Hydroxyethyl cellulose (HEC)waa unug-cellulose biyo-milmi leh oo leh dhumuc wanaagsan, filim-samayn, qoyaan, dejin, iyo sifooyin emulsifying. Sidaa darteed, waxaa si weyn loogu isticmaalaa goobo badan oo warshadaha, gaar ahaan Waxay ka ciyaartaa door lama huraan ah oo muhiim ah rinjiga cinjirka (sidoo kale loo yaqaan rinjiga biyaha ku salaysan).
1. Astaamaha aasaasiga ah ee cellulose hydroxyethyl
Hydroxyethyl cellulose waa iskudhis biyo-milmi leh oo la helay iyadoo kiimiko ahaan wax looga beddelayo unugyada unugyada (soo bandhigaya kooxaha hydroxyethyl ee molecules cellulose). Tilmaamaha ugu muhiimsan waxaa ka mid ah:
Biyuhu milanka: HEC waxay ku milmi kartaa biyaha si ay u samayso xal aad u sarreeya, taas oo hagaajinaysa sifooyinka rheological ee daahan.
Saamaynta dhumucda: HEC waxay si weyn u kordhin kartaa viscosity ee rinjiga, samaynta rinjiga cinjirku leeyahay sifooyin daahan wanaagsan.
Ku-xidhka iyo guryaha-samaynta filimada: HEC molecules waxay leeyihiin hydrophilicity gaar ah, taas oo hagaajin karta waxqabadka daahan ee daahan oo ka dhigi daahan mid labis ah oo siman.
Xasilooni: HEC waxay leedahay xasillooni kulayl wanaagsan iyo xasillooni kiimikaad, waxay ku sii jiri kartaa xasilloon inta lagu jiro wax soo saarka iyo kaydinta dahaarka, mana aha mid u nugul hoos u dhaca.
Iska caabbinta qulqulaya ee wanaagsan: HEC waxay leedahay caabbinta qulqulka sare, taas oo yarayn karta ifafaalaha soo noqnoqda ee rinjiga inta lagu jiro dhismaha iyo hagaajinta saameynta dhismaha.
2. Doorka hydroxyethyl cellulose ee rinjiga cinjirka
Rinjiga Latex waa rinji biyo ku salaysan oo biyaha u isticmaala sida dareeraha iyo emulsion polymer oo ah walaxda ugu weyn ee samaynta filimada. Waa deegaan saaxiibtinimo leh, aan sun ahayn, aan xanaaqin oo ku habboon rinjiyeynta gudaha iyo dibaddaba. Ku darida hydroxyethyl cellulose waxay si weyn u wanaajin kartaa waxqabadka rinjiga cinjirka, kaas oo si gaar ah uga muuqda dhinacyada soo socda:
2.1 Saamaynta dhumucda
Qaababka rinjiga cinjirka, HEC waxaa inta badan loo isticmaalaa dhumuc ahaan. Sababo la xiriira sifooyinka biyaha-millan ee HEC, waxay si dhakhso ah u milmi kartaa dareerayaasha aqueous waxayna samayn kartaa qaabdhismeedka shabakad iyada oo loo marayo isdhexgalka intermolecular, si weyn u kordhinaya viscosity ee rinjiga cinjirka. Tani kaliya ma wanaajin karto faafinta rinjiga, taasoo ka dhigaysa mid ku habboon cadayashada, laakiin sidoo kale waxay ka hortagtaa in rinjiga uu hoos u dhaco sababtoo ah viscosity aad u hooseeya inta lagu jiro habka rinjiyeynta.
2.2 Hagaajinta waxqabadka dhismaha ee dahaarka
HECwaxay si wax ku ool ah u hagaajin kartaa sifooyinka rheological ee rinjiga cinjirka, hagaajinta caabbinta sag-caabbinta iyo dareeraha rinjiga, hubi in rinjiga si siman loo dabooli karo dusha sare ee substrate-ka, iyo ka fogaanshaha dhacdooyinka aan loo baahnayn sida goobooyin iyo calaamadaha socodka. Intaa waxaa dheer, HEC waxay hagaajin kartaa qoyaanka rinjiga, taas oo u oggolaanaysa rinjiga cinjirka in uu si dhakhso ah u daboolo dusha sare marka rinjiyeynta, yaraynta cilladaha ay keento dahaarka aan sinnayn.
