xov xwm

Hauv cov xim pleev xim dej, emulsions, thickeners, dispersants, solvents, leveling agents tuaj yeem txo qhov nro ntawm cov xim, thiab thaum cov kev txo qis no tsis txaus, koj tuaj yeem xaiv tus neeg sawv cev ntub dej substrate.

Thov nco ntsoov tias qhov kev xaiv zoo ntawm substrate wetting tus neeg saib xyuas tuaj yeem txhim kho cov cuab yeej qib ntawm cov xim dej, yog li ntau cov substrate wetting agents yog leveling agents.

Cov hom ntawm cov substrate wetting agents yog: anionic surfactants, nonionic surfactants, polyether-hloov polysiloxanes, acetylene diols, thiab lwm yam. Cov kev cai yooj yim rau substrate wetting agents yog high efficiency nyob rau hauv txo deg nro, zoo system compatibility (tshwj xeeb tshaj yog rau high-gloss dej- Raws li cov xim), feem ntau soluble hauv dej, npuas npuas thiab tsis ruaj khov npuas, tsis tshua muaj rhiab heev rau dej, thiab yuav tsis ua rau cov teeb meem rov qab thiab adhesion poob.

Feem ntau siv cov substrate wetting agents yog ethylene oxide adducts (piv txwv li, polyoxyethylene-nonylphenol hom), polyorganosilicon hom thiab non-ionic fluorocarbon polymer hom tebchaw thiab lwm hom, uas fluorocarbon polymer hom wetting tus neeg saib xyuas kom txo qhov nro yog qhov tseem ceeb tshaj plaws.

Kev xav tsis zoo, cuam tshuam los ntawm kev tshaj tawm, yog tias cov txiaj ntsig ntawm kev txo qhov nro ntawm ib leeg yog txiav txim siab thaum nws yog qhov kev sib kis ntawm cov txheej txheem ntawm cov txheej txheem uas tseem ceeb dua, thiab cov cuab yeej no tseem muaj feem xyuam nrog kev sib raug zoo ntawm cov txheej txheem thiab kev tsim nyog. nto nro.

Kev sib kis muaj peev xwm ntawm tus neeg sawv cev ntub dej tuaj yeem txiav txim siab los ntawm kev ntsuas qhov sib kis ntawm ib qho ntim (0.05 ml) ntawm cov xim pleev xim rau ntawm cov txheej txheem ua ntej coated tom qab ntxiv cov concentration ntawm substrate wetting agent rau cov xim.Cov neeg ua dej ntub dej.

Feem ntau, tus nqi ntawm qhov nro ntawm qhov chaw tsis tuaj yeem sib haum rau lub peev xwm ntub dej ntawm cov xim thaum siv, vim tias cov xim yog nyob rau hauv qhov kev ntxhov siab thaum lub sij hawm tsim kho, thiab qhov qis dua qhov nro ntawm qhov nro ntawm lub sijhawm no, qhov zoo dua rau ntub dej.Fluorocarbon surfactants tsuas yog txo qhov nro ntawm qhov chaw zoo li qub, uas yog ib qho laj thawj vim li cas kev siv fluorocarbon surfactants tsis tshua muaj ntau dua li cov silicones.

Xaiv cov kuab tshuaj uas tsim nyog kuj tuaj yeem muaj qhov zoo ntawm substrate wetting nyhuv.Vim tias cov kuab tshuaj tau sib haum nrog lub kaw lus, qhov dynamic nto nro yog tsawg.

Kev saib xyuas tshwj xeeb: yog tias tus neeg sawv cev ntawm lub substrate wetting tsis raug xaiv kom raug, nws yuav tsim ib txheej molecular ntawm lub substrate, yog li kev sib raug zoo nrog cov txheej txheem txheej tsis zoo ntxiv lawm, uas yuav cuam tshuam rau adhesion.

Ob peb qhov sib txawv wetting neeg sawv cev tuaj yeem sib xyaw kom daws tau qhov nyuaj substrate wetting.