Waterborne Polyurethane Matting Resin

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Aqueous polyurethane yog cov tshuaj aqueous, dispersion lossis aqueous lotion tsim los ntawm polyurethane resin hauv dej.Nws yog dav siv hauv tsev, tsev, tsheb, khaub ncaws tawv, khoom siv hauv tsev thiab lwm yam txheej txheej zoo nkauj.Waterborne polyurethane tuaj yeem siv los npaj matting txheej.Tam sim no, cov nyhuv matting ntawm txheej cob yog tsuas yog tau los ntawm kev ntxiv tus neeg sawv cev matting thiab hloov kho tus kheej matting ntawm cov cob.

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Kev piav qhia

Ntxiv ib tus neeg sawv cev matting tuaj yeem txo qhov gloss ntawm txheej, tab sis tus neeg sawv cev matting yog nquag mus rau sedimentation, uas txo qhov ruaj khov ntawm cov tshuaj pleev ib ce, thiab yog tias qhov sib tov tsis sib xws, muaj teeb meem xws li qhov sib txawv ntawm qhov gloss ntawm txheej.Yog li ntawd, txhawm rau daws cov teeb meem tsis zoo tshwm sim los ntawm kev ntxiv cov tshuaj matting, tib neeg tau pib mob siab rau kev tshawb fawb ntawm waterborne polyurethane tus kheej matting resin thiab microsphere waterborne polyurethane matting resin yam tsis tau ntxiv cov tshuaj matting.

1. Self Extinction Waterborne Polyurethane Resin

Tus kheej matting resin hais txog cov txheej txheej uas muaj cov nyhuv matting tom qab tsim cov yeeb yaj kiab yam tsis ntxiv cov hmoov matting ntxiv lossis siv quav ciab rau cov txheej txheej.Tus kheej matting resin muaj kev sib raug zoo nrog lwm cov resins thiab zoo sib xws refractive index tom qab tsim zaj duab xis vim hais tias nws cov Cheebtsam muaj zoo xws li lub cev thiab tshuaj zog thiab optical zog pab pawg neeg qauv nrog matting tus neeg sawv cev hais, uas zoo daws cov teeb meem tshwm sim los ntawm kev ntxiv matting tus neeg saib xyuas.Nyob rau tib lub sijhawm, vim qhov tseeb tias qhov ntsuas qhov cuam tshuam ntawm tus neeg sawv cev matting ntxiv thiab cov txheej txheem txheej tsis tau siv, cov khoom ntawm ob qho tib si matting thiab pob tshab tsis tuaj yeem xav txog, thiab cov ntawv thov ntawm qee cov txheej txheem tsis tuaj yeem ua tiav.Yog li ntawd, tus kheej matting txheej resin uas tsis siv tus neeg sawv cev matting sab nraud tau nyiam heev.
Cov dej ntws los ntawm polyurethane tus kheej extinction resin yam tsis muaj tus neeg sawv cev matting tau tsim los ntawm hydrazine hydrate post chain extension method.Nyob rau hauv tus txheej txheem ntawm thiab, hais tias zoo ib yam li matting tus neeg saib xyuas yog generated, thiab hais tias ntab tusyees nyob rau saum npoo ntawm cov nplaum zaj duab xis, ua rau saum npoo micro ntxhib.Txoj kev no tsis tsuas yog daws cov teeb meem tshwm sim los ntawm kev siv cov matting tus neeg sawv cev, tab sis kuj muaj cov tshuaj pleev thaiv hnub zoo, thiab tuaj yeem txhim kho cov kev sib txhuam tsis zoo, folding fastness thiab rubbing ceev ntawm txheej zaj duab xis.Nws tuaj yeem siv dav rau txheej txheej tawv tawv, polyvinyl chloride (PVC) tawv, polyurethane tawv tawv, thiab lwm yam.
Suav patent cn106432667b nthuav tawm txoj kev npaj ntawm tus kheej matting mos thiab rhiab waterborne polyurethane tawv tiav tus neeg saib xyuas.Kev hloov kho patent siv hmdi, HDI Trimer, propylene carbonate glycol thiab dimethylbutyric acid (DMBA) ua cov ntaub ntawv tseem ceeb thiab hydrazine hydrate ua cov saw txuas ntxiv tom qab emulsification los npaj cov matting waterborne polyurethane.HDI Trimer nyob rau hauv cov khoom siv raw muaj lub nplhaib qauv ntawm peb pawg ua haujlwm.Lub nplhaib qauv ruaj khov thaum lub sijhawm txheej txheem synthesis, uas tuaj yeem tsim cov qauv sib txuas sib txuas rau qee cov khoom siv polyurethane.Lub compatibility ntawm generated micro gel nrog rau lwm yam polyurethane resins yog txo thaum lub sij hawm tsim zaj duab xis txheej txheem.Tsis tas li ntawd, muaj qee qhov ntawm crystallinity nyob rau hauv polyurethane, uas ua rau kom txo qis ntawm pob tshab ntawm cov yeeb yaj kiab tsim, ua tiav cov txiaj ntsig ntawm lub npog ntsej muag, thiab txhim kho cov elasticity, dej tsis kam, solubility thiab hnav tsis kam. polyurethane zaj duab xis.

