Hydroxyethyl cellulose (HEC) waa jaale cad ama khafiif ah, aan ur lahayn, aan sun ahayn fibros ama budo leh oo adag oo lagu diyaariyey etherification of cellulose alkaline iyo ethylene oxide (ama chlorohydrin).Nonionic ethers cellulose milmay.Sababtoo ah HEC waxay leedahay sifooyin wanaagsan sida dhumucdi, laalitaan, kala firdhiyo, emulsifying, bonding, film-samaynta, ilaalinta qoyaanka iyo bixinta colloid ilaalinta, waxaa si ballaaran loo isticmaalo daryeelka maqaarka, sahaminta saliidda, daahan, dhismaha, daawada iyo cuntada, dunta, waraaqaha iyo polymers.Polymerization iyo qaybaha kale.40 heerka shaandhaynta mesh ≥ 99%;
Astaamaha muuqaalka: caddaan ilaa iftiin jaale fibros ah ama adag budo ah, aan sun ahayn, ur lahayn, si fudud ugu milmi biyaha.Aan milmi karin guud ahaan dareerayaasha organic.
Hydroxyethyl cellulose
Inta u dhaxaysa qiimaha PH ee 2-12, isbeddelka viscosity waa yar yahay, laakiin viscosity ayaa hoos u dhacaya wixii ka baxsan xadkan.Waxay leedahay sifooyinka dhumucda, laalidda, isku xidhka, emulsifying, firdhiya, haysashada qoyaanka iyo ilaalinta kolloid.Waxaa la diyaarin karaa xalalka kala duwan ee viscosity kala duwan.Waa mid aan deganayn marka la hoos joogo heerkulka iyo cadaadiska caadiga ah, iyada oo iska ilaalinaysa qoyaanka, kulaylka iyo heerkulka sare, waxayna leedahay milmayn milix ah oo gaar ah oo loogu talagalay dielectrics, iyo xalkeeda aqueous waxaa loo oggol yahay inuu ku jiro xaddi badan oo cusbo ah waana xasilloon.
Guryaha muhiimka ah: Sida Surfactant-ka aan-ionic ahayn, hydroxyethyl cellulose waxay leedahay sifooyinka soo socda marka lagu daro dhumuc, laalitaan, xidhidh, sabbeyn, filim-samayn, kala firdhisanaan, haynta biyaha iyo bixinta kolloysyada ilaalinta:
1. HEC waxay ku milmaysaa biyo kulul ama qabow, oo kuma soo da'do heerkulka sare ama karkarinta, taasoo ka dhigaysa inay leedahay noocyo kala duwan oo milmayn iyo sifooyin viscosity, iyo gelation-ka aan kuleylka ahayn;
2. Waa non-ionic waxayna la noolaan kartaa tiro balaadhan oo ah polymers-ka kale ee biyaha-milmi kara, surfactants iyo cusbada, waana dhumuc weyn oo kolloidal ah oo ka kooban xalal koronto leh oo sarreeya;
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 kolloid difaac ayaa leh awoodda ugu xooggan.
laalaabida aagga codsiga
Loo isticmaalo sida xabag, surfactant, wakiilka ilaalinta kolloid, kala firdhiye, emulsifier iyo xasiliyaha kala firdhiso.Waxay leedahay codsiyo badan oo kala duwan oo ah dahaarka, khadadka, fiilooyinka, rinjiyeynta, waraaqaha, qurxinta, sunta cayayaanka, farsamaynta macdanta, soo saarista saliidda iyo daawada.
1. Guud ahaan loo isticmaalo sida wakiilka dhumuc, wakiilka ilaalinta, xabagta, stabilizer iyo lagu daro diyaarinta emulsion, jel, cadar, lotion, wakiilka indhaha, suppository iyo kiniin, sidoo kale loo isticmaalo sida jel hydrophilic, qalabka qalfoofka, diyaarinta ee diyaarinta sii daayo qalfoof joogto ah. , iyo sidoo kale waxaa loo isticmaali karaa xasiliye ahaan cuntada.
2. Waxa loo isticmaalaa sidii wakiilka cabbirka ee warshadaha dunta, isku xidhka, dhumucyada, emulsifying, xasilinta iyo caawiyeyaasha kale ee qaybaha warshadaha iftiinka.
3. Loo isticmaalo sidii dhumucdiye iyo shaandhaynta sifaynta dareeraha qodista biyaha ku salaysan iyo dareeraha dhamaystirka, waxayna leedahay saamayn dhumuc muuqata oo ku jirta dareeraha qodista biyaha cusbada.Waxa kale oo loo isticmaali karaa sidii wakiilka xakamaynta luminta dareeraha ee sibidhka ceelka saliidda.Waxa lagu xidhi karaa ion bir polyvalent si loo sameeyo jel.
4. Alaabtan waxa loo isticmaalaa sida kala firdhiso dareere jel-biyood ku salaysan, polystyrene iyo chloride polyvinyl ee wax soo saarka saliidda.Waxa kale oo loo isticmaali karaa dhumucda emulsion ee warshadaha rinjiga, iska caabinta huurka xasaasiga ah ee warshadaha elektiroonigga ah, xakamaynta xinjirowga sibidhka iyo wakiilka ilaalinta qoyaanka ee warshadaha dhismaha.Xabagta glazing iyo cadayga ee warshadaha dhoobada.Waxa kale oo si weyn loogu isticmaalaa daabacaadda iyo rinjiyeynta, dhar-samaynta, waraaqaha, dawooyinka, nadaafadda, cuntada, sigaarka, sunta cayayaanka iyo walxaha dab-damiska.
