Li-Gypsum Retarders

Gypsum retarder ke motsoako oa lik'hemik'hale o sebelisoang indastering ea kaho ho fokotsa nako ea ho beha thepa e thehiloeng ho gypsum, joalo ka samente kapa samente ea gypsum.Li-retarders tsa Gypsum li bohlokoa lits'ebetsong tsa kaho moo ho nang le ts'ebetso e atolositsoeng kapa nako ea ho beha nako e hlokahalang ho netefatsa ho tsoakoa hantle, ts'ebeliso le ho phethoa ha lihlahisoa tsa gypsum.

Mosebetsi oa li-Gypsum Retarders:

Mosebetsi oa mantlha oa li-retarders tsa gypsum ke ho liehisa ts'ebetso ea ho beha lisebelisoa tse thehiloeng ho gypsum ka ho laola karabelo ea hydration ea gypsum.Gypsum, minerale ea tlhaho e entsoeng ka calcium sulfate dihydrate (CaSO4 · 2H2O), e kopana le lik'hemik'hale ka metsi ho etsa gypsum plaster kapa gypsum samente.Boitšoaro bona, bo tsejoang e le hydration, bo kenyelletsa ho qhibiliha ha likristale tsa gypsum tse lateloang ke ho tsosolosa kristale, e lebisang ho thatafala kapa ho behoa ha thepa.

Ka ho hlahisa lik'hemik'hale tse khethehileng tsa lik'hemik'hale e le li-retarders, ts'ebetso ea hydration e lieha, ka hona e lelefatsa nako ea ho sebetsa ea lihlahisoa tse thehiloeng ho gypsum.Mokhoa ona o atolositsoeng oa ho sebetsa o lumella basebetsi ba kaho nako e eketsehileng ea ho kopanya, ho tšela, ho bōpa le ho qeta, haholo-holo maemong ao ho oona ho hlokahalang hore ho akaretsoe libaka tse khōlō kapa lintlha tse rarahaneng li lokela ho finyelloa.

Mefuta ea li-Gypsum Retarders:

Mefuta e mengata ea lik'hemik'hale e ka sebetsa e le li-retarders tsa gypsum, e 'ngoe le e' ngoe e na le mokhoa oa eona oa ho sebetsa.Mefuta e tloaelehileng ea li-retarders tsa gypsum e kenyelletsa:

1. Organic acids: Li-organic acid tse ling, joalo ka citric acid kapa tartaric acid, li ka sitisa gypsum hantle ka ho kopanya li-ion tsa calcium, tse bohlokoa bakeng sa gypsum hydration.Karabelo ena e rarahaneng e liehisa sekhahla sa ho qhibiliha ha gypsum le pula, ka hona e liehisa ts'ebetso ea ho seta.
2. Phosphates: Phosphates, ho akarelletsa le sodium phosphate kapa potassium phosphate, e ka boela ea sebetsa e le li-retarders ka ho etsa metsoako ea calcium phosphate e sa tsitsang, e thibelang ho phalla ha likristale tsa gypsum.Phosphates e sebetsa e le li-retarders tse sebetsang maemong a tlase 'me hangata li sebelisoa hammoho le li-additives tse ling ho fihlela nako eo u e batlang.
3. Li-cellulose ethers: Li-ether tse ling tsa cellulose, tse kang methyl cellulose kapa hydroxyethyl cellulose, li ka sebetsa e le litšitiso ka ho kenya limolek'hule tsa metsi ka 'mele le ho thibela ho fumana likaroloana tsa gypsum.Mochine ona o liehisa karabelo ea hydration ka ho fokotsa ho fumaneha ha metsi, ka hona ho eketsa nako ea ho sebetsa ea lisebelisoa tse thehiloeng ho gypsum.
4. Li-additives tse ling: Li-additives tse ling tse fapaneng tsa lik'hemik'hale, tse kenyelletsang lignosulfonates, gluconates, kapa li-polymers, le tsona li ka bonts'a thepa e sa sebetseng ha e kenyelelitsoe ho gypsum formulations.Li-additives tsena li ka sebelisana le likaroloana tsa gypsum kapa tsa fetola thepa ea rheological ea motsoako, e leng se lebisang ho liehisa ho liehisa litšobotsi.

