IHydroxypropyl methylcellulose (HPMC) sisongezo esisetyenziswa ngokubanzi kwizinto zokwakha, ngakumbi kwiimveliso ze-plaster series. Ubume bayo beekhemikhali bunika ukunyibilika kwamanzi okugqwesileyo, ukulungiswa kwe-viscosity kunye nomsebenzi womphezulu, ngaloo ndlela udlala indima ebalulekileyo kwi-stucco plaster.
1. Iipropati ezityebileyo kunye nokudibanisa
Njenge-thickener, i-HPMC inokunyusa kakhulu ukuhambelana kunye ne-viscosity yodaka. Eli nqaku livumela i-gypsum slurry ukuba igubungele ngokulinganayo umphezulu we-substrate ngexesha lenkqubo yokwakha kwaye ithintele ngokufanelekileyo i-sagging. Ukongeza, iipropathi zokudibanisa ze-HPMC zinceda ukuqinisa amandla okudibanisa phakathi kwe-gypsum kunye nezinto eziphantsi, ukuqinisekisa ukuzinza kunye nokuqina komgangatho womhlaba emva kokwakhiwa. Oku kubaluleke kakhulu kwizicelo kwimigangatho ethe nkqo nephezulu efana neendonga kunye nesilingi.
2. Ukugcinwa kwamanzi
Ugcino lwamanzi ngomnye umsebenzi ongundoqo we-HPMC kwi-stucco plaster. Ekubeni izinto ze-gypsum zifuna ukuphendulwa kwe-hydration ngexesha lokwakhiwa, ukulahleka kwamanzi ngokukhawuleza kuya kubangela ukuqina okunganeleyo kwezinto, ngaloo ndlela kuchaphazela amandla kunye nokuqina. I-HPMC inokugcina ngokufanelekileyo ukufuma kunye nokulibazisa izinga lokunyuka kwamanzi, ukuze i-gypsum ifumane ukufuma okwaneleyo ngexesha lenkqubo yokwakha kunye nenqanaba lokuqala lokuqina. Oku akuncedi nje ukuphucula ukusebenza kokwakhiwa, kodwa kwakhona kuphucula umgangatho womgangatho wemveliso egqityiweyo kunye nokunciphisa ukwenzeka kweentanda.
3. Ukuphucula ukusebenza kolwakhiwo
Ukongezwa kwe-HPMC kunokuphucula kakhulu ukusebenza kokwakhiwa kwe-stucco gypsum. Okokuqala, inokuphucula i-lubricity ye-slurry, yenza i-gypsum isilayidi ngokukhawuleza kwizixhobo zokwakha kunye nokuphucula ukusebenza kakuhle kokwakhiwa. Okwesibini, i-HPMC inokulungelelanisa i-rheology ye-slurry, yenza kube lula ukusasazeka kunye nenqanaba, ngokunciphisa ixesha lokwakha kunye negalelo labasebenzi. Ukongeza, ngenxa yokuba i-HPMC iphucula ukunamathela kwe-gypsum slurry, inkunkuma yezinto eziphathekayo iyancitshiswa ngexesha lenkqubo yokwakha, ebaluleke kakhulu ekugcinweni kweendleko.
4. Yandisa ukuxhathisa kokuqhekeka
Ekwakhiweni kwesakhiwo, ukuqhekeka kuyingxaki ebalulekileyo echaphazela ukubonakala kunye nokunyaniseka kwesakhiwo. Ukugcinwa kwamanzi kunye neepropati ezityebileyo ze-HPMC zinokunciphisa ngokufanelekileyo ukwenzeka kweentanda. Ngokwandisa i-viscosity kunye nokuqina kwe-gypsum, i-HPMC inokunciphisa izinga lokunciphisa i-slurry kunye nokunciphisa uxinzelelo lwe-shrinkage, ngaloo ndlela inciphisa ukubunjwa kweentanda. Ukongeza, i-HPMC inokuphucula ukuqina kwegypsum ukuze ikwazi ukuphendula ngcono kutshintsho kwimeko yangaphandle, njengokuguquguquka kweqondo lobushushu kunye nokufuma, ngaloo ndlela iphucula ngakumbi ukuqina kwemigangatho yokwakha.
5. Gqoka ukuxhathisa kunye nokuguda kwendawo
Ukusetyenziswa kwe-HPMC kunokuphucula ukumelana nokunxiba kunye nokuguda komphezulu we-stucco gypsum. Ukwakhiwa kwefilimu eyenziwe yi-HPMC kwi-slurry inokunyusa ukuqina kunye nokuxhatshazwa kwe-gypsum, okwenza ubuso bayo bomelele. Kwangaxeshanye, ngenxa yokugcinwa kwamanzi kakuhle kunye nefuthe lokuqina, umphezulu we-gypsum uya kuba lula kwaye uthambile emva kokuqina, okubaluleke ngakumbi ekwakheni iindawo ezifuna iziphumo eziphezulu zokuhombisa.
Ukusetyenziswa kwe-hydroxypropyl methylcellulose (HPMC) kwiimveliso ze-stucco gypsum series kuneenzuzo ezibalulekileyo. Ayiphuculi kuphela ukusebenza kunye nokusebenza kakuhle kolwakhiwo, kodwa ikwaphucula kakhulu iipropathi ezibonakalayo kunye ne-aesthetics yemveliso egqityiweyo. I-HPMC ibonelela ngokhetho olongezelelweyo olusebenzayo noluthembekileyo kushishino lwemathiriyeli yokwakha ngokutyeba kwayo okugqwesileyo, ukugcinwa kwamanzi, ukudityaniswa, ukumelana nokuqhekeka kunye nezinye iipropati. Ngophuhliso lweshishini lokwakha kunye nokuqhubela phambili kwezobuchwepheshe, amathuba okusetyenziswa kwe-HPMC kwi-plaster kunye nezinye izinto zokwakha ziya kuba banzi.
Ixesha lokuposa: Aug-12-2024