Cellulose ether polymer roba ce da aka yi daga cellulose na halitta ta hanyar gyara sinadarai.Cellulose ether wani abu ne na cellulose na halitta.Samar da ether cellulose ya bambanta da polymers na roba.Mafi mahimmancin kayan sa shine cellulose, fili na polymer na halitta.Saboda ƙayyadaddun tsarin tsarin cellulose na halitta, cellulose kanta ba ta da ikon amsawa tare da ma'aikatan etherification.Koyaya, bayan maganin kumburin wakili, haɗin gwiwar hydrogen mai ƙarfi tsakanin sarƙoƙi na ƙwayoyin cuta da sarƙoƙi sun lalace, kuma sakin aiki na ƙungiyar hydroxyl ya zama alkali cellulose mai amsawa.Samun cellulose ether.
Abubuwan da ke cikin ethers cellulose sun dogara da nau'in, lamba da rarraba abubuwan maye.Hakanan ana rarraba rarrabuwa na ether cellulose bisa ga nau'in maye gurbin, digiri na etherification, solubility da abubuwan aikace-aikacen da suka danganci.Dangane da nau'in maye gurbin akan sarkar kwayoyin halitta, ana iya raba shi zuwa monoether da ether mai gauraye.MC da muke yawan amfani da ita shine monoether, kuma HPMC ɗin yana hade da ether.Methyl cellulose ether MC shine samfurin bayan ƙungiyar hydroxyl akan rukunin glucose na cellulose na halitta an maye gurbinsu ta hanyar methoxy.Samfuri ne da aka samu ta musanya wani ɓangare na ƙungiyar hydroxyl akan naúrar tare da ƙungiyar methoxy da wani ɓangaren tare da ƙungiyar hydroxypropyl.Tsarin tsarin shine [C6H7O2 (OH) 3-mn (OCH3) m [OCH2CH (OH) CH3] n] x Hydroxyethyl methyl cellulose ether HEMC, waɗannan sune manyan nau'ikan da ake amfani da su kuma ana siyarwa a kasuwa.
Dangane da solubility, ana iya raba shi zuwa ionic da wadanda ba ionic ba.Ethers cellulose masu narkewa da ruwa ba na ionic ba sun ƙunshi jerin abubuwa biyu na alkyl ethers da ethers hydroxyalkyl.Ana amfani da Ionic CMC musamman a cikin kayan wanka na roba, bugu da rini, abinci da binciken mai.Non-ionic MC, HPMC, HEMC, da dai sauransu ana amfani da su a cikin kayan gini, latex coatings, magani, yau da kullum sunadarai, da dai sauransu. Ana amfani da matsayin thickener, ruwa retaining wakili, stabilizer, dispersant da film forming wakili.
Gano ingancin ether cellulose:
Tasirin abun ciki na methoxyl akan inganci: riƙewar ruwa da aikin kauri
Ingantacciyar tasiri na hydroxyethoxyl/hydroxypropoxyl abun ciki: mafi girman abun ciki, mafi kyawun riƙewar ruwa.
Tasirin ingancin danko: mafi girman matsayi na polymerization, mafi girma da danko kuma mafi kyawun riƙewar ruwa.
Tasirin ingancin ingancin: mafi kyawun tarwatsawa da rushewa a cikin turmi, da sauri kuma mafi daidaituwa shine, da riƙe ruwan dangi shine mafi kyau.
Ingancin tasirin watsa haske: mafi girman matakin polymerization, mafi daidaituwa daidai matakin polymerization, da ƙarancin ƙazanta.
Gel zazzabi ingancin tasirin: Gel zafin jiki na ginin yana kusa da 75 ° C
Tasirin ingancin ruwa: <5%, ether cellulose yana da sauƙin ɗaukar danshi, don haka ya kamata a rufe shi kuma a adana shi.
Tasirin ingancin Ash: <3%, mafi girman ash, mafi ƙazanta
PH darajar ingancin tasiri: kusa da tsaka tsaki, cellulose ether yana da barga aiki tsakanin PH: 2-11
Lokacin aikawa: Fabrairu-14-2023