Hydroxyethyl cellulose (HEC) waa huruud cad ama khafiif ah, aan ur lahayn, aan sun ahayn fayraska ama budada adag, kaas oo lagu diyaariyo falcelinta etherification ee cellulose alkaline iyo ethylene oxide (ama chlorohydrin). Nonionic ethers cellulose milmay. Maaddaama HEC ay leedahay sifooyin wanaagsan oo dhumucdiisuna waxay tahay, hakin, kala firdhiyo, emulsifying, bonding, film-samaynta, ilaalinta qoyaanka iyo bixinta kolloid ilaalinta, waxa si weyn loogu isticmaalay sahaminta saliidda, dahaarka, dhismaha, daawada, cuntada, dunta, waraaqaha iyo polymer Polymerization. iyo goobo kale. 40 heerka shaandhaynta mesh ≥ 99%;
Muuqashada: caddaan ilaa iftiin jaale ah fibros ama budada adag, aan sun ahayn, aan dhadhamin, biyo ku milmay. Aan lagu milmi karin dareerayaasha dabiiciga ah ee caadiga ah.
Hydroxyethyl cellulosedhumuc weyn leh
Viscosity-ku wax yar ayuu isu beddelaa inta u dhaxaysa qiimaha PH 2-12, laakiin mawgu wuu yaraadaa wixii ka baxsan xadkan. Waxay leedahay sifooyinka dhumucda, laalista, xidhitaanka, emulsifying, firdhiya, ilaalinta qoyaanka iyo ilaalinta kolloid. Xalka noocyada viscosity ee kala duwan ayaa la diyaarin karaa. Aan degganayn heerkulka caadiga ah iyo cadaadiska, ka fogow huurka, kulaylka, iyo heerkulka sare, oo waxay leeyihiin milmayn milix ah oo si gaar ah u wanaagsan aaladaha dielectrics, iyo xalkeeda aqueous waxay u oggolaanaysaa xaddi badan oo milix ah inay xasilloonaadaan.
Guryaha muhiimka ah:
Sida surfactant aan-ionic ahayn, hydroxyethyl cellulose waxay leedahay sifooyinka soo socda marka lagu daro dhumuc, laalitaan, xidhidh, sabbayn, filim samaynta, kala firdhisan, haynta biyaha iyo bixinta kolloid ilaalinta:
1. HEC waxay ku milmaysaa biyo kulul ama biyo qabow, oo kuma soo da'aan heerkulka sare ama karkarinta, si ay u leedahay noocyo kala duwan oo milmayn iyo sifooyin viscosity, iyo gelation non-thermal;
2. Waa non-ionic oo waxay la noolaan kartaa tiro balaadhan oo ah polymers kale oo biyo-milmi kara, surfactants, iyo cusbo. Waa dhumuc weyn oo kolloidal ah oo loogu talagalay xalalka korantada ee xoogga leh;
3. Awoodda haynta biyuhu waxay laban laab ka badan tahay tan methyl cellulose, waxayna leedahay nidaaminta qulqulka wanaagsan.
4. Marka la barbar dhigo methyl cellulose ee la aqoonsan yahay iyo hydroxypropyl methyl cellulose, awoodda kala firdhisan ee HEC waa tan ugu xun, laakiin awoodda kolloid ilaalinta ayaa ah kan ugu xooggan.
Goobta codsiga
Loo isticmaalo sida koolo, surfactant, wakiilka ilaalinta kolloidal, kala firdhiyey, emulsifier iyo kala firdhiyey stabilizer, iwm Waxay leedahay tiro balaadhan oo ah codsiyada beeraha daahan, khadadka, fiilooyinka, midabaynta, waraaqaha, isku qurxiyo, sunta cayayaanka, processing macdanta, soo saaridda saliidda iyo daawo.
1. Waxaa guud ahaan loo isticmaalaa sidii dhumuc, wakiilka ilaalinta, koollada, xasiliyaha, iyo wax lagu daro diyaarinta emulsions, jellies, boomaatada, kiriimyada, nadiifiyaha indhaha, suppositories, iyo kiniiniyada. Waxa kale oo loo istcimaalayaa sida jel-biyoodka iyo Qalfoofka Qalfoofka, diyaarinta nooca matrix-ka diyaarinta sii-deynta joogtada ah, waxaana sidoo kale loo isticmaali karaa xasiliye cuntada.
2. Loo isticmaalo sidii wakiilka cabbirka ee warshadaha dunta, iyo sidii wakiil caawiye ee isku xidhka, dhumucda, emulsifying, iyo xasilinta qaybaha warshadaha elegtarooniga ah iyo iftiinka.
