I-Hydroxyethyl Cellulose

I-Hydroxyethyl cellulose (HEC) iyi-ether ye-cellulose enyibilikayo engeyona i-ionicizinto ezisuselwe kuzoezingaba khona nezinye izinto eziningi ezincibilika emanzini, ama-surfactants, kanye nosawoti. I-HEC inezakhiwo zokujiya, ukumiswa, ukunamathela, i-emulsification, ukwakheka kwefilimu okuzinzile, ukuhlakazeka, ukugcinwa kwamanzi, ukuvikelwa okulwa namagciwane kanye nokuvikelwa kwe-colloidal. Ingasetshenziswa kabanzi ekumbozweni, izimonyo, ukubhoboza uwoyela kanye neminye imboni.

Izakhiwo eziyinhloko zeHi-ydroxyethyl cellulose(I-HEC)ukuthi ingancibilikiswa emanzini abandayo nasemanzini ashisayo, futhi ayinazo izici zejeli. Inezinhlobo eziningi zokushintsha, ukuncibilika kanye ne-viscosity. Inesimo esihle sokushisa (ngaphansi kuka-140°C) futhi ayikhiqizi imvula ngaphansi kwezimo ze-acidic. Isixazululo se-hydroxyethyl cellulose singakha ifilimu ecacile, enezici ezingezona i-ionic ezingahlangani nama-ion futhi ezinokuhambisana okuhle.

Ukucaciswa Kwamakhemikhali

Imikhiqizo Amabanga 

Cizici ze-HEC

1.Ukuqina

I-HEC iyisithako esifanelekile sokumboza kanye nezimonyo. Ezisetshenzisweni ezingokoqobo, inhlanganisela yokujiya kanye nokumiswa, ukuphepha, ukuhlakazeka, kanye nokugcinwa kwamanzi kuzokhiqiza imiphumela emihle kakhulu.

2.Ukungaguquguquki kwe-pseudoplasticity

I-Pseudoplasticity ibhekisela kusici sokuthi i-viscosity yesisombululo iyancipha ngokwanda kwesivinini. Upende we-latex oqukethe i-HEC kulula ukuwusebenzisa ngamabhulashi noma ama-roller futhi ungandisa ukushelela kwendawo, okungakhulisa nokusebenza kahle komsebenzi; ama-shampoo aqukethe i-HEC anokugeleza okuhle futhi aqinile kakhulu, kulula ukuwaxuba, futhi kulula ukuwahlakaza.

3.Ukubekezelela usawoti

I-HEC izinzile kakhulu ezixazululweni zikasawoti ezigcwele kakhulu futhi ngeke ibole ibe yi-ionic. Uma isetshenziswa ekufakeni i-electroplating, ubuso bezingxenye ezifakwe ipulasitiki bungaphelela futhi bukhanye kakhudlwana. Okuphawuleka kakhulu ukuthi isene-viscosity enhle uma isetshenziswa kupende we-latex oqukethe i-borate, i-silicate kanye ne-carbonate.

4.Ukwakhiwa kwamafilimu

Izakhiwo zokwakha ifilimu ze-HEC zingasetshenziswa ezimbonini eziningi. Emisebenzini yokwenza iphepha, ukumboza nge-ejenti yokugqwala equkethe i-HEC kungavimbela ukungena kwamafutha, futhi kungasetshenziswa ukulungiselela izixazululo zezinye izici zokukhiqiza iphepha; enkambisweni yokuphotha, i-HEC ingandisa ukuqina kwemicu futhi inciphise umonakalo womshini kuyo. Enkambisweni yosayizi, ukudaya kanye nokuqeda indwangu, i-HEC ingasebenza njengefilimu yokuvikela yesikhashana. Uma ukuvikelwa kwayo kungadingeki, ingagezwa ku-fiber ngamanzi.

5.Ukugcinwa kwamanzi

I-HEC isiza ukugcina umswakama wohlelo usesimweni esifanele. Ngoba inani elincane le-HEC esixazululweni samanzi lingathola umphumela omuhle wokugcina amanzi, ukuze uhlelo lunciphise isidingo samanzi ngesikhathi sokuhlanganiswa. Ngaphandle kokugcinwa kwamanzi nokunamathela, udaka lukasimende luzonciphisa amandla alo kanye nokuhlangana kwalo, kanti ubumba luzonciphisa nokuqina kwalo ngaphansi kwengcindezi ethile.

