I-High-purity Methyl Hydroxyethyl Cellulose (MHEC) iyisengezo esibalulekile embonini yezokwakha, ikakhulukazi ezidakamizweni. Indima yayo eyinhloko njenge-ejenti egcina amanzi ithonya kakhulu ukusebenza, ukuqina, nokusebenza kwezinsimbi.
Izakhiwo ze-High-Purity MHEC
1. Isakhiwo Samakhemikhali Nokuhlanzeka:
I-MHEC iphuma ku-cellulose etholakala ngokufaka i-etherification ye-cellulose ngamaqembu e-methyl kanye ne-hydroxyethyl. Isakhiwo sayo samakhemikhali sihlanganisa amaqembu e-hydroxyl (-OH) enza kube lula ukuhlangana kwe-hydrogen nama-molecule amanzi, okuthuthukisa amandla ayo okugcina amanzi. Ukuhlanzeka okuphezulu kwe-MHEC kubonakala ngezinga eliphezulu lokushintshwa (DS) kanye nezinga eliphansi le-polymerization (DP), okuholela ekuncibilikeni okungcono nokuvumelana kwezicelo zodaka.
2. I-Solubility kanye ne-Viscosity:
I-High-purity MHEC iyancibilika emanzini abandayo nashisayo kodwa ayincibiliki kuzincibilikisi eziningi eziphilayo. I-viscosity yayo iyahlukahluka ngokuya ngokugxila kanye nezinga lokushisa, okudlala indima ebalulekile ekusebenzeni nasekuhlanganeni kodaka. I-viscosity yezixazululo ze-MHEC ithinta ngokuqondile izakhiwo zokugcina amanzi, njengoba i-viscosity ephakeme ithuthukisa ukubopha kwamanzi ngaphakathi kwe-matrix yodaka.
Izindlela Zokugcina Amanzi
1. Ukwakhiwa Kwenethiwekhi Enjenge-gel:
Lapho ihlakazwa emanzini, i-MHEC yakha inethiwekhi ye-viscous, efana nejeli ebamba ama-molecule amanzi. Le nethiwekhi isebenza njengesithiyo, inciphisa ukuhwamuka nokumuncwa kwamanzi ngezinto ezizungezile, ezifana nosimende nama-aggregates. Isakhiwo esifana nejeli sinikeza ukukhululwa kwamanzi okulawulwayo, okubalulekile ekufakweni kahle kwezinhlayiya zikasimende.
2. Ukwehliswa kwe-Capillary Action:
Ukuhlanzeka okuphezulu kwe-MHEC kunciphisa isenzo se-capillary ngaphakathi kodaka ngokugcwalisa ama-micro-pores nama-capillaries ngenethiwekhi yayo efana ne-gel. Lokhu kunciphisa kunciphisa ukuhamba kwamanzi phezulu, lapho angahwamuka khona. Ngakho-ke, okuqukethwe kwamanzi angaphakathi kuhlala kuzinzile, okukhuthaza ukuphulukiswa okungcono kanye ne-hydration.
3. Ukubumbana Okuthuthukisiwe Nozinzo:
I-MHEC ithuthukisa ukuhlangana kodaka ngokwandisa i-viscosity nokudala ukuxubana okuzinzile. Lokhu kuzinza kuvimbela ukuhlukaniswa kwezingxenye futhi kuqinisekisa ukusatshalaliswa okufanayo kwamanzi kulo lonke udaka. Imvelo ehlangene ye-MHEC iphinde ithuthukise ukunamathela kodaka kuma-substrates, ukunciphisa ukuncipha nokuqhekeka.
Izinzuzo ze-High-Purity MHEC in Mortar
1. Ukusebenza Okuthuthukisiwe:
Izakhiwo ezigcina amanzi ze-MHEC zithuthukisa ukusebenza kodaka ngokugcina umswakama ongaguquki. Lokhu kubangela ukuxutshwa okubushelelezi, okuphenduleka kalula okulula ukukusebenzisa nokulolonga. Ukusebenza okuthuthukisiwe kunenzuzo ikakhulukazi ekusetshenzisweni okufana nokunamatheliswa kwamathayela namathayela, lapho kulula khona ukufaka isicelo.
2. Isikhathi Esandisiwe Sokuvula:
Ukuhlanzeka okuphezulu kwe-MHEC kunweba isikhathi esivulekile sodaka, okuvumela isikhathi esengeziwe sokulungiswa nokuqeda ngaphambi kokuba udaka lusethe. Lokhu kunenzuzo ikakhulukazi ezindaweni ezishisayo noma ezomile lapho ukuhwamuka okusheshayo kungaholela ekomisweni ngaphambi kwesikhathi kanye nokuncipha kwamandla okubopha. Ngokugcina amanzi, i-MHEC iqinisekisa isikhathi eside sokusebenza, ithuthukisa ikhwalithi yesicelo sokugcina.
3. Ukuthuthukiswa Kwamanzi Nokuqina Okungcono:
I-hydration efanele ibalulekile ekuthuthukiseni amandla nokuhlala isikhathi eside odakeni olusekelwe kusimende. Ukuhlanzeka okuphezulu kwe-MHEC iqinisekisa ukuthi amanzi anele ayatholakala ngenqubo ye-hydration, okuholela ekwakhekeni okungcono kwe-calcium silicate hydrates (CSH), enesibopho samandla nobuqotho bodaka. Lokhu kubangela umkhiqizo oqediwe onamandla futhi ohlala isikhathi eside.