2. Kev Hloov Kho Ntawm Cov Dej Txhaum Cai Polyurethane Matting Resin

Vim tias qhov sib ntxiv ntawm tus neeg sawv cev matting tuaj yeem cuam tshuam rau lub cev lub cev ntawm cov yeeb yaj kiab, thiab cov pab pawg hydrophilic uas muaj nyob rau hauv tus kheej matting waterborne polyurethane resin yuav ua rau cov dej tsis zoo ntawm cov zaj duab xis txheej tom qab tsim cov tshuaj pleev ib ce, tshwj xeeb tshaj yog thaum siv. rau sab saum toj txheej ntawm tawv los yog ntawv, ntau lub tuam txhab npaj matting resins los ntawm kev hloov kho, xws li kev hloov kho silicone thiab kev sib txuas sib txuas.
Nyob rau hauv cov txheej txheem ntawm cov zaj duab xis tsim ntawm organosilicon hloov waterborne polyurethane matting resin, cov hydrophobic organosilicon seg tsiv mus rau saum npoo ntawm cov tshuaj pleev ib ce txheej zaj duab xis los ua ib tug micro ntxhib nto, uas ua rau cov polyurethane muaj ob qho tib si organic thiab inorganic zog, thiab cov dej kuj, thermal. stability thiab mechanical zog yog zoo dua.Silicone hloov pauv dej hauv polyurethane matting resin tau npaj los ntawm kev siv PDMS hloov kho PTMG, diisocyanate (IPDI) thiab dimethylol propionic acid (DMPA) ua raw khoom.
Kev hloov pauv ntawm crosslinking hloov cov qauv ntawm linear polyurethane, uas yog qhov tshwm sim ntawm nws cov crosslinking los tsim cov tuab network polyurethane macromolecules.Qhov loj me me ntawm cov tshuaj pleev xim polyurethane nce, thiab cov dej evaporates thaum lub sij hawm ziab ntawm cov tshuaj pleev ib ce.Cov piv txwv nrog txoj kab uas hla loj dua ua ib qho chaw ntxhib thiab tsis tshua muaj gloss tom qab sib tsoo.Nyob rau tib lub sijhawm, kev tiv thaiv tshav kub, dej tsis kam thiab tshuaj lom neeg ntawm cov dej npaj polyurethane kuj tau txhim kho vim muaj cov qauv sib txuas sib txuas.Tus kheej extinction lotion ntawm waterborne polyurethane hloov los ntawm internal crosslinking yog npaj los ntawm post chain extension txoj kev.Zaj duab xis nto yog ntxhib.

Cov lus xaus

Raws li ib qho tseem ceeb ntawm daim ntawv thov ntawm cov dej ua los ntawm polyurethane resin, matting txheej resin tau them nyiaj mloog los ntawm kev lag luam txheej.Txawm li cas los xij, qee cov khoom muaj kev ruaj ntseg tsis zoo.Txij li thaum tsis tas yuav ntxiv matting tus neeg sawv cev hauv txheej txheej, tus kheej matting txheej resin muaj qhov ruaj khov thiab kev ua haujlwm zoo heev, uas yuav dhau los ua kev txhim kho yav tom ntej.