Samar da sel sel (HEC) ya ƙunshi jerin halayen sunadarai don canza Celulose, polymer na halitta wanda aka samo daga tsire-tsire. An yi amfani da shi sosai a cikin masana'antu daban daban, gami da magunguna, kayan kwalliya, abinci, saboda tsinkayen sa, da kuma masu riƙe da kayan ruwa.
Gabatarwa zuwa Sel Sellulose (HEC)
Sellululosehlulose sel (HEC) shine rashin daidaituwa, ruwa-mai ruwa mai narkewa ne daga sel ta hanyar canji na sunadarai. Ana amfani dashi azaman thickening, m, da kuma daidaita wakili a cikin masana'antu daban-daban.
Kayan kayan abinci
Cellopose: ainihin kayan albarkatun don samar da HEC. Ana iya barin sel daga kayan yanki daban-daban kamar ɓangaren katako, auduga, ko resonsions.
Ethylene oxide (eo): mahimmin sunadarai da aka yi amfani da shi don gabatar da kungiyoyin Hydroxyl a kan Pellulose Kackone.
Alkali galibi: galibi sodium hydroxide (Naoh) ko potassium hydroxide (Koh) ana amfani dashi azaman mai kara kuzari a cikin amsawar.
Masana'antu
Samun HEC ya unshi ethorsificaddamar da Celulluse tare da ethylene oxide a karkashin alkaline yanayin.
Matakan da ke gaba suna fitar da tsari:
1. Pre-magani na Celulose
Cellulose ya tsarkaka don cire impurities kamar Ligntin, Hemiclulose, da sauran abubuwan cirewa. Selluloe mai tsarkakewa sannan ya bushe zuwa takamaiman danshi abun ciki.
2.
Shiri na alkalineine bayani: Maganin ruwa mai ruwa mai ruwa na sodium hydroxide (Naoh) ko potassium hydroxide (Koh) an shirya shi. A maida hankali ne game da maganin alkalin alkali yana da mahimmanci kuma yana buƙatar haɓaka dangane da yanayin da ake so (DS) na samfurin ƙarshe.
Saita dauki: An watsa Celelulose da aka tsarkaka a cikin maganin alkali. A cakuda yana mai zafi zuwa takamaiman zazzabi, yawanci kusa da 50-70 ° C, don tabbatar da cewa celulose ya kumbura gaba daya kuma yana iya samun damar yin amfani da shi gaba daya.
Addition na ethylene oxide (eo): ethylene oxide (EO) an ƙara a hankali zuwa jirgin ruwan da ke riƙe da zafin jiki da steingring ci gaba. A dauki shine, yadda ake sarrafa zazzabi, yana da mahimmanci don hana zafi.
Kulawa na saka idanu: Ana kula da cigaba ta hanyar nazarin samfurori a lokacin zamanin yau da kullun. Hanyoyi kamar hanyoyi masu sau huɗu (FTir) za a iya amfani da su don tantance matakin canzawa (DS) na Hukumar Hydroxyl akan Kobbin Sellulose.
Rashin daidaitawa da wanka: Da zarar an cimma DS DS, wanda aka ɗauka yana ɗaukar maganin alkaline tare da acid ɗin, yawanci acid din ne. A sakamakon Hec ya yi wanka sosai da ruwa don cire duk wani koma baya da impurities.
3. Tsarkakewa da bushewa
Wanke HEC yana kara tsarkake ta ta hanyar tacewa ko centrifugation don cire duk wani rashi mai maye. An tsarkake hec din sannan a bushe zuwa wani danshi na danshi don samun samfurin karshe.
Iko mai inganci
Kulawa mai inganci yana da mahimmanci a cikin tsarin samar da HEC don tabbatar da daidaito da tsarkakakken samfurin ƙarshe. Maɓallin Maɓallin don saka idanu da:
Digiri na musanya (ds)
Danko
Danshi abun ciki
pH
Tsarkake (rashi na ƙazanta)
Nazarin dabaru kamar ftir, danko mai ma'ana ana amfani da bincike don kulawa mai inganci.
Aikace-aikacen Sirrin Sel (HEC)
HEC ta samo aikace-aikace a cikin masana'antu daban-daban saboda abubuwan da suka fi dacewa:
Manufar Magunguna: Amfani da shi azaman wakili a matsayin wakili a cikin shirye-shiryen shayarwa na baka, tsarin aiki, da kuma tsarin isar da miyagun ƙwayoyin cuta.
Kayan shafawa: Amfani da shi a cikin cream, lotions, da shamfu a matsayin thickener da mai kauri.
Abinci: kara wa kayayyakin abinci a matsayin wakilin abinci da kuma getering, emulsifier, da kuma tsayayye.
Gina: Amfani da shi a cikin morts-bisa ga ciminti da kuma grouts don inganta aiki da riƙe ruwa.
Muhalli da aminci la'akari
Tasirin muhalli: samar da HEC ya ƙunshi amfani da sunadarai kamar ethylene oxide da alkalis, wanda zai iya samun abubuwan da muhalli. Gudanar da sharar da ta dace da riko da ka'idoji suna da mahimmanci don rage tasirin muhalli.
Tsaro: ethylene oxide wani abu ne mai saurin motsawa, gas mai shayarwa, haɗarin haɗari yayin sarrafawa da ajiya da ajiya da ajiya da ajiya da ajiya da ajiya da ajiya da ajiya da ajiya Isasshen iska, kayan kariya na sirri (PPE), da kuma ladabi na aminci ya zama dole don tabbatar da zaman lafiya.
Sellululosehlulose ne mai mahimmanci polymer mai mahimmanci shine aikace-aikace daban-daban a masana'antu da ke kama daga magunguna don gini. Samunsa ya shafi gaggafa ta cellose tare da ethylene oxide a karkashin alkaline yanayin. Matakan sarrafawa mai inganci yana da mahimmanci don tabbatar da daidaito da tsarkakakken samfurin ƙarshe. Hakanan dole ne a magance muhalli da aminci a cikin tsarin samarwa. Ta bin ingantattun tsari da ladabi, HEC za a iya samar da HEC da kyau yayin rage yawan tasirin muhalli da tabbatar da amincin ma'aikaci.
Wannan babban jagora ya rufe tsarin samar da Hydroxylyl Sel (HEC) daki-daki, daga kayan masarufi na ingantaccen tsarin masana'antar polymer.
Lokaci: APR-10-2024