ʻO Styrene kahi wai hydrocarbon wai maʻemaʻe i hana nui ʻia mai nā huahana petroleum ma hope o ke kaʻina o ka fractional distillation e unuhi i nā olefins a me nā mea ʻala e pono ai no nā mea kemika e hana ai iā Styrene.Ua like ka nui o na mea kanu kemika me ke kii ma ka aoao akau.E hoʻomaopopo i ke kolamu kūʻokoʻa nui i kapa ʻia ʻo ke kolamu distillation fractional.ʻO kēia kahi e wela ai nā ʻāpana o ka ʻaila i nā wela kiʻekiʻe no ka mea he ʻokoʻa nā wahi hoʻolapalapa o kēlā me kēia mea kemika nui no laila e hoʻokaʻawale pono ai iā lākou.
ʻO Styrene ka mea i ʻike ʻia ma nā pōʻai kemika ma ke ʻano he monomer.ʻO ka hopena o nā monomers e hoʻokumu ana i "nā kaulahao" a me ka hiki ke hoʻopili me nā molekole ʻē aʻe he mea nui i ka hana ʻana i ka Polystyrene.Loaʻa i nā molekala Styrene kekahi hui vinyl (ethenyl) e kaʻana like i nā electrons i kahi pane i kapa ʻia ʻo covalent bonding, hiki iā ia ke hana ʻia i loko o nā plastics.ʻO ka manawa pinepine, hana ʻia ʻo Styrene ma kahi kaʻina hana ʻelua.ʻO ka mua, ʻo ka alkylation o benzene (he hydrocarbon unsaturated) me ka ethylene e hana i ka ethylbenzene.Hoʻohana mau ʻia ka alkylation catalyzed alumini chloride i nā mea kanu EB (ethylbenzene) a puni ka honua.I ka pau ana o ia hana, hookomo ia ka EB ma ke ka'ina hana dehydrogenation pololei loa ma o ka hele 'ana i ka EB a me ka mahu ma luna o ka mea ho'ohehe'e e like me ka hao, alumini kalaiwa, a i 'ole i kēia mau lā, he zeolite catalyst system no ka loa'a 'ana o ke 'ano o Styrene.Ma kahi kokoke i nā ethylbenzene i hana ʻia a puni ka honua e hoʻohana ʻia no ka hana styrene.ʻO nā holomua hou i ka hana ʻo Styrene ua hoʻonui i nā ala e hiki ai ke hana ʻia ʻo Styrene.Hoʻohana ʻia kekahi ala i ka Toluene a me Methanol ma kahi o EB.ʻO ka hiki ke hoʻohana i nā meaʻai ʻokoʻa e lilo ai ʻo Styrene i kumu waiwai hoʻokūkū.
ʻAla ʻAla - Pōkole a ʻono
- Hoʻomoʻa ʻia ka ʻaila ʻaila a lilo i mahu.
- Piʻi ka mahu wela i ke kolamu hakina.
- Wela ke kolamu ma lalo a maʻalili i luna.
- Ke piʻi aʻe kēlā me kēia mahu hydrocarbon a maʻalili a hiki i kona wahi e hoʻolapalapa ai, ʻo ia ka condensed a lilo i wai.
- Hoʻopaʻa ʻia nā hakina wai (nā pūʻulu hydrocarbons me nā helu hoʻolapalapa like) i loko o nā pā a hoʻokuʻu ʻia.
He monomer koʻikoʻi ʻo Styrene i kēia mau Polymers:
- Polystyrene
- EPS (Polystyrene Hoʻonui)
- SAN (Styrene Acrylonitrile Resins)
- SB Latex
- ABS (Acrylonitrile Butadiene Styrene Resins)
- SB Rubber (Styrene-butadiene mai ka makahiki 1940)
- Nā Elastomer Thermoplastic
- MBS (Methacrylate Butadiene Styrene Resins)
Ka manawa hoʻouna: Sep-28-2022