Gypsum Hand Plaster ke eng?

Gypsum hand plaster ke thepa ea kaho e sebelisetsoang ho qeta marako a ka hare.Ke motsoako oa gypsum, aggregates, le li-additives tse ling, 'me li sebelisoa ka letsoho ke basebetsi ba nang le tsebo ba sebelisang lisebelisoa tsa matsoho.Polasetere e koloteloa holim'a lebota, e etsa hore ho be le boreleli esita le qetello e ka siuoang e le joalo kapa ea penta.

Gypsum, motsoako o ka sehloohong oa samente ea letsoho ea gypsum, ke liminerale tse hlahang ka tlhaho tse rafshoang ho tsoa ho li-deposit lefatšeng.Ke lintho tse bonolo le tse tšoeu tse phunyeletsoeng habonolo hore e be phofo.Ha e kopantsoe le metsi, gypsum e etsa sekhomaretsi se thatafalang ho ba ntho e thata.Thepa ena e etsa hore e be motsoako o loketseng oa ho lipola.

Li-aggregates, tse kang lehlabathe kapa perlite, li kenngoa motsoako oa gypsum plaster ho ntlafatsa ts'ebetso ea eona, ho fokotsa ho fokotseha le ho phunyeha, le ho ntlafatsa thepa ea eona ea mocheso le acoustic.Li-additives tse ling, joalo ka likhoele tsa cellulose kapa li-air-entraining agents, le tsona li ka eketsoa ho ntlafatsa matla le ho tšoarella ha plaster.

Gypsum hand plaster ke lisebelisoa tse fapaneng tse ka sebelisetsoang mefuta e fapaneng ea marako a kahare.E ka sebelisoa sebakeng leha e le sefe se hloekileng, se omeletseng le se nang le molumo, ho akarelletsa le konkreite, masonry kapa plasterboard.Plaster e ka sebelisoa ho etsa qetello e boreleli kapa e entsoeng, ho itšetlehile ka ponahalo e lakatsehang.

E 'ngoe ea melemo ea plaster ea letsoho ea gypsum ke thepa ea eona e thibelang mollo.Gypsum ke thepa ea tlhaho e thibelang mollo e ka thusang ho thibela ho ata ha mollo ha ho ka ba le mollo.Sena se etsa hore e be khetho e ratoang bakeng sa mehaho ea khoebo le ea sechaba, moo tšireletso ea mollo e amehileng ka eona.

Molemo o mong oa plaster ea letsoho ea gypsum ke boiketlo ba eona ba kopo.Ho fapana le li-plaster tse sebelisoang ka mochine, tse hlokang lisebelisoa tse khethehileng, gypsum hand plaster e ka sebelisoa ka letsoho ho sebelisa lisebelisoa tse bonolo tsa matsoho.Sena se etsa hore e be tharollo e theko e tlaase bakeng sa merero e menyenyane kapa libaka tseo ho leng thata ho li fumana.

Ka lehlakoreng le leng, cellulose ether ke polima e qhibilihang ka metsing e tsoang ho selulose ea tlhaho.Hangata e sebelisoa ka plaster ea letsoho ea gypsum e le tlatsetso ho ntlafatsa ts'ebetso ea thepa le ho sebetsa.

Cellulose ether e kenyellelitsoe motsoakong oa gypsum plaster ho ntlafatsa thepa ea eona e kang ho boloka metsi, ho khomarela le ho sebetsa.E sebetsa e le motenya, e lumellang plaster hore e hasane habonolo le ka mokhoa o ts'oanang holim'a metsi, e fokotsa ho phunyeha le ho ntlafatsa ponahalo ea eona ka kakaretso.E boetse e sebetsa e le setlamo, se tšoara motsoako hammoho le ho ntlafatsa ho khomarela holimo.

Thepa ea ho boloka metsi ea cellulose ether e bohlokoa haholo ho samente ea letsoho ea gypsum.Gypsum plaster e hloka tekanyo e itseng ea mongobo ho finyella boemo bo nepahetseng le ho thatafala.Ntle le ho boloka metsi ka nepo, samente e ka omella kapele, e bakang ho peperana, ho honyela le liphoso tse ling.Cellulose ether e thusa ho boloka metsi ka har'a motsoako oa samente, ho liehisa mokhoa oa ho omisa le ho netefatsa hore samente e beha hantle.

Ntle le ho boloka metsi le ho teteaneng, cellulose ether e ka boela ea ntlafatsa thepa ea ho futhumatsa le ea acoustic ea gypsum hand plaster.Ka ho eketsa likhoele tsa cellulose ho motsoako, samente e ka fana ka monyetla o motle oa molumo le ho kenya letsoho, ho ntlafatsa boiketlo ba kakaretso le matla a matla a mohaho.

Khetho le palo ea cellulose ether e kentsoeng ho plaster ea letsoho ea gypsum e ka ama ts'ebetso ea eona le ts'ebetso ea eona haholo.Mefuta e fapaneng ea cellulose ether e fumaneha, joalo ka hydroxyethyl cellulose (HEC), methyl cellulose (MC), le carboxymethyl cellulose (CMC), e 'ngoe le e' ngoe e na le thepa le litšobotsi tsa eona tse ikhethang.Mofuta le palo ea cellulose ether e kenyellelitsoeng ho motsoako oa plaster e tlameha ho khethoa ka hloko ho latela litlhoko tse khethehileng tsa morero.

Ka bokhutšoanyane, plaster ea letsoho ea gypsum ke thepa ea kaho e sebelisetsoang ho qeta marako a ka hare.Ke motsoako oa gypsum, aggregates, le li-additives tse ling, 'me li sebelisoa ka letsoho ke basebetsi ba nang le tsebo ba sebelisang lisebelisoa tsa matsoho.Plaster ea letsoho ea gypsum ha e che, e bonolo ho e sebelisa, 'me e ka sebelisoa ho etsa mefuta e mengata ea ho qetela.