VAE (Vinyl Acetate)

Vinyl acetate (VAE), yomwe imadziwika kuti CH3COOCH=CH2, ndiyomwe imagwiritsidwa ntchito popanga ma polima osiyanasiyana, makamaka ma vinyl acetate-ethylene (VAE) copolymers. Nayi chithunzithunzi cha vinyl acetate ndi tanthauzo lake:

1. Monomer mu Kupanga Polima:

• Vinyl acetate ndi madzi opanda mtundu komanso onunkhira. Ndi monoma yofunikira yomwe imagwiritsidwa ntchito popanga ma polima osiyanasiyana, kuphatikiza polyvinyl acetate (PVA), vinyl acetate-ethylene (VAE) copolymers, ndi vinyl acetate-vinyl versatate (VAV) copolymers.

2. Vinyl Acetate-Ethylene (VAE) Copolymers:

• Ma VAE copolymers amapangidwa ndi copolymerizing vinyl acetate ndi ethylene pamaso pa polymerization initiator ndi zina zowonjezera. Ma copolymers awa amawonetsa kusinthasintha, kumamatira, komanso kukana madzi poyerekeza ndi polyvinyl acetate yoyera.

3. Mapulogalamu:

• Ma copolymer a VAE amagwiritsidwa ntchito kwambiri m'mafakitale osiyanasiyana, kuphatikiza zomatira, zokutira, utoto, zomangira, nsalu, ndi zokutira zamapepala.
• Pogwiritsira ntchito zomatira, ma copolymers a VAE amapereka zomatira zabwino kwambiri kumagulu osiyanasiyana, kuwapanga kukhala oyenera kugwiritsidwa ntchito pomatira matabwa, zomatira zamapepala, ndi zomatira zovutirapo.
• Mu zokutira ndi utoto, ma copolymer a VAE amagwira ntchito ngati zomangira, zomwe zimapereka mawonekedwe opangira mafilimu, kulimba, komanso kukana madzi. Amagwiritsidwa ntchito muzopaka zomangamanga, utoto wokongoletsera, ndi zokutira zamafakitale.
• Pazomangamanga, ma copolymer a VAE amagwiritsidwa ntchito ngati zowonjezera mumatope, zomatira matailosi, ma grouts, ndi zosindikizira kuti azitha kumamatira, kusinthasintha, komanso kukana madzi.

4. Ubwino:

• Ma copolymer a VAE amapereka maubwino angapo kuposa ma polima achikhalidwe, kuphatikiza kawopsedwe kakang'ono, kafungo kakang'ono, kumamatira bwino, kusinthasintha, komanso kukana madzi.
• Ndiwochezeka ndi chilengedwe ndipo amatsatira malamulo osiyanasiyana okhudza ma volatile organic compounds (VOCs) ndi zinthu zoopsa.

5. Kupanga:

• Vinyl acetate imapangidwa makamaka ndi momwe acetic acid ndi ethylene pamaso pa chothandizira, makamaka palladium kapena rhodium complex. Njirayi imaphatikizapo masitepe angapo, kuphatikizapo carbonylation ya methanol kuti apange acetic acid, kutsatiridwa ndi esterification ya acetic acid ndi ethylene kuti apereke vinyl acetate.

Mwachidule, vinyl acetate (VAE) ndi monomer yosunthika yomwe imagwiritsidwa ntchito popanga VAE copolymers, yomwe imagwiritsa ntchito kwambiri zomatira, zokutira, utoto, ndi zida zomangira. Makhalidwe ake apadera komanso chilengedwe chokonda chilengedwe chimapangitsa kukhala chinthu chofunika kwambiri pakupanga mafakitale osiyanasiyana.