Polyurethane Waterborne waa nooc cusub oo nidaamka polyurethane ah kaas oo isticmaala biyaha halkii ay ka isticmaali lahaayeen dareerayaasha organic sida dhexdhexaad ah oo kala firdhiya. Waxay leedahay faa'iidooyinka wasakh la'aan, badbaado iyo isku hallayn, sifooyin farsamo oo aad u fiican, ku habboonaanta wanaagsan, iyo wax ka beddelka fudud.
Si kastaba ha ahaatee, walxaha polyurethane waxay sidoo kale la ildaran yihiin caabbinta biyaha liidata, caabbinta kulaylka, iyo caabbinta dareeraha sababtoo ah la'aanta curaarta isku-xiran ee xasilloon.
Sidaa darteed, waxaa lagama maarmaan ah in la hagaajiyo oo la wanaajiyo sifooyinka kala duwan ee codsiga ee polyurethane iyadoo la soo bandhigayo monomers functional sida fluorosilicone organic, resin epoxy, acrylic ester, iyo nanomaterials.
Waxaa ka mid ah, qalabka nanomaterial ee la beddelay ee polyurethane waxay si weyn u wanaajin karaan sifooyinkooda farsamada, xirtaan caabbinta, iyo xasilloonida kulaylka. Hababka wax ka beddelka waxaa ka mid ah habka isku dhafan ee isdhexgalka, habka polymerization-ka ee goobta, habka isku dhafka, iwm.
Nano Silica
SiO2 waxay leedahay qaab-dhismeedka shabakad saddex-geesood ah, oo leh tiro badan oo kooxo hydroxyl firfircoon ah oogada sare. Waxay hagaajin kartaa sifooyinka dhamaystiran ee isku-dhafka ka dib marka lagu daro polyurethane by covalent bond iyo van der Waals xooga, sida dabacsanaanta, iska caabinta heerkulka sare iyo hooseeya, caabbinta gabowga, iwm. Guo et al. nano-SiO2 oo la sameeyay ayaa wax laga beddelay polyurethane iyadoo la adeegsanayo habka polymerization-ka ee goobta. Marka nuxurka SiO2 uu ahaa ilaa 2% (wt, jajab tiro badan, isla hoostiisa), viscosity xiirid iyo xoogga diirka ee koollada ayaa asal ahaan la hagaajiyay. Marka la barbardhigo polyurethane saafi ah, iska caabbinta heerkulka sare iyo xoogga xajinta ayaa sidoo kale waxoogaa kordhay.
Nano Zinc Oxide
Nano ZnO waxa uu leeyahay awood farsamo sare leh, bakteeriyada wanaagsan iyo sifooyinka bacteriostatic, iyo sidoo kale awood xoog leh si ay u nuugaan shucaaca infrared iyo ilaalinta UV wanaagsan, taas oo ka dhigaysa mid ku haboon samaynta alaabta leh hawlo gaar ah. Cawad iyo al. waxay isticmaashay habka nano positron si ay ugu darto buuxinayaasha ZnO ee polyurethane. Daraasadu waxay ogaatay in ay jirto isdhexgalka isdhexgalka ee u dhexeeya nanoparticles iyo polyurethane. Kordhinta nuxurka nano ZnO laga bilaabo 0 ilaa 5% waxay kordhisay heerkulka kala-guurka dhalada (Tg) ee polyurethane, taas oo wanaajisay xasilloonida kuleylka.
Nano Calcium Carbonate
Isdhexgalka xooggan ee u dhexeeya nano CaCO3 iyo shaxanka ayaa si weyn u wanaajiya awoodda xajinta ee alaabta poliurethane. Gao iyo al. marka hore wax laga beddelay nano-CaCO3 oo leh oleic acid, ka dibna la diyaariyey polyurethane/CaCO3 iyada oo loo marayo polymerization gudaha. Tijaabada Infrared (FT-IR) waxay muujisay in nanoparticles ay si isku mid ah ugu kala firdhiyeen matrixka. Marka loo eego tijaabooyinka waxqabadka farsamada, waxaa la ogaaday in poliurethane lagu beddelay nanoparticles uu leeyahay awood koronto oo ka sarreysa polyurethane saafi ah.
Graphene
Graphene (G) waa qaabdhismeed lakabaysan oo ay ku xidhan tahay SP2 orbitals hybrid, kaas oo muujiya hab-dhaqan aad u wanaagsan, kulaylka, iyo xasiloonida. Waxay leedahay awood sare, adkeysi fiican, wayna fududahay in la leexiyo. Wu iyo al. Nanocomposites Ag / G / PU-da, iyo korodhka Ag / G content, xasiloonida kulaylka iyo hydrophobicity ee walxaha isku dhafan ayaa sii waday inay hagaajiyaan, iyo waxqabadka bakteeriyada ayaa sidoo kale kor u kacay.
Kaarboon Nanotubes
Kaarboon nanotubes (CNTs) waa nanomaterials tuubo hal-cabbir ah oo ay ku xiran yihiin hexagons, oo hadda waa mid ka mid ah agabyada leh codsiyo kala duwan. Iyadoo la adeegsanayo xooggeeda sare, dhaqdhaqaaqa, iyo sifooyinka isku dhafan ee polyurethane, xasiloonida kulaylka, sifooyinka farsamada, iyo dhaqdhaqaaqa walxaha waa la hagaajin karaa. Wu iyo al. lagu soo bandhigay CNT-yada iyada oo loo marayo polymerization in-situ si loo xakameeyo korriinka iyo samaynta qaybaha emulsion-ka, taas oo awood u siinaysa CNT-yada inay si isku mid ah ugu kala firdhiyaan matrix polyurethane. Iyada oo ay sii kordhayso nuxurka CNT-yada, xoogga xajinta ee walxaha isku dhafan ayaa si weyn loo hagaajiyay.
Shirkadeena waxay bixisaa Silica Fumed oo tayo sare leh,Agents-ka-hortagga-hydrolysis (Wakiilada isku-tallaabta, Carbodiimide), Nuugayaasha UV, iwm, taas oo si weyn u hagaajinaysa waxqabadka poliurethane.
Waqtiga boostada: Jan-10-2025