2.3 Kor u qaadida biyaha oo kordhi wakhtiga furitaanka
Sida isku-xidhka polymer-ka ee leh awoodda haynta biyaha ee xooggan, HEC waxay si wax ku ool ah u kordhin kartaa wakhtiga furitaanka rinjiga cinjirka. Waqtiga furitaanka waxaa loola jeedaa wakhtiga rinjigu ku sii jiro gobolka rinji. Ku darida HEC waxay hoos u dhigi kartaa uumiga biyaha, taas oo kordhinaysa wakhtiga la shaqayn karo ee rinjiga, taas oo u oggolaanaysa shaqaalaha dhismaha inay waqti badan u helaan jarista iyo dahaarka. Tani waxay lama huraan u tahay in si siman loo codsado rinjiga, gaar ahaan marka rinjiyeynta meelaha waaweyn, si looga hortago in dusha sare ee rinjiga uu si degdeg ah u engejiyo, taasoo keenta calaamado burush ah ama dahaarka aan sinnayn.
2.4 Hagaajinta adhesion iyo caabbinta biyaha
Dahaarka rinjiga cinjirka ah, HEC waxay kor u qaadi kartaa isku-xidhka u dhexeeya rinjiga iyo dusha sare ee substrate si loo hubiyo in dahaarka aanu si fudud u dhicin. Isla mar ahaantaana, HEC waxay hagaajinaysaa waxqabadka biyuhu ee rinjiga cinjirka, gaar ahaan meelaha qoyan, taas oo si wax ku ool ah uga hortagi karta dhexgalka qoyaanka iyo kordhinta nolosha adeegga ee daahan. Intaa waxaa dheer, hydrophilicity iyo adhesion ee HEC waxay awood u siinaysaa rinjiga cinjirka si uu u sameeyo dahaar wanaagsan oo ku saabsan noocyo kala duwan oo substrates ah.
2.5 Hagaajinta iska caabinta dejinta iyo isku midnimada
Maaddaama qaybaha adag ee rinjiga cinjirka ah ay fududahay in la dejiyo, taasoo keentay tayada aan sinnayn ee rinjiga, HEC, sida dhumucdiisuna, waxay si wax ku ool ah u wanaajin kartaa guryaha lidka-dejinta ee rinjiga. Iyadoo la kordhinayo viscosity ee daahan, HEC awood qaybaha adag in ay si siman u kala firdhiyey ee daahan, yaraynaysaa dejinta qayb, taas oo ilaalinaysa xasilloonida ee daahan inta lagu jiro kaydinta iyo isticmaalka.
3. Faa'iidooyinka codsiga ee hydroxyethyl cellulose ee rinjiga cinjirka ah
Ku darida hydroxyethyl cellulose waxay leedahay faa'iidooyin la taaban karo oo soo saarista iyo isticmaalka rinjiga cinjirka ah. Ugu horreyntii, HEC waxay leedahay sifooyin ilaalin deegaan oo wanaagsan. Biyo la'aanteeda iyo sun la'aantu waxay hubisaa in rinjiga cinjirka ah uusan sii deyn doonin walxaha waxyeelada leh inta lagu jiro isticmaalka, buuxinta shuruudaha rinjiyeyaasha deegaanka ee casriga ah. Marka labaad, HEC waxay leedahay sifooyin filim samaynta oo xoog leh, kaas oo hagaajin kara tayada filimka rinjiga cinjirka, samaynta dahaarka adag oo jilicsan, oo leh adkaysi wanaagsan iyo caabbinta wasakhda. Intaa waxaa dheer, HEC waxay hagaajin kartaa dareeraha iyo shaqeynta rinjiga cinjirka, yaraynta dhibka dhismaha, iyo hagaajinta waxtarka shaqada.
Codsiga eehydroxyethyl celluloserinjiga cinjirka wuxuu leeyahay faa'iidooyin badan wuxuuna si wax ku ool ah u hagaajin karaa sifooyinka rheological, waxqabadka dhismaha, dhejinta iyo adkeysiga rinjiga. Iyadoo horumarinta joogtada ah ee ilaalinta deegaanka iyo shuruudaha tayada rinjiga, HEC, oo ah dhumuc muhiim ah iyo hagaajinta waxqabadka, waxay noqotay mid ka mid ah waxyaallaha lagama maarmaanka ah ee rinjiyada casriga ah ee casriga ah. Mustaqbalka, horumarinta tignoolajiyada, codsiga HEC ee rinjiga cinjirka ah ayaa la sii ballaarin doonaa awoodiisuna way sii weynaan doontaa.
Waqtiga boostada: Nov-14-2024