IHydroxyethyl cellulose (HEC) iyi-fibrous emhlophe noma ekhanyayo, engenaphunga, eqinile engenabuthi noma eyimpuphu elungiswe ngokufakwa kwe-alkaline cellulose ne-ethylene oxide (noma i-chlorohydrin). I-Nonionic soluble cellulose ethers. Ngenxa yokuthi i-HEC inezakhiwo ezinhle ezifana nokuqina, ukumisa, ukuhlakazeka, ukuhlanganisa, ukubopha, ukwenza ifilimu, ukuvikela umswakama nokuhlinzeka ngama-colloid okuzivikela, sekusetshenziswe kabanzi ekunakekelweni kwesikhumba, ukuhlola uwoyela, ukugqoka, ukwakhiwa, imithi nokudla, izindwangu, ukwenza iphepha kanye nama-polymers. I-polymerization nezinye izinkambu. Izinga le-40 le-mesh sieving ≥ 99%;
Izici zokubukeka: okumhlophe kuya kokuphuzi okukhanyayo njenge-fibrous noma okuqinile okuyimpuphu, akunabuthi, akunaphunga, kuncibilika kalula emanzini. Angancibiliki ngokujwayelekile ngezincibilikisi zemvelo.
I-Hydroxyethyl cellulose
Kububanzi bevelu ye-PH engu-2-12, ukuguqulwa kwe-viscosity kuncane, kodwa i-viscosity iyancipha ngale kwalolu bubanzi. Inezici zokuqina, ukumisa, ukubopha, i-emulsifying, ukuhlakazeka, ukugcina umswakama nokuvikela i-colloid. Izixazululo zamabanga ahlukene we-viscosity zingalungiswa. Ayizinzile ngaphansi kwezinga lokushisa elivamile nokucindezela, igwema umswakama, ukushisa kanye nezinga lokushisa eliphezulu, futhi inokuncibilika okuhle kakhulu kukasawoti kuma-dielectrics, futhi isisombululo sayo esinamanzi sivunyelwe ukuqukatha ukugxila okuphezulu kukasawoti futhi izinzile.
Izakhiwo ezibalulekile: Njengesisetshenziswa esingeyona i-ionic, i-hydroxyethyl cellulose inalezi zinto ezilandelayo ngaphezu kokujiya, ukumisa okwesikhashana, ukubopha, ukuntanta, ukwenza ifilimu, ukuhlakazeka, ukugcinwa kwamanzi kanye nokuhlinzeka ngama-colloid avikelayo:
1. I-HEC iyancibilika emanzini ashisayo noma abandayo, futhi ayidli ekushiseni okuphezulu noma ekubiliseni, okuyenza ibe nezici eziningi zokuncibilika kanye nezici ze-viscosity, kanye ne-gelation engashisi;
2. Ayiyona i-ionic futhi ingahlala kanye nohlu olubanzi lwama-polymers ancibilikayo emanzini, ama-surfactants nosawoti, futhi iyi-colloidal thickener enhle kakhulu equkethe izixazululo ze-electrolyte eziphezulu zokugxila;
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 i-colloid evikelayo inekhono eliqine kakhulu.
Indawo yokufaka isicelo
Isetshenziswa njenge-adhesive, surfactant, i-colloid protective agent, dispersant, emulsifier kanye ne-dispersion stabilizer. Inezinhlobonhlobo zezinhlelo zokusebenza zokumboza, iziyinki, imicu, ukudaya, ukwenza amaphepha, izimonyo, izibulala-zinambuzane, ukucubungula amaminerali, ukukhipha uwoyela kanye nemithi.
1. Ngokuvamile isetshenziswa njenge-ejenti yokuqina, i-ejenti evikelayo, i-adhesive, stabilizer kanye nesengezo sokulungiselela i-emulsion, ijeli, amafutha okugcoba, i-lotion, i-ejenti yokuhlanza iso, i-suppository kanye nethebhulethi, ebuye isetshenziswe njengejeli le-hydrophilic, izinto zamathambo, ukulungiswa kwamalungiselelo okukhululwa okuqhubekayo kwamathambo. , futhi ingasetshenziswa njengesiqinisi ekudleni.
2. Isetshenziswa njenge-ejenti yokulinganisa embonini yendwangu, i-bonding, ukuqina, i-emulsifying, i-stabilizing nezinye izinsiza emikhakheni ye-electronics kanye nemboni yokukhanya.
3. Isetshenziswa njengesinciphisi esijiya nesihluza oketshezini lokumba olusekelwe emanzini kanye noketshezi oluqedayo, futhi inomphumela osobala wokujiya oketshezini lokumba amanzi anosawoti. Ingasetshenziswa futhi njenge-ejenti yokulawula ukulahlekelwa okuwuketshezi kasimende womthombo wamafutha. Ingaxhunyaniswa ne-polyvalent metal ions ukwenza ama-gel.
