IHydroxyYethylcellulose (HEC) yi-nonic, i-polymer ene-soluble ancibilike ethathwe ku-cellulose. Isakhiwo saso samakhemikhali esiyingqayizivele nezenza kube yisithako esiguquguqukayo esinezicelo ezahlukahlukene kuyo yonke imboni efana nezimboni ezinjengezimboni, izimonyo, ukudla, ukunakekelwa komuntu siqu. Enye yezinto zayo eziphawuleka yizici zayo ezinhle kakhulu zokumiswa, ezidlala indima ebalulekile ekwakhiweni okuningi.
Ukwakheka kanye nezakhiwo ze-HEC
I-HEC isuselwa ku-cellulose, okuyi-polymer eyenzeka ngokwemvelo etholakala ezindongeni zeseli zezitshalo. Ngochungechunge lokuphendula kwamakhemikhali, amaqembu e-hydroxyethyl angeniswa emgogodleni we-cellulose, okuholela kwi-polymer esolulekayo enamanzi anezakhiwo ezihlukile.
Isakhiwo samakhemikhali: Isakhiwo esiyisisekelo se-cellulose siqukethe ukuphinda ama-glucose amayunithi axhumene ndawonye ngamabhondi angu-β-1,4-glycosidic. Ku-HEC, amanye amaqembu we-hydroxyl (-oh) kuma-glucose amayunithi athathelwa indawo yi-hydroxyethyl (-Och2chchchoh). Lokhu kufakazelwa kunika amandla i-solubity yamanzi ku-polymer ngenkathi kugcina isakhiwo sangemuva se-cellulose.
I-Solubinity yamanzi: I-HEC incibilika kakhulu emanzini, yakha izixazululo ezicacile, ezibonakalayo. Izinga lokufaka esikhundleni (DS), elibonisa inani eliphakathi lamaqembu ama-hydroxyethyl ngeyunithi ye-glucose ngayinye, lithonya i-polymer's solubility nezinye izakhiwo. Amanani aphezulu we-DS ngokuvamile avela kumanzi amakhulu we-solubity.
I-Viscosity: Izixazululo ze-HEC zibonisa indlela yokuziphatha ye-Pseudoplastic, okusho ukuthi i-visa yazo yehla ngaphansi kwengcindezi ye-shear. Le mpahla inenzuzo kuzinhlelo zokusebenza ezifana nezimbozo kanye nama-adhesives, lapho okuqukethwe kudinga ukugeleza kalula ngesikhathi sokufaka isicelo kepha kugcina i-viscosity lapho kuphumula.
Ukwakheka kwamafilimu: I-HEC ingakha amafilimu asobala, aguqukayo lapho omisiwe, okwenza kufanelekile ukusetshenziswa njenge-ejenti eyakha amafilimu ezicelo ezahlukahlukene.
Izici Zokumiswa ze-HEC
Ukumiswa kubhekisele emandleni okuqukethwe okuqinile ukuze uhlale uhlakazeke ngokulinganayo ngaphakathi koketshezi ngaphandle kokuxazulula isikhathi. I-HEC ibonisa izakhiwo ezinhle kakhulu ngenxa yezici eziningana:
I-Hydration kanye nokuvuvukala: Lapho izinhlayiya ze-HEC zihlakazeka endaweni ephakathi nendawo, ziyaqhuma futhi zivuvukala, zakha inethiwekhi enezici ezintathu ezithinta futhi zimisa izinhlayiya eziqinile. Uhlobo lwe-Hydrophilic lwe-HEC lusiza ukwenziwa kwamanzi, okuholela ekutheni kukhuphuke ukwanda nokuqina okuthuthukile kokumiswa.
Ukusatshalaliswa kosayizi wezinhlayiyana Lokhu kuguqulwa kwenza ukuthi ikulungele ukumisa zombili izinhlayiya ezinhle futhi ezixakile ekunikezelweni okuhlukahlukene.
Ukuziphatha kwe-Thixotropic: I-HEC Solutions Ebonisa Ukuziphatha kwe-Thixotropic, okusho ukuthi ukuhlakanipha kwawo kuncipha ngokuhamba kwesikhathi ngaphansi kwengcindezi ye-shear ehlala njalo futhi kutholakele lapho kususwa ingcindezi. Le mpahla ivumela ukuthulula okulula kanye nesicelo ngenkathi ugcina ukuqina nokumiswa kwezinhlayiya eziqinile.
Ukuqina kwe-PH: I-HEC iqinile ngaphezulu kwamanani e-PH amanani, okwenza kufanelekile ukusetshenziswa ku-acidic, okungathathi hlangothi kokwakheka ngaphandle kokuyekethisa izakhiwo zayo zokumiswa.
Izicelo ze-HEC ekumisweni kokumiswa
Izakhiwo ezinhle kakhulu ze-HEC zikwenza kube isithako esibalulekile emikhiqizweni eminingi kuyo yonke imboni:
Amapende nezimbobo: I-HEC isetshenziswa njenge-Swerener kanye ne-ejenti elisamisayo kumapende asuselwa emanzini kanye nezingubo zokugqoka ukuvikela ukuxazulula imibala kanye nezithasiselo. Ukuziphatha kwayo kwe-pseudoplastic kusiza uhlelo lokusebenza olubushelelezi kanye nokuvalwa komfaniswano.
Imikhiqizo yokunakekelwa komuntu siqu: kuma-shampoos, ukugeza umzimba, kanye neminye imikhiqizo yokunakekelwa komuntu siqu, i-HEC isiza okwesikhashana izinhlayiya ezifana nezikhombisi, imibala, kanye nokusatshalaliswa kobuhlalu
Izakhi zezemithi: I-HEC iqashwa ekumisweni kwemithi ukuze imise izithako ezisebenzayo futhi ithuthukise amandla okuqina kanye nokuqina kwezindlela zomzimba eziwuketshezi zomlomo. Ukuhambisana kwawo okunhlobonhlobo ye-API (izithako ezisebenzayo zemithi) nama-Excessients kwenza kube yikhekhe elikhethwayo lamakhemikhali.
Imikhiqizo yokudla neziphuzo: I-HEC isetshenziswa kuzinhlelo zokusebenza zokudla ezifana nokugqoka kwesaladi, amasoso, kanye neziphuzo ukumisa izithako zokungena ezingezonakele njengekhambi, izinongo kanye ne-pulp. Imvelo yayo engenamzimba futhi engenamfashini yenza kube nento elungele ukusetshenziswa ekwakhekeni kokudla ngaphandle kokuthinta izimfanelo zemizwa.
IHydroxyYethylcellulose (HEC) iyinhlangano eguquguqukayo enezakhiwo ezihlukile zokumiswa, okwenza kube yisithako esibalulekile ekwakhiweni okuhlukahlukene kwezimboni. Amandla awo okumisa izinhlayiya eziqinile ngokulinganayo kumidiya ewuketshezi, ehambisana nezinye izimfanelo ezifiselekayo njenge-solubity yamanzi, ukulawulwa kwe-viscosity, ukuqina kwe-ph, kukwenza okubaluleke kakhulu ukuthi amaWhiti afune ukufezekisa imikhiqizo ezinzile nekhwalithi ephezulu. Njengoba imizamo yocwaningo nentuthuko iyaqhubeka nokuthuthuka, ukusetshenziswa kwe-HEC ekumisweni kulindeleke ukuthi kwandise okunye, ukushayela okusha kanye nokwenza ngcono ukusebenza komkhiqizo emikhakheni ehlukahlukene.
Isikhathi sePosi: Meyi-09-2024