Focus on Cellulose ethers

Tasirin digiri na maye gurbin (DS) akan ingancin HEC

Tasirin digiri na maye gurbin (DS) akan ingancin HEC

HEC (hydroxyethyl cellulose) ba ionic ba ne, polymer mai narkewar ruwa wanda ake amfani da shi sosai a masana'antu daban-daban kamar kulawar mutum, magunguna, da abinci azaman mai kauri, ɗaure, da kuma daidaitawa. Matsayin maye gurbin (DS) shine ma'auni mai mahimmanci wanda zai iya tasiri sosai ga kaddarorin da aikin HEC.

Matsakaicin maye yana nufin matsakaicin adadin ƙungiyoyin hydroxyethyl waɗanda ke haɗe zuwa kowace rukunin anhydroglucose na kashin bayan cellulose. A wasu kalmomi, yana auna gwargwadon abin da aka gyara ƙwayar cellulose tare da ƙungiyoyin hydroxyethyl.

Tasirin matakin maye gurbin akan ingancin HEC yana da mahimmanci. Gabaɗaya, yayin da matakin maye gurbin ya karu, solubility na HEC a cikin ruwa yana ƙaruwa, kuma danko yana raguwa. HEC tare da matsayi mafi girma na maye gurbin yana da ƙananan danko, kuma ya fi soluble a cikin ruwa. Wannan shi ne saboda ƙungiyoyin hydroxyethyl suna rushe haɗin gwiwar hydrogen tsakanin sarƙoƙi na cellulose, wanda ke haifar da tsari mai sauƙi da sauƙi.

Bugu da ƙari, matsayi mafi girma na maye gurbin zai iya inganta kwanciyar hankali na thermal na HEC kuma ya ƙara juriya ga lalatawar enzymatic. Duk da haka, babban matsayi na maye gurbin zai iya haifar da raguwa a cikin nauyin kwayoyin halitta da kuma asarar asali na asali na kashin baya na cellulose, wanda zai iya rinjayar aikin HEC gaba ɗaya.

A taƙaice, matakin maye gurbin wani muhimmin siga ne wanda zai iya tasiri sosai ga kaddarorin da aikin HEC. Matsayi mafi girma na maye gurbin zai iya inganta solubility da kwanciyar hankali na HEC, amma babban matsayi na maye gurbin zai iya haifar da asarar asali na asali na kashin baya na cellulose, wanda zai iya rinjayar aikin HEC gaba ɗaya.


Lokacin aikawa: Afrilu-03-2023
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