3. Waxa loo istcimaalaa dhumucdiye iyo luminta dareeraha dareeraha qodista biyaha ku salaysan iyo dareeraha dhamaystirka, saamaynta dhumucduna waxay ku caddahay dareeraha qodista brine. Waxa kale oo loo isticmaali karaa dhimis luminta dareeraha sibidhka ceelka saliidda. Waxa lagu xidhi karaa ion bir polyvalent si loo sameeyo jel.
4. Alaabtan waxaa loo isticmaalaa sida kala-saarid loogu talagalay polymerization of petroleum biyaha ku salaysan jel jebinta dareere, polystyrene iyo polyvinyl chloride, iwm by jabay. Waxa kale oo loo isticmaali karaa sidii dhumucda emulsion ee warshadaha rinjiga, hygrostat ee warshadaha elektiroonigga ah, xinjirowga lidka ku ah sibidhka iyo wakiilka qoyaanka ilaalinta ee warshadaha dhismaha. Dhaldhalaalka warshadaha dhoobada iyo dawada cadayga. Waxa kale oo si weyn loogu isticmaalaa daabacaadda iyo midabaynta, dunta, waraaqaha samaynta, daawada, nadaafadda, cuntada, sigaarka, sunta cayayaanka iyo walxaha dab-damiska.
5. Sida surfactant, wakiilka ilaalinta kolloidal, emulsification stabilizer for vinyl chloride, vinyl acetate iyo emulsions kale, iyo sidoo kale tackifier cinjirka, kala firdhiso, kala firdhiso stabilizer, iwm. , iwm. Waxa kale oo ay leedahay adeegsi badan oo dhinaca sahaminta shidaalka iyo warshadaha.
6. Hydroxyethyl cellulose waxa uu leeyahay dusha firfircoon, dhumucdiisuna, laalid, xidhitaan, emulsifying, film-samaynta, kala firdhiyey, biyo-hayntiisa iyo hawlaha ilaalinta ee daawooyinka adag iyo diyaarinta dareere ah.
7. Waxa loo istcimaalaa kala firdhiso polymeric ka faa'iidaysiga dareeraha jelka biyaha ku salaysan ee batroolka, chloride polyvinyl iyo polystyrene. Waxa kale oo loo isticmaali karaa sidii dhumuc emulsion ah warshadaha rinjiga, xinjirowga lidka ku ah sibidhka iyo wakiilka qoyaanka ilaalinta ee warshadaha dhismaha, wakiilka dhaldhalaalka iyo koollada cadayga ee warshadaha dhoobada. Waxa kale oo si weyn looga isticmaalaa goobaha warshadaha sida daabacaadda iyo rinjiyeynta, dunta, waraaqaha, dawooyinka, nadaafadda, cuntada, sigaarka iyo sunta cayayaanka.
Waxqabadka Alaabta
1. HEC waxay ku milmaysaa biyo kulul ama biyo qabow, oo kuma soo da'aan heerkulka sare ama karkarinta, si ay u leedahay noocyo kala duwan oo milmayn iyo sifooyin viscosity, iyo gelation non-thermal;
2. Waa non-ionic waxayna la noolaan kartaa polymers-ka kale ee biyaha-milmi kara, surfactants iyo milix oo kala duwan. Waa dhumuc weyn oo kolloidal ah oo loogu talagalay xalalka ka kooban dielectrics-fiirsashada sare;
3. Awoodda xajinta biyaha waxay laba jeer ka badan tahay tan methyl cellulose, waxayna leedahay nidaaminta qulqulka wanaagsan;
4. Marka la barbar dhigo methyl cellulose ee la aqoonsan yahay iyo hydroxypropyl methyl cellulose, awoodda kala firdhisan ee HEC waa tan ugu xun, laakiin awoodda kolloid ilaalinta ayaa ah kan ugu xooggan.
Sida loo isticmaaloHEC?
si toos ah loogu daray waqtiga wax soo saarka
1. Ku dar biyo nadiif ah baaldi weyn oo ku qalabaysan qasiyaha dhogorta sare.
2. Bilow inaad si joogto ah u walaaq xawaare hoose oo si tartiib ah u kala miir hydroxyethyl cellulose si siman xalka.
3. Sii wad walaaq ilaa dhammaan qaybaha ay qooyaan.
4. Ka dibna ku dar wakiilka antifungal, waxyaabaha alkaline-ka ah sida midabada, qalabka kala firdhiya, biyaha ammonia.
5. Walaaq ilaa dhammaan cellulose hydroxyethyl ay si buuxda u milmaan (viskosity ee xalku si aad ah ayuu u kordhiyaa) ka hor intaadan ku darin qaybaha kale ee caanaha, oo shiid ilaa alaabta la dhammeeyo.
Waqtiga boostada: Dec-29-2022