UV number case thiab UV kua roj vanish yuav tsum tau yoog raws qhov viscosity ntawm lub tsho loj thaum txheej. Feem ntau, viscosity ntawm prepolymer tau txo los ntawm kev ntxiv 20% ~ 80% monomer. Nyob rau tib lub sijhawm, monomer polymerizes nws tus kheej thiab dhau los ua ib feem ntawm cov yeeb yaj kiab kho tau. Nws lub luag haujlwm hauv tus lej yog txhawm rau kho qhov viscosity, kho kom nrawm thiab kho cov yeeb yaj kiab cov yam ntxwv ntawm tus lej. Cov tshuaj nquag muaj kuj muaj" C=C" unsaturated ob daim ntawv cog lus, uas tuaj yeem yog acryloyl, methylpropionyl, yas thiab allyl. Hauv kev saib ntawm lub teeb pom kev nrawm tshaj plaws ntawm pab pawg acryloyl, feem ntau ntawm cov tshuaj nquag siv tam sim no yog acrylate monomers. Vim yog qhov sib txawv ntawm cov pab pawg acryloyl, nws tuaj yeem faib ua pab pawg ua haujlwm ib leeg thiab pab pawg ua haujlwm ob npaug. Cov txiaj ntsig tso tawm thiab kho kom nrawm ntawm ntau pab pawg ua haujlwm sib txawv sib txawv sib txawv. Feem ntau hais lus, ua haujlwm tau zoo dua, ua kom nrawm dua sai dua, tab sis qhov ua rau cov txiaj ntsig tsis zoo zuj zus.
Cov tshuaj nquag ua kom nquag plias, xws li styrene thiab thawj tiam acrylate monomers, muaj tshuaj lom heev. Qee cov acrylate monomers muaj qhov ua kom muaj zog ntawm daim tawv nqaij. Txhawm rau txhawm rau txo cov tawv nqaij ntawm qhov ua kom nquag plias, feem ntau muaj ob txoj hauv kev: ib qho yog txhawm rau ua kom lub cev hnyav ntawm monomers los ntawm lub nplhaib qhib polymerization ntawm ethylene oxide, propylene oxide thiab hexyl ester; Qhov thib ob yog hloov cov qauv ester ntawm monomers; Lwm qhov yog hloov pauv txoj kev dhau los ntawm kev haus cawv cawv. Thaum haus cawv ntxiv rau pab pawg acryloyl, daim tawv nqaij ua kom tawv nqaij ntawm ntau lub luag haujlwm monomer raug txo qis heev. Piv txwv li, thaum neopentyl glycol diacrylate tau sib xyaw los ntawm esterification, tus nqi pH (daim tawv nqaij khaus khaus qhov ntsuas) yog 4.96, thaum thaum nws tau sib xyaw los ntawm cov txheej txheem ntxiv, tus nqi pH raug txo mus rau 0.3.
Tsis ntev los no, qee cov monomers nrog cov khoom zoo tau tsim, xws li alkoxyacrylate, carbonate monoacrylate, imidazole monoacrylate, cyclic carbonate monoacrylate, epoxy silicone monomer, silicone acrylate thiab vinyl ether monomer. Thaum xaiv monomer, cov hauv paus ntsiab lus hauv qab no yuav tsum ua raws:
a Tsawg viscosity thiab zoo dilution nyhuv;
b. Kev kho sai;
c. Zoo adhesion ntawm cov ntaub ntawv;
d. Ua rau tawv nqaij me me thiab lom;
e. Tsis txhob hnov tsw hauv txheej.
