cov qeb thib ob suav nrog ob -cov khoom siv, uas muaj cov khoom siv thiab cov tawv tawv sib xyaw ua ke tam sim ua ntej daim ntawv thov, uas muaj kev kho sai sai tsis muaj av noo thiab zoo tagnrho rau siab - cov kab sib dhos ceev. Cov qeb thib peb suav nrog reactive kub-cov nplaum polyurethane yaj, uas yog siv los ua cov kua rhuab, muab lub zog ntsuab ntsuab tam sim ntawd thaum txias, thiab tom qab ntawd kho cov tshuaj nyob rau lub sijhawm kom ua tiav cov cua sov thiab noo noo siab tshaj plaws.
Rau cov lag luam nrhiav kev daws teeb meem kev sib raug zoo tshuaj lom neeg, kev nkag siab txog cov khoom tshwj xeeb thiab pawg ntawm polyurethane adhesives yog qhov tseem ceeb rau kev txhim kho kev tsim khoom thiab kev ua haujlwm ntev. Raws li kev lag luam thoob ntiaj teb xav tau lub teeb yuag, ruaj khov, thiab eco- cov ntaub ntawv tus phooj ywg, kev siv cov kuab tshuaj siab tshaj -dawb polyurethane bonding thev naus laus zis txuas ntxiv mus, cementing nws cov xwm txheej ua ib feem tseem ceeb hauv kev tsim khoom niaj hnub thiab kev tsim vaj tsev.