Iimveliso ezisekelwe kwi-Gypsum, ezifana ne-plaster kunye ne-wallboards, zizinto ezisisiseko kwishishini lokwakha. Ukuthandwa kwabo kungenxa yokuguquguquka kwabo, ukusetyenziswa lula, kunye neempawu ezinqwenelekayo ezifana nokuchasana nomlilo kunye nokusebenza kwe-acoustic. Nangona kunjalo, imingeni enxulumene nokugcinwa kwamanzi kunye nexesha lokumisa iyaqhubeka, ichaphazela ukusebenza kwayo kunye nokusetyenziswa kwayo. Uphuculo lwakutsha nje luye lwazisa i-estarch ethers njengezongezo kwi-gypsum formulations, ebonelela ngophuculo olubalulekileyo ekugcinweni kwamanzi kunye namaxesha omisa.
Ukuqonda iStarch Ethers
Isitashi se-ethers sistatshi esilungisiweyo esifunyenwe ngokuzisa amaqela e-ether kwi-molecule ye-starch. Oku kuguqulwa kwandisa ukugcinwa kwamanzi kwestatshi, ukujiya, kunye neempawu zokubopha, nto leyo eyenza ibe yinto efanelekileyo yokudibanisa izinto zokwakha. Isitatshi ether ziveliswa kwimithombo yendalo efana nombona, iitapile, okanye ingqolowa, ukuqinisekisa ukuba zinobuhlobo nokusingqongileyo kwaye zizinzileyo.
Indlela yokwenza
Umsebenzi ophambili we-starch ethers kwiimveliso ezisekelwe kwi-gypsum kukuphucula ukugcinwa kwamanzi. Oku kufezekiswa ngokukwazi kwabo ukwenza iibhondi ze-hydrogen kunye neemolekyuli zamanzi, ukudala inethiwekhi ebamba amanzi ngaphakathi kwe-matrix. Olu nxibelelwano lucotha isantya sokuphuma kwamanzi, luqinisekisa ukuba i-gypsum inexesha elaneleyo lokufaka amanzi kunye nokuseta ngokufanelekileyo. Ukongezelela, i-starch ethers iguqula i-rheological properties ye-gypsum slurry, iphucula ukusebenza kwayo kunye nokusetyenziswa kwayo.
Ukugcinwa kwamanzi
Kwiimveliso ze-gypsum, ukugcinwa kwamanzi okwaneleyo kubalulekile kwi-hydration efanelekileyo ye-calcium sulfate hemihydrate (CaSO4 · 0.5H2O) ukwenza i-calcium sulfate dihydrate (CaSO4 · 2H2O). Le nkqubo ye-hydration ibalulekile kuphuhliso lwamandla omatshini kunye neempawu zokugqibela zemveliso. Isitashi se-ethers, ngokubamba amanzi kwi-matrix, qinisekisa ukuba i-gypsum inokukhupha ngokupheleleyo, okukhokelela kwimveliso yokuphela eyomeleleyo kunye neyomeleleyo.
Ukunciphisa Ixesha Lokomisa
Ngelixa kunokubonakala kungavumelani, ukugcinwa kwamanzi okuphuculweyo okuququzelelwa yi-starch ethers ngokwenene kunegalelo ekunciphiseni ixesha lokumisa ngokubanzi. Oku kungenxa yokuba ukukhutshwa kwamanzi okulawulwayo kuvumela inkqubo efanayo kunye neyokugqibela ye-hydration, ukunciphisa umngcipheko weziphene ezifana nokuqhekeka okanye amabala abuthathaka. Ngenxa yoko, inkqubo yokomisa iyasebenza ngakumbi, ikhokelela kwixesha elikhawulezayo lokumisela.
Izibonelelo zeStarch Ethers kwiiMveliso eziSekwe kwiGypsum
Ukomelezwa kokuSebenza
Isitashi se-ethers siphucula i-rheology ye-gypsum slurries, okwenza kube lula ukuxuba nokusebenzisa. Oku kunenzuzo ngakumbi kwizicelo zokutshiza kwaye xa usebenza ngokubumba okunzima okanye uyilo oluntsonkothileyo. Ukuhambelana okuphuculweyo kunciphisa umgudu ofunekayo wokusebenzisa i-gypsum kwaye iqinisekisa ukugqitywa, ukufana okufanayo.
Iipropati zoomatshini eziphuculweyo
Ngokuqinisekisa ukugcwala okupheleleyo, i-estarch ethers iphucula iipropathi zomatshini zeemveliso ezisekelwe kwigypsum. Izixhobo ezisisiphumo zibonakalisa amandla aphezulu okucinezela kunye nokuqina, ukunamathela okungcono, kunye nokuqina okwandisiweyo. Olu phuculo lwandisa ubomi beemveliso kunye nokuphucula ukusebenza kwazo kwizicelo ezahlukeneyo.
UkuNcitshiswa kokuNciphisa kunye nokunciphisa
Enye yeengxaki eziqhelekileyo kunye neemveliso ze-gypsum ziqhekeza kunye nokunciphisa ngexesha lokumisa. Ii-ethers zesitatshi ziyayithomalalisa le ngxaki ngokugcina amanqanaba alungileyo okufuma kwisigaba sonke sokumisela. Oku kukhutshwa komswakama olawulwayo kunciphisa uxinzelelo lwangaphakathi kwaye kuthintele ukubunjwa kweentanda, okukhokelela ekugqityweni okuzinzile kunye nobuhle obuhle.
