Tsarin Sinadarai da Mai ƙirƙira na Ethers Cellulose

Cellulose ethers wani nau'i ne na mahadi waɗanda ake amfani da su sosai a masana'antu daban-daban, ciki har da gine-gine, abinci, magunguna, da kulawa na sirri. Wadannan mahadi an samo su ne daga cellulose, polymer na halitta da aka samo a cikin tsire-tsire, kuma ana samar da su ta hanyar tsarin gyaran sinadarai. A cikin wannan labarin, za mu tattauna tsarin sinadaran cellulose ethers da wasu daga cikin manyan masana'antun wadannan mahadi.

Tsarin Sinadari na Cellulose Ethers:

An samo ethers na cellulose daga cellulose, polymer na layi mai layi wanda ya ƙunshi raka'o'in glucose wanda ke da alaƙa da beta-1,4 glycosidic bonds. Ana nuna rukunin maimaituwar cellulose a ƙasa:

Gyaran sinadarai na cellulose don samar da ethers cellulose ya ƙunshi maye gurbin ƙungiyoyin hydroxyl akan sarkar cellulose tare da wasu ƙungiyoyi masu aiki. Ƙungiyoyin ayyuka da aka fi amfani da su don wannan dalili sune methyl, ethyl, hydroxyethyl, hydroxypropyl, da carboxymethyl.

Methyl Cellulose (MC):

Methyl cellulose (MC) shine ether cellulose wanda aka samar ta hanyar maye gurbin kungiyoyin hydroxyl akan sarkar cellulose tare da kungiyoyin methyl. Matsayin maye gurbin (DS) na MC na iya bambanta daga 0.3 zuwa 2.5, ya danganta da aikace-aikacen. Nauyin kwayoyin halitta na MC yawanci yana cikin kewayon 10,000 zuwa 1,000,000 Da.

MC fari ne zuwa fari-fari, mara wari, kuma foda mara ɗanɗano wanda ke narkewa a cikin ruwa da mafi yawan abubuwan kaushi. Ana yawan amfani dashi azaman mai kauri, ɗaure, da emulsifier a cikin masana'antu daban-daban, gami da abinci, magunguna, da kulawa na sirri. A cikin masana'antar gine-gine, ana amfani da MC azaman ƙari a cikin samfuran tushen siminti don haɓaka ƙarfin aiki, riƙe ruwa, da ƙarfin mannewa.

Ethyl Cellulose (EC):

Ethyl cellulose (EC) shine ether cellulose wanda aka samar ta hanyar maye gurbin kungiyoyin hydroxyl akan sarkar cellulose tare da kungiyoyin ethyl. Matsayin maye gurbin (DS) na EC na iya bambanta daga 1.5 zuwa 3.0, ya danganta da aikace-aikacen. Nauyin kwayoyin halitta na EC yawanci yana cikin kewayon 50,000 zuwa 1,000,000 Da.

EC fari ne zuwa fari-fari, mara wari, kuma foda mara ɗanɗano wanda ba ya narkewa a cikin ruwa amma mai narkewa a cikin mafi yawan kaushi. An fi amfani da shi azaman ɗaure, tsohon fim, da wakili mai dorewa a cikin masana'antar harhada magunguna. Bugu da ƙari, ana iya amfani da EC azaman kayan shafa don abinci da samfuran magunguna don haɓaka kwanciyar hankali da bayyanar su.

Hydroxyethyl Cellulose (HEC):

Hydroxyethyl cellulose (HEC) shine ether cellulose wanda aka samar ta hanyar maye gurbin kungiyoyin hydroxyl akan sarkar cellulose tare da kungiyoyin hydroxyethyl. Matsayin maye gurbin (DS) na HEC na iya bambanta daga 1.5 zuwa 2.5, dangane da aikace-aikacen. Nauyin kwayoyin HEC yawanci yana cikin kewayon 50,000 zuwa 1,000,000 Da.

HEC fari ne zuwa fari-fari, mara wari, kuma foda mara ɗanɗano wanda ke narkewa a cikin ruwa da mafi yawan kaushi. Ana yawan amfani dashi azaman mai kauri, emulsifier, da stabilizer a masana'antu daban-daban, gami da abinci, magunguna, da kulawa na sirri. A cikin masana'antar gine-gine, ana amfani da HEC azaman ƙari a cikin samfuran tushen ciminti don haɓaka aikin aiki, riƙe ruwa, da ƙarfin mannewa.

