Hydroxyethyl cellulose (HEC) iyo hydroxypropyl methyl cellulose (HPMC) waa labada dhumuc ee inta badan la isticmaalo.Waxay yihiin qaybo ka mid ah xabagta laastikada oo loo isticmaali karo in lagu bixiyo iska caabin, kordhinta viscosity, ama bixinta ductility.Halabuurka kiimikada ay isku mid yihiin, laakiin waxaa jira farqi muuqda oo muuqda.
HEC waa analoog ethylene-acetate ah oo ka kooban inta badan formaldehyde, methanol iyo sodium hydroxide.Waa thixotropic heer sare ah waxaana loo isticmaali karaa saliidaha, wakiilada daweynta dusha sare iyo xabagta qalabka korontada iyo warshadaha.Hecs sidoo kale waxaa loo isticmaali karaa sida dhumucyada, kala firdhiya iyo ka hortagga miisaanka.
HPMC waa analoog kale ethylene-acetate, oo ka kooban inta badan methanol, sodium hydroxide, iyo carbonate.Waxay leedahay viscosity sare, dabacsanaan iyo ballaarin, waxaa loo isticmaali karaa sida xabag, rinji, nadiifiye iyo khad lagu daro.Intaa waxaa dheer, waxa kale oo loo isticmaali karaa diyaarinta crystal iyo waxay leedahay xasilloonida nidaamka siman.
Hydroxyethyl cellulose HEC, sida surfactant aan-ionic, waxay leedahay sifooyinka soo socda marka lagu daro dhumuc, ganaax, adhesion, sabayn, samaynta filimada, kala firdhiso, haynta biyaha iyo saamaynta colloidal ilaalinta:
1, hydroxyethyl cellulose HEC waxaa lagu milmi karaa biyo kulul ama qabow, heerkulka sare ama karkarinta ma soo da'do, si ay u leedahay tiro balaadhan oo ah milanka iyo sifooyinka viscosity, iyo hantida gel aan kululayn;
2, hydroxyethyl cellulose HEC lafteeda nooca non-ionic waxay la noolaan karaan tiro balaadhan oo ah polymers kale oo biyo-milmi kara, surfactants, cusbada, waa nooc ka mid ah dhumucdiisuna kolloidal ka kooban xal electrolyte sare;
3, hydroxyethyl cellulose HEC awoodda haynta biyaha ayaa laba jeer ka sarreeya methyl cellulose, oo leh nidaaminta socodka;
4. Awoodda kala firdhisan ee hydroxyethyl cellulose HEC waa liidata marka la barbar dhigo methyl cellulose la aqoonsan yahay iyo hydroxypropyl methyl cellulose, laakiin ilaalinta awoodda kolloid waa mid xooggan.
Ujeeddo: Guud ahaan waxaa loo isticmaalaa sida wakiilka dhumucdi, wakiilka ilaalinta, koollada, xasiliyaha iyo diyaarinta rinjiga cinjirka, lacquer, khad.Waxyaalaha lagu daro ee loo isticmaalo qodista saliidda, jeelka, boomaatada, looshanka, nadiifiyeyaasha indhaha, subsiyada iyo kaniiniyada, sidoo kale loo isticmaalo sida jel-biyoodka, qalabka qalfoofka, diyaarinta diyaarinta sii deynta lafaha, waxaana loo isticmaali karaa xasiliyayaal cuntada.