IHydroxypropyl methylcellulose (HPMC)i-ether ye-cellulose engeyiyo i-ionic esetyenziswa ngokubanzi kwizinto zokwakha, ngakumbi ekuqulunqweni kwezinto ezisekelwe kwi-samente. Imisebenzi yayo ephambili ibandakanya ukuphucula ukugcinwa kwamanzi, ukuqina kunye nokwakhiwa kwezinto eziphathekayo kunye nokuphucula iimpawu zomatshini wezinto eziphathekayo.
1. Ukuphuculwa kokugcinwa kwamanzi
I-HPMC ineempawu ezibalaseleyo zokugcina amanzi. Kwizinto ezisekwe kwisamente, ukulahleka kwamanzi kwangaphambi kwexesha kunokuchaphazela ukusabela kwe-hydration yesamente, okukhokelela kumandla angonelanga kwangoko, ukuqhekeka, kunye nezinye iingxaki zomgangatho. I-HPMC inokuthintela ngokufanelekileyo ukuphuma kokufuma ngokwenza ifilimu yepolymer eshinyeneyo ngaphakathi kwemathiriyeli, ngaloo ndlela yandisa ixesha lokuphendula ngesamente. Lo msebenzi wokugcinwa kwamanzi kubaluleke kakhulu kwiqondo lokushisa eliphezulu okanye kwiindawo ezomileyo, kwaye unokuphucula kakhulu umgangatho wokwakhiwa nokugcinwa kodaka, ikhonkrithi kunye nezinye izinto.
2. Ukuphucula ukwakhiwa kunye nokusebenza
I-HPMC sisityebi esisebenzayo. Ukongeza inani elincinci le-HPMC kwizinto ezisekelwe kwisamente kunokunyusa kakhulu i-viscosity yezinto. Ukutyebisa kunceda ukuthintela udaka ukuba lungcungcuthekiswe, lungcungcuthekiswe okanye luphume igazi ngexesha lokufakwa kwesicelo, ngelixa lusenza ukuba izinto zibe lula ukusasazeka kunye nenqanaba. Ukongeza, i-HPMC inika i-adhesion enamandla, iphucula ukunamathela kodaka kwizinto ezisisiseko, kwaye inciphisa inkunkuma yezinto eziphathekayo ngexesha lokwakha kunye nomsebenzi wokulungisa olandelayo.
3. Ukomelezwa kokumelana neecrack
Izinto ezisekelwe kwi-cement zixhomekeke ekuqhekekeni ngenxa yokunyuka kwamanzi kunye nokunciphisa umthamo ngexesha lenkqubo yokuqina. Iipropati zokugcina amanzi ze-HPMC zinokunweba isigaba seplastiki sezinto eziphathekayo kunye nokunciphisa umngcipheko wokuqhekeka kwe-shrinkage. Ukongezelela, i-HPMC isasaza ngokufanelekileyo uxinzelelo lwangaphakathi ngokunyusa amandla okudibanisa kunye nokuguquguquka kwezinto eziphathekayo, ukunciphisa ngakumbi ukwenzeka kweentanda. Oku kubaluleke kakhulu kwiintsiba ezinomaleko obhityileyo kunye nezixhobo zomgangatho oziphakamisayo.
4. Ukuphucula ukuqina kunye nokumelana nokunyibilika komkhenkce
HPMCinokuphucula ubuninzi bezinto ezisekelwe kwi-samente kunye nokunciphisa i-porosity, ngaloo ndlela iphucula ukunganyangeki kwezinto kunye nokumelana nokubola kweekhemikhali. Kwiindawo ezibandayo, ukuxhatshazwa kwe-freeze-thaw yezinto eziphathekayo kuhambelana ngqo nobomi babo benkonzo. I-HPMC icotha umonakalo wezinto ezisekelwe kwisamente ngexesha lemijikelo yokunyibilika komkhenkce kwaye iphucula ukuqina kwayo ngokugcina amanzi kunye nokuphucula amandla okudibanisa.
5. Ukuphucula iimpawu zoomatshini
Nangona umsebenzi ophambili we-HPMC ayikokwandisa ngokuthe ngqo amandla, iphucula ngokungathanga ngqo iipropathi zemishini yezinto ezisekelwe kwisamente. Ngokwandisa ukugcinwa kwamanzi kunye nokusebenza kakuhle, i-HPMC ifaka i-samente ngokupheleleyo ngakumbi kwaye yenza isakhiwo semveliso ye-denser hydration, ngaloo ndlela iphucula amandla oxinzelelo kunye namandla okuguquguquka. Ukongezelela, ukusebenza kakuhle kunye neepropati ezidibeneyo zokubambisana zinceda ukunciphisa iziphene zokwakha, ngaloo ndlela kuphuculwe ngokubanzi ukusebenza kwesakhiwo sezinto eziphathekayo.
6. Imizekelo yokusetyenziswa
I-HPMC isetyenziswa ngokubanzi kwi-masonry mortar, udaka lokutyabeka, i-self-leveling mortar, i-adhesive tile kunye nezinye iimveliso kwiiprojekthi zokwakha. Ngokomzekelo, ukongeza i-HPMC kwi-adhesive tile ye-ceramic inokuphucula kakhulu amandla okudibanisa kunye nexesha lokuvula ukwakhiwa; ukongeza i-HPMC kudaka lokutyabeka kunokunciphisa ukopha kunye nokudodobala, kunye nokuphucula isiphumo sokutyabeka kunye nokumelana nokuqhekeka.
IHydroxypropyl methylcelluloseinokuphucula ukusebenza kwezinto ezisekelwe kwisamente kwiinkalo ezininzi. Ukugcinwa kwayo kwamanzi, ukuqina, ukumelana nokuqhekeka kunye nokuqina kwayo kuye kwaphucula kakhulu umgangatho wokwakha kunye nokusebenza kwezinto ezisekelwe kwisamente. Oku akuncedi nje ukuphucula umgangatho weprojekthi, kodwa kunciphisa iindleko zokwakha nokugcina. Kwixesha elizayo, ngophuhliso lobugcisa bezinto zokwakha, amathuba okusetyenziswa kwe-HPMC aya kuba abanzi.
Ixesha lokuposa: Nov-21-2024