I-Hydroxypropyl methylcellulose (i-HPMC) yinto eyongezelelweyo ephezulu yokusebenza esetyenziswa ngokubanzi kwizinto zokwakha, ngakumbi ekuqulunqweni kodaka kunye ne-plasters. I-HPMC yi-nonionic, i-ether cellulose enyibilikayo emanzini eyenziwe kwiselulosi yendalo eguqulwe ngokwekhemikhali. Inokuqina okugqwesileyo, ukugcinwa kwamanzi, i-lubricating kunye ne-film-forming properties, edlala indima ephambili ekuphuculeni ukusebenza, iimpawu zomatshini kunye nokuqina kodaka kunye ne-plasters.
1. Ukuphuculwa kokugcinwa kwamanzi
Enye yezona ziphumo ziphawuleka kakhulu ze-HPMC ziipropati zayo ezibalaseleyo zokugcina amanzi. Kwiidaka kunye ne-plasters, i-HPMC inciphisa kakhulu isantya apho amanzi aphuphuma khona, ukwandisa ixesha elivulekileyo lodaka kunye ne-plasters. Le propati ibaluleke kakhulu kulwakhiwo kuba iqinisekisa ukuba iidaka kunye ne-plasters zinexesha elaneleyo lokusebenza ngexesha lokubeka, ukuphepha ukuqhekeka kunye nokudibanisa kakubi okubangelwa ukomisa kwangaphambili. Ukongezelela, ukugcinwa kwamanzi kuqinisekisa ukuthuthwa okwaneleyo kwe-samente, ngaloo ndlela kwandisa amandla okugqibela omdaka kunye ne-plasters.
2. Ukuphuculwa komsebenzi wokwakha
I-HPMC iphucula kakhulu ukusebenza kodaka kunye neeplasta. Ngenxa yesiphumo sayo esityebileyo, i-HPMC inokuphucula i-viscosity yodaka, iyenze kube lula ukuyifaka kunye nokusebenzisa. Oku kubaluleke ngakumbi kulwakhiwo lwamadonga kunye nesilingi, njengoko i-HPMC isenza udaka kunye nesamente zixhathise ngakumbi ekuhengeni, inciphisa umngcipheko wokuwohloka. Ukongeza, isiphumo sokuthambisa se-HPMC sinokuphucula ukunyibilika kodaka kwaye sisasaze ngokulinganayo kwizixhobo zokwakha, ngaloo ndlela kuphuculwe ukusebenza kakuhle kolwakhiwo kunye nomgangatho womphezulu.
3. Ukwandisa ukunamathela
I-HPMC iphucula ukuncamathelwa kodaka kunye neeplasta, ngakumbi kwi-inorganic substrates ezifana nezitena, ikhonkrithi kunye nomphezulu wamatye. I-HPMC iphucula amandla ezinto ezisekwe kwisamente ngokunyusa umthamo wokugcinwa kwamanzi kudaka kunye nokwandisa ixesha lokusabela kwesamente. Kwangaxeshanye, ifilimu eyenziwe yi-HPMC inokwandisa amandla okudibanisa ujongano phakathi kodaka kunye nesiseko sezinto, ukuthintela udaka ukuba ungawi okanye uqhekeke.
4. Ukuphucula ukuxhathisa kokuqhekeka
Ukongeza i-HPMC kwiidaka kunye ne-plasters kunokuphucula kakhulu ukuxhathisa ukuqhekeka kwabo. Ngenxa yogcino lwamanzi olugqwesileyo kunye neepropathi ezityebileyo ze-HPMC, udaka lunokuhlala lumanzi ixesha elide ngexesha lokumisa, ukunciphisa i-plastic shrinkage kunye ne-shrinkage eyomileyo yokuqhekeka okubangelwa ukulahlekelwa kwamanzi amaninzi. Ukongeza, isakhiwo esihle esakhiwe yi-HPMC sinokusasaza ngokufanelekileyo uxinzelelo, ngokunciphisa ukwenzeka kweentanda.
