Ukusebenza nokusetshenziswa kwe-hydroxyethyl cellulose

Izici ze-Hydroxyethyl Cellulose

Izakhiwo eziyinhloko ze-hydroxyethyl cellulose ukuthi inyibilika kokubili emanzini abandayo namanzi ashisayo, futhi ayinazo izakhiwo zejeli. Inezinhlobonhlobo eziningi ze-substitution degree, i-solubility kanye ne-viscosity, ukuzinza okuhle kokushisa (ngaphansi kuka-140 ° C), futhi ayikhiqizi i-gelatin ngaphansi kwezimo ze-acidic. imvula. Isixazululo se-Hydroxyethyl cellulose singakha ifilimu esobala, futhi sinezici zohlobo olungezona i-ionic olungasebenzisani nama-ion futhi olunokuhambisana okuhle.

① Izinga lokushisa eliphezulu nokuncibilika kwamanzi: Uma kuqhathaniswa ne-methyl cellulose (MC) encibilika emanzini abandayo kuphela, i-hydroxyethyl cellulose ingancibilika emanzini ashisayo noma emanzini abandayo, futhi ayidli ezingeni lokushisa eliphezulu noma elibilayo, iyenze ibe nobubanzi obubanzi izici ze-solubility kanye ne-viscosity, kanye nezakhiwo ezingezona ze-thermogelling.

②Ukubekezelela usawoti: Njengoba ungeyona i-ionic, ungahlala nohlu olubanzi lwama-polymers ancibilika emanzini, izinto ezisetshenziswayo, nosawoti. Ngakho-ke, uma iqhathaniswa ne-ionic carboxymethyl cellulose (CMC), i-hydroxyethyl cellulose inokumelana nosawoti okungcono.

③Ukugcinwa kwamanzi, ileveli, kanye nezakhiwo zokwenza ifilimu: amandla ayo okugcina amanzi aphakeme ngokuphindwe kabili kunalawo e-methyl cellulose, futhi inokulawula okuhle kakhulu kokugeleza, izici ezinhle kakhulu zokwenza ifilimu, ukulawulwa kokulahlekelwa uketshezi, ukungqubuzana, nocansi oluvikelayo lwe-colloid.

Ukusetshenziswa kwe-hydroxyethyl cellulose

I-Hydroxyethyl cellulose ingumkhiqizo we-cellulose we-cellulose we-non-ionic oncibilika emanzini, osetshenziswa kabanzi ekwakhiweni kwezakhiwo, i-petroleum, i-polymerization, imithi, ukusetshenziswa kwansuku zonke, iphepha noyinki, indwangu, i-ceramics, ukwakhiwa, ezolimo kanye nezinye izimboni. Inemisebenzi yokuqina, ukubopha, i-emulsifying, ukuhlakazeka nokuzinzisa, futhi ingagcina amanzi, yakha ifilimu futhi inikeze umphumela we-colloid ovikelayo. Incibilika kalula emanzini abandayo nasemanzini ashisayo, futhi inganikeza isisombululo ngezinhlobonhlobo ze-viscosity. Kuyinto intuthuko eminyakeni yamuva. Enye ye-cellulose ethers esheshayo.

1. Upende we-latex

I-Hydroxyethyl cellulose iyi-thickener esetshenziswa kakhulu kumapende we-latex. Ngaphezu kopende we-latex oqina, ungaphinda uhlanganise, uhlakaze, uzinze futhi ugcine amanzi. Ibonakala ngomphumela wokuqina ophawulekayo, ukuthuthukiswa kombala omuhle, ukwakheka kwefilimu nokuzinza kwesitoreji. I-Hydroxyethyl cellulose iwukuphuma kwe-non-ionic cellulose engasetshenziswa ku-pH ebanzi. Inokuhambisana okuhle nezinye izinto ezisengxenyeni (njengemibala, izithasiselo, izigcwalisi nosawoti). Izingubo ezijiywe nge-hydroxyethyl cellulose zine-rheology enhle ngamanani ahlukahlukene wokugunda futhi ziyi-pseudoplastic. Izindlela zokwakha ezifana ne-brush coating, i-roller coating kanye ne-spray coating zingamukelwa. Ukwakhiwa okuhle, akulula ukuconsa, ukucwila nokuchaphaza, kanye nempahla esezingeni elifanele.

