Kev Taw Qhia Rau Xim Paste Performance Indicators, Koj Yuav Tsum Tsis Nco Nws!
Nov 30, 2023
1. Tinting zog ntawm cov xim muab tshuaj txhuam (tinting zog)
Rau kev sib piv ntawm cov xim dej-raws li pastes, tinting zog yog ib qho tseem ceeb qhia, uas qhia txog cov xim concentration, xim kev ua tau zoo thiab pigment dispersion flocculation ntawm cov xim paste. Cov ntaub ntawv raug ntsuas raws li tus naj npawb ntawm cov xim slurry yuav tsum tau ua kom tiav 1/25 ntawm International Standard Depth (ISD) ntawm cov xim, nrog rau tus lej me, lub zog tinting ntau dua. Tus lej tus nqi sawv cev rau cov grams ntawm cov xim muab tshuaj txhuam yuav tsum tau ntxiv rau cov xim dawb: Hauv cov xim pleev xim - cov ntsiab lus titanium dioxide ntawm cov xim dawb yog 25% (1/25ST).
2. Compatibility ntawm cov xim muab tshuaj txhuam (xim kev ua tau zoo - ntiv tes sib tsoo txoj kev)
Kev sib xyaw ua ke ntawm cov xim muab tshuaj txhuam thiab cov txheej txheem siv yog tus yuam sij rau kev cuam tshuam cov ntab, flocculation thiab deg tsis xws luag ntawm qee cov xim xim. Ua ntej siv cov xim pleev xim rau xim sib xws, nco ntsoov ua qhov kev ntsuam xyuas sib haum. Cov tshuaj ntxiv tuaj yeem siv tau los daws qhov teeb meem sib xws ntawm cov xim muab tshuaj thiab xim. Ntxiv cov xim pleev xim rau cov xim dawb, feem ntau yog xim nruab nrab lossis lub teeb xim, thiab siv rau saum npoo ntawm cov khoom yuav tsum tau coated los yog saum npoo ntawm cov khoom imitation yuav tsum tau coated. Thaum nws tab tom yuav ua kom khov, zom qhov saum npoo ntawm txheej nrog koj cov ntiv tes. Tom qab nws dries, saib seb puas muaj cov xim txawv txawv. (Kev tshuaj xyuas qhov muag). Yog hais tias qhov zoo ntawm cov xim paste tsis txaus thiab qhov ua tau zoo dispersion yog qhov tsis zoo, qhov kev loj hlob ntawm cov xim pleev xim yuav tsis zoo, uas yuav cuam tshuam rau kev tsim cov xim ntawm cov xim.
3. Dispersion kev ua tau zoo ntawm cov xim paste (degree ntawm flocculation)
Lub degree ntawm deflocculation ntawm pigment hais los ntawm additives txiav txim qhov loj thiab stability ntawm cov xim paste dispersion. Feem ntau hais lus, nws yog tsis yooj yim sua kom ua tiav deflocculation (uas yog, cov pigments muaj nyob uniformly thiab stably nyob rau hauv lub cev raws li cov thawj hais), thiab lawv tsuas yog uniformly faib nyob rau hauv lub system nyob rau hauv daim ntawv ntawm agglomerates ntawm pigment hais. Cov xim zoo nkauj muaj qhov siab heev ntawm deflocculation, uas yog hais tias, cov agglomerates me me li sai tau, kom nws muaj zog tinting zoo, xim zoo heev thiab kev ruaj ntseg cia. Vim qhov kev ua haujlwm tsis zoo ntawm cov xim muab tshuaj, qhov sib txawv ntawm cov xim flocs nyob rau hauv cov xim muab tshuaj thiab cov xim dawb thiab cov khoom muab tso rau hauv cov khoom siv hauv paus yog qhov yooj yim rau kev xav. Qhov sib txawv no feem ntau ua rau cov xim flocs tsis muaj tus neeg ua yeeb yam me me, ntom nti vim yog cov yeeb yaj kiab me me, thiab pleev xim rau hauv qhov kev txav mus los no, thiab cov xim flocs cais, ua rau ntab xim thiab tawg paj. Yog tias qhov kev ua tau zoo ntawm cov xim muab tshuaj yog qhov zoo, cov xim ntab thiab tawg tuaj yeem zam tau. Tsis tas li ntawd, qhov dispersion ntawm cov xim nws tus kheej kuj ncaj qha cuam tshuam rau cov xim ntab thiab tawg ntawm cov xim.
