HEMC e sebelisitsoeng ho Skim Coat

Hydroxyethyl Methyl Cellulose (HEMC) e atisa ho sebelisoa ha ho etsoa liaparo tsa skim coat e le motsoako oa bohlokoa ho ntlafatsa thepa le ts'ebetso ea sehlahisoa. Skim coat, eo hape e tsejoang ka hore ke finishing plaster kapa wall putty, ke lesela le tšesaane la thepa ea samente e kentsoeng holim'a metsi ho boreleli le ho e lokisetsa ho penta kapa ho phethoa ho ea pele. Mona ke kakaretso ea hore na HEMC e sebelisoa joang lits'ebetsong tsa skim coat:

1. Selelekela sa Hydroxyethyl Methyl Cellulose (HEMC) ka Skim Coat

1.1 Seabo ho Liqapi tsa Skim Coat

HEMC e eketsoa ho skim coat formulations ho ntlafatsa thepa e fapaneng, ho kenyeletsoa ho boloka metsi, ho sebetsa le matla a sekhomaretsi. E kenya letsoho ts'ebetsong ea kakaretso ea seaparo sa skim nakong ea kopo le ho phekola.

1.2 Melemo ho Likopo tsa Skim Coat

• Ho Boloka Metsi: HEMC e thusa ho boloka metsi ka har'a motsoako oa skim coat, ho thibela ho tsoa mouoane ka potlako le ho lumella ho sebetsa ha nako e telele.
• Mosebetsi: HEMC e ntlafatsa ts'ebetso ea seaparo sa skim, ho etsa hore ho be bonolo ho jala, ho boreleli le ho sebetsa holim'a metsi.
• Matla a Adhesive: Ho eketsoa ha HEMC ho ka matlafatsa matla a sekhomaretsi a seaparo sa skim, ho khothalletsa ho khomarela hantle ho substrate.
• Ho tsitsisa: HEMC e kenya letsoho ho tsitsinyeheng ha seaparo sa skim, ho thibela litaba tse kang ho fokotseha le ho netefatsa hore ho na le kopo e tšoanang.

2. Mesebetsi ea Hydroxyethyl Methyl Cellulose ka Skim Coat

2.1 Poloko ea Metsi

HEMC ke polymer ea hydrophilic, e bolelang hore e na le kamano e matla ea metsi. Ha ho etsoa li-skim coat, e sebetsa e le moemeli oa ho boloka metsi, ho netefatsa hore motsoako o lula o sebetsa nako e telele. Sena se bohlokoa haholo lits'ebetsong tsa skim coat moo ho batloang nako e telele ea ho bula.

2.2 Sebetsa se Ntlafetseng

HEMC e ntlafatsa ts'ebetso ea seaparo sa skim ka ho fana ka mokhoa o tsitsitseng le o monate. Ts'ebetso ena e ntlafalitsoeng e lumella ho hasana habonolo le ts'ebeliso libakeng tse fapaneng, ho netefatsa pheletso e ntle le e khahlisang.

2.3 Matla a Sekhomaretsi

HEMC e kenya letsoho ho matla a sekhomaretsi a seaparo sa skim, ho khothalletsa maqhama a molemo pakeng tsa skim coat layer le substrate. Sena ke sa bohlokoa bakeng sa ho fihlela pheletso e tšoarellang le e tšoarellang halelele maboteng kapa siling.

2.4 Ho hanyetsana le Sag

Thepa ea rheological ea HEMC e thusa ho thibela ho theoha kapa ho thella ha seaparo sa skim nakong ea kopo. Sena ke sa bohlokoa bakeng sa ho fumana botenya bo tsitsitseng le ho qoba libaka tse sa tšoaneng.

3. Likopo ho Skim Coat

3.1 Ho Qetella Lebota ka Hare

HEMC e atisa ho sebelisoa ka lijase tsa skim tse etselitsoeng ho qeta lerako la ka hare. E thusa ho finyella sebaka se boreleli le se ts'oanang, se loketseng ho penta kapa mekhoa e meng ea ho khabisa.

3.2 Ho Lokisa le ho Kopanya Metsoako

Ka ho lokisa le ho kopanya metsoako, HEMC e ntlafatsa ho sebetsa le ho khomarela thepa, ho etsa hore e atlehe ho lokisa mefokolo le mapetsong a marako le siling.

3.3 Liqeto Tse Khabisoang

Bakeng sa likhabiso tse khabisitsoeng, tse kang liphahlo tse entsoeng kapa tse entsoeng ka mokhoa o hlophisitsoeng, HEMC e thusa ho boloka botsitso le ts'ebetso e lakatsehang, e leng se lumellang hore ho thehoe liphello tse fapa-fapaneng tsa mekhabiso.

4. Mehato le Litlhokomelo

4.1 Tekanyetso le Kamano

Tekanyo ea HEMC ka lihlahisoa tsa skim coat e lokela ho laoloa ka hloko ho finyella thepa e lakatsehang ntle le ho ama litšobotsi tse ling hampe. Ho lumellana le li-additives le lisebelisoa tse ling ho bohlokoa hape.

4.2 Tšusumetso ea Tikoloho

Ho lokela ho nahanoa ka phello ea tikoloho ea lisebelisoa tsa kaho, ho kenyeletsoa HEMC. Likhetho tse tšoarellang le tse bonolo tsa tikoloho li ntse li le bohlokoa haholo indastering ea kaho le thepa ea moaho.

4.3 Litlhaloso tsa Sehlahisoa

Lihlahisoa tsa HEMC li ka fapana ho ea ka litlhaloso, 'me ho bohlokoa ho khetha kereiti e nepahetseng ho latela litlhoko tse khethehileng tsa kopo ea skim coat.

5. Qetello

Boemong ba liaparo tsa skim, Hydroxyethyl Methyl Cellulose ke tlatsetso ea bohlokoa e ntlafatsang ho boloka metsi, ho sebetsa, matla a ho khomarela le ho tsitsisa. Lijase tsa skim tse entsoeng ka HEMC li fana ka pheletso e boreleli, e tšoarellang, le bokhabane maboteng a kahare le siling. Ho ela hloko litekanyetso, ho lumellana, le maemo a tikoloho ho netefatsa hore HEMC e eketsa melemo ea eona lits'ebetsong tse fapaneng tsa skim coat.