VAE (Vinyl Acetate)

Vinyl acetate (VAE), tshuaj hu ua CH3COOCH = CH2, yog ib qho tseem ceeb monomer siv los tsim ntau yam polymers, tshwj xeeb yog vinyl acetate-ethylene (VAE) copolymer. Nov yog cov ntsiab lus ntawm vinyl acetate thiab nws qhov tseem ceeb:

1. Monomer hauv Polymer ntau lawm:

• Vinyl acetate yog cov kua tsis muaj xim nrog cov ntxhiab tsw. Nws yog ib qho tseem ceeb monomer siv nyob rau hauv synthesis ntawm ntau yam polymers, xws li polyvinyl acetate (PVA), vinyl acetate-ethylene (VAE) copolymer, thiab yas acetate-vinyl versatate (VAV) copolymer.

2. Vinyl Acetate-Ethylene (VAE) Copolymer:

• VAE copolymer yog tsim los ntawm copolymerizing vinyl acetate nrog ethylene nyob rau hauv lub xub ntiag ntawm ib tug polymerization pib thiab lwm yam additives. Cov copolymers no muaj kev txhim kho yooj yim, adhesion, thiab dej tsis kam piv rau cov ntshiab polyvinyl acetate.

3. Kev siv:

• VAE copolymers pom kev siv dav hauv ntau yam lag luam, suav nrog cov nplaum, txheej, xim, cov khoom siv, textiles, thiab ntawv txheej.
• Hauv daim ntawv thov nplaum, VAE copolymer muab cov nplaum zoo rau ntau hom substrates, ua rau lawv tsim nyog siv rau hauv cov nplaum ntoo, ntawv nplaum, thiab cov nplaum nplaum.
• Hauv cov txheej txheem thiab cov xim, VAE copolymers ua haujlwm ua cov ntaub ntawv, muab cov yeeb yaj kiab tsim, ua haujlwm ntev, thiab dej tsis kam. Lawv yog siv nyob rau hauv architectural coatings, hniav xim, thiab industrial coatings.
• Hauv kev tsim cov ntaub ntawv, VAE copolymer yog siv los ua cov khoom siv ntxiv rau hauv mortars, pobzeb adhesives, grouts, thiab sealants los txhim kho adhesion, yooj, thiab dej tsis kam.

4. Qhov zoo:

• VAE copolymer muaj ntau qhov zoo dua li cov khoom siv polymers, suav nrog cov tshuaj lom neeg tsawg, tsis muaj ntxhiab tsw, zoo adhesion, yooj, thiab dej tsis kam.
• Lawv yog cov phooj ywg ib puag ncig thiab ua raws li ntau yam kev cai hais txog volatile organic compounds (VOCs) thiab cov khoom tsis zoo.

5. Ntau lawm:

• Vinyl acetate feem ntau yog tsim los ntawm cov tshuaj tiv thaiv ntawm acetic acid nrog ethylene nyob rau hauv lub xub ntiag ntawm ib tug catalyst, feem ntau yog ib tug palladium los yog rhodium complex. Cov txheej txheem muaj ob peb kauj ruam, suav nrog carbonylation ntawm methanol los tsim acetic acid, ua raws li esterification ntawm acetic acid nrog ethylene los ua vinyl acetate.

Hauv cov ntsiab lus, vinyl acetate (VAE) yog ntau yam monomer siv hauv kev tsim cov VAE copolymer, uas pom kev siv dav hauv cov nplaum, txheej, xim, thiab cov ntaub ntawv tsim kho. Nws cov khoom tshwj xeeb thiab tus phooj ywg ib puag ncig ua rau nws muaj txiaj ntsig zoo hauv ntau hom kev lag luam.