Yuav ua li cas xaiv cov additives nyob rau hauv waterborne polyurethane resin

Yuav ua li cas xaiv cov additives nyob rau hauv waterborne polyurethane? Muaj ntau ntau yam dej-raws li polyurethane auxiliaries, thiab daim ntawv thov ntau yam, tab sis cov txheej txheem ntawm auxiliaries yog correspondingly. 

01

Lub compatibility ntawm additives thiab cov khoom kuj yog thawj yam yuav tsum tau txiav txim siab nyob rau hauv kev xaiv ntawm additives. Raws li ib txwm muaj, cov pab pawg thiab cov khoom siv yuav tsum tau sib xws (zoo ib yam hauv cov qauv) thiab ruaj khov (tsis muaj cov khoom tsim tshiab) hauv cov khoom, txwv tsis pub nws yog qhov nyuaj rau kev ua lub luag haujlwm ntawm lub koom haum pab.

02

Lub additive nyob rau hauv cov khoom siv additive yuav tsum tswj qhov kev ua tau zoo ntawm cov additive rau lub sij hawm ntev tsis hloov, thiab lub peev xwm ntawm cov additive los tswj cov thawj kev ua tau zoo nyob rau hauv daim ntawv thov ib puag ncig yog hu ua durability ntawm cov additive. Muaj peb txoj hauv kev rau cov neeg pabcuam kom poob lawv cov khoom qub: volatilization (molecular hnyav), rho tawm (solubility ntawm cov xov xwm sib txawv), thiab kev tsiv teb tsaws (solubility ntawm cov polymers sib txawv). Nyob rau tib lub sij hawm, cov additive yuav tsum muaj dej tsis kam, roj kuj thiab hnyav kuj. 

03

Nyob rau hauv cov txheej txheem ntawm cov ntaub ntawv, additives tsis tuaj yeem hloov qhov kev ua haujlwm qub thiab yuav tsis muaj qhov cuam tshuam rau kev tsim thiab ua cov tshuab thiab cov khoom siv tsim kho.

04

Additives rau cov khoom siv adaptability, additives yuav tsum tau raws li cov kev cai tshwj xeeb ntawm cov khoom nyob rau hauv cov txheej txheem siv, tshwj xeeb tshaj yog cov toxicity ntawm cov additives.

05

Txhawm rau kom tau txais txiaj ntsig zoo, daim ntawv thov ntawm cov tshuaj ntxiv yog feem ntau sib xyaw. Thaum xaiv ib qho kev sib xyaw ua ke, muaj ob qhov xwm txheej: ib qho yog daim ntawv thov ua ke kom tau txais txiaj ntsig zoo, thiab lwm qhov yog rau ntau lub hom phiaj, xws li tsis tsuas yog leveling tab sis kuj defoaming, tsis tsuas yog ntxiv lub teeb tab sis kuj antistatic. Qhov no yog xav txog: nyob rau hauv tib cov ntaub ntawv yuav tsim synergies ntawm cov additives (tag nrho cov nyhuv yog ntau dua li cov txiaj ntsig ntawm kev siv ib zaug), cov nyhuv ntxiv (tag nrho cov nyhuv yog sib npaug ntawm cov txiaj ntsig ntawm kev siv ib zaug) thiab cov nyhuv antagonistic (tag nrho cov nyhuv yog tsawg dua qhov sib npaug ntawm cov nyhuv ntawm kev siv ib zaug), yog li lub sijhawm zoo tshaj plaws los tsim kev sib koom ua ke, kom tsis txhob muaj cov nyhuv antagonistic.

 

Nyob rau hauv cov txheej txheem ntawm cov dej-raws li polyurethane ntxiv rau ib yam ntawm cov additives, nws yog ib qhov tsim nyog yuav tau xyuam xim rau nws lub luag hauj lwm nyob rau hauv ntau theem ntawm kev cia, kev tsim kho, daim ntawv thov, thiab xav txog thiab ntsuam xyuas nws lub luag hauj lwm thiab cov kev cuam tshuam nyob rau hauv seem tom ntej no. 

Piv txwv li, thaum cov dej-raws li polyurethane xim yog ua los ntawm ntub dej thiab dispersing agents, nws plays ib tug tej yam lub luag hauj lwm nyob rau hauv cia thiab kev tsim kho, thiab nws kuj yog zoo rau cov xim ntawm cov xim zaj duab xis. Feem ntau muaj cov nyhuv tseem ceeb, thiab tib lub sijhawm ua rau muaj kev cuam tshuam zoo ib txhij, xws li kev siv cov silicon dioxide, muaj cov nyhuv extinction, thiab nqus dej, deg anti-adhesion thiab lwm yam zoo.

Tsis tas li ntawd, hauv kev siv qee tus neeg sawv cev yuav muaj kev cuam tshuam tsis zoo, xws li kev sib ntxiv ntawm silicon-muaj defoaming tus neeg saib xyuas, nws cov nyhuv defoaming yog qhov tseem ceeb, tuaj yeem tau txais cov txiaj ntsig zoo, tab sis kuj los ntsuas seb puas muaj qhov shrinkage. , tsis yog huab, tsis cuam tshuam rau recoating thiab lwm yam. Tag nrho cov nyob rau hauv tag nrho cov, daim ntawv thov ntawm additives yog, nyob rau hauv qhov kawg kev ntsuam xyuas, ib tug tswv yim txheej txheem, thiab tsuas yog cov txheej txheem rau kev ntsuam xyuas yuav tsum yog qhov zoo ntawm daim ntawv thov.