4. Ib qho ntawm cov yam ntxwv ntawm cov xim muab tshuaj txhuam (lub teeb tsis kam, huab cua tsis kam)
Lub teeb thiab huab cua tsis kam ntawm cov xim pastes raug sim los ntawm kev raug sab nraum zoov, tab sis lub sij hawm raug sab nraum zoov ntev dhau lawm. Feem ntau, cov xim muab tshuaj txhuam kev ua tau zoo yog feem ntau ua los ntawm kev simulation cov cuab yeej thiab cov cuab yeej siv.
Lightfastness: Siv sab nraum zoov acrylic latex xim los ua 1/3ISD thiab 1/25ISD txheem xim swatches rau raug. Siv lub teeb ci xenon (1000W) kom nthuav tawm rau 72 teev, siv qib 1-8 cov ntaub plaub xiav xiav kom nthuav tawm tib lub sijhawm raws li cov qauv xim qauv, thiab tau txais cov xim sib txawv rau qib, qib 1 yog qhov phem tshaj, Qib 8 yog qhov zoo tshaj plaws, (tau raug soj ntsuam los ntawm kev ntsuas xim software)
Huab cua: Siv cov xim acrylic latex sab nraum zoov hauv 1/3ISD thiab 1/25ISD tus qauv xim swatches kom raug. ATLAS khoom siv hluav taws xob siv hluav taws xob tau siv rau 500 teev ntawm qhov raug, thiab daim npav ISD grey tau siv rau cov xim sib txawv, nrog qib 1 yog qhov phem tshaj plaws thiab qib 5 yog qhov zoo tshaj plaws. (Kev ntsuam xyuas los ntawm kev ntsuas xim software)
5. Pigment ntsiab lus ntawm cov xim muab tshuaj txhuam
Cov ntsiab lus pigment yog siv rau kev siv nkaus xwb thiab tsis tuaj yeem siv los ua qhov taw qhia los ntsuas qhov ua tau zoo ntawm cov xim muab tshuaj. Lub zog tinting ntawm cov xim muab tshuaj yog tsis tsuas yog proportional rau cov ntsiab lus xim. Tib cov ntsiab lus pigment muaj qhov sib txawv loj hauv tinting zog nrog sib txawv fineness. Txhawm rau kom ntseeg tau tias kev ruaj ntseg ntawm lub zog tinting ntawm cov xim muab tshuaj, cov xim xim ntawm cov xim muab tshuaj hloov pauv hauv qee qhov ntau. Tus nqi muab nyob rau hauv cov ntaub ntawv xim muab tshuaj txhuam yog tus nqi siv tau.
6. Fineness ntawm cov xim muab tshuaj txhuam
Fineness yog ib qho intuitive qhia uas qhia txog cov xim muaj zog dispersion nyhuv thiab cia ruaj khov ntawm cov xim muab tshuaj txhuam. Feem ntau hais lus, rau tib cov xim muab tshuaj txhuam, qhov me me ntawm qhov me me, qhov loj dua qhov tshwj xeeb ntawm thaj chaw, yog li ua kom muaj peev xwm npog thiab siab dua lub zog tinting; qhov me dua qhov zoo, qhov siab dua qhov ci, thiab cov nyhuv dispersion thiab cia ruaj khov tsis zoo. Qhov zoo dua. Yog lawm, qhov zoo ntawm cov xim pleev xim tsis zoo li qhov ua tau, vim tias thaum cov khoom me me thiab lawv qhov chaw tshwj xeeb nce ntxiv, lub zog nqus lub teeb yuav nce ntxiv thiab qhov kev puas tsuaj kuj nce ntxiv, uas ua rau txo qis hauv huab cua tsis kam; thiab cov particle loj loj heev Thaum cov xim zaj duab xis tsim thiab dries, raws li cov dej precipitates, cov xim paste tsiv mus rau saum npoo, uas tuaj yeem yooj yim ua rau cov xim tsis raug thiab xim sib txawv ntawm phab ntsa.
7. Compatibility ntawm cov xim muab tshuaj txhuam thiab xim
Siv tus ntiv tes sib tsoo txoj kev coj 100 grams ntawm cov xim dawb, ntxiv 2-3 grams ntawm cov xim muab tshuaj txhuam los kuaj, sib tov kom huv si, thiab siv rau saum npoo ntawm cov khoom kom coated. Thaum nws hais txog kom muaj txiaj ntsig, siv koj cov ntiv tes kom zom cov npoo ntawm txheej zaj duab xis kom txog thaum cov yeeb yaj duab ua kom qhuav. Thaum kawg, saib seb puas muaj xim txawv ntawm thaj chaw uas tau muab txhuam nrog koj cov ntiv tes thiab cov uas tsis tau muab rub. Yog tias qhov sib txawv loj, qhov sib xyaw ua ke ntawm cov xim muab tshuaj txhuam thiab cov xim raug kuaj tsis zoo, thiab cov xim npaj nrog cov xim pleev xim no feem ntau yuav ntab. xim tshwm sim. Yog tias cov xim zoo ib yam, feem ntau yuav tsis muaj qhov tshwm sim xim ntab.
