Peb cov khoom tseem ceeb: block Silicone, hydroxilic silicone, tag nrho cov pa roj caricone, carbon rau: Maily +8619 (WhatsApp)

Dispersants, tseem hu ua super dispersants, yog ib hom tshwj xeeb ntawm surfactant tus cwj pwm los ntawm lawv cov qauv molecular, uas muaj ob pab pawg nrog tawm tsam solubility thiab polarity. Ib qho ntawm cov no yog pawg neeg luv dua, hu ua cov qauv myrohilic, yog li ua kom muaj kev cuam tshuam loj heev thiab muab cov khoom siv cuam tshuam zoo tshaj plaws hauv aqueousiouse.

Hom dispersants siv hauv aqueous pigment dispersions:

1. Inorganic dispersants, xws li polyphosphate esters, silicates, thiab lwm yam.

2. Organic me molecule dispersants, xws li alkyl polyeters lossis anionic surfactants ntawm phosphote hom.

3. Tus neeg tawg rog super, xws li sodium polyacrylate thiab acrylic- (methahacrylic) copolymers.

Cov kev ua tsis ncaj ncees ntsib qee cov kev txwv: Cov pab pawg hauv hydecular lossis cov chaw tsis muaj txiaj ntsig, ua rau kev ua siab loj thiab rov flocculation ntawm cov lus tom qab dispersion; Hydrophobic pawg feem ntau tsis muaj cov pa roj carbon ntau (feem ntau tsis tau tshaj 18 carbon atoms), ua rau nws tsis muaj kev cuam tshuam rau kev ruaj khov. Yuav kom kov yeej cov kev txwv no, chav kawm tshiab ntawm cov dispersants super tau tsim uas nthuav tawm cov teebmeem tshwj xeeb hauv cov khoom tsis muaj aqueous. Lawv cov yam ntxwv tseem ceeb muaj xws li: nrawm thiab ua kom pom kev ntub dej ntawm cov lus; Tseem ceeb dua cov ntsiab lus particle cov ntsiab lus hauv kev sib tsoo cov ntaub ntawv, khaws cov khoom siv thiab kev siv hluav taws xob; Thiab kev sib cais sib cais nrog cov khoom ruaj khov zoo, ua rau muaj kev txhim kho yooj yim kawg-siv kev ua haujlwm ntawm kev dispersion.

Hom SUPERPERSANTS UQUOWNANNE siv los yog polyelectrolyte dispersants thiab tsis-ionic dispersants. Lawv cov qauv muaj peev xwm suav nrog Random Copolymers, making cov coplocers, thiab thaiv copolymers. Tus qauv ntawm Super Dispersants yog muaj ob ntu:
Anchor pawg: Feem ntau pom cov pab pawg suav nrog -r2n, -cooh +, -so3h, -so3-, polyas4ines, polyabs, thiab polyethers. Cov no tuaj yeem tsim ntau lub ntsiab lus anchoring ntawm cov nplaim taws los ntawm ntau yam kev sib cuam tshuam, ua kom muaj zog zuj zus.
Cov kev sib tw: hom muaj xws li cov polyesters, polyeters, polyolefins, thiab polyacrylate. Lawv tuaj yeem raug cais raws polarity: Tsawg-polarity polyolefin chains; nruab nrab-polarity polyester lossis polyacrylate chains; thiab muaj zog polyether cov saw hlau. Hauv kev tshaj tawm xov xwm nrog cov kev sib tw polarities, cov kev daws teeb meem ntawm cov khoom nruab nrab zoo nrog rau cov txheej txheem tiv thaiv kom zoo rau cov txheej txheem tiv thaiv tuab ntawm cov khoom siv ua kom huv.

Xaiv cov neeg Dispersants:

Cov kev xaiv feem ntau txiav txim siab ob yam:

1.Surface cov khoom ntawm cov xim xim: qhov no suav nrog thaj chaw polarity, acid-cov qauv muaj zog, thiab pawg accural.

- Rau inorganic pigments nrog muaj zog npoo polarity thiab qee cov organic pig ntawm dhuav ungerning, hydrogen kev sib cuam tshuam, lossis ionic tsevneeg raug xaiv.

- Rau feem ntau cov organic pigments nrog qee qhov chaw nyob hauv nroog tsawg, super dispersants nrog ntau cov pab pawg tau siv los txhim kho lub zog tshaj tawm tag nrho.

- Cov pigic pigments feem ntau xav tau super dispersants, thiab kev saib xyuas yuav tsum tau coj mus ua kom meej meej ntawm lub resin thiab dispersant. Tsis muaj peev xwm tshaj tawm tsis zoo ua rau muaj kev sib txuas lus ntxiv, ua rau cov khoom sib txuas lus zoo nkauj thiab qis sterores tsis kam.

- Feem ntau, super dispersants nrog amino anchor pab pawg muaj txiaj ntsig zoo rau cov acidic pigments, thaum cov muaj acidic pawg ua haujlwm zoo dua ntawm cov xim tseem ceeb.

