Tsarin Samar da Roba na Polystyrene da Amfaninsa a cikin Marufin Abinci
Roba ta polystyrene, wacce aka fi sani da polystyrene a Turanci, nau'in roba ne mai amfani da yawa wanda ake amfani da shi sosai a fannoni daban-daban na masana'antu, gami da na'urorin tattara abinci. Wannan labarin zai tattauna tsarin samar da polystyrene da kuma aikace-aikacensa a cikin na'urorin tattara abinci.
Takaitaccen Tarihi da Tsarin Sinadaran Polystyrene
Edward Simon ne ya fara haɗa polystyrene a shekarar 1839. Duk da haka, sai a shekarun 1930 ne kamfanin Jamus IG Farben ya ƙirƙiro polystyrene ya zama kayan kasuwanci. Polystyrene wani abu ne mai ƙamshi da aka ƙera daga monomer styrene, wanda shine mahaɗin vinylbenzene. Tsarin sinadaransa ya ƙunshi raka'o'in styrene monomer masu maimaitawa:
\[ [-CH_2-CH(C_6H_5)-]_n \]
Inda \(C_6H_5\) zoben phenyl ne wanda ke ba wa polystyrene halaye na musamman kamar tauri da dorewa.
Tsarin Samar da Polystyrene
1. Tsarin Styrene Monomer:
Tsarin samar da polystyrene yana farawa ne da samar da monomer na styrene. Ana samar da Styrene ta hanyar rage yawan sinadarin ethylbenzene, wanda ya kunshi matakai da dama:
– Alkylation na benzene: Benzene yana amsawa da ethylene don samar da ethylbenzene a gaban wani abu mai kara kuzari na acid.
– Rage sinadarin ethylbenzene: Na gaba, ana dumama ethylbenzene a zafin jiki mai yawa (kusan 600-650°C) tare da sinadarin ƙarfe mai hana iskar oxygen don samar da styrene da hydrogen.
2. Yin amfani da Polymerization na Styrene:
Daga nan sai a yi polymerization na styrene don samar da polystyrene. Ana iya amfani da hanyoyi da dama na polymerization, ciki har da mass, suspension, da emulsion polymerization. Duk da haka, mafi yawan shine suspension polymerization, wanda ya ƙunshi matakai masu zuwa:
– Farawa: Tsarin polymerization yana farawa da wani mai ƙaddamar da free radical wanda ke haifar da styrene ya samar da free radicals.
– Yaɗuwa: 'Yantar da ƙwayoyin halitta daga monomers za su jawo hankalin wasu monomers, suna samar da dogayen sarƙoƙi na polymer.
– Karewa: Ana ci gaba da wannan tsari har sai polymer ya kai tsawon kwayoyin halitta da ake so kuma amsawar ta ƙare.
3. Fitarwa da Samarwa:
Bayan an yi amfani da polymerization, polystyrene da aka samar yana cikin nau'in ƙwayoyin cuta ko granules. Sannan ana busar da granules ɗin polystyrene kuma ana narkewa ta amfani da injin extrusion. Wannan tsarin extrusion yana ba da damar samar da kayan zuwa siffofi daban-daban kamar yadda ake buƙata, kamar zanen gado don marufi na abinci.
Aikace-aikacen Polystyrene a cikin Marufi na Abinci
Dangane da tsarinsa da kuma yanayinsa, polystyrene yana da nau'ikan iri-iri, ciki har da:
– Polystyrene na Gabaɗaya (GPPS): Yana da sifofi masu haske da karyewa, galibi ana amfani da shi don samfuran da za a iya zubarwa kamar cokali na filastik, cokali mai yatsu, da faranti.
– Polystyrene mai ƙarfi (HIPS): An yi shi da robar butadiene, tana da juriya mafi girma kuma ana amfani da ita don marufi kayayyakin da ke buƙatar ƙarin tauri.
