I-Hydroxyethyl Cellulose

I-Hydroxyethyl cellulose (HEC) i-non-ionic e-soluble cellulose etherokuphuma kokunyeokungase kusebenze namanye ama-polymer amaningi ancibilika emanzini, ama-surfactants, nosawoti. I-HEC inezici zokuqina, ukumiswa, ukunamathela, i-emulsification, ukwakheka kwefilimu ezinzile, ukusabalalisa, ukugcinwa kwamanzi, ukuvikelwa kwe-anti-microbial nokuvikelwa kwe-colloidal. Ingasetshenziswa kabanzi kuma-coatings, izimonyo, ukumba uwoyela nezinye izimboni.

Izici eziyinhloko zeHi-hydroxyethyl cellulose(HEC)ukuthi ingancibilika emanzini abandayo nasemanzini ashisayo, futhi ayinazo izici zejeli. Inohlu olubanzi lokushintshwa, ukunyibilika kanye ne-viscosity. Inokuqina okuhle kokushisa (ngaphansi kuka-140 ° C) futhi ayikhiqizi ngaphansi kwezimo ezine-asidi. imvula. Isixazululo se-hydroxyethyl cellulose singakha ifilimu esobala, enezici ezingezona i-ionic ezingahlangani nama-ion futhi ezinokuhambisana okuhle.

Ukucaciswa Kwekhemikhali

Imikhiqizo Amabanga 

Cukuhlukunyezwa kwe-HEC

1.Ukuqina

I-HEC iyi-thickener efanelekile yezingubo zokugqoka nezimonyo. Ekusetshenzisweni okungokoqobo, inhlanganisela yokujiya nokumiswa, ukuphepha, ukuhlakazeka, nokugcinwa kwamanzi kuzoveza imiphumela emihle kakhulu.

2.I-Pseudoplasticity

I-Pseudoplasticity ibhekisela endaweni lapho i-viscosity yesisombululo iyancipha ngokunyuka kwesivinini. Upende we-latex oqukethe i-HEC kulula ukuwusebenzisa ngamabhulashi noma ama-roller futhi ungandisa ukushelela kwendawo, okungase futhi kwandise ukusebenza kahle komsebenzi; ama-shampoos aqukethe i-HEC anoketshezi oluhle futhi ane-viscous, kulula ukuwahlanza, futhi kulula ukuwahlakaza.

3.Ukubekezelela usawoti

I-HEC izinzile kakhulu ezixazululweni zikasawoti ogxilile kakhulu futhi ngeke ibole ibe yi-ionic state. Kufakwe ku-electroplating, ingaphezulu lezingxenye ezipuletiwe lingaphelela futhi likhanye kakhudlwana. Okuphawuleka kakhulu ukuthi isenayo i-viscosity enhle uma isetshenziswa kupende we-latex oqukethe i-borate, i-silicate ne-carbonate.

4.Ukwakhiwa kwefilimu

Izakhiwo zokwakha ifilimu ze-HEC zingasetshenziswa ezimbonini eziningi. Emisebenzini yokwenza iphepha, ukugqoka nge-ejenti ye-glazing equkethe i-HEC kungavimbela ukungena kwamafutha, futhi kungasetshenziswa ukulungiselela izixazululo kwezinye izici zokukhiqiza iphepha; enqubweni yokuphotha, i-HEC ingakhuphula ukunwebeka kwemicu futhi inciphise ukulimala komshini kuwo. Enqubweni yokulinganisa, yokudaya nokuqeda indwangu, i-HEC ingasebenza njengefilimu yokuvikela yesikhashana. Lapho isivikelo sawo singadingeki, singagezwa ku-fiber ngamanzi.

5.Ukugcinwa kwamanzi

I-HEC isiza ukugcina umswakama wesistimu usesimweni esifanele. Ngoba inani elincane le-HEC esixazululweni samanzi lingathola umphumela omuhle wokugcina amanzi, ukuze uhlelo lunciphise isidingo samanzi ngesikhathi sokuxubha. Ngaphandle kokugcinwa kwamanzi nokunamathela, udaka lukasimende luzonciphisa amandla nokubumbana kwalo, futhi ubumba luzophinde lunciphise ipulasitiki yalo ngaphansi kwengcindezi ethile.

