Iimveliso ezisekelwe kwi-Gypsum zibalulekile kulwakhiwo kunye nosetyenziso lwemizi-mveliso ngenxa yeepropathi zazo eziguquguqukayo. Ukuphucula iimpawu zabo zokusebenza ezifana nokuqhubekeka kunye nokusasazeka kubalulekile ekusebenzeni kakuhle kunye nomgangatho. Enye indlela esebenzayo yokuphumeza olu phuculo kukudityaniswa kwe-starch ethers. Ezi startshi eziguquliweyo zidlala indima ebalulekileyo ekwandiseni ukusebenza kakuhle kwe-gypsum plasters, ibonelela ngeenzuzo ezininzi ngokwemigaqo yerheology, adhesion, kunye nokuzinza.
Iipropati zeMichiza kunye neNdlela yokuSebenza
Isitatshi se-ethers ziphuma kwisitatshi sendalo esiye satshintshwa ngokwekhemikhali ukwazisa amakhonkco e-ether. Ukuguqulwa okuqhelekileyo kubandakanya i-hydroxypropylation, i-carboxymethylation, kunye ne-cationization, okubangelwa i-hydroxypropyl starch ether (HPS), i-carboxymethyl starch ether (CMS), kunye ne-cationic starch ether (CSE), ngokulandelanayo. Olu hlengahlengiso luguqula izinto ezibonakalayo kunye neekhemikhali zesitashi, ziphucula ukuhambelana kwayo negypsum kunye nokukwazi ukuguqula iimpawu ze-rheological zomxube.
Ulawulo lweRheological: Isitashi se-ethers sichaphazela kakhulu i-rheology yeemveliso ezisekelwe kwi-gypsum. Ngokusebenzisana namanzi, i-starch ethers idumba kwaye yenze inethiwekhi efana ne-gel. Le nethiwekhi yandisa i-viscosity yomxube, ukuthintela ukuhlukana kwamacandelo kunye nokugcina ukuhambelana okufanayo. I-viscosity eyandisiweyo iphucula ukusebenza kwe-gypsum plasters, okwenza kube lula ukuxuba, ukufaka, kunye nokugudiswa. Olu lawulo lwe-viscosity lukwavumela ukuphathwa kakuhle kwaye kunciphisa ukuthoba kunye nokuvuza ngexesha lokufaka isicelo.
Ukugcinwa kwamanzi: Isitatshi ethers siphucula ukugcinwa kwamanzi kwimixube yegypsum. Benza umqobo onciphisa ukukhuphuka kwamanzi, ukubonelela ixesha elingakumbi lokuba i-plaster ibekwe ngokufanelekileyo. Ukugcinwa kwamanzi okuphuculweyo kuqinisekisa i-hydration eyaneleyo ye-crystals ye-gypsum, ekhokelela kwimveliso eyomeleleyo kunye neyomelele ngakumbi. Oku kubaluleke ngakumbi kwiindawo ezishushu okanye ezomileyo apho ukulahleka kwamanzi okukhawulezayo kunokuphazamisa ingqibelelo yodaka.
Ukuphuculwa kwe-Adhesion kunye nokuBambana: Ubukho be-starch ethers buphucula ukudibanisa kwe-gypsum plasters kwi-substrates kunye nokuphucula ukudibanisa kwe-plaster ngokwayo. Oku kuphunyezwa ngokuqulunqwa kweebhondi ze-hydrogen phakathi kweamolekyu zesitashi kunye ne-gypsum particles, ukudala i-matrix eqinile kwaye edibeneyo. Ukubambelela okuphuculweyo kuqinisekisa ukuba i-plaster ihlala ibambelele ngokuqinileyo kwiindawo eziphezulu, ngelixa ukudibanisa okuphuculweyo kuthintela ukuqhekeka kunye nokuphucula ukuqina okupheleleyo kwe-plaster.
IiNzuzo eziSebenzayo kwiiMveliso eziSekwe kwiGypsum
Ukudityaniswa kwee-ethers zesitatshi kwiimveliso ezisekwe kwi-gypsum kuguqulela kwiinzuzo ezininzi ezisebenzayo kulwakhiwo kunye nosetyenziso lwemizi-mveliso.
Ukuphuculwa kokuSebenza: Iipropati eziphuculweyo ze-rheological zithetha ukuba i-gypsum plasters exutywe kunye ne-starch ethers kulula ukusebenza nayo. Ziyakwazi ukusasazwa ngakumbi kwaye ngokulinganayo, ukunciphisa umgudu ofunekayo ngexesha lokufaka isicelo. Oku kusebenza kwandisiweyo kuluncedo ngakumbi kwiiprojekthi zolwakhiwo olukhulu apho ukusebenza ngokufanelekileyo kunye nokusebenziseka ngokulula kubaluleke kakhulu.
