Lihlahisoa tse thehiloeng ho Gypsum, tse kang plaster le mabota, ke lisebelisoa tsa bohlokoa indastering ea kaho.Botumo ba bona bo bakoa ke ho feto-fetoha ha tsona, boiketlo ba tšebeliso, le thepa e lakatsehang e kang ho hanyetsa mollo le ts'ebetso ea acoustic.Leha ho le joalo, liphephetso tse amanang le ho boloka metsi le nako ea ho omisa li ntse li tsoela pele, li ama ts'ebetso ea tsona le ts'ebeliso ea tsona.Lintlafatso tsa morao-rao li hlahisitse li-starch ethers joalo ka litlatsetso mefuteng ea gypsum, e fanang ka ntlafatso e kholo nakong ea ho boloka metsi le linako tsa ho omisa.
Ho utloisisa Starch Ethers
Li-starch ethers ke li-starch tse fetotsoeng tse fumanoang ka ho hlahisa lihlopha tsa ether ka har'a molek'hule ea starch.Phetoho ena e ntlafatsa ho boloka metsi ha starch, ho teteana le ho tlama, e leng se etsang hore e be sehlahisoa se loketseng bakeng sa thepa ea kaho.Li-starch ethers li hlahisoa ho tsoa mehloling ea tlhaho joalo ka poone, litapole, kapa koro, ho netefatsa hore ha li na tikoloho ebile li tšoarella.
Mokhoa oa Ts'ebetso
Mosebetsi o ka sehloohong oa li-starch ethers lihlahisoa tse thehiloeng ho gypsum ke ho ntlafatsa ho boloka metsi.Sena se finyelloa ka bokhoni ba bona ba ho theha likamano tsa hydrogen le limolek'hule tsa metsi, ho theha marang-rang a tšoarang metsi ka har'a matrix.Marang-rang ana a liehisa sekhahla sa mouoane, ho etsa bonnete ba hore gypsum e na le nako e lekaneng ea ho nosetsa le ho beha hantle.Ho feta moo, starch ethers e fetola thepa ea rheological ea gypsum slurry, e ntlafatsa ts'ebetso ea eona le ts'ebeliso ea eona.
Polokelo ea Metsi
Ka lihlahisoa tsa gypsum, ho boloka metsi a lekaneng ho bohlokoa bakeng sa hydration e nepahetseng ea calcium sulfate hemihydrate (CaSO4 · 0.5H2O) ho theha calcium sulfate dihydrate (CaSO4 · 2H2O).Ts'ebetso ena ea hydration ke ea bohlokoa bakeng sa nts'etsopele ea matla a mochine le thepa ea ho qetela ea sehlahisoa.Li-starch ethers, ka ho ts'oara metsi ka har'a matrix, li etsa bonnete ba hore gypsum e khona ho nosetsa ka botlalo, e leng se hlahisang sehlahisoa se matla le se tšoarellang.
Phokotso ea Nako ea ho Omisa
Le hoja ho ka 'na ha bonahala e le ntho e sa utloahaleng, ho boloka metsi ho ntlafetseng ho tsamaisoang ke starch ethers ha e le hantle ho tlatsetsa ho fokotsa nako ea ho omisa ka kakaretso.Sena se bakoa ke hore ho lokolloa ha metsi ho laoloang ho lumella hore ho be le mokhoa o ts'oanang le o feletseng oa hydration, ho fokotsa kotsi ea likoli tse kang mapetsong kapa matheba a fokolang.Ka lebaka leo, mokhoa oa ho omisa o sebetsa hantle haholoanyane, o lebisang ho nako e potlakileng ea ho beha nako.
Melemo ea Starch Ether ho Lihlahisoa tse thehiloeng ho Gypsum
Ntlafatso ea ho sebetsa
Li-ethers tsa starch li ntlafatsa rheology ea gypsum slurries, ho etsa hore ho be bonolo ho li kopanya le ho li sebelisa.Sena se na le molemo ka ho khetheha lits'ebetsong tsa spray le ha o sebetsa ka hlobo e rarahaneng kapa meralo e rarahaneng.Ho tsitsa ho ntlafetseng ho fokotsa boikitlaetso bo hlokahalang ho sebelisa gypsum le ho etsa bonnete ba hore ho na le qetello e bonolo, e ts'oanang.
Thepa e Ntlafetseng ea Mechini
Ka ho etsa bonnete ba hore ho na le metsi a feletseng, li-starch ethers li ntlafatsa thepa ea mechine ea lihlahisoa tse entsoeng ka gypsum.Lisebelisoa tse hlahisoang li bonts'a matla a phahameng a ho hatella le ho tsitsipana, ho khomarela hantle, le ho tšoarella ho eketsehileng.Lintlafatso tsena li eketsa nako ea bophelo ba lihlahisoa le ho ntlafatsa ts'ebetso ea tsona lits'ebetsong tse fapaneng.
