UV curing xim yog ib hom xim ntsuab ib puag ncig tiv thaiv xim, uas muaj cov yam ntxwv ntawm cov pob tshab siab, siab tawv thiab khawb tsis kam.Nws yog dav siv nyob rau hauv yas los yog hlau substrate roj tsuag txheej txheem.Qhov tshwm sim zoo heev uas cuam tshuam rau cov txheej txheem zoo thiab cov txiaj ntsig ntawm UV txau yog xim poob, uas yog hais tias, qhov adhesion ntawm UV curing xim thiab substrate tsis zoo.Tom qab ntawd peb yuav txheeb xyuas cov laj thawj thiab cov kev daws teeb meem ntawm qhov nyuaj adhesion los ntawm ob yam ntawm UV xim thiab txau substrate.
Yog vim li cas vim li cas UV curing xim yog ib qho nyuaj rau ua raws li substrate:
Los ntawm kev tsom xam ntawm UV curing xim, cov nyhuv ntawm UV txheej ntawm lub substrate tsis muaj zog ntawm kev nkag mus.Xav txog qhov kev ua tau zoo tom qab kho, qhov viscosity ntawm qis molecular hnyav resin system nce thiab fluidity txo, yog li cov ntub dej thiab nkag mus ntawm substrate tsis txaus.Tsis tas li ntawd, lub ntim ntim ntawm UV xim thaum kho thiab lub sijhawm ntawm cov tshuaj tiv thaiv sai yog ob yam.Cov qub yuav ua rau qhov sib txawv ntawm deformation ntawm txheej thiab substrate, yog li tsim kev ntxhov siab ntawm txheej;Qhov tom kawg yog vim cov tshuaj tiv thaiv sai, uas yuav ua rau tsis sib xws ntawm UV xim system qauv.
Los ntawm qhov kev xav ntawm substrate ntawm UV pleev xim, thawj qhov yuav tsum nkag siab yog lub luag haujlwm ntawm adhesion.Lub zog ntawm nws lub neej txiav txim siab seb cov xim thiab cov substrate tuaj yeem tau txais adhesion los tsim cov txheej txheej.Yog li ntawm no peb yuav tsum hais qhov cuam tshuam ntawm substrate polarity, crystallinity, nto zog thiab smoothness ntawm substrate nto adhesion.Tsis tshua muaj polarity lossis polarity, xws li PP yas, uas nyuaj rau cov roj, siab crystallinity thiab tsis tshua muaj zog nto, xws li PA nylon substrate, thaum lub smoothness yog qhov tseem ceeb nyob rau hauv stainless hlau hlau.Yog li ntawd, cov qauv molecular thiab cov khoom ntawm lub substrate kuj muaj kev cuam tshuam zoo rau qhov adhesion.Yog li ntawd, thaum cov xim UV tuaj yeem hloov kho, tus yuam sij los daws qhov teeb meem tsis zoo ntawm cov xim UV yog los txhim kho qhov adhesion ntawm substrate thiab UV xim.
Txoj kev los txhim kho qhov adhesion ntawm UV xim txheej thiab substrate:
Nyob rau hauv txoj kev ntawm kev daws cov adhesion ntawm UV curing xim sprayed rau ntawm yas los yog hlau nto, ib txheej ntawm static xim yog sprayed rau saum npoo ntawm lub substrate Sichuan adhesive kho tus neeg saib xyuas yog ib tug zoo tshuaj los txhim kho cov adhesion ntawm substrate thiab UV txheej. .Ua ntej, tus neeg sawv cev kho cov nplaum tuaj yeem ntub tag nrho cov substrate.Qhov thib ob, tus neeg saib xyuas kev kho mob muaj hydrogen bonded dawb radicals nrog cov pawg polar xws li hydroxyl ntawm substrate, uas ua rau cov yeeb yaj kiab ntau compact.Nyob rau tib lub sijhawm, tus neeg saib xyuas kev kho cov nplaum thiab cov xim tuaj yeem tsim cov tshuaj tiv thaiv, uas yuav ua ob peb lub substrate nto nrog UV txheej, thiab ntxiv txhawb kev tsim cov qib siab ntawm adhesion ntawm UV xim thiab substrate.
Post lub sij hawm: Jun-28-2022