Ixesha Elivuliweyo Elongeziweyo: Iipropati eziphuculweyo zokugcina amanzi e-starch ethers zandisa ixesha elivulekileyo le-gypsum plasters. Ixesha lokuvula libhekisa kwixesha apho udaka luhlala lusebenza phambi kokuba luqalise ukuseta. Ixesha elivulekileyo elide livumela abasebenzi ukuba benze uhlengahlengiso kunye nezilungiso ngaphandle kokubeka udaka kwangaphambi kwexesha. Oku bhetyebhetye kubalulekile ekufezekiseni umgangatho ophezulu, ngakumbi kumsebenzi ontsonkothileyo okanye oneenkcukacha.
I-Shrinkage eNcitshiswayo kunye ne-Cracking: Ukugcinwa kwamanzi okuphuculweyo kunye nokuphucula ukubambelela kunciphisa umngcipheko wokunciphisa kunye nokuqhekeka kwimveliso yokugqibela. Ii-ethers zesitatshi zinceda ukugcina ukulingana kokufuma ngaphakathi kodaka, iqinisekisa inkqubo yokoma efanayo. Oku kukhokelela kwindawo ezinzileyo kunye ne-crack-resistant-resistant, eyimfuneko kubo bobabini ubuhle kunye nokunyaniseka kwesakhiwo.
Iinzuzo zokusiNgqongileyo: Isitatshi seethers sithathwe kwimithombo ehlaziyekayo, nto leyo ebenza ukuba ibe sisongezo esinobuhlobo nokusingqongileyo. Ukusetyenziswa kwabo kwiimveliso ezisekelwe kwi-gypsum kunokunciphisa ukuthembela kwiipolymers zokwenziwa kunye nezinye izongezo ezingenakuhlaziywa. Oku kuhambelana nemfuno ekhulayo yezinto zokwakha ezizinzileyo kunye nezenzo.
Usetyenziso kwiiMveliso ezahlukeneyo eziSekwe kwiGypsum
Isitashi se-ethers sifumana ukusetyenziswa kwiimveliso ezahlukeneyo ezisekwe kwigypsum, nganye ixhamla kwinkqubo ephuculweyo kunye nokusasazeka ababonelela ngako.
IiPlasta zeGypsum: Kwiindonga ezisemgangathweni kunye ne-plaster plasters, i-starch ethers iphucula ukukhululeka kwesicelo kunye nokugqiba umgangatho. Banceda ukufezekisa ukugudiswa, kunye neendawo ezineziphene ezincinci, ukunciphisa isidingo somsebenzi owongezelelweyo wokugqiba.
Iikhompawundi ezidityanisiweyo: Kwizinto ezidityanisiweyo ezisetyenziselwa ukutywina i-drywall seams, i-starch ethers iphucula ukusasazeka kunye nokubambelela, iqinisekisa ukugqitywa komthungo kunye nokuqina. Bakwaphucula ukukhululeka kwesanti emva kokuba ikhompawundi yomile, okukhokelela kumphezulu ogudileyo wokugqibela.
IiCompounds zokuzilinganisa: Kwimidibaniso yomgangatho wokuzilinganisa, i-starch ethers inegalelo ekuhambeni kunye neempawu zokulinganisa, ziqinisekisa ukuba flat kunye nomhlaba. Amandla abo okugcina amanzi athintela ukomiswa kwangaphambi kwexesha kunye nokuqinisekisa ukunyanga okufanelekileyo, okubangelwa umgangatho oqinileyo kunye nozinzile.
Iibhodi ze-Gypsum: Kwiibhodi ze-gypsum, i-starch ethers iphucula ukunamathela phakathi kwesiseko se-gypsum kunye nephepha lephepha, ukuphucula amandla ebhodi kunye nokuzinza. Oku kubalulekile ekugcineni ukuthembeka kwesakhiwo seebhodi ngexesha lokuphatha kunye nofakelo.
Isitatshi se-ethers simele ukuqhubela phambili okubonakalayo ekuqulunqweni kweemveliso ezisekwe kwigypsum, ezibonelela ngenkqubo ephuculweyo kunye nokusasazeka. Ukukwazi kwabo ukulawula i-rheology, ukuphucula ukugcinwa kwamanzi, kunye nokuphucula ukunamathela kuguqulela kwiinzuzo ezisebenzayo ezifana nesicelo esilula, ixesha elivulekileyo elongezelelweyo, ukunciphisa ukucutheka kunye nokuqhekeka, kunye nokuphucula ukuqina. Njengoko ishishini lokwakha liqhubeleka nokuguqukela kwiindlela ezisebenzayo nezizinzileyo, ukusetyenziswa kwesitatshi se-ethers kwiimveliso ezisekwe kwigypsum kuya kubaluleka kakhulu, kube negalelo kumgangatho ophezulu kunye nezixhobo zokwakha ezihambelana nokusingqongileyo.
Ixesha lokuposa: Jun-03-2024