Iyini iHydroxyethyl cellulose?

IHydroxyethyl cellulose (HEC) iyi-fibrous emhlophe noma ekhanyayo, engenaphunga, engenabuthi noma eqinile eyimpuphu, elungiswe ukusabela kwe-etherification ye-alkaline cellulose ne-ethylene oxide (noma i-chlorohydrin).
1.Iziyalezo
1.1 kwengezwe ngokuqondile ngesikhathi sokukhiqiza

1. Faka amanzi ahlanzekile ebhakedeni elikhulu elifakwe umxube wokugunda okuphezulu.

2. Qala ukunyakazisa ngokuqhubekayo ngesivinini esiphansi bese uhlunga kancane kancane i-hydroxyethyl cellulose esixazululweni ngokulinganayo.

3. Qhubeka ugqugquzela kuze kube yilapho zonke izinhlayiya sezicwile.

4. Bese wengeza i-antifungal agent, izithasiselo ze-alkaline ezifana nezingulube, izinsiza ezihlakazayo, amanzi e-ammonia.

5. Hlanganisa kuze kube yilapho yonke i-cellulose ye-hydroxyethyl ichitheka ngokuphelele (i-viscosity yesisombululo ikhula kakhulu) ngaphambi kokwengeza ezinye izingxenye kufomula, futhi ugaye kuze kube umkhiqizo ophelile.

1.2 Ilungiselelwe ngotshwala kamama

Le ndlela iwukulungisa utshwala bukamama ngokugxila okuphezulu kuqala, bese ubufaka kupende we-latex. Inzuzo yale ndlela yukuthi inokuguquguquka okukhulu futhi ingafakwa ngokuqondile kupende ophelile, kodwa kufanele igcinwe kahle. Izinyathelo zifana nezinyathelo 1-4 ku-Method 1, umehluko wukuthi asikho isidingo sokuxubha kuze kube yilapho sihlakazeka ngokuphelele sibe yisisombululo se-viscous.

Le ndlela iwukulungisa utshwala bukamama ngokugxila okuphezulu kuqala, bese ubufaka kupende we-latex. Inzuzo yale ndlela yukuthi inokuguquguquka okukhulu futhi ingafakwa ngokuqondile kupende ophelile, kodwa kufanele igcinwe kahle. Izinyathelo zifana nezinyathelo 1-4 ku-Method 1, umehluko wukuthi asikho isidingo sokuxubha kuze kube yilapho sihlakazeka ngokuphelele sibe yisisombululo se-viscous.

2.Iphalishi lephenology
Njengoba izincibilikisi eziphilayo zingama-solvents ampofui-hydroxyethyl cellulose, lawa ma-solvents aphilayo angasetshenziswa ukulungisa iphalishi. Izincibilikisi eziphilayo ezisetshenziswa kakhulu uketshezi lwemvelo olufana ne-ethylene glycol, i-propylene glycol kanye nezakhi zefilimu (ezifana ne-ethylene glycol noma i-diethylene glycol butyl acetate) ekwenziweni kopende. Amanzi eqhwa nawo awasincibilikisi esibi, ngakho-ke amanzi eqhwa avame ukusetshenziswa kanye noketshezi oluphilayo ukuze kulungiswe iphalishi. I-hydroxyethyl cellulose yephalishi ingafakwa ngokuqondile kupende, futhi i-hydroxyethyl cellulose ihlukaniswe futhi yavuvukala ephalishi. Uma yengezwe kupende, iyancibilika ngokushesha futhi isebenze njenge-thickener. Ngemuva kokungeza, qhubeka ugqugquzela kuze kube yilapho i-hydroxyethyl cellulose ichitheka ngokuphelele futhi ifana. Ngokuvamile, iphalishi lenziwa ngokuxuba izingxenye eziyisithupha ze-organic solvent noma amanzi eqhwa nengxenye eyodwa ye-hydroxyethyl cellulose. Ngemuva kwemizuzu engaba ngu-6-30, i-hydroxyethyl cellulose izokwenziwa i-hydrolyzed futhi ivuvuke ngokusobala. Ehlobo, izinga lokushisa lamanzi ngokuvamile liphezulu kakhulu, ngakho-ke akufanelekile ukusebenzisa iphalishi.
3.Inkambu yohlelo lokusebenza

I-Hydroxyethyl cellulose Isetshenziswa njengama-adhesives, ama-surfactants, ama-colloidal protective agents, ama-disperants, njll.
Inezinhlobonhlobo zezicelo kupende, upende, ifayibha, ukudaya, ukwenza amaphepha, izimonyo, izibulala-zinambuzane, ukucubungula amaminerali, ama-ejenti okubuyisela uwoyela, kanye nemithi.