Lisebelisoa tsa li-Gypsum Retarders:

Li-retarders tsa Gypsum li fumana ts'ebeliso e atileng mererong ea kaho moo ho hlokahalang ho sebetsa nako e telele kapa ho beha nako.Lisebelisoa tse ling tse tloaelehileng li kenyelletsa:

1. Polastering: Ha ho liloa, li-retarder tsa gypsum li fa batho ba li plastering nako e eketsehileng ea ho li kenya le ho laola plaster ea gypsum maboteng, holim'a siling kapa libakeng tse khabisitsoeng pele e beha.Ts'ebetso ena e atolositsoeng e molemo ka ho khetheha bakeng sa ho fihlela liphetho tse boreleli kapa meralo e rarahaneng.
2. Ho Bopa le ho Rala: Li-retarders tsa Gypsum li sebelisoa ha ho etsoa liforomo tse thehiloeng ho gypsum, samente le likarolo tsa meralo, moo ho hlokahalang sebopeho se nepahetseng le lintlha tse qaqileng.Ka ho fokotsa nako ea ho beha, bahlahisi ba ka etsa bonnete ba ho tlatsa liforomo tse tšoanang le ho thibela ho thatafala pele ho nako nakong ea ts'ebetso ea ho lahla.
3. Ho Tlatsa Kopanelo ea Kaho: Likarolong tsa kaho kapa likheo pakeng tsa liphanele tsa gypsum kapa liboto, li-retarders li eketsoa ho metsoako e kopaneng ea gypsum ho thibela ho omisoa le ho phatloha pele ho nako.Sena se lumella ho kopanya ka mokhoa o se nang moeli oa liphanele tsa gypsum le ho tiisa hore ho na le nako e telele, e sa phunyeheng ka nako.
4. Lisebelisoa tse Khethehileng: Li-retarders tsa Gypsum le tsona li ka sebelisoa lits'ebetsong tse ikhethileng, joalo ka ha ho etsoa likhomaretsi tse thehiloeng ho gypsum, li-grouts, kapa liphahlo tse entsoeng ka masela, moo nako e atolositsoeng e bulehileng kapa nako ea ho beha e lakatsehang bakeng sa ts'ebetso e nepahetseng.

Litlhokomelo le Litlhokomelo:

Le ha li-retarders tsa gypsum li fana ka melemo e mengata lits'ebetsong tsa kaho, litekanyetso tse nepahetseng le ho lumellana le li-additives tse ling li tlameha ho nahanoa ka hloko ho qoba litlamorao tse mpe ts'ebetsong ea sehlahisoa.Tšebeliso e feteletseng ea li-retarders e ka lebisa ho nako e telele haholo ea ho beha nako kapa ea sekisetsa thepa ea mochini oa thepa e thehiloeng ho gypsum.Ho feta moo, bahlahisi le borakonteraka ba tlameha ho latela litataiso tse khothaletsoang le mehato ea polokeho ha ba sebetsana le ho sebelisa li-retarders tsa gypsum ho netefatsa polokeho ea basebetsi le boleng ba sehlahisoa.

Qetellong, li-retarders tsa gypsum li bapala karolo ea bohlokoa indastering ea kaho ka ho eketsa nako ea ho sebetsa le ho beha nako ea lisebelisoa tse thehiloeng ho gypsum.Ho sa tsotellehe hore na li sebelisoa ho lipola, ho bopa, ho tlatsa manonyeletso, kapa linthong tse ling, lisebelisuoa tse sa sebetseng li thusa litsebi tsa kaho hore li fihlele liphetho tse lakatsehang, libōpeho le tlhophiso e nepahetseng.Ka ho utloisisa mesebetsi, mefuta le ts'ebeliso ea li-retarders tsa gypsum, bankakarolo ba ka sebelisa litlatsetso tsena ka nepo ho ntlafatsa lits'ebetso tsa kaho le ho ntlafatsa sephetho sa projeke.