5. Phucula ukumelana nokunyibilika komkhenkce
I-HPMC ikwaphucula ukuxhathisa ukunyibilika komkhenkce kwiidaka kunye neeplasta. Ugcino lwamanzi lwe-HPMC luvumela ukwabiwa kokufuma ngaphakathi kodaka kunye ne-plasters, ukunciphisa umonakalo owenziwe ngumkhenkce obangelwa kugxininiso lokufuma. Ukongezelela, ifilimu ekhuselayo eyenziwe yi-HPMC inokuthintela ukungena komswakama wangaphandle, ngaloo ndlela inciphisa umonakalo kwizinto ezibangelwa yimijikelezo ye-freeze-thaw kunye nokwandisa ubomi benkonzo yodaka kunye ne-plasters.
6. Ukwandisa ukumelana nokunxiba
I-HPMC ikwaphucula ukuxhathisa ukunxitywa kodaka kunye neeplasta. Ngokwandisa amandla okubopha kunye nokuxinana kwesakhiwo sodaka, i-HPMC yenza umphezulu wezinto zomelele, ukunciphisa amandla okunxiba kunye nokuxobula. Oku kubaluleke kakhulu kwimigangatho yodaka kunye neplastikhi eludongeni yangaphandle, njengoko ezi ndawo zihlala ziphantsi koxinzelelo olukhulu lomatshini.
7. Ukuphucula ukungakwazi ukungena
I-HPMC nayo inefuthe elihle kwi-impermeability yodaka kunye ne-plasters. Iimpawu zokwenza ifilimu ye-HPMC zenza umqobo osebenzayo wokungangeni manzi kwindawo yodaka kunye ne-stucco, ukunciphisa ukungena komswakama. Kwangaxeshanye, i-HPMC iphucula ukuxinana kwezinto, inciphisa iipores zangaphakathi, ngaloo ndlela iphucula ngakumbi ukusebenza kokunganyangeki. Oku kubaluleke kakhulu kulwakhiwo lokuthintela amanzi kunye neemfuno zokuqinisekisa ukufuma.
8. Yandisa iiyure zokuvula
Ixesha lokuvula libhekisa kwixesha apho udaka okanye istucco sihlala sikwimeko esebenzayo. I-HPMC inokwandisa ngokufanelekileyo ixesha lokuvula ngokusebenzisa iipropati zayo zokugcina amanzi, ebaluleke kakhulu xa kusakha iindawo ezinkulu okanye ukusebenza kwiqondo lokushisa eliphezulu kunye neendawo ezomileyo. Ixesha lokuvula elongeziweyo alinyusi nje ukuguquguquka kolwakhiwo kodwa likwanciphisa iziphene zokwakha ezibangelwa udaka okanye udaka lomiswe ngokukhawuleza.
Ukusetyenziswa kwe-HPMC kwi-mortars kunye ne-plasters inika ukuphuculwa okubalulekileyo kwiipropati ezininzi zezi zinto. Ngokwandisa ukugcinwa kwamanzi, ukuphucula ukusebenza kolwakhiwo, ukwandisa ukunamathela, ukunyusa ukuchaneka kunye ne-freeze-thaw resistance, kunye nokuphucula i-abrasion kunye nokungabi namanzi, i-HPMC ibonelela ngesisombululo esithembekileyo kunye nesigxina sezinto zokwakha zanamhlanje. Olu phuculo lwentsebenzo alugcini nje ukwenza ulwakhiwo lube lula kwaye lusebenze, kodwa luqinisekisa ukuqina kwexesha elide kunye nokuzinza kwesakhiwo phantsi kweemeko ezahlukeneyo zokusingqongileyo. Ke ngoko, i-HPMC iye yaba sisithako esibalulekileyo kunye nesibalulekileyo kwimiqulu yodaka kunye ne-stucco.
Ixesha lokuposa: Sep-03-2024