xov xwm

Dispersing agent NNOfeem ntau yog siv nyob rau hauv lub tshav pob ntawm tshuaj dispersion, uas yog, xim, number case thiab lwm yam pigment paste sib tsoo. Tsis tas li ntawd, ntxiv dispersant nyob rau hauv resin los yog emulsion tuaj yeem txhim kho kev ua haujlwm ntawm lub cev tseem ceeb. Lub luag haujlwm tseem ceeb yog txhawm rau txo cov paj rwb, tiv thaiv kev poob dej thiab pab tawg. Peb tus yam ntxwv yog cov yam ntxwv tseem ceeb ntawm cov dispersants thiab feem ntau siv los txheeb xyuasDispersing agent NNO!

Ua ntej, txo cov viscosity thiab ua kom cov pigment load. Siv tsim nyogDispersing agent NNO, lub paste viscosity yuav raug txo kom tsawg. Qhov tshwm sim yog ua kom cov pigment load, txhim kho kev tsim khoom ua si lub luag haujlwm zoo.

Qhov thib ob, ntau tus neeg uas txo cov ntshav txhaws thiab txhim kho kev tsim kho engineering thiab kev ua tau zoo yuav ua cov kev tshawb fawb tshawb fawb thaum ntsuas cov thickeners. Kev sib cais tsis raug cai, ntiv tes kov thiab tsis kov qhov chaw yuav tshwm sim pom tseeb xim sib txawv, xim muaj peev xwm ntawm cov xim condensed yuav raug txo, ua rau muaj teeb meem ntawm toner thiab xim. Condensation ntawm cov xim pas dej kuj tuaj yeem pom los ntawm kev sim phaj ntws.

Thib peb, txhim kho pob tshab lossis kev pabcuam. Rau cov xim, qhov ntau pob tshab paste, qhov zoo dua. Rau cov xim dav dav, qhov siab dua ntawm cov xim nyom, qhov zoo dua. Qhov tseeb, nws tau ua nrog qhov loj ntawm cov xim. Qee cov ntaub ntawv qhia tau hais tias dhau li ntawm qhov ntsuas qhov ntsuas tsis pom, cov xim pleev xim qhov loj me yog lwm qhov tseem ceeb ntawm kev pom tseeb. Raws li qhov loj me me zuj zus, lub peev xwm los tawg lub teeb pib txo qis thaum nws nce. Qhov peev xwm ua kom lub teeb tawg no yuav txhim kho lub zog txheej ntawm cov xim, thaum lub zog tawg yog muaj zog, thiab yog tias qhov loj me ntxiv ntxiv, lub zog txheej yuav txo qis. Txawm li cas los xij, yog tias pigment particle loj tsawg dua li ib qho nqi, qhov pom tseeb yuav nce ntxiv vim qhov loj me me zuj zus. Dispersant tsis tuaj yeem hloov cov yam ntxwv ntawm cov xim nws tus kheej, tab sis tuaj yeem tswj cov particle loj faib ntawm cov xim, kom ua tiav cov xim zoo tshaj plaws.

Dab tsi yog wetting dispersant, wetting dispersant yog ib hom surfactant nrog hydrophilic thiab lipophilic. Tshwj xeeb tshaj yog insoluble nyob rau hauv cov kua, cov riam phom muaj peev xwm sib npaug disperse cov khoom hais nyob rau hauv cov organic pigments, tiv thaiv cov khoom particles los ntawm settling thiab aggregating los ua tus neeg sawv cev uas yuav tsum tau rau stabilize lub ncua kev kawm ntawv.

Yog li dab tsi yuav koj zoo tagnrho wetting dispersant zoo li?

Yog hais tias nws yog ib yam dab tsi uas muaj feem ntau yuav tsau cov khoom hauv dej. Txo qhov nro ntawm qhov chaw los yog kev sib tshuam kom cov dej sib kis los yog nkag mus rau hauv cov khoom siv, yog li ntub cov khoom siv. Thiab feem ntau ntog tus neeg sawv cev, xws li xab npum, sulfonated roj, hmoov thiab lwm yam. Koj tuaj yeem siv soy lecithin, acetylene, mercaptan, mercaptan acetal, thiab lwm yam.

Ob leeg yog wetting dispersants

1. Adsorb rau saum npoo ntawm cov khoom ua kom cov khoom condensed nto ntawm cov khoom ntub dej.

2. Qhov saum npoo ntawm cov khoom siv ua cov txheej txheem adsorption kom nce tus nqi ntawm cov khoom ntawm cov khoom thiab txhim kho cov tshuaj tiv thaiv quab yuam ntawm cov khoom ua rau peb-dimensional obstacles.

3. Ua rau saum npoo ntawm cov khoom siv los tsim cov qauv bilayer, txheej txheej ntawm cov dej dispersant muaj qhov sib txuam zoo, nce qib ntawm cov khoom ntub dej los ntawm dej. Cov khoom siv yog estranged los ntawm electrostatic repulsion.

4. Uniform system, txhim kho kev ncua kev kawm, tsis muaj nag lossis daus, lub cev thiab tshuaj lom neeg ntawm tag nrho cov kab ke yog tib yam.