Ho fokotseha ho Fokotseha le ho Honyela
E 'ngoe ea litaba tse tloaelehileng ka lihlahisoa tsa gypsum ke ho phunyeha le ho fokotseha nakong ea ho omisa.Li-starch ethers li fokotsa bothata bona ka ho boloka maemo a mongobo a nepahetseng nakong eohle ea ho beha.Tokollo ena ea mongobo e laoloang e fokotsa khatello ea maikutlo ka hare 'me e thibela ho thehoa ha mapetsong, e lebisang qetellong e tsitsitseng le e ntle ka ho fetisisa.
Moshoelella
Li-starch ethers li tsoa mehloling e tsosolositsoeng, e leng se etsang hore e be khetho e ntle ea tikoloho bakeng sa indasteri ea kaho.Tšebeliso ea bona lihlahisoa tsa gypsum ha e ntlafatse ts'ebetso feela empa hape e lumellana le tlhokahalo e ntseng e eketseha ea thepa ea moaho e tsitsitseng.Sena se kenya letsoho lits'ebetsong tsa kaho tse tala le ho fokotsa sekhahla sa tikoloho mererong ea kaho.
Lisebelisoa tsa Starch Ether ho Lihlahisoa tse thehiloeng ho Gypsum
Plaster
Lits'ebetsong tsa samente, li-starch ethers li ntlafatsa boiketlo ba ho hasana le ho leka-lekanya, e leng se etsang hore ho be le sebaka se boreleli le se lekanang.Paballo e matlafalitsoeng ea metsi e tiisa hore samente e lula e sebetsa nako e telele, e fokotsa litšila le ho eketsa ts'ebetso setšeng.Ho phaella moo, nako e fokotsehileng ea ho omisa e lumella ho qeta kapele le ho penta, ho potlakisa linako tsa morero.
Liboto tsa lebota
Li-wallboards tsa Gypsum li rua molemo haholo ka ho kenngoa ha starch ethers.Matla a ntlafetseng le ho tšoarella ha nako e telele li fana ka khanyetso e ntlafetseng ea ts'usumetso le ho senyeha, tse hlokahalang libakeng tse nang le sephethephethe se phahameng.Nako e fokotsehileng ea ho omisa le ts'ebetso e matlafalitsoeng e boetse e thusa linako tsa tlhahiso e potlakileng le ho kenya habonolo, ho etsa hore mabota a boloke chelete e ngata le a sebetsang.
Metsoako e Kopanetsoeng
Ka metsoako e kopanetsoeng, starch ethers e fana ka thepa e babatsehang ea ho kopanya, ho netefatsa hore ho na le manonyeletso a se nang moeli le ho fokotsa menyetla ea ho phatloha ha seams.Ho tsitsa ho ntlafetseng le ho sebetsa hantle ho nolofatsa ts'ebeliso, athe ho boloka metsi ho ntlafetseng ho tiisa tlamo e matla le e tšoarellang.
Lithuto tsa Litaba le Mehlala ea 'Nete ea Lefatše
Liphuputso tse 'maloa li bontšitse melemo ea starch ethers lihlahisoa tse thehiloeng ho gypsum.Mohlala, morero oa kaho o sebelisang plaster e fetotsoeng ea starch ether e tlalehile phokotso ea 30% ea nako ea ho omisa le phokotseho e kholo ea ho petsoha ha ho bapisoa le polasetere ea setso.Boithuto bo bong bo mabapi le mabota a gypsum bo bonts'itse keketseho ea 25% ea ho hanyetsa tšusumetso le pheletso e bonolo, e hlahisoang ke ho ntlafala ha metsi le ho sebetsa ho fanoang ke starch ethers.
Mathata le Litsela tsa Kamoso
Leha melemo ea starch ethers e ngotsoe hantle, mathata a ntse a le ho ntlafatsa ts'ebeliso ea bona mefuteng e fapaneng ea gypsum.Patlisiso e ntse e tsoela pele ho lokisa mahloriso le mofuta oa starch ether bakeng sa lits'ebetso tse fapaneng, ho netefatsa melemo e mengata ea ts'ebetso.Lintlafatso tsa nako e tlang li ka lebisa tlhokomelo ho matlafatseng ho lumellana ha starch ethers le li-additives tse ling le ho hlahloba mehloli e mecha ea starch bakeng sa ts'ebetso e kholoanyane.
Li-starch ethers li emela tsoelo-pele e kholo tlhahisong ea lihlahisoa tse thehiloeng ho gypsum, tse fanang ka mokhoa o ntlafetseng oa ho boloka metsi le ho fokotsa linako tsa ho omisa.Melemo ena e fana ka ts'ebetso e ntlafalitsoeng, lisebelisoa tse betere tsa mochini, le ts'ebetso e ntseng e eketseha.Ha indasteri ea kaho e ntse e tsoela pele ho fetoha, ho amoheloa ha starch ether lihlahisoa tsa gypsum ho kanna ea hola, ho susumetsoa ke tlhoko ea thepa ea kaho e sebetsang hantle, e tšoarellang, le e baballang tikoloho.Ka ho sebelisa thepa ea tlhaho ea starch ethers, indasteri e ka finyella ts'ebetso e phahameng le ho kenya letsoho mekhoeng e tsitsitseng ea kaho.
Nako ea poso: Jun-03-2024