I-Hydroxypropyl methylcellulose (HPMC) yinto eyongezelelweyo ephezulu yokusebenza esetyenziswa ngokubanzi kwizinto zokwakha, ngakumbi kwimveliso ye-gypsum-based plasters kunye neemveliso zegypsum.
(1) Iipropati ezisisiseko ze-HPMC
I-HPMC yi-ether ye-cellulose ye-nonionic efunyenwe nge-methylation kunye ne-hydroxypropylation reactions. Iimpawu zayo eziphambili ziquka ukunyibilika kwamanzi aphezulu, iipropati ezigqwesileyo zokujiya, iipropati ezizinzileyo zeekhemikhali kunye neempawu ezintle zokwenza ifilimu. Ezi propati zenza i-HPMC isetyenziswe ngokubanzi kwizinto zokwakha.
(2) Ukusetyenziswa kweHPMC kudaka olusekwe kwigypsum
1. Umsebenzi wearhente yokutyebisa
Kwi-gypsum-based plaster, i-HPMC isetyenziswa kakhulu njenge-agent agent. Ukunyibilika kwayo okuhle kwamanzi kunye neempawu ezityebileyo kunokuphucula kakhulu i-viscosity kunye nokuzinza kwe-stucco, kuthintele i-delamination kunye nemvula, ngaloo ndlela kuphuculwe ukusebenza kolwakhiwo kunye nomgangatho wemveliso ogqityiweyo.
2. Ukugcinwa kwamanzi
I-HPMC inokugcinwa kwamanzi okugqwesileyo kwaye inokunciphisa ngokusebenzayo ilahleko ekhawulezayo yamanzi. Kwiiplastikhi ezisekelwe kwi-gypsum, le propati inceda ukwandisa ukusebenza kunye nokuphucula iziphumo zokwakha ngelixa ukhusela ukuqhekeka kunye nokunciphisa okubangelwa ukukhuphuka kwamanzi ngokukhawuleza.
3. Ukuphucula ukubambelela
I-HPMC inokuphucula ukunamathela phakathi kodaka kunye ne-substrate. Oku kungenxa yokuba ifilimu eyenziwe yi-HPMC emva kokumisa inomlinganiselo othile wokuguquguquka kunye nokubambelela, ngaloo ndlela iphucula amandla okudibanisa phakathi kwe-plaster kunye nodonga okanye ezinye ii-substrates kunye nokuthintela ukuba ziwe.
(3) Ukusetyenziswa kweHPMC kwiimveliso zegypsum
1. Ukuphucula ukusebenza komsebenzi
Kwimveliso yeemveliso zegypsum, i-HPMC inokuphucula ubumanzi kunye nokufana kwe-slurry, ukunciphisa ukuveliswa kwamaqamza, kwaye wenze imveliso ibe nzima kwaye ifane. Kwangaxeshanye, isiphumo ukutyeba of HPMC inceda ukwenza ukutyabeka agudileyo kumphezulu imveliso kunye nokuphucula umgangatho imbonakalo imveliso.
2. Ukuphucula ukuxhathisa kokuqhekeka
Ukugcinwa kwamanzi kwe-HPMC kwiimveliso ze-gypsum kunceda ukulawula izinga lokukhululwa kwamanzi kunye nokunciphisa uxinzelelo lwangaphakathi olubangelwa ukuguquka kwamanzi okungalinganiyo, ngaloo ndlela kuphuculwe ukuxhathisa kokuqhekeka kunye namandla onke emveliso. Ngokukodwa kwiindawo ezomileyo, umphumo wokugcina amanzi we-HPMC ubaluleke kakhulu kwaye unokuthintela ngokufanelekileyo ukuqhekeka kwangaphambili kweemveliso.
3. Ukuphucula iimpawu zoomatshini
Inethiwekhi yefayibha esabiwe ngokulinganayo eyenziwe yi-HPMC kwiimveliso zegypsum inokuphucula ukuqina kunye nefuthe lokumelana neemveliso. Eli nqaku lenza iimveliso ze-gypsum zingaphantsi komonakalo ngexesha lokuthutha kunye nokufakwa, ukwandisa ubomi babo benkonzo.
(4) Izibonelelo zokusetyenziswa kwe-HPMC
1. Ukuphucula ukusebenza kakuhle kolwakhiwo
Ngenxa yokuba i-HPMC iphucula ukusebenza kunye nokusebenza kokwakhiwa kwe-gypsum-based plaster kunye neemveliso zegypsum, inkqubo yokwakha ihamba kakuhle kwaye isebenze ngakumbi, inciphisa inani lezinto ezihlaziyiweyo kunye nokulungiswa, ngaloo ndlela kuphuculwe ukusebenza kakuhle kolwakhiwo jikelele.
2. Ukhuseleko lokusingqongileyo kunye nokhuseleko
Njengezinto zemvelaphi yendalo, i-HPMC ayivelisi izinto ezinobungozi ngexesha lemveliso kunye nokusetyenziswa kwayo, kwaye ihlangabezana neemfuno zokhuseleko lokusingqongileyo kunye nokhuseleko. Ukongeza, i-HPMC ayikhuphi iigesi ezinobungozi ngexesha lokusetyenziswa, iyenza ikhuseleke kubasebenzi bokwakha kunye nabasebenzisi bokugqibela.
3. Iinzuzo zoqoqosho
Ukusetyenziswa kwe-HPMC kunokuphucula kakhulu ukusebenza kunye nomgangatho wezinto ezisekelwe kwi-gypsum, ngaloo ndlela kuncitshiswa inkunkuma yezinto eziphathekayo kunye neendleko zokuphinda kusebenze kunye nokuphucula izibonelelo zoqoqosho. Kwangaxeshanye, ukusebenza kakuhle okuphezulu kwe-HPMC kwenza ukuba iziphumo ezibalulekileyo ziphunyezwe nangomlinganiselo omncinci wokongezwa, kwaye unomsebenzi omhle weendleko.
Njengesongezo sezinto zokwakha ezibalulekileyo, i-HPMC ineenzuzo ezibalulekileyo kwisicelo sayo kwi-gypsum-based plaster kunye neemveliso zegypsum. Ukuqina kwayo okugqwesileyo, ukugcinwa kwamanzi kunye neempawu zokubambisana aziphuculi nje kuphela ukusebenza kokwakhiwa kwezinto kunye nomgangatho wemveliso egqityiweyo, kodwa nokuphucula inzuzo yezoqoqosho kunye nokusebenza kokusingqongileyo. Njengoko imfuno yoshishino lolwakhiwo yokusebenza okuphezulu, izinto ezihambelana nokusingqongileyo zinyuka, amathuba okusetyenziswa kwe-HPMC kwizinto ezisekelwe kwi-gypsum aya kuba banzi ngakumbi.
Ixesha lokuposa: Jul-25-2024