– Kumfa Mai Faɗaɗawa na Polystyrene (EPS): Wannan kayan yana da kyawawan kaddarorin rufewa kuma yana da sauƙin amfani, ana amfani da shi don kwantena na abinci kamar styrofoam.
Marufin Abinci na Polystyrene
Ana amfani da polystyrene sosai a masana'antar marufin abinci saboda dalilai da yawa, ciki har da sauƙin nauyinsa, ƙarancin farashi, da kuma sauƙin sassauƙa. Ga wasu takamaiman amfani da polystyrene a cikin marufin abinci:
1. Kwantenan Abinci Mai Sauri:
Ɗaya daga cikin abubuwan da aka fi amfani da su shine kwantena na Styrofoam don abinci mai sauri. Waɗannan kwantena suna da kyawawan halaye na rufewa, suna kiyaye abinci mai zafi ko sanyi na dogon lokaci.
2. Kofuna da Faranti na filastik:
Ana yin kofuna, faranti, da kayan yanka (cokali, cokali mai yatsu) sau da yawa daga polystyrene ko HIPS na yau da kullun saboda bayyanannensa da juriyarsa ga tasiri.
3. Marufi na Nama da Kifi:
Ana naɗe nama da kifi ta amfani da tiren polystyrene da aka lulluɓe da fim ɗin filastik. Waɗannan tiren suna taimakawa wajen riƙe danshi da kuma ƙara kyawun samfurin.
4. Marufin Kwai:
Ana amfani da marufin kumfa na polystyrene saboda abubuwan da ke sha da girgiza, wanda ke ba da ƙarin kariya ga ƙwai daga karyewa yayin rarrabawa.
5. Tiren Abinci da Abin Sha:
Ana amfani da tiren polystyrene sau da yawa don ba da abinci da abin sha a wurare kamar kantuna, gidajen cin abinci, da kuma a cikin akwatunan abinci na jirgin sama.
Damuwar Muhalli da Kokarin Sake Amfani da Su
Duk da fa'idodi da yawa da ke tattare da shi, amfani da polystyrene a cikin marufi na abinci yana haifar da damuwa game da muhalli. Polystyrene abu ne da ba zai iya lalacewa ba, wanda ke ba da gudummawa ga matsalar sharar filastik da ke damun muhalli.
1. Ragewa da Sauyawa:
Gwamnatoci da ƙungiyoyin kare muhalli da dama suna matsa lamba don rage amfani da kayayyakin polystyrene da ake amfani da su sau ɗaya, sannan a maye gurbinsu da kayan da suka fi dacewa da muhalli kamar su bioplastics ko kwali.
2. Sake amfani da shi:
Bugu da ƙari, sake amfani da polystyrene muhimmin mataki ne na rage tasirinsa. Tsarin sake amfani da polystyrene ya ƙunshi tattarawa, rarrabawa, tsaftacewa, da sake sarrafa polystyrene zuwa sabbin kayayyaki.
3. Ƙirƙirar Fasaha:
Ana kuma haɓaka sabbin abubuwa daban-daban don sanya polystyrene ya zama mai kyau ga muhalli, gami da fasahohin da ke ba da damar polystyrene ya ruɓe cikin sauri ko amfani da kayan da aka samar daga hanyoyin da ake sabuntawa.
Kammalawa
Polystyrene abu ne mai mahimmanci a masana'antar shirya abinci saboda sauƙin amfani da shi, sauƙin amfani, da kuma inganci mai kyau. Tsarin samar da shi ya ƙunshi matakai da dama, tun daga samar da monomers na styrene zuwa polymerization da kuma ƙirƙirar samfuran ƙarshe na musamman. Duk da fa'idodi da yawa da yake da su, yana da mahimmanci a sarrafa polystyrene cikin hikima don rage mummunan tasirinsa ga muhalli da kuma tallafawa ƙoƙarin sake amfani da shi mai ɗorewa.
Amfani da hankali, tare da sabbin dabaru don rage tasirin muhalli, shine mabuɗin dorewar amfani da polystyrene a nan gaba.