5. Waxaa loo isticmaalaa sida surfactant, wakiilka ilaalinta kolloid, emulsion stabilizer for vinyl chloride, vinyl acetate iyo emulsions kale, iyo sidoo kale tackifier cinjirka, kala firdhiyey, kala firdhiyey stabilizer, iwm sunta cayayaanka, iwm. Waxa kale oo ay leedahay adeegsi badan oo ku saabsan soo saarista saliidda iyo warshadaha mishiinada.
6. Hydroxyethyl cellulose waxa uu leeyahay dhaqdhaqaaqa dusha, dhumucdiisuna, laalid, xidhitaan, emulsifying, film-samaynta, kala firdhiyey, haynta biyaha iyo bixinta ilaalinta in dawooyinka adag iyo diyaarinta dareere ah.
7. Waxa loo istcimaalaa kala firdhiso ka faa'iidaysiga dareeraha jelka biyaha ku salaysan ee batroolka, chloride polyvinyl iyo polystyrene.Waxa kale oo loo isticmaali karaa dhumucda emulsion ee warshadaha rinjiga, xakamaynta xinjirowga sibidhka iyo wakiilka haynta qoyaanka ee warshadaha dhismaha, wakiilka glazing iyo xabagta cadayga ee warshadaha dhoobada.Waxa kale oo si weyn loogu isticmaalaa daabacaadda iyo rinjiyeynta, dhar-samaynta, waraaqaha, dawooyinka, nadaafadda, cuntada, sigaarka iyo sunta cayayaanka iyo beeraha kale ee warshadaha.
Laablaabida waxqabadka alaabta
1. HEC waxay ku milmaysaa biyo kulul ama qabow, oo kuma soo da'do heerkulka sare ama karkarinta, si ay u leedahay noocyo kala duwan oo milmayn iyo sifooyin viscosity, iyo gelation non-thermal;
2. Ionic aan ahayn lafteedu waxay la noolaan kartaa tiro balaadhan oo ah polymers-ka kale ee biyaha-milmi kara, surfactants iyo cusbada, waana dhumuc weyn oo kolloidal ah oo ka kooban xalal diirran oo sarreeya;
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 kolloid difaac ayaa leh awoodda ugu xooggan.
Sida loo laalaabiyo
Si toos ah ugu biir wax soo saarka
1. Ku dar biyo nadiif ah baaldi weyn oo ku qalabaysan qasiyaha dhogorta sare leh.
2. Bilow inaad si joogto ah u walaaqdo xawaare yar oo si tartiib ah u kala miir hydroxyethyl cellulose si siman xalka.
3. Sii wad walaaq ilaa dhammaan qaybaha la qooyay.
4. Ka dibna ku dar wakiilka antifungal, waxyaabaha alkaline-ka ah sida midabada, kala firdhinta qalabka, 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.
Doorka hydroxyethyl cellulose ee isku dhafka kiimikada ee alaabta la isku qurxiyo?Iskudhisyada polymer-ka ee biyaha ku milma ee loo isticmaalo isqurxintu waxa ay inta badan u qaybsamaan laba qaybood: dabiici ah iyo synthetic.
Iskudhisyada polymer-ka ee dabiiciga ah ee biyaha ku milma waxaa ka mid ah: istaarijka, xabagta dhirta, jelatin xayawaanka, iwm., laakiin tayada waa mid aan degganayn, si sahlan u saameeya cimilada, deegaanka juqraafi, wax-soo-saarka xaddidan, oo si fudud u xumaaday bakteeriyada iyo caaryada.
Iskudhisyada polymer-ka ee biyaha-dhalashada ah waxaa ka mid ah alkolada polyvinyl, polyvinylpyrrolidone, iwm, kuwaas oo leh sifooyin deggan, cuncun maqaarka oo hooseeya iyo qiimo jaban, sidaas darteed waxay beddeleen xeryahooda polymer-ka ee dabiiciga ah ee biyaha ku milma waxayna noqdeen ilaha ugu muhiimsan ee alaabta ceeriin kolloid.
Waxa kale oo loo sii kala qaybiyaa semi-synthetic-ka iyo xeryahooda polymer-ka ee biyaha-soluble.
Iskudhisyada polymer-ka ee semi-synthetic-ka ah ayaa inta badan la isticmaalaa: methyl cellulose, ethyl cellulose, sodium carboxymethyl cellulose, hydroxyethyl cellulose, iyo xanjo guar iyo derivatives.
Iskudhisyada polymer-ka ee biyaha-dhalatada ah ayaa caadi ahaan loo isticmaalaa: alkolada polyvinyl, polyvinylpyrrolidone, polymer acrylic acid, iwm.
Kuwaas waxa loo isticmaalaa waxyaalaha la isku qurxiyo sida xabag, dhumucyada, filim hore, iyo xasiliyayaasha emulsion.
Waqtiga boostada: Nov-11-2022