Kodi zosakaniza ndi ma hydroxethyl cellulose ndi ziti?

Hydroxyethyl cellulose (hec) ndi polymer yofunikira yopanda madzi yam'madzi a cellulose ether. Imapezeka ndikutengera kwa cellulose ya cellulose ndi ethylene oxide (ethylene oxide) pansi pa mikhalidwe ya alkalinine. Hydroxyethyl cellulose ndi mzere polysaccharide utoto wopangidwa ndi ma cellulose ma celluuse maenje, ndipo enanso kapena ena onse a hydroxyethyl amasinthidwa.

Zosakaniza ndi kapangidwe ka mankhwala
Kupanga kwa ma hydroxyethyl cellulose makamaka kumaphatikizapo magawo otsatirawa:

Celluulse Bankbone: Cellulose ndi polysaride wachilengedwe, gawo lalikulu la magawo a magawo a glucose olumikizidwa ndi β-1,4-glycosiidic. Mapangidwe awa a celloulose amapereka kwapamwamba kwambiri komanso mphamvu yakuthupi.

Hydroxyethyl m'malo mwake: mu gawo la glucose la fupa lam'matumbo, pali magulu atatu a hydroxyl (-Oh), yomwe ili pa C2, C3 ndi C6 ndi C6. Hydroxyethyl cellulose imapangidwa poyambitsa hydroxyethyl magulu magulu a hydroxyl pogwiritsa ntchito magulu a hydroxyl asbolide. Kukhazikitsidwa kwa awa m'malo amachepetsa cellulose ya cellulose, kumathandizira kusungunuka kwamadzi, ndipo kumapangitsa kuti ziwoneke bwino komanso ma visalicluct mu njira yothetsera matenda am'madzi.

Kulemera kwa maselo ndi digiri ya zowonjezera: Kulemera kwa maselo ndi kuchuluka kwa magulu (mwachitsanzo, kuchuluka kwa magulu aliwonse a hlucose) a hydroxethyl cellyo ndi zinthu ziwiri zofunika zomwe zimakhudza katundu. Nthawi zambiri, hydroxyethyl cellulose yokhala ndi zolemetsa zapamwamba zimakhala ndi mafayilo abwinobwino komanso luso lakumwamba, pomwe mulingo wokwera kwambiri umapangitsa madzi kukhala amadzi ndikukhazikika.

Makina a phycochemical a hydroxyethyl cellulose
Chifukwa cha mawonekedwe ake apadera, hydroxethyl cellulose imawonetsa mtundu wabwino kwambiri wa zizindikiritso:

Madzi osungunuka: hydroxyethyl cellulose amasungunuka mosavuta mu madzi ozizira komanso otentha kuti apange yankho lomveka bwino kapena pang'ono. Njira yake yochiziratu siyikhudzidwa kwambiri ndi mtengo wa PH ndipo imakhala yokhazikika pa phger (nthawi zambiri pakati pa 2 ndi 12).

Kukula: Hydroxyethyl cellulose imakhala ndi mphamvu kwambiri mu njira yothetsera matenda am'madzi, ndipo luso lake lakumwamba limakhudzidwa ndi kulemera kwa maselo, digiri ya kulowetsedwa. Pamene chidwi chachikulu chikuwonjezeka, mawonekedwe opindulitsa amawonjezeka kwambiri, motero amagwiritsidwa ntchito kwambiri m'minda yamafakitale yomwe imafunikira okuza.

Ntchito: Popeza hydroxyethyl celluluse molekyu ili ndi magulu a hydrophilic ndi mafupa a hydrophobic, imatha kuchepetsa nkhawa zamadzi mu yankho ndikuwonetsa zochitika zina. Katunduyu amapangitsa kuti ikhale yogwiritsidwa ntchito pofuula, inks ndi minda ina, ndipo imatha kukonza madzi ndi kuphatikizidwa ndi zinthu zopangidwa.

Kukhazikika: hydroxyethyl cellulose imakhala ndi bata yabwino mu njira yothetsera matenda am'madzi, imatha kukana mphamvu ya osungirako anthu wamba, ndipo imakhala yokhazikika pansi pa asidi ndi alkaline. Sizingafanane ndi tizilombo tating'onoting'ono kwambiri mu madzi am'madzi, motero sizophweka kuwonongeka pakusungira.

Kugwirizana ndi chitetezo: hydroxyethyl cellulose imagwiritsidwa ntchito kwambiri pazakudya, zodzoladzola ndi mankhwala chifukwa zimasungidwa bwino pa cellulose komanso zosokoneza bongo pambuyo kusintha mankhwala. Mwachitsanzo, imagwiritsidwa ntchito ngati thicker ndi kusungunuka mu chakudya, ngati Humeltant ndi Emlsarier muzodzola, komanso ngati chomangira matrix kukonzekera mapiritsi.

Kukonzekera ndi kugwiritsa ntchito
Kukonzekera kwa Hydrothyl cellulose nthawi zambiri kumagawika pamagawo atatu: Kupenyerera kwa cellulose, kudziyeretsa ndi kuyanika. Choyamba, cellulose imathandizidwa pansi pa magulu a alkaline kuti ayambitse magulu a ma hydroxyl a cellulose, kenako adachitapo kanthu ndi ethylene oxidi kuti apange hydroxethyl cellulose. Pomaliza, chinthu chomaliza chimapezeka kudzera mu magawo monga kusalowerera, kuyeretsa ndi kuyanika.

Hydroxyethyl cellulose imagwiritsidwa ntchito kwambiri pomanga zida (monga matope a simenti ndi zokutira), monga zopangira mankhwala osokoneza bongo) ndi opanga zakudya (monga okhazikika).

Hydroxyethyl cellulose imagwiritsidwa ntchito kwambiri m'minda yosiyanasiyana chifukwa cha thupi lake labwino komanso mankhwala. Kusiyana kwake ndi kapangidwe kake kumapangitsa kuti ikhale yofunika kwambiri, emulsization, kuyimitsidwa, mapangidwe afilimu ndi kukhazikika kofunikira.