4. Lo mkhiqizo usetshenziswa njenge-disperant ku-gel-based fracturing fluids, i-polystyrene ne-polyvinyl chloride ekukhiqizeni i-oyela fracturing. Ingasetshenziswa futhi njenge-emulsion thickener embonini kapende, i-resistor ebucayi yomswakama embonini ye-elekthronikhi, i-cement coagulation inhibitor kanye ne-ejenti yokugcina umswakama embonini yezokwakha. I-glazing kanye ne-toothpaste adhesives embonini ye-ceramic. Ibuye isetshenziswe kabanzi ekunyatheliseni nasekudayeni, izindwangu, ukwenza amaphepha, imithi, inhlanzeko, ukudla, ugwayi, izibulala-zinambuzane kanye nezinto ezicisha umlilo.
5. Isetshenziswa njenge-surfactant, i-colloid protective agent, i-emulsion stabilizer ye-vinyl chloride, i-vinyl acetate namanye ama-emulsions, kanye ne-latex tackifier, i-dispersant, i-dispersion stabilizer, njll. izibulala-zinambuzane, njll. Iphinde ibe nokusetshenziswa okuningi embonini yokukhipha uwoyela nemishini.
6. I-Hydroxyethyl cellulose inomsebenzi ongaphezulu, ukuqina, ukumisa okwesikhashana, ukubopha, ukufaka i-emulsifying, ukwenza ifilimu, ukusabalalisa, ukugcinwa kwamanzi kanye nokuhlinzeka ngokuvikeleka emalungiselelweni aqinile emithi kanye namanzi.
7. Isetshenziswa njenge-disperant ekuxhashazweni kwe-petroleum water-based gel fracturing fluid, i-polyvinyl chloride ne-polystyrene. Ingasetshenziswa futhi njenge-emulsion thickener embonini kapende, i-cement coagulation inhibitor kanye ne-ejenti yokugcina umswakama embonini yezokwakha, i-glazing ejenti kanye ne-toothpaste adhesive embonini ye-ceramic. Ibuye isetshenziswe kabanzi ekunyatheliseni nasekudayeni, izindwangu, ukwenza amaphepha, imithi, inhlanzeko, ukudla, ugwayi nezibulala-zinambuzane kanye neminye imikhakha yezimboni.
Ukugoqa ukusebenza komkhiqizo
1. I-HEC iyancibilika emanzini ashisayo noma abandayo, futhi ayidli ngokushisa okuphezulu noma ukubila, ukuze ibe nezici eziningi zokuncibilika kanye nezici ze-viscosity, kanye ne-gelation engashisi;
2. I-non-ionic ngokwayo ingahlala kanye nohlu olubanzi lwama-polymers ancibilikayo emanzini, ama-surfactants nama-salts, futhi iyi-colloidal thickener enhle kakhulu equkethe izixazululo ze-dielectric eziphezulu zokugxila;
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 i-colloid evikelayo inekhono eliqine kakhulu.
Indlela yokugoqa
Joyina ngokuqondile ekukhiqizeni
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.
Indima ye-hydroxyethyl cellulose ekwakhiweni kwamakhemikhali ezimonyo? Izingxube ze-polymer ezincibilika emanzini ezisetshenziswa kuzimonyo zihlukaniswe ikakhulukazi izigaba ezimbili: ezemvelo nezokwenziwa.
Izinhlanganisela ze-polymer zemvelo ezincibilika emanzini zihlanganisa: isitashi, inhlaka yezitshalo, i-gelatin yezilwane, njll., kodwa izinga alizinzile, lithinteka kalula isimo sezulu, indawo ezungezile, isivuno esilinganiselwe, futhi siwohloka kalula amagciwane kanye nesikhunta.
Ama-synthetic water-soluble polymer compounds ahlanganisa i-polyvinyl alcohol, i-polyvinylpyrrolidone, njll., enezindawo ezizinzile, ukucasuka kwesikhumba esincane kanye nenani eliphansi, ngakho-ke athathe indawo ye-polymer encibilikayo emanzini emvelo futhi abe umthombo oyinhloko wezinto zokusetshenziswa kwe-colloid.
Iphinde ihlukaniswe ibe yizingxube ze-semi-synthetic kanye ne-synthetic ye-polymer encibilika emanzini.
Izingxube ze-polymer ezincibilikayo ezinga-semi-synthetic zivame ukusetshenziswa: i-methyl cellulose, i-ethyl cellulose, i-sodium carboxymethyl cellulose, i-hydroxyethyl cellulose, ne-guar gum kanye nokuphuma kwayo.
Izinhlanganisela ze-polymer ezincibilika emanzini zokwenziwa zivame ukusetshenziswa: i-polyvinyl alcohol, i-polyvinylpyrrolidone, i-acrylic acid polymer, njll.
Lezi zisetshenziselwa izimonyo njengama-adhesives, thickeners, amafilimu, kanye nama-emulsion stabilizers.
Isikhathi sokuthumela: Nov-11-2022