Izinhlelo zokusebenza

1.Upende we-latex

I-Hydroxyethyl cellulose iyi-thickener esetshenziswa kakhulu ezimbotsheni ze-latex. Ngaphezu kokuqina kwezingubo ze-latex, ingaphinda ifake, ihlakaze, iqinise futhi igcine amanzi. Ibonakala ngomphumela obalulekile wokuqina, ukuthuthukiswa kombala omuhle, izakhiwo zefilimu kanye nokuzinza kwesitoreji. IHydroxyethyl cellulose iwukuphuma kwe-non-ionic cellulose futhi ingasetshenziswa ebangeni elibanzi le-pH. Inokuhambisana okuhle nezinye izinto ezisengxenyeni (njengemibala, izithasiselo, izigcwalisi nosawoti). Izingubo ezijiywe nge-hydroxyethyl cellulose zine-rheology enhle kanye ne-pseudoplasticity ngamanani ahlukahlukene okugunda. Izindlela zokwakha ezifana nokuxubha, i-roller coating kanye nokufafaza zingamukelwa. Ukwakhiwa kuhle, akulula ukuconsa, ukucwila nokuchaphaza, kanye nempahla yokulinganisa nayo inhle.

2.I-Polymerization

I-Hydroxyethyl cellulose inemisebenzi yokuhlakaza, yokufaka emulsifying, ukumisa okwesikhashana kanye nokuzinzisa ku-polymerization noma ingxenye ye-copolymerization ye-synthetic resin, futhi ingasetshenziswa njenge-colloid evikelayo. Ibonakala ngekhono eliqinile lokuhlakazeka, umkhiqizo owumphumela unezinhlayiyana ezincane “zefilimu”, usayizi wezinhlayiyana ezinhle, ukuma kwezinhlayiyana ezifanayo, ukuma okuxekethile, uketshezi oluhle, ukubonakala komkhiqizo okuphezulu, nokucubungula kalula. Njengoba i-hydroxyethyl cellulose ingancibilika emanzini abandayo nasemanzini ashisayo futhi ingenayo indawo yokushisa ye-gelation, ifaneleka kakhulu ukusabela okuhlukahlukene kwe-polymerization.

Izakhiwo ezibalulekile zomzimba ze-disperant yizingxabano ezingaphezulu (noma ezihlangene), amandla okuhlangana 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. Isistimu eyinhlanganisela eyakhiwe yilokhu ingathola umphumela ophelele wokuphelelisa ubuthakathaka bomunye nomunye. Umkhiqizo we-resin owenziwe ngemuva kokuhlanganiswa awunayo kuphela ikhwalithi enhle, kodwa futhi unciphise ukulahlekelwa kwezinto ezibonakalayo.

3.Ukumba uwoyela

Ekubhobololweni kukawoyela nasekukhiqizeni, i-high-viscosity hydroxyethyl cellulose isetshenziswa kakhulu njenge-viscosifier yokuqedela uketshezi kanye noketshezi lokuqeda. I-low-viscosity hydroxyethyl cellulose isetshenziswa njenge-ejenti yokulahlekelwa uketshezi. Phakathi kwamadaka ahlukahlukene adingekayo ukuze kubhobozwe, kuqedwe, kufakwe usimende kanye nokusebenza kwe-fracturing, i-hydroxyethyl cellulose isetshenziswa njenge-thickener ukuthola uketshezi oluhle nokuzinza kodaka. Ngesikhathi sokumba, umthamo wokuthwala udaka ungathuthukiswa, futhi impilo yesevisi ye-drill bit inganwetshwa. Emanzini okugcwalisa aqinile aphansi kanye noketshezi lukasimende, ukusebenza okuhle kakhulu kokunciphisa ukulahlekelwa uketshezi lwe-hydroxyethyl cellulose kungavimbela inani elikhulu lamanzi ukuthi lingangeni ungqimba lwamafutha odakeni futhi kuthuthukise amandla okukhiqiza ungqimba lwamafutha.

