Focus on Cellulose ethers

I-Hydroxyethyl cellulose Thickener

IHydroxyethyl cellulose (HEC) iyi-fibrous emhlophe noma ekhanyayo, engenaphunga, engenabuthi noma eqinile eyimpuphu, elungiswa ngokusabela kwe-etherification ye-alkaline cellulose ne-ethylene oxide (noma i-chlorohydrin). I-Nonionic soluble cellulose ethers. Njengoba i-HEC inezakhiwo ezinhle zokuqina, ukumisa, ukuhlakazeka, ukuhlanganisa, ukubopha, ukwenza ifilimu, ukuvikela umswakama nokuhlinzeka nge-colloid evikelayo, iye yasetshenziswa kabanzi ekuhloleni amafutha, ukugqoka, ukwakhiwa, imithi, ukudla, izindwangu, ukwenza iphepha kanye ne-polymerization. nezinye izinkambu. Izinga le-40 le-mesh sieving ≥ 99%;

Ukubukeka: okumhlophe kuya kokuphuzi okukhanyayo okuyi-fibrous noma okuqinile okuyimpuphu, okungewona ubuthi, akunambitheki, kuncibilika emanzini. Ayincibiliki kuzincibilikisi ezivamile zemvelo.

I-Hydroxyethyl celluloseukuqina

I-viscosity ishintsha kancane kububanzi bevelu engu-PH 2-12, kodwa i-viscosity yehla ngale kwalolu bubanzi. Inezici zokuqina, ukumisa, ukubopha, i-emulsifying, ukusabalalisa, ukugcina umswakama nokuvikela i-colloid. Izixazululo kumabanga ahlukene we-viscosity zingalungiswa. Ayizinzile ngaphansi kwezinga lokushisa elivamile nokucindezela, gwema umswakama, ukushisa, nezinga lokushisa eliphezulu, futhi ibe nokuncibilika okuhle kakhulu kukasawoti kuma-dielectrics, futhi isisombululo sayo esinamanzi sivumela ukugcwala okuphezulu kukasawoti ukuthi uhlale uzinzile.

Izakhiwo ezibalulekile: 

Njenge-surfactant engeyona i-ionic, i-hydroxyethyl cellulose inalezi zakhiwo ezilandelayo ngaphezu kokuqina, ukumisa okwesikhashana, ukubopha, ukuntanta, ukwenza ifilimu, ukuhlakazeka, ukugcinwa kwamanzi kanye nokuhlinzeka nge-colloid evikelayo:

1. I-HEC iyancibilika emanzini ashisayo noma emanzini abandayo, futhi ayidli ngokushisa okuphezulu noma ukubila, ukuze ibe nezici eziningi zokuncibilika kanye nezici ze-viscosity, kanye ne-gelation engashisi;

2. Ayiyona i-ionic futhi ingahlala nohlu olubanzi lwama-polymers ancibilika emanzini, ama-surfactants, nosawoti. Kuyinto enhle kakhulu ye-colloidal thickener yezixazululo eziphezulu ze-electrolyte;

3. Umthamo wokugcina amanzi uphakeme ngokuphindwe kabili kunalowo we-methyl cellulose, futhi unokulawula ukugeleza okungcono.

4. Uma kuqhathaniswa ne-methyl cellulose eyaziwayo kanye ne-hydroxypropyl methyl cellulose, ikhono lokuhlakaza le-HEC libi kakhulu, kodwa ikhono le-colloid lokuvikela liqine kakhulu.

Inkambu yohlelo lokusebenza 

Isetshenziswa njenge-adhesive, surfactant, i-colloidal protective agent, dispersant, emulsifier kanye ne-dispersion stabilizer, njll. Inezinhlelo eziningi ezisetshenziswa emkhakheni wezingubo zokumboza, oyinki, imicu, ukudaya, ukwenza amaphepha, izimonyo, izibulala-zinambuzane, ukucutshungulwa kwamaminerali, ukukhipha uwoyela kanye umuthi.

1. Ngokuvamile isetshenziswa njenge-thickener, i-ejenti evikelayo, i-adhesive, stabilizer, kanye nesengezo ekulungiseni ama-emulsions, ama-jellies, amafutha okugcoba, ama-lotions, izihlanzi zamehlo, ama-suppositories, namaphilisi. Ibuye isetshenziswe njengejeli le-hydrophilic kanye ne-Skeleton Materials, ukulungiswa kohlobo lwe-matrix-ukukhululwa okuqhubekayo kwamalungiselelo, futhi ingasetshenziswa njengesiqinisi ekudleni.

2. Isetshenziswa njenge-ejenti yokulinganisa embonini yendwangu, futhi njenge-ejenti eyisizayo yokuhlanganisa, ukujiya, ukuqinisa, nokusimamisa emikhakheni ye-electronics kanye nemboni yokukhanya.

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. Lo mkhiqizo usetshenziswa njenge-dispersant ye-polymerization ye-petroleum yamanzi-based gel fracturing fluid, i-polystyrene ne-polyvinyl chloride, njll. 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.

Ukusebenza Komkhiqizo 

1. I-HEC iyancibilika emanzini ashisayo noma emanzini abandayo, futhi ayidli ngokushisa okuphezulu noma ukubila, ukuze ibe nezici eziningi zokuncibilika kanye nezici ze-viscosity, kanye ne-gelation engashisi;

2. Ayiyona i-ionic futhi ingahlala namanye ama-polymers ancibilika emanzini, ama-surfactants nosawoti ebangeni elibanzi. Kuyi-thickener ye-colloidal enhle kakhulu yezixazululo eziqukethe ama-dielectrics aphezulu;

3. Umthamo wokugcina amanzi uphakeme ngokuphindwe kabili kunalowo we-methyl cellulose, futhi unokulawula ukugeleza okungcono;

4. Uma kuqhathaniswa ne-methyl cellulose eyaziwayo kanye ne-hydroxypropyl methyl cellulose, ikhono lokuhlakaza le-HEC libi kakhulu, kodwa ikhono le-colloid lokuvikela liqine kakhulu.

Isetshenziswa kanjaniI-HEC?

ingezwe 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.


Isikhathi sokuthumela: Dec-29-2022
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