2. I-Polymerization

I-Hydroxyethyl cellulose inemisebenzi yokuhlakaza, yokufaka emulsifying, ukumisa okwesikhashana kanye nokuzinzisa ezingxenyeni ze-polymerization noma i-copolymerization yama-synthetic resins, futhi ingasetshenziswa njenge-colloid evikelayo. Ibonakala ngekhono eliqinile lokuhlakazeka, "ifilimu" yezinhlayiyana ezincane, usayizi wezinhlayiyana ezincane, ukwakheka kwezinhlayiyana ezifanayo, uhlobo oluxekethile, uketshezi oluhle, ukubonakala komkhiqizo ophezulu kanye nokucubungula kalula. Ngenxa yokuthi i-hydroxyethyl cellulose ingancibilika emanzini abandayo nasemanzini ashisayo, futhi ayinayo indawo yokushisa ye-gelation, ifaneleka kakhulu ukusabela okuhlukahlukene kwe-polymerization.

Izakhiwo ezibalulekile zomzimba zokuphenya ikhwalithi ye-dispersant ukungezwani okungaphezulu (noma okuphakathi kobuso), amandla okuhlangana ubuso nokushisa kwe-gelation yesisombululo sayo esinamanzi. Lezi zakhiwo ze-hydroxyethyl cellulose zilungele ukwenziwa kwe-polymerization noma i-copolymerization yama-synthetic resins. I-Hydroxyethyl cellulose inokuhambisana okuhle namanye ama-cellulose ethers ancibilika emanzini kanye ne-PVA. Uhlelo oluyinhlanganisela olwakhiwe kanjalo lungathola umphumela ophelele wokufunda komunye nomunye. Imikhiqizo ye-resin eyenziwe ngemuva kokuhlanganiswa ayinayo kuphela ikhwalithi enhle, kodwa futhi inciphisa ukulahlekelwa kwezinto ezibonakalayo.

3. Ukumba uwoyela

Ekubhobololweni kukawoyela nasekukhiqizeni, i-high-viscosity hydroxyethyl cellulose isetshenziswa kakhulu njengesithako sokuqeda uketshezi kanye noketshezi lokuqeda. I-viscosity ephansi ye-hydroxyethyl cellulose isetshenziswa njengesinciphisi sokulahlekelwa uketshezi. Emadakeni ahlukahlukene adingekayo ukuze kubhojwe, ukuphothulwa kahle, ukusebenza kahle kukasimende nokuqhekeka, i-hydroxyethyl cellulose isetshenziswa njenge-thickener ukuze kutholakale uketshezi oluhle nokuzinza kodaka. Ngesikhathi sokumba, ingathuthukisa ikhono lokuthwala isihlabathi sodaka futhi yandise impilo yesevisi ye-drill bit. Oketshezini oluphansi lokuqedela isigaba esiqinile kanye noketshezi lukasimende, ukulahlekelwa kwamanzi okuhle kakhulu okunciphisa ukusebenza kwe-hydroxyethyl cellulose kungavimbela inani elikhulu lamanzi ukuthi lingangeni ungqimba lwamafutha odakeni, futhi lingathuthukisa amandla okukhiqiza ungqimba lwamafutha.

4. Amakhemikhali nsuku zonke

I-Hydroxyethyl cellulose iyi-ejenti ephumelelayo yokwenza ifilimu, i-binder, i-thickener, i-stabilizer ne-disperant kuma-shampoos, izifutho zezinwele, ama-neutraizer, ama-conditioner wezinwele nezimonyo; ku-washing powder Kuyi-ejenti yokubuyisela kabusha inhlabathi. I-Hydroxyethyl cellulose incibilika ngokushesha ekushiseni okuphezulu, okungasheshisa inqubo yokukhiqiza futhi kuthuthukise ukusebenza kahle kokukhiqiza. Isici esisobala se-detergent equkethe i-hydroxyethyl cellulose ukuthi ingathuthukisa ukushelela nokucwenga kwendwangu.

