Yintoni iHydroxyethyl cellulose?

I-Hydroxyethyl cellulose (HEC) yi-cellulose emhlophe okanye ekhanyayo, engenavumba, engeyotyhefu okanye eqinile, elungiswe yi-etherification reaction ye-alkaline cellulose kunye ne-ethylene oxide (okanye i-chlorohydrin).
1.Imiyalelo
1.1 yongezwe ngokuthe ngqo ngexesha lokuvelisa

1. Yongeza amanzi acocekileyo kwibhakethi enkulu exhotyiswe ngomxube wokucheba ophezulu.

2. Qala ukuvuselela ngokuqhubekayo ngesantya esiphantsi kwaye usihluze ngokukhawuleza i-hydroxyethyl cellulose kwisisombululo ngokulinganayo.

3. Qhubeka uvuselela de onke amaqhekeza afakwe emanzini.

4. Emva koko yongeza i-agent ye-antifungal, izongezo ze-alkaline ezifana ne-pigments, i-dispersing aids, amanzi e-ammonia.

5. Gxuma de kube yonke i-cellulose ye-hydroxyethyl ichithwe ngokupheleleyo (i-viscosity yesisombululo iyanda kakhulu) ngaphambi kokuba ungeze ezinye izinto kwifomula, kwaye ugaye de kube yimveliso egqityiweyo.

1.2 Bulungiselelwe ngotywala bukamama

Le ndlela kukulungiselela utywala oomama kunye noxinzelelo oluphezulu kuqala, kwaye ubongeze kwipeyinti yelatex. Inzuzo yale ndlela kukuba inokuguquguquka okukhulu kwaye inokongezwa ngokuthe ngqo kwipeyinti egqityiweyo, kodwa kufuneka igcinwe ngokufanelekileyo. Amanyathelo afana naManyathelo 1-4 kwiNdlela yoku-1, umahluko kukuba akukho mfuneko yokuvuselela ide ichithwa ngokupheleleyo kwisisombululo se-viscous.

2.Isidudu sephenology
Ekubeni izinyibilikisi zendalo zizinyibilikisi ezihlwempuzekileyo zei-hydroxyethyl cellulose, ezi zinyibilikisi eziphilayo zingasetyenziselwa ukulungiselela i-porridge. Izona zinyibiliki zisetyenziswa ngokuqhelekileyo zilulwelo lwe-organic ezifana ne-ethylene glycol, i-propylene glycol kunye ne-filmforms (ezifana ne-ethylene glycol okanye i-diethylene glycol butyl acetate) kwimiqulu yepeyinti. Amanzi omkhenkce nawo asisinyibilikisi esilambathayo, ngoko ke amanzi omkhenkce adla ngokusetyenziswa kunye nolwelo lwendalo ukulungiselela isidudu. I-cellulose ye-hydroxyethyl ye-porridge inokudibaniswa ngokuthe ngqo kwipeyinti, kwaye i-cellulose ye-hydroxyethyl iye yahlula kwaye yahlutha kwi-porridge. Xa ifakwe kwipeyinti, iyancibilika ngokukhawuleza kwaye isebenze njenge-thickener. Emva kokongeza, qhubeka uvuselela de i-hydroxyethyl cellulose ichithwe ngokupheleleyo kwaye ifane. Ngokuqhelekileyo, isidudu senziwa ngokuxuba iinxalenye ezintandathu ze-organic solvent okanye amanzi omkhenkce kunye nenxalenye enye ye-hydroxyethyl cellulose. Emva kwemizuzu emi-6 ukuya kwengama-30, i-hydroxyethyl cellulose iya kwenziwa i-hydrolyzed kwaye idumbe ngokucacileyo. Ehlotyeni, ubushushu bamanzi buphezulu kakhulu, ngoko ke akufanelekanga ukusebenzisa isidudu.
3.Ibala lesicelo

I-Hydroxyethyl cellulose Isetyenziswe njengama-adhesives, i-surfactants, i-colloidal protective agents, i-dispersants, njl.
Inoluhlu olubanzi lwezicelo kwipeyinti, ipeyinti, ifayibha, ukudaya, ukwenza iphepha, izimonyo, i-pesticides, i-mineral processing, i-oyile yokubuyisela i-oyile kunye neyeza.