8. Cov yam ntxwv ntawm cov xim muab tshuaj 2 (ua haujlwm rau cov tshuaj lom neeg)
Cov tshuaj lom neeg tawm tsam ntawm cov xim dej raws li cov xim feem ntau yog acid thiab alkali tsis kam, uas yog, tshuaj lom neeg tsiv teb tsaws tsis kam. Qhov kev ua tau zoo no yog qhov tseem ceeb nyob ntawm cov xim nws tus kheej thiab yuav tsum tau coj mus rau hauv tus account hauv cov xim rau kev siv sab nraum zoov. Feem ntau, cov txheej txheem dej kuj xav tau cov kua qaub thiab alkali tsis kam, tab sis tsis tas yuav ua rau cov kuab tshuaj organic thiab lwm yam tshuaj. Acid kuj thiab alkali tsis kam: Raws li tus qauv DIN16524, cov xim muab tshuaj yog qhuav (105 degree) thiab muab tso rau hauv 1% sulfuric acid thiab 2.5% sodium hydroxide tov rau 24 teev, tom qab ntawd tshem tawm thiab ntxuav los ntsuas nws cov kua qaub thiab alkali tsis kam. . . Raws li los ntshav thiab xim hloov, nws raug soj ntsuam raws li tus qauv 5- theem. Qib 5 qhia tau hais tias zoo heev acid thiab alkali tsis kam, thiab qib 1 qhia tsis tshua muaj acid thiab alkali tsis kam.
9. Lwm yam kev siv lub cev thiab tshuaj lom neeg ntawm cov xim muab tshuaj
(density, viscosity, pH tus nqi, cov ntsiab lus xim, cov ntsiab lus khoom, fineness thiab gloss)
Ceev: Chav tsev yog grams / cubic centimeter, thiab txoj kev ntsuas yog raws li cov kev cai ntawm GB / T1756.
Viscosity: qhov taw qhia tseem ceeb qhia txog qhov ruaj khov ntawm cov xim muab tshuaj. (STM-Ⅲ Stormer Viscometer)
PH tus nqi: PHB-2 pH meter portable ntsuas pH tus nqi (PH tus nqi) ntawm cov dej-raws li cov xim zoo nkauj, uas feem ntau yog nruab nrab ntawm 7-10. Yog li ntawd, cov xim tuav thiab tinting zog ntawm cov xim pastes nyob rau hauv txheej txheej nrog ib tug pH tus nqi ntawm 7-10 Cov xim zoo heev thiab lwm yam khoom.
Fineness thiab gloss: qhov taw qhia intuitive qhia txog cov nyhuv dispersion thiab cia ruaj khov ntawm cov xim muab tshuaj. Feem ntau hais lus, rau tib cov xim muab tshuaj txhuam, qhov me dua qhov zoo, qhov siab dua qhov ci, thiab qhov zoo dua qhov cuam tshuam thiab kev ruaj ntseg cia.
10. Kev ruaj ntseg zoo ntawm cov xim muab tshuaj
Feem ntau, qhov sib xws ntawm cov ntsiab lus, fineness, viscosity, tinting zog, xim txoj kev loj hlob, lub teeb thiab huab cua tsis kam, thiab lwm yam ntawm cov xim muab tshuaj yog guaranteed los ntawm nruj tswj ntawm cov mis nyuj ntau lawm - raw cov ntaub ntawv - cov txheej txheem ntau lawm - cov khoom tiav. (Kev ntsuam xyuas siv cov software sib xws, Lab tus nqi thiab xim sib txawv tswj DE <1.0)
Feem ntau, qhov ruaj khov ntawm cov xim dej-raws li cov xim pastes tsis pom qhov tsis xws luag xws li delamination, agglomeration, coarsening, thiab nag lossis daus thaum khaws cia hauv chav sov li 25 degree rau ib xyoos, thiab lub zog tinting, xim, thiab lwm yam. thiab chemical zog tsis txo qis. Feem ntau, kev txiav txim siab txog kev laus tuaj yeem ua kom nrawm dua los ntawm kev khaws cia thermal thiab kev sim ua kom khov, thiab kev ntsuam xyuas tuaj yeem ua tiav los ntawm kev qhib qhov kev ntsuam xyuas thiab cov xim sib txuam software.