5. Ukwakha

I-Hydroxyethyl cellulose ingasetshenziswa emikhiqizweni yokwakha efana nezingxube zikakhonkolo, udaka olusha, usimende we-gypsum noma amanye usimende, njll., ukugcina amanzi ngesikhathi sokwakha ngaphambi kokuba amiswe futhi aqine. Ngaphezu kokuthuthukisa ukugcinwa kwamanzi kwemikhiqizo yokwakha, i-hydroxyethyl cellulose iphinde ikhulise ukulungiswa kanye nesikhathi esivulekile se-plaster noma i-mastic. Inganciphisa ukucwiliswa kwesikhumba, ukushelela kanye nokuwohloka. Ngakho-ke, ukusebenza kokwakhiwa kungathuthukiswa, ukusebenza kahle komsebenzi kungandiswa, futhi kugcinwe isikhathi. Ngesikhathi esifanayo, izinga lokunwetshwa kwe-stucco lingathuthukiswa, ngaleyo ndlela kugcinwe izinto zokusetshenziswa.

6. Ezolimo

I-Hydroxyethyl cellulose isetshenziswa ekwakhiweni kwama-emulsions e-pesticide and suspensions, njenge-thickener ye-spray emulsions noma ukumiswa. Inganciphisa ukukhukhuleka kwamakhemikhali futhi ikwenze inamathele ngokuqinile emaqabunga ezitshalo, ngaleyo ndlela yandise umphumela wokufafaza kwe-foliar. I-Hydroxyethyl cellulose ingasetshenziswa futhi njenge-ejenti eyenza ifilimu kuma-ejenti okugcoba imbewu; njenge-binder kanye ne-ejenti eyenza ifilimu ekugayweni kabusha kwamaqabunga kagwayi.

7. Ukwenza iphepha noyinki wokuphrinta

I-Hydroxyethyl cellulose ingasetshenziswa njenge-ejenti yokulinganisa yephepha nebhodi futhi njenge-ejenti ejiyayo nelengayo kumayinki asekelwe emanzini. Enqubweni yokwenza iphepha, izakhiwo eziphakeme ze-hydroxyethyl cellulose zihlanganisa ukuhambisana nezinsini eziningi, ama-resin kanye nosawoti we-inorganic, i-foam ephansi, ukusetshenziswa okuphansi kwe-oxygen kanye nekhono lokwenza ifilimu elibushelelezi. Ifilimu ine-permeability ephansi kanye ne-gloss ephezulu, enganciphisa nezindleko. Iphepha elilingana ne-hydroxyethyl cellulose, elingasetshenziselwa ukuphrinta izithombe ezisezingeni eliphezulu. Ekwenziweni kukayinki osekelwe emanzini, uyinki osuselwe emanzini ogqinsiswe nge-hydroxyethyl cellulose yoma ngokushesha, unombala omuhle wokusabalalisa, futhi ingabangeli ukunamathela.

8. Indwangu

Ingasetshenziswa njenge-binder kanye ne-ejenti yokulinganisa ekuphrinteni kwendwangu kanye nokunamathisela okudayayo nopende be-latex; njenge-thickener yokulinganisa izinto ezingemuva kokhaphethi. Ku-glass fiber, isetshenziswa njenge-ejenti yokwakha kanye ne-binder; ekunamekelweni kwesikhumba, ingasetshenziswa njengesilungisi nesibophezelo. Nikeza ububanzi be-viscosity ebanzi yalezi zingubo zokunamathisela noma izinamathiselo, yenza ukunamathela kufane futhi kusheshe, futhi uthuthukise ukucaca kokuphrinta nokudaya.

9. I-Ceramics

Ingasetshenziselwa ukwenza izibophezelo zamandla aphezulu ezitsheni zobumba.

10. Umuthi wokuxubha

Ingasetshenziswa njenge-thickener ekwenzeni umuthi wokuxubha.