Izicelo

1.Upende we-latex

I-Hydroxyethyl cellulose iyisithako esivame ukusetshenziswa kakhulu ekumbozweni kwe-latex. Ngaphezu kokuqinisa i-latex coatings, ingaphinde ihlanganise, ihlakaze, izinze futhi igcine amanzi. Ibonakala ngomphumela obalulekile wokujiya, ukuthuthukiswa kombala okuhle, izakhiwo zokwakha ifilimu kanye nokuqina kwesitoreji. I-Hydroxyethyl cellulose iyi-non-ionic cellulose derivative futhi ingasetshenziswa ebangeni elibanzi le-pH. Ihambisana kahle nezinye izinto ezikulesi sakhi (njengemibala, izithasiselo, izigcwalisi kanye nosawoti). Izingubo ezijiyile nge-hydroxyethyl cellulose zine-rheology enhle kanye ne-pseudoplasticity ngamazinga ahlukahlukene okucheba. Izindlela zokwakha ezifana nokuxubha, ukugoqa okugoqekayo kanye nokufutha zingasetshenziswa. Ukwakhiwa kuhle, akulula ukuconsa, ukugoba kanye nokuchaphaza, futhi isici sokulinganisa naso sihle.

2.Ukwenziwa kwe-polymerization

I-Hydroxyethyl cellulose inemisebenzi yokuhlakaza, ukuhlanganisa, ukuxhuma kanye nokuzinzisa engxenyeni ye-polymerization noma ye-copolymerization ye-resin yokwenziwa, futhi ingasetshenziswa njenge-colloid evikelayo. Ibonakala ngekhono eliqinile lokuhlakaza, umkhiqizo ophumayo une-"film" yezinhlayiya ezincane, usayizi wezinhlayiya ezincane, ukuma kwezinhlayiya ezifanayo, ukuma okuxekethile, ukugeleza okuhle, ukubonakala okuphezulu komkhiqizo, kanye nokucutshungulwa okulula. Njengoba i-hydroxyethyl cellulose ingancibilikiswa emanzini abandayo nasemanzini ashisayo futhi ingenayo izinga lokushisa le-gelation, ifaneleka kakhulu ekuphenduleni okuhlukahlukene kwe-polymerization.

Izakhiwo ezibalulekile zomzimba ze-dispersant ukucindezelwa kobuso (noma i-interfacial), amandla e-interfacial kanye nokushisa kwe-gelation kwesisombululo sayo samanzi. Lezi zakhiwo ze-hydroxyethyl cellulose zifanelekela i-polymerization noma i-copolymerization yama-resin okwenziwa.

I-Hydroxyethyl cellulose ihambisana kahle namanye ama-ether e-cellulose ancibilika emanzini kanye ne-PVA. Uhlelo oluhlanganisiwe olwakhiwe yilokhu lungathola umphumela ophelele wokuhambisana nobuthakathaka bomunye nomunye. Umkhiqizo we-resin owenziwe ngemuva kokuhlanganiswa awunayo nje ikhwalithi enhle, kodwa futhi uncishisiwe ukulahleka kwezinto.

3.Ukumba uwoyela

Ekubholeni nasekukhiqizeni uwoyela, i-hydroxyethyl cellulose ene-viscosity ephezulu isetshenziswa kakhulu njenge-viscosifier yoketshezi lokuqedela kanye noketshezi lokuqedela. I-hydroxyethyl cellulose ene-viscosity ephansi isetshenziswa njenge-ejenti yokulahlekelwa uketshezi. Phakathi kodaka oluhlukahlukene oludingekayo ekusebenzeni kokubhoboza, ukuqedela, ukufaka usimende kanye nokuqhekeka, i-hydroxyethyl cellulose isetshenziswa njengesithambisi ukuze kutholakale uketshezi oluhle kanye nokuqina kodaka. Ngesikhathi sokubhoboza, umthamo wokuthwala udaka ungathuthukiswa, futhi impilo yenkonzo ye-drill bit ingandiswa. Kuketshezi lokuqedela oluqinile oluphansi kanye noketshezi lokufaka usimende, ukusebenza okuhle kakhulu kokunciphisa ukulahleka koketshezi kwe-hydroxyethyl cellulose kungavimbela inani elikhulu lamanzi ukuthi lingene ongqimbeni lwamafutha oluvela odakeni futhi kuthuthukise umthamo wokukhiqiza wengqimba yamafutha.

