VAE (Vinyl Acetate)

Vinyl acetate (VAE), e tsejoang ka lik'hemik'hale e le CH3COOCH=CH2, ke monoma ea bohlokoa e sebelisoang ho hlahisa li-polymer tse fapa-fapaneng, haholo-holo vinyl acetate-ethylene (VAE) copolymers. Mona ke kakaretso ea vinyl acetate le bohlokoa ba eona:

1. Monomer in Polymer Production:

• Vinyl acetate ke mokelikeli o se nang 'mala o monko o monate. Ke monomer ea bohlokoa e sebelisoang ha ho etsoa lipolymer tse fapaneng, ho kenyeletsoa polyvinyl acetate (PVA), vinyl acetate-ethylene (VAE) copolymers, le vinyl acetate-vinyl versatate (VAV) copolymers.

2. Vinyl Acetate-Ethylene (VAE) Copolymers:

• Li-copolymers tsa VAE li hlahisoa ke copolymerizing vinyl acetate e nang le ethylene ka pel'a mochine oa polymerization le lisebelisoa tse ling. Li-copolymers tsena li bonts'a ho feto-fetoha ha maemo, ho khomarela, le ho hanyetsa metsi ha li bapisoa le polyvinyl acetate e hloekileng.

3. Likopo:

• Li-copolymers tsa VAE li fumana tšebeliso e ngata liindastering tse fapaneng, ho kenyeletsoa likhomaretsi, lipente, lipente, thepa ea kaho, masela le liphahlo tsa pampiri.
• Lits'ebetsong tsa sekhomaretsi, li-copolymers tsa VAE li fana ka sekhomaretsi se setle ho mefuta e mengata ea li-substrates, tse etsang hore li tšoanelehe bakeng sa ho sebelisoa ka li-adhesives tsa lehong, li-adhesives tsa pampiri le li-adhesives tse thibelang khatello.
• Lirapeng le lipente, li-copolymers tsa VAE li sebetsa e le li-binders, li fana ka thepa ea ho etsa lifilimi, ho tšoarella le ho hanyetsa metsi. Li sebelisoa ho etsa lirafshoa tsa meralo, lipente tse khabisitsoeng le lirafshoa tsa indasteri.
• Linthong tsa kaho, li-copolymers tsa VAE li sebelisoa e le li-additives ka seretse, li-adhesives tsa lithaele, li-grouts le li-sealants ho ntlafatsa ho khomarela, ho feto-fetoha ha maemo le ho hanyetsa metsi.

4. Melemo:

• Li-copolymers tsa VAE li fana ka melemo e mengata ho feta lipolymer tsa setso, ho kenyelletsa chefo e tlase, monko o tlase, ho khomarela hantle, ho tenyetseha le ho hanyetsa metsi.
• Li na le botsoalle ba tikoloho 'me li latela melaoana e fapaneng e mabapi le li-volatile organic compounds (VOCs) le lintho tse kotsi.

5. Tlhahiso:

• Vinyl acetate e hlahisoa haholo ke karabelo ea asiti ea acetic e nang le ethylene boteng ba catalyst, hangata e le palladium kapa rhodium complex. Ts'ebetso ena e kenyelletsa mehato e mengata, ho kenyelletsa carbonylation ea methanol ho hlahisa acetic acid, e lateloa ke esterification ea acetic acid ka ethylene ho hlahisa vinyl acetate.

Ka kakaretso, vinyl acetate (VAE) ke monoma e sebetsang ka mefuta-futa e sebelisoang ho hlahisa li-copolymers tsa VAE, tse fumanang lisebelisoa tse ngata ho li-adhesive, li-coatings, lipente le thepa ea kaho. Thepa ea eona e ikhethang le tlhaho e se nang botsoalle ho tikoloho e etsa hore e be karolo ea bohlokoa mekhoeng e fapaneng ea indasteri.