4.Imboni yamakhemikhali yansuku zonke

I-Hydroxyethyl cellulose iyifilimu ephumelelayo yangaphambili, i-binder, thickener, stabilizer kanye ne-dispersant kuma-shampoos, izifutho zezinwele, ama-neutralizers, ama-conditioner wezinwele nezimonyo; kuzimpushana zokuhlanza Okumaphakathi i-ejenti efaka kabusha ukungcola. I-Hydroxyethyl cellulose incibilika ngokushesha emazingeni okushisa aphezulu, angasheshisa inqubo yokukhiqiza futhi athuthukise ukusebenza kahle kokukhiqiza. Isici esisobala sezinto zokuhlanza eziqukethe i-hydroxyethyl cellulose ukuthi zingathuthukisa ukushelela kanye ne-mercerization yezindwangu.

5 Isakhiwo

I-Hydroxyethyl cellulose ingasetshenziswa emikhiqizweni yokwakha efana nezingxube zikakhonkolo, udaka olusanda kuxutshwa, ukhonkolo lwe-gypsum noma ezinye izinsika, njll., ukugcina amanzi ngesikhathi sokwakha ngaphambi kokuthi kusethwe futhi kuqine. Ngaphezu kokuthuthukisa ukugcinwa kwamanzi kwemikhiqizo yokwakha, i-hydroxyethyl cellulose ingabuye yandise ukulungiswa kanye nesikhathi esivulekile se-plaster noma usimende. Kunganciphisa ukucwila, ukushelela kanye nokuwohloka. Lokhu kungathuthukisa ukusebenza komsebenzi wokwakha, kwandise ukusebenza kahle komsebenzi, konga isikhathi, futhi ngesikhathi esifanayo kwandise izinga lokukhushulwa komthamo wodaka, ngaleyo ndlela kulondoloze izinto zokusetshenziswa.

6 Ezolimo

I-Hydroxyethyl cellulose isetshenziswa emulsion yesibulala-zinambuzane kanye nokwakhiwa kokumiswa, njenge-thickener ye-spray emulsions noma ukumiswa. Kunganciphisa ukukhukhuleka komuthi futhi kukwenze unamathele ngokuqinile endaweni yamaqabunga esitshalo, ngaleyo ndlela kwandise umphumela wokusetshenziswa wokufafaza kwe-foliar. I-Hydroxyethyl cellulose ingasetshenziswa futhi njenge-ejenti eyenza ifilimu yokumboza imbewu; njenge-binder kanye ne-ejenti yokwakha ifilimu yokugaywa kabusha kwamaqabunga kagwayi.

7 Iphepha noyinki

I-Hydroxyethyl cellulose ingasetshenziswa njenge-ejenti yokulinganisa ephepheni nasekhadini, kanye ne-ejenti ejiyayo kanye nokumisa okwesikhashana kuma-inki 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 inokungena okuphansi kwendawo kanye nokucwebezela okuqinile, futhi inganciphisa nezindleko. Iphepha elinamathiselwe nge-hydroxyethyl cellulose lingasetshenziswa ukuphrinta izithombe ezisezingeni eliphezulu. Ekwenziweni kukayinki osuselwe emanzini, uyinki osuselwe emanzini ogqinsiswe nge-hydroxyethyl cellulose yoma ngokushesha, unombala omuhle we-diffusability, futhi awubangeli ukunamathela.

8 indwangu

Ingasetshenziswa njenge-binder kanye ne-ejenti yokulinganisa ekuphrinteni kwendwangu kanye ne-ejenti yokulinganisa yokudaya kanye ne-latex coating; i-ejenti yokuqina yokulinganisa impahla ngemuva kukhaphethi. Ku-fibre yengilazi, ingasetshenziswa njenge-ejenti yokwakha kanye ne-adhesive; ku-slurry yesikhumba, ingasetshenziswa njenge-modifier kanye ne-adhesive. Nikeza ububanzi obubanzi be-viscosity yalezi zimbozo noma izinamathiselo, yenza ukunamathela kufane futhi kuhambisane ngokushesha, futhi kungathuthukisa ukucaca kokuphrinta nokudaya.

9 I-Ceramics

Ingasetshenziselwa ukwenza izinamatheliso eziqinile ze-ceramics.

10.umuthi wokuxubha

Ingasetshenziswa njenge-thickener ekukhiqizeni umuthi wokuxubha.

Ukupakishwa: 

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