2. Cov polubation ntawm dispersion nruab nrab thiab nws solubility ntawm cov saw suam: Qhov kev tshem tawm ntawm cov xim ntawm cov xim ntawm cov xim xim, thiab cov tshuaj ntxiv. Cov kuab coj ua lub luag haujlwm tseem ceeb, tshwj xeeb yog cov nruab nrab dispersion, uas cuam tshuam rau kev mus ncig thiab dispersibility ntawm cov pigment. Txhawm rau kom ntseeg tau tias tus super dispersant muab cov tshuaj uas muaj txiaj ntsig zoo hauv cov tshuaj aqueous yuav tsum tau txais kev sib txuas lus tsis txaus nyob rau hauv nruab nrab. Yog li ntawd, nws yog qhov tseem ceeb kom xaiv cov kab txuas ntawm cov saw hlau uas tau tshaj nrog cov kua aqueous.

Kev cim ntawm super dispersants:

Super dispersants nthuav qhia zoo dua ntais cov kev ua ub no. Ntawm tib qho kev ua yeeb yam ua kom zoo nkauj, lawv tuaj yeem nce cov xim xim hauv cov slurry, yog li ua kom cov viscosity ntawm slurries nrog tib cov xim muaj cov ntsiab lus. Cov cuab yeej no ib leeg tuaj yeem paub qhov txawv ntawm qhov hnyav molecular hnyav dispersants thiab cov rog hnyav tsis zoo. Kev sim nrog kev nyuaj-rau-disperse carbon dub tuaj yeem yooj yim tshaj qhov txawv txawv no. Tsawg molecular dispersants feem ntau tawm tsam kom ua tiav cov kev tawg dub dub vim tsis txaus ntseeg, ua rau cov neeg tsis muaj zog ntub dej thiab siab slurry viscosity. Hauv kev sib piv, super dispersants zoo daws cov teeb meem no.

Super dispersants zaub ua kom zoo dua kev cia khoom ruaj khov. Cov khoom siv cov xim ua rau cov neeg tsis sib haum xeeb kom ruaj khov rau kev ntsuas kom ruaj khov, tshwj xeeb yog cov kev sim ua kom yooj yim thiab ua kom muaj floccurulation lossis kev sib sau ua ke.

Txij li thaum cov Disperse cov khoom lag luam zoo li cov khoom lag luam zoo li cov khoom siv roj av, nrog cov khoom siv molecular ncav tes, cov xeeb ceem no yog qhov yooj yim txhais tau tias ntawm kev txheeb xyuas. Ib qho piv txwv ntawm cov dispersant tuaj yeem qhuav hauv qhov cub; Yog tias cov ntaub ntawv seem uas muaj cov yeeb yaj kiab cob qhia, nws tau txheeb raws li lub cev hnyav molecular. Nws yog ib qho tseem ceeb kom nco ntsoov tias txheem super dispersants paib paib daj lossis daj resin zaj duab xis thaum ziab. Yog tias cov ntaub ntawv seem cov pob tshab, cov yeeb yaj kiab loj, nws tsuas yog qhia tau qee qhov cuam tshuam nrog cov nyhuv tawg, tsis tuaj yeem ua raws li lub siab molecular hnyav tsis sib xws.

Daim ntawv thov ntawm Super Dispersants:

Yuav kom ua tiav cov teebmeem kev sib cais zoo, daim ntawv thov ntawm Super Dispersants yog qhov tseem ceeb. Hais txog kev txiav txim ntawm ntxiv, rau inorganic pigments nyob rau hauv cov resacgragic nyob rau hauv cov pawg polar, lawv tuaj yeem ntxiv ua ntej lossis tom qab lub resin ua lub luag haujlwm tseem ceeb. Txawm li cas los xij, yog tias lub resin tsis muaj kev ua haujlwm nquag, nws raug nquahu kom ntxiv cov xim ua ntej, ua raws li los ntawm cov dispersant, thiab thaum kawg tus cob.

Tus nqi ntawm dispersant ntxiv ib txwm txiav txim siab raws li cov yam ntxwv saum npoo ntawm cov xim, tshwj xeeb nws cov kua qaub-kaj, thaj chaw tshwj xeeb, thiab cov duab. Tus nqi siab zoo yog feem ntau yog tsim kom ua tiav qhov tseem ceeb heev monomolecular adsorpotive txheej ntawm cov xim xim nto. Cov nyiaj ntau dhau tuaj yeem nce nqi thiab cuam tshuam cov khoom lag luam zoo, thaum tsis muaj peev xwm ua tau cov nyhuv xav tau cov nyhuv xav tau. Txhua cov xim muaj ib qho kev ua tau zoo tshaj plaws uas muaj nqis hauv cov xim sib txawv, cov roj nqus, cov khoom sib xyaw, thiab cov yam ntxwv ntawm cov xuab zeb-milling resin; Li no, kev siv yuav tsum tsim nyog thiab txiav txim siab los ntawm kev sim siab.