Waa maxay faa'iidooyinka cellulose?

Cellulose waa nooc ka mid ah cellulose kaas oo wax soo saarkiisa iyo isticmaalkiisu uu si degdeg ah u kordhin doono. Waa ether-ka isku-dhafan ee aan noolaha lahayn ee cellulose-ka laga sameeyay suuf la safeeyey ka dib marka la dilo, iyadoo la isticmaalayo propylene oxide iyo methyl chloride sida wakiilada etherification, iyo iyada oo loo marayo falcelin taxane ah. Darajada beddelka guud ahaan waa 1.2 ~ 2.0. Sifooyinkeedu way kala duwan yihiin sababtoo ah saamiga kala duwan ee qaybaha tert-butyl iyo qaybaha hydroxypropyl.

(1) Cellulose waxay ku milmi kartaa biyo qabow, wayna adkaan doontaa in lagu milmo biyo karkaraya. Laakiin heerkulkeeda gelatinization ee biyaha karkaraya aad ayuu uga sarreeyaa kan karboksycellulose. Xaaladda ku milmida biyaha qabow sidoo kale si weyn ayaa loo hagaajiyay marka la barbar dhigo karboxycellulose.

(2) Viscosity of cellulose waxay la xiriirtaa xajmiga cufka molecular ee qaraabada ah, iyo marka uu weynaado cufka molecular, waa sarreeyaa viscosity. Heerkulka ayaa sidoo kale saameyn doona viscosity-kiisa, heerkulku kor u kaca, viscosity ayaa hoos u dhacaya. Laakiin viscosity-keeda sare iyo heerkulka sare ayaa ka dhib yar marka loo eego karboxycellulose. Xalka aqueous waa mid deggan marka lagu kaydiyo heerkulka qolka.

(3) Kaydinta biyaha iyo milanka cellulose waxay ku jirtaa qaddarkeeda dheeriga ah, viscosity, iwm.

(4) Cellulose waxay u adkaysataa aashitada iyo alkali, xalkeeduna aad buu u deggan yahay inta u dhaxaysa pH=2 ~ 12. Aluminium chloride anhydrous iyo slurry lime saamayn weyn kuma laha hantidiisa, laakiin alkali waxa ay dedejin kartaa heerka dhalaaliddeeda oo wanaajin karta viscosity-keeda. Cellulose waa mid lagu kalsoonaan karo milixyada aashitada caadiga ah, laakiin marka diirada milixdu ay sareeyso, viscosity ee xalka cellulose wuxuu u eg yahay inuu kordho.

(5) Cellulose waxaa loo isticmaali karaa polymers-ka biyaha-milmi kara si loo sameeyo labbiska iyo dareeraha aqueous-ka-sare. Sida emulsion acrylic, tapioca starch ether, xabagta khudradda, iwm.

(6) Cellulose waxay leedahay iska caabin enzyme ka xoog badan karboksycellulose, iyo xalkeeda aqueous waxay u badan tahay in lagu milmo enzymes marka loo eego carboxycellulose.

(7) Ku-dhejinta cellulose ee dhismaha hoobiye sibidhka ayaa ka sarreeya kan karboksycellulose.