1. I-Hydroxyethyl cellulose ngokuvamile isetshenziswa njenge-thickener, i-ejenti yokuzivikela, i-adhesive, stabilizer kanye nesengezo sokulungiswa kwe-emulsion, i-jelly, i-ointment, i-lotion, i-eye cleanser, i-suppository kanye nethebhulethi, futhi isetshenziswa njengejeli le-hydrophilic kanye ne-skeleton Materials, ukulungiswa kwe amalungiselelo okukhululwa okuqhubekayo kohlobo lwe-matrix, futhi angasetshenziswa njengesiqinisi ekudleni.

2. I-Hydroxyethyl cellulose Isetshenziswa njenge-ejenti yokulinganisa embonini yendwangu, futhi njenge-ejenti eyisizayo yokuhlanganisa, ukuqina, ukuqinisa, nokusimamisa emikhakheni ye-electronics kanye ne-light industry.

3. Isetshenziswa njengesinciphisi sokujiyisa kanye nesinciphisi sokulahlekelwa uketshezi kuketshezi lokumba olusekelwe emanzini kanye noketshezi oluqedayo, futhi umphumela wokujiya ubonakala oketshezini lokumba olune-brine. Ingasetshenziswa futhi njengesinciphisi sokulahlekelwa uketshezi losimende womthombo wamafutha. Ingaxhunyaniswa ne-polyvalent metal ions ukwenza ijeli.

4. Umkhiqizo we-Hydroxyethyl cellulose usetshenziswa njenge-disperant ye-polymerization ye-petroleum yamanzi-based gel fracturing fluid, i-polystyrene ne-polyvinyl chloride, njll nge-fracturing. Ingasetshenziswa futhi njenge-emulsion thickener embonini yepende, i-hygrostat embonini ye-electronics, i-anticoagulant ye-cement kanye ne-ejenti yokugcina umswakama embonini yezokwakha. I-Ceramic industry glazing kanye ne-toothpaste binder. Ibuye isetshenziswe kabanzi ekunyatheliseni nasekudayeni, izindwangu, ukwenza amaphepha, imithi, inhlanzeko, ukudla, ugwayi, izibulala-zinambuzane kanye nezinto ezicisha umlilo.

5. Njenge-surfactant, i-colloidal protective agent, i-emulsification stabilizer ye-vinyl chloride, i-vinyl acetate namanye ama-emulsions, kanye ne-latex tackifier, i-disperant, i-dispersion stabilizer, njll. Isetshenziswa kakhulu kuma-coatings, imicu, ukudaya, ukwenza amaphepha, izimonyo, imithi yokubulala izinambuzane , njll. Futhi inokusetshenziswa okuningi ekuhloleni uwoyela nasembonini yemishini.

6. I-Hydroxyethyl cellulose ine-surface esebenzayo, i-thiening, i-suspending, ibopha, i-emulsifying, i-film-forming, i-dispersing, igcina amanzi kanye nemisebenzi yokuvikela ekulungiseleleni okuqinile kwezemithi kanye noketshezi.

7. Isetshenziswa njenge-polymeric dispersant ukuze kusetshenziswe i-petroleum water-based gel fracturing fluid, i-polyvinyl chloride ne-polystyrene. Ingasetshenziswa futhi njenge-emulsion thickener embonini yepende, i-anticoagulant ye-cement kanye ne-ejenti yokugcina umswakama embonini yezokwakha, i-glazing agent kanye ne-toothpaste adhesive embonini ye-ceramic. Ibuye isetshenziswe kabanzi emikhakheni yezimboni efana nokunyathelisa nokudaya, izindwangu, ukwenza amaphepha, imithi, inhlanzeko, ukudla, ugwayi nezibulala-zinambuzane.