IHydroxypropyl methylcellulose inokuphucula ipropathi echasene nokusasazwa kodaka lwesamente

IHydroxypropyl methylcellulose (HPMC)i-polymer compound ebalulekileyo esetyenziswa ngokubanzi kwintsimi yezinto zokwakha, ngakumbi kwi-cement mortar. Iphucula ipropathi echasene nokusasazwa kodaka lwesamente ngokusebenza kwayo okugqwesileyo, ngaloo ndlela iphucula kakhulu ukusebenza kolwakhiwo kunye nokuqina kodaka.

1. Iimpawu ezisisiseko ze-hydroxypropyl methylcellulose

I-HPMC yi-ether ye-cellulose engeyo-ionic efunyenwe ngokuguqula i-cellulose yendalo ngokwemichiza. Inokunyibilika kakuhle kwamanzi, ukugcinwa kwamanzi kunye nokubambelela, kwaye ibonisa ukuzinza okuphezulu kweekhemikhali kunye nokuhambelana kwezinto eziphilayo. Kwizinto ezisekelwe kwi-cement, i-AnxinCel®HPMC iphucula kakhulu ukusebenza kwezinto ngokulawula ukusabela kwe-hydration kunye nokuziphatha kwe-viscosity.

2. Indlela yokuphucula ipropathi echasene nokusasazwa kodaka lwesamente

Ipropathi echasene nokusasazwa ibhekiselele ekukwazini kodaka lwesamente ukugcina ingqibelelo yayo phantsi kokukhuhla kwamanzi okanye iimeko zokungcangcazela. Emva kokongeza i-HPMC, indlela yayo yokuphucula i-anti-dispersion ikakhulu ibandakanya le miba ilandelayo:

2.1. Ukugcinwa kwamanzi okongeziweyo

Iimolekyuli ze-HPMC zingenza ifilimu ye-hydration kumphezulu wamasuntswana e-samente, enciphisa ngokufanelekileyo izinga lokunyuka kwamanzi kunye nokuphucula amandla okugcina amanzi odaka. Ukugcinwa kwamanzi okulungileyo akugcini nje ukunciphisa umngcipheko wokulahleka kwamanzi kunye nokuqhekeka kodaka, kodwa kunciphisa ukusasazeka kweengqungquthela ezibangelwa ukulahleka kwamanzi, ngaloo ndlela kuphucula ukuchithwa kwamanzi.

2.2. Ukwandisa i-viscosity

Omnye wemisebenzi ephambili ye-HPMC kukwandisa kakhulu i-viscosity yodaka. I-viscosity ephezulu ivumela amasuntswana aqinileyo kwidaka ukuba adityaniswe ngokuqinileyo, okwenza kube nzima ukusabalalisa xa kuxhomekeke kumandla angaphandle. I-viscosity ye-HPMC iyatshintsha ngotshintsho ekugxininiseni kunye nokushisa, kwaye ukhetho olufanelekileyo lwesixa sokongeza sinokufikelela kwisiphumo esihle.

2.3. Uphuculo thixotropy

I-HPMC inika udaka i-thixotropy elungileyo, oko kukuthi, ine-viscosity ephezulu kwindawo engatshintshiyo, kwaye i-viscosity iyancipha xa iphantsi kwamandla okucheba. Iimpawu ezinjalo zenza ukuba i-mortar isasazeke lula ngexesha lokwakhiwa, kodwa inokubuyisela ngokukhawuleza i-viscosity kwisimo esimileyo ukukhusela ukusabalalisa kunye nokuhamba.

2.4. Lungiselela ukusebenza kojongano

I-HPMC isasazwa ngokulinganayo kumdaka, onokuthi wenze ibhulorho phakathi kwamasuntswana kunye nokuphucula amandla okudibanisa phakathi kwamasuntswana. Ukongezelela, umsebenzi ongaphezulu we-HPMC unokunciphisa ukunyanzeliswa komphezulu phakathi kweengqungquthela zesamente, ngaloo ndlela uphucula ngakumbi ukusebenza kwe-anti-dispersion.

3. Iziphumo zokusetyenziswa kunye neenzuzo

Kwiiprojekthi zangempela, udaka lwesamente oluxutywe ne-HPMC lubonisa ukuphucuka okubalulekileyo ekusebenzeni okuchasene nokusabalalisa. Ezi zilandelayo zezinye iingenelo eziqhelekileyo:

Ukuphucula ukusebenza kakuhle kolwakhiwo: Udaka olunenkqubo eyomeleleyo yokuchasana nokusasazeka kulula ukulawula ngexesha lokwakha kwaye aluqhelekanga ukwahlula okanye ukopha.

Ukuphucula umgangatho womphezulu: Ukunamathela kodaka kwisiseko kuphuculwe, kwaye umphezulu emva kokutyabeka okanye ukupakisha kuhamba kakuhle.

Ukuphucula ukuqina: Ukunciphisa ilahleko yamanzi ngaphakathi kodaka, ukunciphisa ukwanda kwe-voids ebangelwa ukusabalalisa, kwaye ngaloo ndlela kuphuculwe ukuxinana kunye nokuqina kodaka.

4. Impembelelo yezinto kunye nezicwangciso zokuphucula

Umphumo wokongezwa kwe-HPMC usondelelene nedosi yayo, ubunzima bemolekyuli kunye neemeko zokusingqongileyo. Ukongezwa kwexabiso elifanelekileyo le-HPMC kunokuphucula ukusebenza kodaka, kodwa ukongezwa okugqithisileyo kunokukhokelela kwi-viscosity egqithisileyo kwaye kuchaphazele ukusebenza kokwakhiwa. Izicwangciso zokuphucula ziquka:

Ukukhetha i-HPMC enobunzima obufanelekileyo bemolekyuli kunye neqondo lokutshintshela: I-HPMC enobunzima obuphezulu bemolekyuli ibonelela nge-viscosity ephezulu, kodwa ukusebenza kunye nokusebenza kufuneka kulinganiswe ngokwezicelo ezithile.

Lawula ngokuchanekileyo inani lokongezwa: I-HPMC idla ngokudityaniswa kwisixa se-0.1% -0.5% yobunzima besamente, ekufuneka ihlengahlengiswe ngokweemfuno zangempela.

Nika ingqalelo kwindawo yokwakha: Ubushushu kunye nokufuma kunempembelelo enkulu ekusebenzeni kweHPMC, kunye nefomula kufuneka ilungiswe phantsi kweemeko ezahlukeneyo ukufezekisa iziphumo ezilungileyo.

Ukusetyenziswa kwe-hydroxypropyl methylcellulose kwi-cement mortar kuphucula ngokufanelekileyo i-anti-dispersion yezinto, ngaloo ndlela iphucula ukusebenza kokwakhiwa kunye nokuqina kwexesha elide lodaka. Ngophando olunzulu malunga nendlela yesenzo se-AnxinCel®HPMC kunye nokuphucula inkqubo yokongeza, iinzuzo zayo zokusebenza zingaqhutyelwa ngakumbi ukubonelela ngezisombululo eziphezulu zomgangatho weeprojekthi zokwakha.