1. I-Hydroxyethyl cellulose isetyenziswa ngokubanzi njenge-thickener, i-agent ekhuselayo, i-adhesive, i-stabilizer kunye ne-additive yokulungiswa kwe-emulsion, i-jelly, i-ointment, i-lotion, isicoci samehlo, i-suppository kunye ne-tablet, kwaye isetyenziswe njenge-hydrophilic gel kunye ne-skeleton Materials, ukulungiswa kwe I-matrix-uhlobo oluzinzileyo lwamalungiselelo okukhululwa, kwaye lunokusetyenziswa njengento yokuzinzisa ekutyeni.

2. Iselulosi yeHydroxyethyl Isetyenziswa njenge-agent yokulinganisa kushishino lwempahla eluka, kwaye njenge-arhente encedisayo yokudibanisa, ukutyebisa, ukumilisela, kunye nokuzinzisa kumacandelo oshishino lombane kunye nokukhanya.

3. Isetyenziswa njenge-thickener kunye nesinciphisi sokulahleka kolwelo kulwelo olusekwe emanzini kunye nolwelo lokugqibezela, kwaye umphumo wokuqina uyabonakala kulwelo lokugrumba i-brine. Isenokusetyenziswa njengesinciphisi ilahleko ulwelo kwi oyile kakuhle isamente. Inokudityaniswa kunye ne-polyvalent metal ions ukwenza ijeli.

4. Imveliso ye-Hydroxyethyl cellulose isetyenziswe njenge-dispersant ye-polymerization ye-petroleum yamanzi esekelwe kwi-gel fracturing fluid, i-polystyrene kunye ne-polyvinyl chloride, njl. Isenokusetyenziswa njenge-emulsion thickener kwishishini lepeyinti, i-hygrostat kwishishini le-electronics, i-anticoagulant ye-cement kunye ne-agent yokugcinwa komswakama kwishishini lokwakha. I-Ceramic industry glazing kunye ne-toothpaste binder. Ikwasetyenziswa ngokubanzi ekushicileleni nasekudayeni, amalaphu, ukwenza iphepha, amayeza, ucoceko, ukutya, imidiza, izibulali-zinambuzane kunye nezinto zokucima umlilo.

5. Njenge-surfactant, i-agent ekhuselayo ye-colloidal, i-emulsification stabilizer ye-vinyl chloride, i-vinyl acetate kunye nezinye i-emulsions, kunye ne-latex tackifier, i-dispersant, i-dispersion stabilizer, njl. , njl njl. Ikwanalo nokusetyenziswa okuninzi ekuhloleni ioli kunye noshishino loomatshini.

6. I-Hydroxyethyl cellulose ine-surface esebenzayo, i-thickening, i-suspending, i-emulsifying, i-film-forming, i-dispersing, igcina amanzi kunye nemisebenzi yokukhusela kwi-pharmaceutical solid and liquid preparations.

7. Isetyenziswe njenge-polymeric dispersant ekusebenziseni i-petroleum yamanzi-based gel fracturing fluid, i-polyvinyl chloride kunye ne-polystyrene. Ingaphinda isetyenziswe njenge-emulsion thickener kwishishini lepeyinti, i-cement anticoagulant kunye ne-agent egcina umswakama kwishishini lokwakha, i-agent e-glazing kunye ne-toothpaste adhesive kwi-ceramic industry. Ikwasetyenziswa ngokubanzi kumashishini anjengokuprinta kunye nokudaya, amalaphu, ukwenza iphepha, amayeza, ucoceko, ukutya, icuba kunye nezibulali zinambuzane.

Ixesha lokuposa: Jan-21-2023