Thickener hec hydroxyethyl cellulose

Hydroxyethyl cellulose (HEC) ne nonionic cellulose samu wanda aka yadu amfani a daban-daban masana'antu saboda da kyau kwarai thickening, suspending, da emulsifying Properties. HEC shine polymer mai narkewa da ruwa wanda za'a iya narkar da shi cikin sauƙi a cikin ruwan sanyi don samar da mafita mai tsabta da marar launi. Ana amfani da HEC a matsayin mai kauri a cikin aikace-aikace masu yawa, ciki har da sutura, adhesives, samfuran kulawa na sirri, da magunguna.

Ana samar da HEC ta hanyar gyara cellulose na halitta, polymer mai kunshe da raka'o'in glucose wanda aka haɗa tare da β(1→4) glycosidic bonds. Gyaran cellulose ya ƙunshi gabatar da ƙungiyoyin hydroxyethyl (-CH2CH2OH) akan raka'o'in anhydroglucose na kashin bayan cellulose. Wannan gyare-gyare yana haifar da polymer mai narkewa da ruwa wanda zai iya samar da haɗin gwiwar hydrogen tare da kwayoyin ruwa, wanda zai haifar da samuwar maganin danko.

HEC yana da tasiri mai mahimmanci saboda ikonsa na samar da tsarin gel-kamar lokacin da aka ƙara shi zuwa bayani. Ƙungiyoyin hydroxyethyl a kan kwayoyin HEC na iya yin hulɗa tare da kwayoyin ruwa, wanda ya haifar da samuwar haɗin hydrogen. Haɗin hydrogen tsakanin kwayoyin HEC da kwayoyin ruwa suna sa kwayoyin HEC su zama ruwa kuma suna fadada girma. Yayin da kwayoyin HEC ke fadadawa, yana samar da tsarin cibiyar sadarwa mai girma uku wanda ke kama ruwa da sauran abubuwan da aka narkar da su, wanda ya haifar da karuwa a cikin danko na bayani.

Ƙarfafa ƙarfin HEC yana shafar abubuwa daban-daban, ciki har da ƙaddamar da HEC a cikin maganin, zafin jiki, da pH. Matsakaicin mafi girma na HEC a cikin maganin yana haifar da karuwa mai mahimmanci a cikin danko. Duk da haka, haɓaka ƙaddamar da HEC fiye da wani batu zai iya haifar da raguwa a cikin danko saboda samuwar tarawa. Hakanan zafin jiki yana rinjayar ƙarfin ƙarfin HEC, tare da yanayin zafi mai girma wanda ke haifar da raguwa a cikin danko. Hakanan pH na maganin zai iya rinjayar ƙarfin ƙarfin HEC, tare da ƙimar pH mafi girma wanda ke haifar da raguwa a cikin danko.

Ana amfani da HEC a matsayin mai kauri a aikace-aikace daban-daban, gami da sutura da fenti. A cikin sutura, ana ƙara HEC zuwa ƙirar don inganta halayen rheological na sutura. Abubuwan rheological na sutura suna nufin ikonsa na gudana da matakin a kan wani wuri. HEC na iya inganta kwarara da daidaita kaddarorin rufi ta hanyar haɓaka danko da rage halayen sagging. HEC kuma na iya inganta kwanciyar hankali na sutura ta hana daidaitawar pigments da sauran daskararru.

A cikin adhesives, ana amfani da HEC azaman mai kauri don inganta danko da tackiness na m. Danko na manne yana da mahimmanci don ikonsa na mannewa saman da kuma zama a wurin. HEC na iya inganta danko na manne kuma ya hana shi daga digo ko gudu. HEC kuma na iya inganta tackiness na m, kyale shi don manne mafi kyau ga wani surface.

A cikin samfuran kulawa na sirri, ana amfani da HEC azaman thickener da stabilizer. Ana amfani da HEC akai-akai a cikin shamfu, kwandishana, da wankin jiki don inganta danko da laushi. HEC kuma na iya inganta zaman lafiyar waɗannan samfuran ta hanyar hana rabuwa lokaci da daidaitawar daskararru.

A cikin magunguna, ana amfani da HEC azaman mai kauri da mai dakatarwa. Ana amfani da HEC akai-akai a cikin dakatarwar baki don dakatar da magunguna marasa narkewa a cikin matsakaicin ruwa. Hakanan za'a iya amfani da HEC azaman mai kauri a cikin creams da gels don inganta danko da rubutu.

A ƙarshe, HEC shine polymer mai narkewa mai ruwa wanda aka yi amfani da shi sosai azaman thickener a cikin masana'antu daban-daban saboda kyawawan kaddarorin sa, dakatarwa, da kayan emulsifying.