Ama-cellulose ethersama-polymers ancibilika emanzini asuselwa ku-cellulose, i-polymer eningi kakhulu ngokwemvelo. Iminyaka engaphezu kwengu-60, le mikhiqizo eguquguqukayo ibambe iqhaza elibalulekile ekusetshenzisweni okuningi, kusukela emikhiqizweni yokwakha, izitsha zobumba nopende kuya ekudleni, izimonyo nemithi.
Emikhiqizweni yokwakha, ama-cellulose ethers asebenza njengama-thieners, ama-binders, ama-filmformers kanye nama-ejenti okugcina amanzi. Ziphinde zisebenze njengezinsiza zokumisa, ama-surfactants, amafutha okugcoba, ama-colloid avikelayo nama-emulsifers. Ngaphezu kwalokho, izixazululo ezinamanzi zamanye ama-cellulose ethers thermally gel, impahla eyingqayizivele edlala indima ebalulekile ekumangaleni.
ezihlukahlukene izicelo. Le nhlanganisela ebalulekile yezakhiwo ayitholakali kunoma iyiphi enye i-polymer encibilika emanzini.
Iqiniso lokuthi izakhiwo eziningi eziwusizo zikhona ngesikhathi esisodwa futhi ngokuvamile zisebenza ngokuhlanganyela kungaba inzuzo enkulu yezomnotho. Ezinhlelweni eziningi, izithako ezimbili, ezintathu noma ngaphezulu zizodingeka ukwenza umsebenzi ofanayo owenziwa umkhiqizo owodwa we-cellulose ether. Ngaphezu kwalokho, ama-cellulose ethers asebenza kahle kakhulu, ngokuvamile
ukukhiqiza ukusebenza okuhle kakhulu ekugxiliseni okuphansi kunalokho okudingekayo kwamanye ama-polymers ancibilikayo emanzini.
I-Dow Construction Chemicals ihlinzeka ngemikhiqizo eminingi ye-cellulosic, okuhlanganisa i-methyl cellulose, i-hydroxyethyl cellulose ne-carboxymethyl cellulose. I-Methyl cellulose ethers isetshenziswa kabanzi ekusetshenzisweni okuningi embonini yokwakha neyokwakha.
Ikhemistry yeCellulose Ethers
Ibhizinisi lethu lihlinzeka ngama-cellulose ether ngezinhlobo ezine eziyisisekelo:
1.I-Hydroxyethyl methyl cellulose (HEMC/MHEC)
2.I-Hydroxypropyl methyl cellulose (HPMC,MC)
3.I-Hydroxyethyl cellulose (HEC)
4.Carboxy methyl cellulose(CMC)
Zombili lezi zinhlobo zinomgogodla we-polymeric we-cellulose, i-carbohydrate yemvelo equkethe ukwakheka okuphindaphindayo okuyisisekelo kwamayunithi we-anhydroglucose. Ngesikhathi sokwenziwa kwe-cellulose ethers, imicu ye-cellulose ishiswa ngesisombululo se-caustic, yona, iphathwa nge-methyl chloride, kanye ne-propylene oxide noma i-ethylene oxide, ikhiqiza i-hydroxypropyl methyl cellulose noma i-hydroxyethyl methyl cellulose, ngokulandelana. Umkhiqizo we-fibrous reaction uyahlanzwa futhi ugaywe ube yimpushana ecolekile, efanayo.
Imikhiqizo yezinga elikhethekile nayo yenziwe ukuze ihlangabezane nezidingo ze-specifc izimboni.
Imikhiqizo yethu ye-cellulose ether itholakala ngezindlela ezintathu ezihlukene: impushana, impushana efakwe phezulu kanye ne-granular. Uhlobo lomkhiqizo owakhiwayo lunomthelela okhethweni. Ezingxenyeni eziningi zokuxuba okomile, i-powder engaphenduliwe ivame ukusetshenziswa, kuyilapho ukuxuba okulungiselelwe, lapho i-cellulosic powder yengezwa ngokuqondile emanzini, i-powder ehlanjululwe phezulu noma amafomu e-granular akhethwayo.
Izakhiwo Ezijwayelekile
Izakhiwo ezijwayelekile ezijwayelekile kuma-cellulose ether ethu zibalwe lapha. Imikhiqizo ngayinye ibonisa lezi zakhiwo ngamazinga ahlukahlukene futhi ingaba nazo
additional properties desirable for specific applications. For more information, email at sales@kimachemical.com .
