Cov lus qhia siv rau Splicing Glue nyob rau lub caij ntuj sov
Nyob rau hauv ib puag ncig kub thaum lub caij ntuj sov, viscosity ntawm splicing kua nplaum yuav txo los ntawm kwv yees li 10-20% piv rau qhov kub thiab txias. Nrog rau qhov kub thiab txias, kev ua haujlwm molecular nce, uas ua rau cov dej ntws zoo dua. Nws yog ib txwm muaj rau cov viscosity ntawm tag nrho cov adhesives kom nce nyob rau hauv qis kub thiab txo nyob rau hauv high kub, nrog ib tug raug fluctuation ntawm ib ncig ntawm 20% nyob rau hauv ib txwm kub variations. Nws yog ib qho tseem ceeb kom nkag siab tias qhov tseem ceeb viscosity tsuas yog cuam tshuam txog lub xeev ntawm cov nplaum thiab tsis cuam tshuam nrog lub zog nplaum; viscosity ≠ bonding zog.
Kev daws:Thaum siv cov kua nplaum sib txuas, xyuas kom muaj cov ntawv thov kom raug, thiab siv nws sai sai nrog qhov sib xyaw me me. Nws raug nquahu kom siv cov kua nplaum sib xyaw hauv 30 feeb. Tsis txhob siv cov nplaum nplaum uas tau dhau nws lub sijhawm ua haujlwm.
Nyob rau lub caij ntuj sov, kev sib txuas ntawm kev sib txuas ntawm cov nplaum nplaum nrog cov tshuaj tua kab mob nrawm nrawm heev hauv qhov chaw kub kub.
Tom qab sib tov, splicing kua nplaum undergoes tus ntoo khaub lig-linking cov tshuaj tiv thaiv. Cov pab pawg isocyanate (-NCO) nyob rau hauv tus neeg sawv cev curing react chemically nrog hydroxyl pawg (-OH) nyob rau hauv lub ntsiab tus neeg sawv cev thiab ntoo, tsim complex, loj molecular lug. Thaum lub caij ntuj sov kub, qhov tshuaj tiv thaiv no nrawm nrawm heev. Txawm hais tias cov kua nplaum sib xyaw ua ke tuaj yeem siv tsis pub dhau lub sijhawm luv luv ncaj qha cuam tshuam rau kev sib txuas ntawm cov ntoo.
Kev daws:Siv cov kua nplaum sib xyaw ua ke hauv 30 feeb kom tsis txhob muaj kev sib txuas ntawm lub zog vim qhov ua tiav ntawm cov tshuaj tiv thaiv. Nws yog ib qho tseem ceeb uas yuav tsum nco ntsoov tias qib ntawm cov tshuaj tiv thaiv ntawm cov isocyanate pawg (-NCO) hauv cov tshuaj tua kab mob thiab cov pab pawg hydroxyl (-OH) hauv cov ntoo ncaj qha cuam tshuam lub zog sib txuas thiab dej tsis kam ntawm cov ntoo spliced.
Nyob rau lub caij ntuj sov, kev ua haujlwm molecular ntawm splicing kua nplaum yog txhim kho, ua rau kom qhuav sai.
Kev daws:Tom qab siv cov kua nplaum, ua kom tiav cov haujlwm nias nyob rau hauv kwv yees li 3-5 feeb, nrog lub sijhawm ntev tshaj plaws ntawm 10 feeb. Kev ua tsis tiav yuav ua rau muaj qhov tsis sib haum xeeb vim yog tsim cov yeeb yaj kiab ntawm cov nplaum nplaum, ua rau muaj teeb meem zoo. Yog li ntawd, tsis hais hom ntawm cov kua nplaum, nws yog ib qho tseem ceeb uas yuav tsum tau siv cov kua nplaum kom sai li sai tau thaum ua kom ntseeg tau tias daim ntawv thov zoo.
Nyob rau hauv lub caij ntuj sov, lub foaming tshwm sim ntawm splicing kua nplaum ua ntau pronounced.
Nyob rau hauv lub caij ntuj sov huab cua, qhov sib ntxiv ntawm curing tus neeg sawv cev rau splicing kua nplaum accelerates tus txheej txheem foaming piv rau lwm lub caij. Tsis pub dhau lub sijhawm ua haujlwm, qhov no tsis cuam tshuam rau kev siv cov kua nplaum. Txawm li cas los xij, qhov sib piv ntau dhau tuaj yeem ua rau lub sijhawm ua haujlwm luv thiab ua rau muaj qhov tshwm sim foaming.
Kev daws:Hauv kev ua haujlwm kub kub, tswj tus neeg sawv cev kho kom zoo, txo qis los ntawm 1-2 cov ntsiab lus. Nws raug nquahu kom siv cov kua nplaum sib xyaw hauv 30 feeb, tshwj xeeb tshaj yog nyob rau hauv qhov kub thiab txias ua haujlwm.
