IHydroxypropyl methylcellulose (HPMC)yikhemikhali yepolymer ephilayo esetyenziswa kakhulu kwizinto zokwakha, ngakumbi kudaka, iingubo, izinto zokuncamathelisa kunye nezinye iimveliso. Umsebenzi oyintloko we-admixture ye-HPMC kukuphucula ukusebenza kokwakhiwa kodaka, ukuphucula ukugcinwa kwamanzi kunye nokwandisa ixesha lokuvula. Njengoko imfuno yezinto eziphezulu zokusebenza kushishino lokwakha iqhubeka nokukhula, ukusetyenziswa kwe-HPMC kufumene ingqalelo ebanzi.
1. Iimpawu ezisisiseko ze-HPMC
I-HPMC yi-ether yeselulosi enyibilikayo emanzini kunye ne-hydration elungileyo, ukunamathela kunye neempawu ezityebileyo. Inokuphucula kakhulu ukugcinwa kwamanzi kudaka, yandise ixesha lokuvula, kwaye yandise ukuxhathisa kwe-sag kunye nokusebenza kokwakhiwa kodaka. Ezi zakhiwo zigqwesileyo zenza i-HPMC enye yezinto ezixubeneyo eziqhelekileyo kudaka kunye nezinye izinto zokwakha.
2. Inkqubo yokomisa udaka
Inkqubo yokomisa yodaka idla ngokubandakanya iinxalenye ezimbini: ukuphuphuma kwamanzi kunye ne-samente hydration reaction. I-cement hydration yeyona ndlela iphambili yokunyanga udaka, kodwa ukuphuphuma kwamanzi ngexesha lokomisa nako kudlala indima ebalulekileyo. Umswakama kumdaka we-samente kufuneka ususwe ngokuthe ngcembe ngenkqubo yokuqhuma, kwaye isantya sale nkqubo sichaphazela ngokuthe ngqo umgangatho, ukuqina kunye nokusebenza okulandelayo kokwakhiwa kwemveliso egqityiweyo emva kokwakhiwa.
3. Impembelelo ye-HPMC kwisantya sokumisa udaka
Impembelelo ye-AnxinCel®HPMC ye-admixture kwisantya sokumisa sodaka ibonakala ikakhulu kwiinkalo ezimbini: ukugcinwa kwamanzi kunye nokulawula ukukhuphuka kwamanzi.
(1) Ugcino lwamanzi oluphuculweyo kunye nokucotha isantya sokomisa
I-HPMC ineempawu eziqinileyo zokugalela amanzi kunye nokugcinwa kwamanzi. Inokwenza ifilimu ye-hydration kwidaka ukunciphisa ukuphuphuma kwamanzi ngokukhawuleza. Okukhona ukugcinwa kwamanzi kodaka, kokukhona ukoma kancinci kuba amanzi agcinwa eludaka ixesha elide. Ngoko ke, emva kokongeza i-HPMC, inkqubo yokuphuma kwamanzi kumdaka iya kuvinjelwa kwinqanaba elithile, okukhokelela kwixesha elide lokumisa.
Nangona ukucotha ukuphuphuma kwamanzi kunokwandisa ixesha lokumisa kodaka, le nkqubo yokomisa kancinci iluncedo, ngakumbi ngexesha lokwakha, njengoko inokuthintela ngokufanelekileyo iingxaki ezinjengokoma komphezulu kunye nokuqhekeka kodaka kunye nokuqinisekisa umgangatho wokwakha.
(2) Ukulungelelaniswa kwenkqubo ye-cement hydration
Indima ye-HPMC kudaka lwesamente ayiphelelanga ekuphuculeni ugcino lwamanzi. Iyakwazi nokulawula inkqubo yokufakwa kwamanzi kwisamente. Ngokutshintsha i-rheology yodaka, i-HPMC inokuchaphazela iqondo loqhagamshelwano phakathi kwamasuntswana e-samente kunye nokufuma, ngaloo ndlela ichaphazela izinga le-hydration yesamente. Kwezinye iimeko, ukongezwa kwe-AnxinCel®HPMC kunokulibazisa kancinane inkqubo ye-hydration yesamente, okubangela ukuba udaka lunyange kancinane. Esi siphumo sivame ukufezekiswa ngokulungelelanisa ukusabalalisa ubungakanani be-samente kunye noqhagamshelwano lwamaqhekeza e-samente, ngaloo ndlela kuchaphazela isantya sokumisa.