| Impahla | Imininingwane | Izinzuzo |
| Iyabophezela | Isetshenziswa njengezibophezelo ezisebenza kahle kakhulu zezinto zikasimende ze-fber-extruded | Amandla aluhlaza |
| Emulsifcation | Zinzisa ama-emulsions ngokunciphisa ukungezwani okungaphezulu nokuphakathi kobuso futhi | Ukuzinza |
| Ukwakhiwa kwefilimu | Yakha amaflm ancibilikayo emanzini acacile, aqinile | • Izithiyo ezinhle kakhulu zamafutha namafutha |
| Ukuthambisa | Yehlisa ukungqubuzana kusimende extrusion; kuthuthukisa ukusebenza kwethuluzi lesandla | • Ukumpompa okuthuthukisiwe kukakhonkolo, ama-grout omshini kanye nesifutho |
| I-Nonionic | Imikhiqizo ayinakho ukushajwa kwe-ionic | • Ngeke yinkimbinkimbi nosawoti wensimbi noma ezinye izinhlobo ze-ionic ukuze zakhe |
| Ukunyibilika (organic) | Incibilika kumasistimu anambambili we-organic and organic solvent/amanzi ezinhlotsheni ezikhethiwe namabanga | Inhlanganisela eyingqayizivele ye-organic solubility kanye nokuncibilika kwamanzi |
| Ukuncibilika (amanzi) | • Imikhiqizo ehlanjululwe phezulu/i-granular ingangezwa ngqo ku-aqueous | • Ukuhlakazeka kalula nokuhlakazeka |
| ukuzinza kwe-pH | Izinzile phezu kwebanga le-pH lika-2.0 ukuya ku-13.0 | • Ukuzinza kwe-viscosity |
| Umsebenzi ongaphezulu | • Yenza njengama-surfactants kwisisombululo esinamanzi | • Emulsifcation |
| Ukumiswa | Ilawula ukuhlaliswa kwezinhlayiya eziqinile kumasistimu anamanzi | • Ukunqanda ukuhlanzwa kwe-aggregate noma ama-pigments |
| I-gelation eshisayo | Kuvela kuzixazululo ezinamanzi ze-methyl cellulose ether uma ishiswa ngaphezu kwezinga lokushisa elithile | • Izici ezilawulekayo ezimisiwe Ama-gel abuyela esixazululweni lapho epholisa |
| Ukuqina | Uhlu olubanzi lwesisindo samangqamuzana okuqinisa amasistimu asekelwe emanzini | • Uhlu lwamaphrofayili e-rheological |
| Ukugcinwa kwamanzi | I-ejenti enamandla yokugcina amanzi; igcina amanzi ezinhlelweni ezakhiwe | • Isebenza kahle kakhulu |
Izinamathiselo Zethayela Ezisekelwe Kusimende
Imikhiqizo yethu inika amandla ukusebenza kodaka olusethiwe elincane ngokugcina amanzi kanye nokusebenza kwe-rheological ye-pseudoplastic. Finyelela ukusebenza okukhilimu nokulula nokuvumelana, ukugcinwa kwamanzi okuphezulu, ukumanzisa okuthuthukisiwe kuthayela, isikhathi esihle kakhulu sokuvula nesikhathi sokulungisa, nokuningi.
Amathayela Grouts
Ama-cellulose ethers asebenza njengokugcina amanzi kanye nosizo lokumiswa. Zitholele ukusebenza okulula, ukunamathela okuhle emaphethelweni amathayela, ukushwabana okuphansi, ukumelana nokuhuzeka okuphezulu, ukuqina okuhle nokuhlangana, nokunye.
Izingubo zangaphansi zokuzilinganisa
Ama-Celluloses anikeza ukugcinwa kwamanzi kanye nokuthambisa ukuze kuthuthukiswe ukugeleza nokumpompa, kuncishiswe ukuhlukaniswa nokunye.
Izindwangu ze-EIFS/Skim Coat
Letha ukuthinta okuphelele kokusebenza okuthuthukisiwe, ukuqiniswa kwe-air void, ukunamathela, ukugcinwa kwamanzi nokunye.
Amapulasi Asekelwe Kusimende
Letha ukusebenza okungcono ngokumelana nokuntenga okuthuthukisiwe, ukusebenza kahle, isikhathi esivulekile, ukuqiniswa kwe-air-void, ukunamathela, ukugcinwa kwamanzi, isivuno nokunye.
Izinto zokwakha ezisekelwe ku-Gypsum
Letha umphumela wokugcina oyifunayo wendawo ebushelelezi, elinganayo futhi eqinile enekhwalithi yomkhiqizo engaguquki nezici zokusebenza ezibalulekile.
Izinto Ezinwetshiwe zikaSimende ne-Cement-Fiber
Yehlisa ukungqubuzana futhi unikeze ukuthambisa ukuze usize ekukhipheni nezinye izinqubo zokwakheka.
Amasistimu Asekelwe ku-Latex (Alungele ukusetshenziswa)
Uhlu lwamamaki e-viscosity luletha ukusebenza kahle, ukuncibilika okubambezelekile, isikhathi esivulekile, isikhathi sokulungisa nokunye.
Isikhathi sokuthumela: Nov-13-2018