Hydroxypropyl methyl cellulose (HPMC) shine ether cellulose wanda aka samar ta hanyar maye gurbin ƙungiyoyin hydroxyl akan sarkar cellulose tare da ƙungiyoyin hydroxypropyl da methyl. Matsayin maye (DS) na HPMC na iya bambanta daga 0.1 zuwa 0.5 don maye gurbin hydroxypropyl da 1.2 zuwa 2.5 don maye gurbin methyl, ya danganta da aikace-aikacen. Nauyin kwayoyin halitta na HPMC yawanci yana cikin kewayon 10,000 zuwa 1,000,000 Da.

HPMC fari ne zuwa fari, mara wari, kuma foda mara ɗanɗano wanda ke narkewa a cikin ruwa da mafi yawan abubuwan kaushi. Ana yawan amfani dashi azaman mai kauri, ɗaure, da emulsifier a cikin masana'antu daban-daban, gami da gini, abinci, magunguna, da kulawa na sirri. A cikin masana'antar gine-gine, ana amfani da HPMC azaman ƙari a cikin samfuran tushen siminti don haɓaka iya aiki, riƙe ruwa, da ƙarfin mannewa.

Masu kera na Cellulose Ethers a ƙasashen waje:

Akwai da yawa manyan masana'antun na cellulose ethers, ciki har da Dow Chemical Company, Ashland Inc., Shin-Etsu Chemical Co., Ltd., AkzoNobel NV, da Daicel Corporation.

Kamfanin Dow Chemical yana ɗaya daga cikin manyan masana'antun ethers cellulose, gami da HPMC, MC, da EC. Kamfanin yana ba da nau'i-nau'i masu yawa da ƙididdiga don waɗannan samfurori, dangane da aikace-aikacen. Ana amfani da ethers cellulose na Dow a masana'antu daban-daban, ciki har da gine-gine, abinci, magunguna, da kulawa na sirri.

Ashland Inc. wani babban masana'anta ne na ethers cellulose, gami da HEC, HPMC, da EC. Kamfanin yana ba da ma'auni mai yawa da ƙayyadaddun bayanai don waɗannan samfuran, dangane da aikace-aikacen. Ana amfani da ethers cellulose na Ashland a masana'antu daban-daban, ciki har da gine-gine, abinci, magunguna, da kulawa na sirri.

Shin-Etsu Chemical Co., Ltd. wani kamfani ne na sinadarai na Japan wanda ke samar da ethers cellulose, ciki har da HEC, HPMC, da EC. Kamfanin yana ba da nau'i-nau'i masu yawa da ƙididdiga don waɗannan samfurori, dangane da aikace-aikacen. Ana amfani da ethers cellulose na Shin-Etsu a masana'antu daban-daban, ciki har da gine-gine, abinci, magunguna, da kulawa na sirri.

AkzoNobel NV wani kamfani ne na ƙasar Holland wanda ke samar da ethers cellulose, ciki har da HEC, HPMC, da MC. Kamfanin yana ba da ma'auni mai yawa da ƙayyadaddun bayanai don waɗannan samfuran, dangane da aikace-aikacen. Ana amfani da ethers cellulose na AkzoNobel a masana'antu daban-daban, ciki har da gine-gine, abinci, magunguna, da kulawa na sirri.

Daicel Corporation wani kamfani ne na sinadarai na Japan wanda ke samar da ethers cellulose, ciki har da HPMC da MC. Kamfanin yana ba da nau'i-nau'i masu yawa da ƙididdiga don waɗannan samfurori, dangane da aikace-aikacen. Ana amfani da ethers cellulose na Daicel a masana'antu daban-daban, ciki har da gine-gine, abinci, magunguna, da kulawa na sirri.

Ƙarshe:

Cellulose ethers rukuni ne na mahadi waɗanda aka samo daga cellulose kuma ana amfani da su sosai a masana'antu daban-daban. Tsarin sinadarai na ethers cellulose ya ƙunshi maye gurbin ƙungiyoyin hydroxyl akan sarkar cellulose tare da wasu ƙungiyoyi masu aiki, kamar methyl, ethyl, hydroxyethyl, hydroxypropyl, da carboxymethyl. Akwai da yawa manyan masana'antun na cellulose ethers, ciki har da Dow Chemical Company, Ashland Inc., Shin-Etsu Chemical Co., Ltd., AkzoNobel NV, da Daicel Corporation. Wadannan kamfanoni suna ba da nau'i mai yawa da ƙididdiga don ethers cellulose, dangane da aikace-aikacen.