Isiphumo se-hydroxypropyl starch ether kwiipropati zodaka
I-Hydroxypropyl starch ether (HPS), isitashi esibalulekileyo sokuguqulwa kweekhemikhali, idlala indima ebalulekileyo ekusetyenzisweni kwezinto zokwakha, ngakumbi udaka, ngenxa yeempawu zayo ezizodwa zeekhemikhali. Ukuqaliswa kwe-HPS kuphucula ukusebenza ngokubanzi kodaka ikakhulu ngokuchaphazela iipropati ze-rheological, ukugcinwa kwamanzi, amandla ebhondi kunye nokumelana nokuqhekeka kodaka.
1. Ukuphucula iimpawu ze-rheological
Ukusebenza okuphuculweyo kolwakhiwo: I-HPS inokuphucula kakhulu ukusebenza kodaka. Ekubeni i-molecule ye-HPS inamandla okuqina kunye ne-viscosity adjustment effect, inokwenza ukuba udaka lube yinto efanelekileyo ngexesha lokuxuba. Eli nqaku lenza ukuba udaka lusasazeke kwaye lube lula, ngaloo ndlela luphucula ukusebenza kakuhle kolwakhiwo.
Ukulungelelanisa i-viscosity: I-HPS inokutshintsha iimpawu ze-rheological zodaka, iyenze ibonise iimpawu zokucheba. Le propati yenza udaka lube lulwelo ngakumbi xa luphantsi koxinzelelo lwe-chear (njengexesha lokuxutywa okanye ukwakhiwa), ngelixa ugcina i-viscosity ethile kwindawo engatshintshiyo ukunqanda ukudilika kunye nokwahlula.
2. Ukuphucula ukugcinwa kwamanzi
Ukulibazisa ukuphuphuma kwamanzi: I-HPS inokugcina amanzi ngokufanelekileyo ngokwenza isakhiwo sothungelwano ngaphakathi kodaka. Olu phawu lubalulekile kwindlela yokusabela kodaka, ngakumbi kwiindawo zokwakha ezishushu okanye ezomileyo. Ukulibazisa ukuphuphuma kwamanzi kunokuphucula amandla okuqala kunye neempawu ezibophezelayo zodaka.
Ukuphucula inkqubo yokuqiniswa kodaka: Ukugcinwa kakuhle kwamanzi kunokwenza inkqubo yokuqina kodaka ifane ngakumbi, ukunciphisa iintanda ze-shrinkage ezibangelwa ukulahlekelwa kwamanzi amaninzi, kunye nokuphucula ukuxhathisa kokuqhekeka kwemveliso egqityiweyo.
3. Ukwandisa amandla okudibanisa
Ukuphucula ukubambelela phakathi kodaka kunye ne-substrate: I-HPS inokwenza ukunamathela okuqinileyo ngokomzimba kunye neekhemikhali phakathi kodaka kunye ne-substrate (efana nodonga okanye umgangatho). Oku kubangelwa ikakhulu kwinto yokuba i-HPS, kwimeko yayo ye-hydrated, inokuzalisa ii-pores kwi-microstructure yodaka kwaye yandise indawo yoqhagamshelwano, ngaloo ndlela iphucula amandla okudibanisa ngokubanzi.
Ukuphucula ukuxhathisa kwe-chear: Ukuqaliswa kwe-HPS kunokwenza udaka lwenze isakhiwo esixineneyo emva kokunyanga kunye nokwandisa ukuxhathisa ukucheba. Oku kubaluleke kakhulu kwiingxenye zesakhiwo eziphantsi koxinzelelo lwemishini, njengokulungiswa okanye iiprojekthi zokuqinisa, apho amandla okubopha udaka yinto ebalulekileyo ekuqinisekiseni ukhuseleko lwesakhiwo.
4. Ukuphucula ukuxhathisa kokuqhekeka
Ukunciphisa i-shrinkage cracks: I-HPS inciphisa umngcipheko wokuqhekeka kwe-shrinkage ngokuphucula ukugcinwa kwamanzi kwi-mortar kunye nokunciphisa i-shrinkage ebangelwa yi-evaporation yamanzi. Ukongeza, i-network structure eyenziwe yi-HPS kwi-mortar ikwanceda ukufunxa kunye nokusabalalisa uxinzelelo, ukunciphisa ukwenzeka kweentanda.
Ukomeleza ukuqina kodaka: Ubukho be-HPS bunika udaka amandla angcono okuguqula kwaye kunokumelana ngempumelelo notshintsho kubushushu obuphakathi kunye nokukhubazeka okuncinci kwezinto ezisisiseko. Oku kuqina kwenza ukuba udaka lungabi lula ukuqhekeka xa luphantsi kwamandla angaphandle, ngaloo ndlela luphucula ukuqina kodaka.
5. Olunye uphuculo lweempawu
Ukuphucula ukuxhathisa kokunyibilika komkhenkce: I-HPS iphucula ukuxinana kunye nokufana kodaka kwaye inciphisa i-porosity ngaphakathi kodaka, enefuthe elihle ekwandiseni ukuxhathisa ukunyibilika kodaka. Le propati ibaluleke kakhulu kwiindawo eziphantsi kweqondo lokushisa kwaye inceda ukwandisa ubomi benkonzo yodaka kwiindawo ezibandayo.
Ukuphuculwa kokumelana nokunxiba: Enkosi kwi-microstructure ephuculweyo ye-HPS, ukuqina komphezulu kunye nokuxinana kodaka kuyaphuculwa, okuwuvumela ukuba ubonise ukumelana nokunxiba okungcono. Oku kubaluleke kakhulu kwii-screeds zomgangatho ezixhomekeke kwi-friction rhoqo kunye nokugqoka.
Ukusetyenziswa kwe-hydroxypropyl starch ether kumdaka kuphucula kakhulu iimpawu zayo ze-rheological, ukugcinwa kwamanzi, amandla ebhondi kunye nokumelana nokuqhekeka, ngaloo ndlela kuphuculwe ukusebenza kokwakhiwa kunye nokuqina kodaka. Kulwakhiwo lwangoku, ukusetyenziswa kwe-HPS kuye kwaba yenye yeendlela ezibalulekileyo zokwandisa ukusebenza kodaka, obaluleke kakhulu ekuphuculeni umgangatho kunye nobomi bezinto zokwakha.
Ixesha lokuposa: Jul-05-2024