I-Cellulose Ether yi-polymer compact antherses kusuka ku-cellulose yemvelo ngenqubo yokusheshisa, futhi ingumenzeli omkhulu we-vention kanye ne-ejenti yokugcina amanzi.
Isendlalelo Sokucwaninga
I-Cellulose Afers isetshenziswe kabanzi ngodaka oluxutshwe olomile eminyakeni yamuva nje, okusetshenziswa kakhulu yilezi zimpikiswano ezingezona ze-mollulose, kufaka phakathi i-methdylylsose ether (i-hydroxyethyl cellulose ether (i-hydroxyethyl cellulose ether (i-hydroxyethyl cellulose ether (HECC), ) ne-hydroxypropyllylylylylylylylylylylylylylylllllule cellulose ether (HPMC). Njengamanje, awekho ama-GROUNTURE amaningi ngendlela yokulinganisa yokuvunyelwa kwe-purbulosise ether perher. Ezweni lethu, ezinye izindinganiso ezithile kuphela ezisho indlela yokuhlola ye-viscosiose ether ether.
Indlela yokulungiselela ye-Cellulose Ether Solution
Ukulungiselela i-methyl cellulose ikhambi lesixazululo
I-methyl celtule Ngenxa ye-hydrophobicity ye-methyl group, i-cellulose etr Solutions equkethe amaqembu we-methyl inezakhiwo ezishisayo, okungukuthi, zingamanzi aphansi emanzini okushisa aphezulu kunamazinga okushisa awo akwa-gelation (cishe ama-60-80 ° C). Ukuze uvikele isixazululo se-cellulose ether kusuka ekubumbeni ama-agglomerates, ashise amanzi angaphezulu kwe-gel lokushisa, cishe ama-80 ~ 90 ° C, angeze i-cellulose ether powder emanzini ashisayo, uvuse ukusakazeka bese uphonsa Ukushisa, kungalungiswa kwikhambi le-ether ye-ether elifanayo.
Izakhiwo ze-Solubity ze-methylcellulose ezingekho emvuleni - eziqukethe izitha
Ukuze ugweme i-agglomeraration of cellulose ether ngesikhathi senqubo yokuchithwa, abakhiqizi kwesinye isikhathi benza ukwelashwa kwamakhemikhali kumakhemikhali we-cellulose ether ukuze aphulumise ukuqothulwa. Inqubo yayo yokuchithwa kwenzeka ngemuva kokuthi i-cellulose ether ihlakazeke ngokuphelele, ngakho-ke ingahlakazeka ngokuqondile emanzini abandayo ngenani elingenagamba le-PH ngaphandle kokuqamba ama-agglomerates. Inani eliphakeme lekhambi lekhambi, isikhathi esifushane sokuqothula isikhathi se-cellulose ether ngezakhiwo eziwunciphise. Lungisa inani le-PH lesisombululo ngenani eliphakeme. I-Alkalininity izoqeda insonlity ebambezelekile ye-cellulose ether, okwenza i-cellulose ether ukwakha ama-agglomerates lapho ichithwa. Ngakho-ke, inani le-PH lekhambi kufanele liphakanyiswe noma kwehliswe ngemuva kokuthi i-cellulose ether ihlakazeka ngokuphelele.
Izakhiwo ze-Solubity ze-Methylcellulose enezimpondo eziphathwayo
Ukulungiselela i-Hydroxyethylellllellllelllose ger solution
Isixazululo se-Hydroxyyethylellsose ether (HEC) asinayo impahla ye-gelation eshisayo, ngakho-ke, i-hec ngaphandle kokwelashwa komhlaba nayo izokwakha ama-agglomerates emanzini ashisayo. Abakhiqizi ngokuvamile benza ukwelashwa okungaphezulu kwamakhemikhali ku-hec oluyimpuphu ukuze kubambezele ukuqedwa, ukuze kuhlakazeke ngqo emanzini abandayo ngenani elingenagamba le-PH ngaphandle kokuqamba ama-agglomerates. Ngokufanayo, ngesisombululo nge-alkalinity ephezulu, i-HEC nayo ingakha ama-agglomerates ngenxa yokulahlekelwa yi-solubity ukulahlekelwa. Njengoba i-slurry kasimende iyi-alkali ngemuva kwe-hydration kanye nenani le-PH lekhambi liphakathi kuka-12 no-13, izinga lokuchithwa kwe-ether ephethwe yi-ether ephethwe yikholi lishesha kakhulu.
Izakhiwo ze-Solubity ze-hec ephethwe ngaphandle
Isiphetho Nokuhlaziywa
1. Inqubo yokuhlakazeka
Ukuze ugweme imiphumela emibi ngesikhathi sokuhlolwa ngenxa yokuchithwa kancane kwezinto zokwelashwa komhlaba, kunconyelwa ukusebenzisa amanzi ashisayo ukulungiselela.
2. Inqubo yokupholisa
Izixazululo zeCellulose eTR kufanele zivuswe futhi ziphonswe futhi zipholile ekushiseni okukhona ukuze kunciphise izinga lokupholisa, elidinga izikhathi zokuhlola ezeluliwe.
3. Inqubo yokuvuselela
Ngemuva kokuthi i-cellulose ether ingezwe emanzini ashisayo, qiniseka ukuthi uqhubeka uvusa. Lapho izinga lokushisa lamanzi liyehla ngaphansi kokushisa kwejeli, i-cellulose ether izoqala ukuncibilikisa, futhi ikhambi lizobe libonakale kancane kancane. Ngalesi sikhathi, ijubane lokuvusa lelo kufanele lincishiswe. Ngemuva kokuthi isixazululo sifinyelele ebonakalayo ethile, sidinga ukuma isikhathi esingaphezu kwamahora ayi-10 ngaphambi kokuba ama-bubble athenge kancane kancane ukuze aqhume futhi anyamalale.
Ama-Bubble Air eCellulose Ether Solution
4. Inqubo yokuxosha i-hydrating
Izinga le-cellulose ether namanzi kufanele lilinganiswe ngokunembe, bese lizama ukungalindi ikhambi ukufinyelela okuphezulu ngaphambi kokuphinda ugcwalise amanzi.
5. Ukuhlolwa kwe-Viscosity
Ngenxa ye-Thixotropy yekhambi le-cellulose ether, lapho ihlola ukubonakala kwayo, lapho i-rotor ye-rotor yokushintshana ifakwe kwikhambi, lizophazamisa isixazululo futhi lithinte imiphumela yokulinganisa. Ngakho-ke, ngemuva kokuthi i-rotor ifakwe kwikhambi, kufanele livunyelwe ukuma imizuzu emi-5 ngaphambi kokuhlolwa.
Isikhathi sePosi: Mar-22-2023