4. Ukuvimbela Ukuqhekeka Nokuncipha:
Ngokugcina amanzi nokugcina umswakama wangaphakathi ongaguquki, i-MHEC inciphisa ingozi yokomisa ukuncipha nokuqhekeka. Izingosi ezingenawo ukugcinwa kwamanzi anele zivame ukuncipha futhi ziqhekeke njengoba zoma, zibeke engcupheni ubuqotho besakhiwo kanye nekhwalithi yobuhle yohlelo lokusebenza. I-MHEC inciphisa lezi zinkinga ngokuqinisekisa inqubo yokomisa kancane kancane.
5. Ukuhambisana Nezinye Izithasiselo:
I-High-purity MHEC iyahambisana nohlu olubanzi lwezinye izithasiselo ezisetshenziswa ekwenziweni kodaka, njengamapulasitiki, ama-accelerator, nama-retarders. Lokhu kuhambisana kuvumela ukuguqulwa okulungiselelwe ezakhiweni zodaka ngaphandle kokuphazamisa izinzuzo zokugcina amanzi ezinikezwa yi-MHEC. Isiza ukuthuthukiswa kodaka olukhethekile lwezinhlelo zokusebenza ezahlukene kanye nezimo zemvelo.
Izicelo Ezisebenzayo ze-MHEC ku-Mortar
1. Izinamathiselo zamathayela:
Ezinamathiselwe zamathayili, ukuhlanzeka okuphezulu kwe-MHEC kuthuthukisa ukunamathela, ukusebenza kahle, nesikhathi esivulekile, okwenza kube lula ukubeka nokulungisa amathayili. Izakhiwo ezigcina amanzi zivimbela ukomiswa ngaphambi kwesikhathi, kuqinisekisa ukubopha okuqinile kanye nokunciphisa ingozi yokuhlehla kwamathayili ngokuhamba kwesikhathi.
2. Upulasi kanye Nehlinzeka:
I-MHEC ithuthukisa ukusabalala nokuhlangana komxube, okuholela ekuqedeni okushelelayo. Isikhathi esivulekile esinwetshiwe kanye nokugcinwa kwamanzi kunomthelela ekwelapheni okungcono, ukunciphisa amathuba okuqhekeka futhi kuthuthukise ukuqina kwe-plaster.
3. Izinhlanganisela zokuzilinganisa:
Ezakhiweni zokuzilinganisa, i-MHEC isiza ukugcina ukugeleza nokuvumelana komxube. Amandla ayo okugcina amanzi aqinisekisa ukuphela kwendawo efanayo futhi avimbele ukusetha okusheshayo, okungaholela ezindaweni ezingalingani.
4. I-Cementitious Grouts:
I-MHEC ithuthukisa ukusebenza nokugcinwa kwamanzi kuma-grouts kasimende, iqinisekisa ukuthi agcwalisa izikhala ngokuphumelelayo futhi aphulukise ngendlela efanele. Lokhu kunciphisa ukuncipha futhi kuthuthukisa ukusebenza kwesikhathi eside kwe-grout, ikakhulukazi ezindaweni ezinabantu abaningi.
Izinselelo Nokucatshangelwa
1. Ukuthuthukiswa Kwemithamo:
Ukusebenza kwe-MHEC njenge-ejenti egcina amanzi kuncike esikalini esifanele. Amanani eqile angaholela ku-viscosity eyeqile, okwenza udaka lube nzima ukuphatha, kuyilapho amanani anganele angase anganikezi izinzuzo ezifiselekayo zokugcina amanzi. Ukwakhiwa okunembile nokuhlolwa kuyadingeka ukuze kuzuzwe ukusebenza kahle.
2. Izici Zemvelo:
Izimo zemvelo ezifana nezinga lokushisa nomswakama zingathinta ukusebenza kwe-MHEC odakeni. Amazinga okushisa aphezulu angasheshisa ukuhwamuka kwamanzi, okudinga imithamo ephezulu ye-MHEC ukuze kugcinwe ukusebenza. Ngokuphambene, umswakama ophezulu ungase unciphise isidingo sama-ejenti okugcina amanzi.
3. Ukucatshangelwa kwezindleko:
I-High-purity MHEC ingabiza kakhulu kunezinye izindlela zokuhlanzeka okuphansi noma amanye ama-ejenti okugcina amanzi. Kodwa-ke, ukusebenza kwayo okuphezulu kanye nezinzuzo ezinikezayo ngokuya ngokusebenza, amandla, nokuqina kungathethelela izindleko eziphakeme ezinhlelweni eziningi.
I-High-purity MHEC iyingxenye ebalulekile ekwakhiweni kodaka ngenxa yezindawo zayo eziyingqayizivele zokugcina amanzi. Ngokwenza inethiwekhi efana ne-gel, ukunciphisa isenzo se-capillary, nokuthuthukisa ukuhlangana, i-MHEC ithuthukisa ukusebenza, ukuqina, kanye nokusebenza okuphelele kwezinsimbi. Izinzuzo zayo zibonakala ekusetshenzisweni okuhlukahlukene, kusukela ku-adhesive tile kuya kuma-self-leveling compounds. Nakuba izinselele ezifana nokwenza kahle umthamo nokucatshangelwa kwezindleko zikhona, izinzuzo zokusebenzisa i-MHEC yobumsulwa bukwenza kube ukukhetha okuncanyelwayo kokuzuza imiphumela yodaka lwekhwalithi ephezulu.
Ukufaka ukhonkolo nokufaka izicelo,
Isikhathi sokuthumela: Jun-15-2024