Qhov teeb meem ntawm cov xim av hauv cov xim pleev xim rau cov xim pleev xim muaj cov neeg muaj teeb meem ntev thiab cov tuam ntxhab hauv cov kos duab kev lag luam. Qhov kev sib cais ntawm cov xim xim tsis yog cuam tshuam rau kev ntxhib los mos ntawm cov artworks tab sis kuj tseem tuaj yeem ua rau tsis muaj xim tsis sib xws thiab cov khoom lag luam luv luv. Nyob rau hauv xyoo tsis ntev los no, N-Vinylprolidone (NVP) Homopolers, tau kos cov distersants, tau kos rau lawv cov kev siv hauv cov tshuab roj. Cov ntawv no tshawb txog kev ua haujlwm me me thiab ua tau ntawm nvp homopolys hauv kev tiv thaiv cov qauv tshuaj, kev siv luam tawm, kev siv cov kev siv tau, thiab kev tshawb fawb tshiab, thiab cov kev tshawb fawb tshiab.
Tshuaj Txhuam Txheem: Dispersal Khoom ntawm NVP Homopolymers
Nvp homopolymers(xws li polyvinylprolidone, pvp) muaj cov qauv molecular muaj cov pyrrolidone tsib lub nplhaib, uas tau tso lawv cov peev xwm dispersal tshwj xeeb. Lawv cov tshuab kev nqis tes ua tsuas yog suav nrog peb yam:
Nto Adsorption Thiab Hydrogen Tsev
Cov pab pawg polar (xws li cov pab pawg carbonyyl) ntawm lub pyrogenone nplhaib tuaj yeem tsim cov pab pawg hydroxyl ntawm cov xim ntses, tso cai polymer lwg me me kom nruj kom pom cov xim. Cov adsorption txo cov electrostatic repulsion ntawm cov me me thiab tiv thaiv lawv los ntawm kev sib tsoo thiab sib xyaw. Piv txwv li, hauv cov carbon dub dispersion, pvp molecules thauj tog rau cov pa roj hmab dub ntawm hydrogen bonds, ua ib txheej txheej sib zog.
Storyer cuam tshuam nyhav
Cov txheej txheem polymer txheej tsim los ntawm NVP homopolymers ntawm kev sib tw ntawm cov xim sib xws Cov nyhuv no yog qhov tseem ceeb tshaj plaws hauv cov roj-ua xov xwm thiab muaj peev xwm ncua sijhawm ncua sijhawm ntawm cov pigments. Kev tshawb fawb pom tias qhov hnyav loj dua ntawm PVP, cov tuab tuab ntawm sticer cuam tshuam txheej txheej, thiab ntau dua kev cuam tshuam cov nyhuv dispersal.
Kev ntub dej ua tau zoo ua kom tau zoo
Lub hydrothilic-lipophilic tshuav nyiaj ntawm nv hompolizers tuaj yeem txo tau kwv yees li 30 mn \/ m), txhawb nqa kev ntub dej nrawm thiab dispersion ntawm cov xim xim. Piv txwv li, hauv cov xim pleev xim rau cov roj, pvp nrawm nrawm ntawm cov roj hauv cov roj hauv cov pigmomation, txo cov pib agglomeration.
Kev ntsuas kev lag luam siv tau: Kev tsiv teb tsaws siab thev naus laus zis los ntawm cov txheej txheem rau cov khoom siv kos duab
Txawm hais tias kev tshawb fawb ncaj qha rau cov khoom siv kos duab tau txwv tsis pub muaj kev paub txog kev ua haujlwm hauv cov roj roj thiab inks.
Erirical cov pov thawj los ntawm number case thiab Txheej Kev Lag Luam
Hauv kev lag luam hauv Ink, PVP Carbon Dub Dispersants (xws li PVP K30) Loj dua Carbon AGGlomeration thiab Inch Gloss thiab Adhesion. Lawv cov viscosity qis (kwv yees 5-10 MPA} MpACH txog ntawm 25 degree) kuj tau txhawb kev sib xyaw nrog lwm cov khoom siv, ua rau lawv haum rau cov ntaub ntawv kos duab zoo. Piv txwv li, cov roj ntsuas cov roj cim hom ntxiv PvP kom cov pigments qhuav nyob rau hauv cov kuab tshuaj rau ntau tshaj rau lub hlis.
Kev ntsuas kev ruaj khov nyob rau hauv cov tshuab tsis-aqueous
VP \/ -olefin copolymers (muaj NVP monomers) tau siv ua cov xim tsis muaj cov neeg sawv cev hauv cov khoom tu tawv nqaij thiab cov tshuaj pleev kom zoo rau cov khoom siv roj. Lub tshuab sib xws zoo sib xws tuaj yeem siv rau cov khoom siv roj ntsha zoo li cov roj pleev xim lossis cov pastels roj. Kuaj cov roj pleev cov xim roj nrog 2% pvp muaj 70% tsawg sedimentation dua li cov kev sim tsis tau muaj nyob hauv 40 degree ceev kev laus xeem.
Kev kub siab rau qhov kub
Lub Rigid nplhaib qauv qauv ntawm nvp homopolymers tswjfability thaum kub siab. Piv txwv li, nyob rau hauv cov txheej txheem txheej txheej, PVP-hloov cov xim pigments qhia tsis pom kev hloov pauv ntawm 150 qib rau 2 teev, thaum cov tsoos dispersant systems tau muaj kev paub dhau heev. Cov cuab yeej no yog qhov tshwj xeeb tshaj yog rau cov khoom siv kos duab kom muaj kev kub ntxhov siab, xws li enamel pigments.
