Kev Ntsuam Xyuas Thiab Kev Siv Cov Kev Paub Ntawm Dej-raws li Tus Neeg Saib Xyuas Dej

Cov yam ntxwv tseem ceeb ntawm cov qauv molecular ntawm cov neeg ua dej ntub dej yog qhov kawg ntawm cov molecule muaj ib pawg hydrophilic (chain ntu), thiab lwm qhov kawg muaj ib pawg hydrophobic (chain ntu) ntawm cov tshuaj lom neeg. Yooj yim muab tso, ib hom tshuaj lom neeg uas cov molecules muaj hydrophilicity thiab hydrophobicity, feem.
Siv cov dej-raws li cov neeg ua dej ntub dej ua piv txwv, peb yuav qhia rau koj txog cov txheej txheem ntub dej ntawm cov neeg ua dej ntub dej:
Thaum dej-raws li resin coated rau ntawm qhov chaw ntawm lub substrate, ib feem ntawm tus neeg sawv cev ntub dej yog nyob rau hauv qab ntawm txheej, nyob rau hauv kev sib cuag nrog lub wetting nto. Cov saw hydrophilic ntu ntu adsorb ntawm cov khoom nto, thiab cov pawg hydrophilic txuas mus rau sab nraud rau hauv dej. Kev sib cuag ntawm cov dej thiab cov substrate ua kev sib cuag ntawm cov dej thiab hydrophilic pawg ntawm cov neeg ua dej ntub dej, tsim cov qauv sandwich nrog cov ntaub ntub dej ua cov txheej txheem nruab nrab. Ua kom lub sij hawm aqueous yooj yim kis tau, yog li ua tiav lub hom phiaj ntawm kev ntub dej.
Lwm qhov ntawm cov dej-raws li tus neeg sawv cev ntub dej muaj nyob rau saum npoo ntawm cov kua. Nws cov pab pawg hydrophilic txuas mus rau hauv cov dej ua kua, thaum cov pab pawg hydrophobic raug huab cua los tsim ib txheej txheej txheej, txo qhov nro ntawm cov txheej txheej thiab txhawb kev ntub dej ntawm cov txheej. Lub substrate yog siv los ua kom tiav lub hom phiaj ntawm kev ntub dej.

1. Hom tshuaj ntub dej
Raws li cov qauv tshuaj, cov neeg ua haujlwm ntub dej tam sim no ntawm kev ua lag luam feem ntau suav nrog cov organic silicon, anionic, non-ionic, thiab lwm yam. Ntawm lawv, cov organic silicon wetting agents feem ntau suav nrog polyether hloov cov organic silicon, anionic wetting agents feem ntau suav nrog epoxyethane adducts, thiab tsis yog. -ionic wetting agents feem ntau suav nrog: ionic wetting agents feem ntau suav nrog fluoropolymer.
Raws li cov khoom ntawm kev ntub dej, nws tuaj yeem muab faib ua substrate wetting type, wetting leveling agent, thiab wetting dispersant.

2. Kev ntsuam xyuas qhov ua tau zoo ntawm cov khoom siv dej ntub dej
Peb tuaj yeem paub tias qhov muaj peev xwm ntub dej ntau dua, qhov kev sib kis tau zoo dua. Hauv kev tsim khoom thiab kev tshawb fawb thiab kev tsim kho tiag tiag, peb muab qhov sib npaug ntawm cov dej-raws li cov resin, ntxiv ib qho sib npaug ntawm tus neeg sawv cev ntub dej, npaj cov txheej txheem dej-raws li qub nrog tib tus neeg sawv cev ntub dej, thiab tom qab ntawd siv rau tib yam. substrate los ntsuas qhov kawg kis cheeb tsam. Lub peev xwm ntub dej ntawm tus neeg sawv cev ntub dej yog txiav txim siab raws li qhov loj ntawm qhov chaw sib kis.

3. Muaj kev paub txog kev siv cov khoom ntub dej hauv cov dej
Hauv kev tsim khoom tiag tiag, thaum xav txog lub peev xwm ntub dej ntawm cov resin, tsis yog tsuas yog qhov nro zoo li qub tab sis kuj tseem yuav tsum tau xav txog, vim hais tias cov resin nyob rau hauv ib qho kev ntxhov siab thaum lub sij hawm txheej txheej. Qhov qis dua qhov dynamic nto nro, qhov zoo dua qhov wettability. Nyob rau ntawm lub sijhawm no, qhov nrawm dua tus neeg sawv cev ntub dej tsim ib txheej txheej txheej ntawm txheej txheej, uas yog, qhov nrawm dua cov txheej txheem molecular txheej txheej, uas yog qhov zoo dua rau ntub dej. Cov tshuaj fluorine uas muaj cov ntaub ntub dej feem ntau txo qhov nro ntawm qhov chaw zoo li qub, thaum cov organic silicon wetting agents tuaj yeem txo qhov nro dynamic; Yog li ntawd, hauv kev siv tswv yim, nws yog ib qho tseem ceeb heev uas yuav tau xaiv tus neeg sawv cev ntub dej kom tsim nyog raws li qhov xwm txheej tiag tiag.