(3) Ukuziqhelanisa nokufuma kwendalo
I-HPMC inokuphucula ukunganyangeki kodaka, ukwenza udaka luziqhelanise nokufuma kokusingqongileyo. Kwindawo eyomileyo, ugcino lwamanzi lwe-HPMC lubaluleke kakhulu. Inokulibazisa ngokufanelekileyo ukulahleka kokufuma komhlaba kunye nokunciphisa iintanda ezingaphezulu ezibangelwa kukukhawuleza kokumisa. Oku kubaluleke ngakumbi kwiindawo ezishushu okanye ezomileyo. Ngoko ke, i-HPMC ayilungelelanisi kuphela izinga lokunyuka kwamanzi, kodwa iphinda ikhulise ukuguquguquka kodaka kwindawo yangaphandle, ukwandisa ngokungathanga ngqo ixesha lokumisa.
4. Izinto ezichaphazela isantya sokumisa
Ukongeza kokongezwa komxube we-HPMC, isantya sokumisa sodaka sikwachatshazelwa zezinye izinto ezininzi, kubandakanya:
Umlinganiselo wodaka: Umlinganiselo wesamente kumanzi kunye nomlinganiselo weaggregate ecolekileyo ukuya kwiaggregate erhabaxa iya kuchaphazela isiqulatho sokufuma sodaka kwaye ngaloo ndlela isantya sokoma.
Iimeko zokusingqongileyo: Ubushushu, umswakama kunye neemeko zokujikeleza komoya zizinto ezibalulekileyo ezichaphazela isantya sokumisa udaka. Kwimekobume yobushushu obuphezulu kunye nokufuma okuphantsi, amanzi aba ngumphunga ngokukhawuleza, ngokuphambanayo.
Ubukhulu bodaka: Ubukhulu bodaka buchaphazela ngokuthe ngqo inkqubo yokomisa. I-screeds ezityebileyo zihlala zithatha ixesha elide ukuba zome ngokupheleleyo.
5. Iingqwalasela zesicelo esisebenzayo
Kwizicelo ezisebenzayo, iinjineli zokwakha kunye nabasebenzi bokwakha bahlala befuna ukulinganisa isantya sokumisa udaka kunye nokusebenza kokwakhiwa. Njenge-admixture, i-HPMC inokulibazisa isantya sokumisa, kodwa olu phawu luluncedo kakhulu kwiindawo apho ixesha lokwakha kufuneka ligcinwe. Ngokomzekelo, kwiindawo zokushisa eziphezulu, ezomileyo zomoya, i-HPMC inokuthintela ngokufanelekileyo ukomisa komhlaba kunye nokuqhekeka, ukuqinisekisa ukusebenza kakuhle kunye nexesha elide lokuvula udaka ngexesha lokwakha.
Nangona kunjalo, kwezinye iimeko ezithile, ezinjengeeprojekthi ezifuna ukomiswa ngokukhawuleza kodaka, kunokuba yimfuneko ukulawula inaniHPMCidityaniswe okanye ikhethe ifomula engaqulathanga HPMC ukukhawulezisa inkqubo yokomisa.
Njengomxube wodaka, i-AnxinCel® HPMC inokuphucula ngokufanelekileyo ukugcinwa kwamanzi kudaka, yandise ixesha lokuvula, kwaye ichaphazele ngokungangqalanga isantya sokumisa sodaka. Emva kokongeza i-HPMC, isantya sokumisa sodaka ngokuqhelekileyo sinciphisa, esinefuthe elihle ekuphepheni iingxaki ezifana nokuqhekeka okomileyo ngexesha lokwakha. Nangona kunjalo, utshintsho kwisantya sokumisa lukwachatshazelwa zizinto ezahlukeneyo ezifana nomlinganiselo wodaka kunye neemeko zokusingqongileyo. Ke ngoko, kwizicelo ezibonakalayo, isixa se-HPMC kufuneka sikhethwe ngokufanelekileyo ngokwemiqathango ethile ukuze kuphunyezwe esona siphumo silungileyo sokwakha.
Ixesha lokuposa: Jan-10-2025