4.Imboni yamakhemikhali yansuku zonke

I-Hydroxyethyl cellulose iyi-film former esebenzayo, i-binder, i-thickener, i-stabilizer kanye ne-dispersant kuma-shampoo, ama-hair spray, ama-neutralizer, ama-hair conditioner kanye nezimonyo; kuma-detergent powders i-Medium iyi-ejenti yokubuyisela ukungcola endaweni eshisayo. I-Hydroxyethyl cellulose iyancibilika ngokushesha emazingeni okushisa aphezulu, okungasheshisa inqubo yokukhiqiza futhi kuthuthukise ukusebenza kahle kokukhiqiza. Isici esisobala sama-detergents aqukethe i-hydroxyethyl cellulose ukuthi angathuthukisa ukushelela kanye nokuhlanganiswa kwezindwangu.

5 Isakhiwo

I-Hydroxyethyl cellulose ingasetshenziswa emikhiqizweni yokwakha efana nezingxube zekhonkrithi, udaka olusanda kuhlanganiswa, i-gypsum plaster noma ezinye izimbotshana, njll., ukugcina amanzi ngesikhathi senqubo yokwakha ngaphambi kokuba ziqine futhi ziqine. Ngaphezu kokuthuthukisa ukugcinwa kwamanzi kwemikhiqizo yokwakha, i-hydroxyethyl cellulose ingandisa nokulungiswa nesikhathi sokuvula kwe-plaster noma usimende. Kunganciphisa ukususwa kwesikhumba, ukushelela kanye nokuwa. Lokhu kungathuthukisa ukusebenza kokwakha, kwandise ukusebenza kahle komsebenzi, konge isikhathi, futhi ngesikhathi esifanayo kwandise izinga lokukhulisa umthamo wodaka, ngaleyo ndlela konge izinto zokusetshenziswa.

6 Ezolimo

I-Hydroxyethyl cellulose isetshenziswa ekubunjweni kwezibulala-zinambuzane kanye nokwakheka kokumiswa, njengesithako sokujiya kwama-emulsion okufutha noma ukumiswa. Inganciphisa ukukhukhuleka komuthi futhi yenze unamathele ngokuqinile ebusweni beqabunga lesitshalo, ngaleyo ndlela yandise umphumela wokusetshenziswa kokufutha kwamaqabunga. I-Hydroxyethyl cellulose ingasetshenziswa futhi njenge-ejenti yokwakha ifilimu yokumboza imbewu; njenge-binder kanye ne-ejenti yokwakha ifilimu yokuvuselela amaqabunga kagwayi.

7 Iphepha noyinki

I-Hydroxyethyl cellulose ingasetshenziswa njenge-ejenti yokulinganisa ephepheni nasekhadibhodini, kanye ne-ejenti yokuqina nokulenga yama-inki asekelwe emanzini. Enqubweni yokwenza iphepha, izakhiwo eziphakeme ze-hydroxyethyl cellulose zifaka phakathi ukuhambisana nezinsini eziningi, ama-resin nosawoti ongaphili, i-foam ephansi, ukusetshenziswa kwe-oxygen ephansi kanye nekhono lokwenza ifilimu yobuso obubushelelezi. Ifilimu inokungenela okuphansi kobuso kanye nokucwebezela okuqinile, futhi inganciphisa nezindleko. Iphepha elinamathiselwe nge-hydroxyethyl cellulose lingasetshenziswa ukuphrinta izithombe ezisezingeni eliphezulu. Ekwenziweni kwe-inki esekelwe emanzini, i-inki esekelwe emanzini eqiniswe nge-hydroxyethyl cellulose iyoma ngokushesha, inokusabalalisa okuhle kombala, futhi ayibangeli ukunamathela.

Indwangu engu-8

Ingasetshenziswa njenge-binder kanye ne-ejenti yokulinganisa ekunyatheliseni nasekudayini indwangu kanye ne-latex coating; i-ejenti yokuqinisa izinto zokulinganisa ngemuva kwekhaphethi. Ku-fiber yengilazi, ingasetshenziswa njenge-ejenti yokwakha kanye ne-adhesive; ku-slurry yesikhumba, ingasetshenziswa njenge-modifier kanye ne-adhesive. Ihlinzeka nge-viscosity ebanzi yalezi zingubo noma izinamathiseli, yenza ingubo ifane futhi inamathele ngokushesha, futhi ingathuthukisa ukucaca kokunyathelisa kanye nodayi.

9 Izinto zobumba

Ingasetshenziswa ukwakha izinamathiseli ezinamandla kakhulu ze-ceramics.

10.umuthi wamazinyo

Ingasetshenziswa njengesithako esikhulu ekukhiqizeni amazinyo.

Ukupakisha: 

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