Cov ntawv thov siv: Qhov zoo thiab cov kev sib tw ntawm NVP homopolymers
Cov ntsiab lus zoo
Ib puag ncig ua phooj ywg: Nvp homopolymers muaj cov kev cai biocompatibility, ua raws li EU cuag cov cai thiab Asmeskas cov qauv, ua rau lawv haum rau menyuam cov khoom siv.
Kev sib haum: Piv nrog cov tsoos dispersants (xws li lecithin thiab acrylic resins), nv hompolers tsis tshua muaj kev nkag mus rau hauv cov roj-tswj xov xwm, tswj cov xim fluidity.
Lub sij hawm ntev ruaj khov: Los ntawm kev kho polymer molecular hnyav thiab siab, cov tshuab tawg nrog cov sib txawv ntau thiab tsawg qhov ntau thiab tsawg qhov sib txawv tuaj yeem yog customized. Piv txwv li, PVP K90 yog tsim nyog rau cov pigmas zoo pigments (particle loj<100 nm), while PVP K15 is more suitable for conventional particle sizes (100-500 nm).
Cov kev sib tw thiab kev txhim kho cov lus qhia
Cuam tshuam rau lub sijhawm qhuav: Qee qhov kev tshawb fawb qhia tau tias cov txiaj ntsig siab ntawm nvp homopolers tuaj yeem ncua kev ziab ntawm cov xov hluav taws xob roj. Piv txwv li, cov xim pleev xim nrog 5% pvp muaj lub sijhawm ziab txuas ntxiv los ntawm 7 txog 10 hnub, xav tau kev ua kom zoo los ntawm kev ua kom qhuav (xws li cobalt socle).
Tus nqi yam: Cov txheej txheem ntau lawm rau NVP homopalize, tam sim no raug nqi ntau dua li cov khoom tawg (xws li Lecithin). Khawb PVP K30 raws li ib qho piv txwv, luv nqi ntawm kwv yees li $ {1}} ib kilogram, piv rau tsuas yog $} ib kilogram rau lecithin.
Tseeb tsim: 2025 kev tshawb fawb kev lag luam thiab kev kuaj quav
Cov thev naus laus zis copolymer thev naus laus zis
Kev lag luam Patents nyob rau hauv 2025 qhia kev hloov tshiab tsis tu ncua hauv kev siv NVP copolymers li txheej dispersants. Piv txwv li, Puyang Jingsen cov ntaub ntawv tshiab tsim cov copolymer ntawm methacrylate thiab nvp, uas txhim kho cov xim hluav taws xob tsis muaj peev xwm ua kom muaj cov roj ntsha. Cov thev naus laus zis no txo cov dispersion me me ntawm carbon dub nyob rau hauv cov roj av ntxhia los ntawm 200 nm mus rau 80 nm, uas tsis muaj tseeb sedimentation nyob rau hauv peb lub hlis.
Cov ntawv thov ntawm biobased cov ntaub ntawv
Cov pab pawg neeg soj ntsuam Japanese tau tsim biobased dispersant siv nvp ua cov ntaub ntawv monomer, nrog cov khoom siv raw los ntawm cov khoom siv rawed los ntawm cov khoom siv ua pob kws txuas ntxiv). Nyob rau hauv cov xim pleev xim rau cov xim av, cov dispersant tsis yog txo cov roj av uas tau ncua sijhawm los ntawm 50% tab sis kuj txuas ntxiv lub sijhawm ncua kev ncua rau 1.5 zaug ntawm cov khoom lag luam ib txwm muaj.
Cov Tshuab Ntse Tshaj Plaws
Ib lub chaw tshawb fawb German yog tsim cov ph-teb nvp copolymers. Thaum cov pH cov pig-raws li cov xim pigments hloov pauv vim oxidation lossis cov qauv sib kis lossis microber lossis cov qauv polymer cia li hloov kho cov pab pawg ntxiv thiab ua kom ruaj khov. Qhov "" ntse tsis txaus ntseeg "xav tias yuav daws teeb meem kev ua kom tsis muaj teeb meem thaum lub sijhawm cia ntev.
Xaus: Peev Xwm thiab Yav Tom Ntej Cov Lus Qhia Ntawm NVP Homopolymers
Raws li kev siv tshuaj lom neeg thiab kev coj ua, nvp homopolymers tau qhia txog kev tiv thaiv cov xim roj av hauv cov roj siv. Lawv qhov kev ua tau zoo tsis tau raug kuaj xyuas hauv cov kua ntses thiab cov tsho tiv no, thiab lawv cov yam ntxwv ib puag ncig ua kom haum rau cov qauv kev lag luam. Txawm li cas los xij, cov qauv tshwj xeeb rau cov khoom siv kos duab tseem xav tau kev tshawb fawb ntxiv, tshwj xeeb hauv kev tswj kom qhuav thiab nqi kho kom zoo dua qub.
Nrog rau kev txhim kho cov ntaub ntawv kev tshawb fawb, nvp homopolymers yuav tsum los ua qhov kev xaiv tseem ceeb rau cov khoom siv roj txuas ntxiv. Nyob rau hauv lub neej yav tom ntej, los ntawm copolymer tsim, biobased hloov kev tswj hwm, thiab cov kws ua yeeb yam kom meej meej nrog ntau cov ntaub ntawv muaj tswv yim.