Uzinzo
Isitatshi se-ethers zithathwe kwimithombo evuselelekayo, ezenza ukuba zikhetheke ngokusingqongileyo kushishino lokwakha. Ukusetyenziswa kwabo kwiimveliso ze-gypsum akugcini nje ukwandisa ukusebenza kodwa kuhambelana nemfuno ekhulayo yezinto zokwakha ezizinzileyo. Oku kunegalelo kwiindlela zokwakha eziluhlaza kwaye kunciphisa indawo ekhoyo yeeprojekthi zokwakha.
Ukusetyenziswa kwe-Starch Ethers kwiiMveliso eziSekwe kwiGypsum
Iplastikhi
Kwizicelo ze-plaster, i-ethers yesitashi iphucula ukukhululeka kokusabalalisa kunye nokulinganisa, okubangela ukuba kube lula kunye nomgangatho. Ugcino lwamanzi olwandisiweyo luqinisekisa ukuba udaka luhlala lusebenza ixesha elide, lunciphisa inkunkuma kunye nokwandisa ukusebenza kakuhle kwisiza. Ukongeza, ixesha lokumisa elincitshisiweyo livumela ukugqiba ngokukhawuleza kunye nokupeyinta, ukukhawulezisa amaxesha eprojekthi.
Iibhodi zodonga
Iibhodi zodonga ze-Gypsum zixhamla kakhulu ekufakweni kwe-starch ethers. Amandla aphuculweyo kunye nokuqina kuguqula ukuchasana okungcono kwimpembelelo kunye nokunxiba, okuyimfuneko kwiindawo ezinabantu abaninzi. Ixesha lokumisa elicuthiweyo kunye nokusebenza okuphuculweyo kukwaququzelela imijikelo ekhawulezayo yemveliso kunye nofakelo olulula, okwenza iibhodi zodonga zingabizi kakhulu kwaye zisebenziseke.
IiCompounds ezidibeneyo
Kwimixube edibeneyo, i-starch ethers ibonelela ngeempawu ezigqwesileyo zokudibanisa, ziqinisekisa ukuba amalungu angenamthungo kunye nokunciphisa amathuba okuqhekeka kwi-seams. Ukuhambelana okuphuculweyo kunye nokusebenza kwenza isicelo sibe lula, ngelixa ukugcinwa kwamanzi okuphuculweyo kuqinisekisa ibhondi eyomeleleyo kwaye ehlala ixesha elide.
Izifundo zeCase kunye neMizekeliso yeHlabathi yokwenyani
Uphononongo oluninzi luye lwabonisa iingenelo ze-starch ethers kwiimveliso ezisekwe kwigypsum. Umzekelo, iprojekthi yokwakha esebenzisa udaka lwestatshi ether-modified plaster ichaze ukucuthwa kwexesha lokomisa nge-30% kunye nokuncipha okubonakalayo kokuqhekeka xa kuthelekiswa nokwakheka kodaka lwesintu. Olunye uphononongo kwii-wallboards ze-gypsum lubonise ukonyuka kwe-25% kwimpembelelo yokuchasana kunye nokugqiba okugudileyo, okubangelwa ukuphuculwa kwe-hydration kunye nokusebenza okunikezelwa yi-starch ethers.
Imingeni kunye nezikhokelo zexesha elizayo
Ngelixa izibonelelo ze-starch ethers zibhalwe kakuhle, imingeni isahleli ekuphuculeni ukusetyenziswa kwazo kwiindlela ezahlukeneyo zegypsum. Uphando luyaqhuba ukulungisa uxinaniso kunye nodidi lwe-ethers zesitatshi kwizicelo ezahlukeneyo, ukuqinisekisa iinzuzo eziphezulu zokusebenza. Uphuhliso lwexesha elizayo lunokugxila ekwandiseni ukuhambelana kwe-starch ethers kunye nezinye izongezo kunye nokuphonononga imithombo emitsha yestatshi ukwenzela uzinzo olukhulu ngakumbi.
Isitatshi se-ethers simele ukuqhubela phambili okubonakalayo ekuqulunqweni kweemveliso ezisekwe kwigypsum, ezibonelela ngogcino lwamanzi oluphuculweyo kunye nokuncitshiswa kwamaxesha okomisa. Ezi zibonelelo ziguqulela ekusebenzeni okuphuculweyo, iipropathi ezingcono zoomatshini, kunye nokwanda kozinzo. Njengoko ishishini lokwakha liqhubeka nokuvela, ukwamkelwa kwesitatshi se-ethers kwiimveliso zegypsum kunokwenzeka ukuba kukhule, kuqhutywa yimfuneko yezixhobo zokwakha ezisebenzayo, ezihlala ixesha elide, kunye nokusingqongileyo. Ngokusebenzisa iipropathi zendalo ze-starch ethers, ishishini linokufikelela ekusebenzeni okuphezulu kwaye libe negalelo kwiindlela zokwakha ezizinzileyo.
Ixesha lokuposa: Jun-03-2024