Quaternized hydroxyethyl cellulose

Quaternized hydroxyethyl cellulose (QHEC) yog ib qho kev hloov kho ntawm hydroxyethyl cellulose (HEC) uas tau raug cuam tshuam nrog quaternary ammonium compound. Qhov kev hloov kho no hloov cov khoom ntawm HEC thiab ua rau muaj cationic polymer uas muaj ntau yam kev siv, suav nrog hauv cov khoom tu tus kheej, textiles, thiab ntawv txheej.

Lub quaternization ntawm HEC suav nrog qhov sib ntxiv ntawm quaternary ammonium compound rau HEC molecule, uas qhia txog tus nqi zoo rau hauv cov polymer. Cov feem ntau siv quaternary ammonium compound rau lub hom phiaj no yog 3-chloro-2-hydroxypropyl trimethylammonium chloride (CHPTAC). Cov tshuaj no cuam tshuam nrog cov pab pawg hydroxyl ntawm HEC molecule, ua rau muaj txiaj ntsig zoo QHEC molecule.

Ib qho ntawm cov ntawv thov tseem ceeb ntawm HEC yog nyob rau hauv cov khoom siv tu tus kheej, xws li tshuaj zawv plaub hau, tshuaj kho mob, thiab cov khoom siv plaub hau. HEC muab cov khoom txias txias thiab detangling zog rau cov plaub hau, ua kom yooj yim rau zuag thiab style. HEC kuj tseem siv los ua cov thickener thiab rheology hloov kho hauv cov khoom no, muab kev ntxhib los mos zoo nkauj thiab txhim kho kev ua haujlwm tag nrho.

Hauv kev siv textile, HEC yog siv los ua tus neeg sawv cev sizing rau paj rwb thiab lwm yam ntuj fibers. HEC tuaj yeem txhim kho qhov tawv thiab tawv tawv ntawm cov ntaub, ua rau lawv ruaj khov thiab yooj yim dua thaum lub sijhawm tsim khoom. HEC kuj tuaj yeem txhim kho qhov adhesion ntawm dyes thiab lwm yam khoom tiav rau cov ntaub, ua rau cov xim ci dua thiab zoo dua ntxuav sai.

HEC kuj tseem siv rau hauv cov ntawv txheej los txhim kho cov dej tsis kam thiab cov ntawv luam tawm. HEC tuaj yeem txhim kho cov txheej txheej adhesion thiab txo cov kev nkag mus ntawm dej thiab number case rau hauv cov ntawv fibers, ua rau cov ntaub ntawv zoo dua thiab muaj zog dua. HEC tseem tuaj yeem muab qhov zoo tshaj plaws smoothness thiab gloss rau daim ntawv, txhim kho nws cov tsos thiab tactile zog.

Ib qho txiaj ntsig tseem ceeb ntawm HEC yog nws cov cationic xwm txheej, uas ua rau nws muaj txiaj ntsig zoo hauv cov qauv uas muaj anionic surfactants. Anionic surfactants feem ntau siv rau hauv cov khoom tu tus kheej, tab sis lawv tuaj yeem cuam tshuam nrog cov tsis-ionic thickeners, xws li HEC, thiab txo lawv cov txiaj ntsig. HEC, ua cationic, tuaj yeem tsim muaj zog electrostatic cuam tshuam nrog anionic surfactants, uas ua rau txhim kho thickening thiab stability.

Lwm qhov txiaj ntsig ntawm HEC yog nws txoj kev sib raug zoo nrog ntau yam ntawm lwm cov khoom xyaw. HEC tuaj yeem siv nrog lwm cov cationic, anionic, thiab cov khoom xyaw uas tsis yog-ionic yam tsis muaj kev cuam tshuam rau nws txoj haujlwm. Qhov no ua rau nws muaj ntau yam khoom xyaw uas tuaj yeem siv rau hauv ntau hom kev tsim thiab kev siv.

HEC muaj nyob rau hauv ntau qib thiab viscosities, nyob ntawm seb cov ntawv thov tshwj xeeb thiab cov qauv tsim nyog. Nws yog feem ntau muab los ua hmoov uas tuaj yeem yooj yim tawg hauv dej lossis lwm yam kuab tshuaj. QHEC kuj tseem tuaj yeem muab tau los ua cov khoom ua ntej nruab nrab lossis tus kheej nruab nrab, uas tshem tawm qhov xav tau ntxiv cov txheej txheem nruab nrab thaum lub sijhawm tsim cov txheej txheem.

Hauv cov ntsiab lus, quaternized hydroxyethyl cellulose yog ib qho kev hloov kho ntawm hydroxyethyl cellulose uas tau raug cuam tshuam nrog quaternary ammonium compound. HEC yog cationic polymer uas muaj ntau yam kev siv, suav nrog hauv cov khoom tu tus kheej, textiles, thiab ntawv txheej. HEC muab cov khoom txias txias thiab thickening zoo, txhim khu kev ua haujlwm ntawm anionic surfactants, thiab sib xws nrog ntau yam ntawm lwm cov khoom xyaw. Kev ua tau zoo thiab kev ua tau zoo ntawm HEC ua rau nws muaj txiaj ntsig muaj txiaj ntsig hauv ntau cov qauv thiab kev siv.