Nau'ikan Roba da Ake Amfani da Su a Marufi da Yadda Ake Yin Su
Roba ya zama muhimmin ɓangare na rayuwarmu ta yau da kullun, musamman a masana'antar marufi. Nau'ikan robobi da ake amfani da su don marufi suna da bambanci sosai, kowannensu yana da halaye da amfaninsa. Wannan labarin zai tattauna nau'ikan robobi da yawa da ake amfani da su a cikin marufi da kuma yadda ake ƙera su.
1. Polyethylene Terephthalate (PET)
Halaye da Amfani
PET nau'in filastik ne da aka fi amfani da shi wajen shirya abubuwan sha, kamar kwalaben ruwa da kwalaben soda, kuma ana amfani da shi wajen shirya abinci. PET ta shahara saboda tana da nauyi, ƙarfi, bayyananne, kuma tana jure danshi da iskar gas, don haka tana kiyaye sabo daga samfurin.
Hanyoyin yin
Samar da PET yana farawa ne da sinadaran da ke tsakanin ethylene glycol da terephthalic acid, wanda ke samar da polymer ta hanyar wani tsari da ake kira polycondensation. Da zarar an samar da polymer, ana dumama kayan kuma ya narke, sannan a samar da shi ta hanyar allurar ƙera shi. Sannan ana sake dumama wannan preform ɗin kuma a hura shi cikin mold don samar da kwalba ko wani marufi, wani tsari da aka sani da busa ƙaho.
2. Babban Maɗaukaki Polyethylene (HDPE)
Halaye da Amfani
HDPE nau'in roba ne mai ƙarfi, mai jure wa tasiri, kuma yana da juriya ga sinadarai daban-daban. Ana amfani da HDPE sau da yawa don yin kwalaben madara, kwalaben sabulu, jakunkunan siyayya, har ma da wasu nau'ikan kayan wasa.
Hanyoyin yin
Tsarin kera HDPE ya ƙunshi haɗakar ethylene a ƙarƙashin matsin lamba mai ƙarancin yawa ta amfani da wani takamaiman mai kara kuzari. Da zarar an samar da polymer ɗin, ana narkar da HDPE ɗin kuma a fitar da shi zuwa zanen gado, bututu, ko ƙananan abubuwa, waɗanda daga nan za a iya ƙara siffanta su ta hanyoyi daban-daban kamar gyaran busa, gyaran allura, da gyaran roto, ya danganta da samfurin ƙarshe da ake so.
3. Polyvinyl Chloride (PVC)
Halaye da Amfani
PVC nau'in filastik ne mai sauƙin amfani wanda ke zuwa ta hanyoyi daban-daban, daga mai tauri zuwa mai sassauƙa. Sau da yawa ana amfani da PVC mai sassauƙa don yin fina-finan filastik, zanen gado, da fakitin blister, yayin da ake amfani da PVC mai tauri don yin kwalabe da wasu nau'ikan bututu.
Hanyoyin yin
Ana yin PVC ta hanyar polymerization na vinyl chloride monomer (VCM). Wannan amsawar yawanci ana yin ta ne a cikin manyan reactors a ƙarƙashin takamaiman matsin lamba da yanayin zafi. Samfurin PVC na ƙarshe yana cikin foda ko pellet, wanda daga nan za a iya narke shi kuma a samar da shi zuwa samfura daban-daban ta hanyar hanyoyin kamar extrusion, kalanda, ko allurar ƙera.
4. Polyethylene mai ƙarancin yawa (LDPE)
Halaye da Amfani
An san LDPE da sassauci, juriya ga danshi, da kuma sauƙin sarrafawa. Ana amfani da LDPE sau da yawa don yin jakunkunan filastik, marufi mai sassauƙa, da kuma murfin fim don abubuwa kamar naɗe abinci.
Hanyoyin yin
Ana yin LDPE ta hanyar polymerization na ethylene a ƙarƙashin matsin lamba da zafin jiki mai yawa, ta amfani da mai ƙaddamar da free radical. Samfurin resin ne wanda za a iya narke shi kuma a samar da shi zuwa siffofi daban-daban ta hanyar hanyoyin kamar ƙera busar extrusion da extrusion film extrusion.
5. Polypropylene (PP)
Halaye da Amfani
Polypropylene roba ce da ke jure zafi, sinadarai, da gajiya. Ana amfani da PP a cikin marufi na abinci, musamman ga kayayyakin da ke buƙatar dumamawa, kamar microwaves, kuma ana amfani da shi don yin murfi na kwalba, bambaro, da nau'ikan kwantena daban-daban.
Hanyoyin yin
Samar da polypropylene ya ƙunshi haɗa propene a ƙarƙashin matsin lamba da zafin jiki mai sauƙi ta amfani da mai ƙara kuzari na Ziegler-Natta ko mai ƙara kuzari na metallocene. Da zarar an samar da polymer ɗin, ana narkar da kayan kuma a fitar da su zuwa ƙwayoyin halitta, wanda daga nan za a iya ƙara sarrafa su ta amfani da hanyoyi kamar ƙera allura, fitar da su, da kuma ƙera busassun abubuwa don samar da samfurin ƙarshe.
6. Polystyrene (PS)
Halaye da Amfani
Polystyrene roba ce mai tauri, bayyananne, kuma mai sauƙin sarrafawa. Sau da yawa ana amfani da ita wajen yin kofunan abin sha da za a iya zubarwa, kwantena na abinci, tiren nama, da kayan kariya kamar Styrofoam.
Hanyoyin yin
Ana yin polystyrene ta hanyar polymerization na styrene monomer. Tsarin zai iya zama ko dai polymerization mai yawa ko kuma dakatar da polymerization, inda ake narkar da styrene kuma a polymerized tare da taimakon mai farawa mai 'yanci. Samfurin ƙarshe shine ƙananan kwalaye ko takardu waɗanda za a iya ƙara samar da su zuwa samfura daban-daban ta hanyar hanyoyin kamar allurar ƙera, extrusion, ko thermoforming.
7. Polymethyl Methacrylate (PMMA)
Halaye da Amfani
Polymethyl Methacrylate, wanda aka fi sani da acrylic ko Plexiglas, filastik ne mai haske wanda aka san shi da tsabta da juriya ga yanayi. Ana amfani da PMMA yawanci don marufi wanda ke buƙatar kyakkyawan gabatarwa ta gani, kamar akwatunan nuni da marufi mai kyau.
Hanyoyin yin
Ana yin PMMA ta hanyar haɗa sinadarin methyl methacrylate. Wannan tsari ya ƙunshi mai farawa kamar peroxide don fara haɗa sinadarin sarkar polymerization. Sannan ana narkar da sinadarin PMMA da aka samar sannan a fitar da shi ko a ƙera shi zuwa siffar da ake so.
Kammalawa
Roba ya kawo fa'idodi da yawa ga masana'antar marufi, tun daga kariyar samfura mai inganci zuwa sauƙin sarrafawa da sake amfani da su. Duk da haka, yana da mahimmanci a yi la'akari da tasirin muhalli na amfani da robobi. Sake amfani da su da sake amfani da su suna cikin hanyoyin magance mummunan tasirin sharar robobi.
Fahimtar nau'ikan robobi daban-daban da kuma yadda ake ƙera su ba wai kawai yana ba da haske game da hanyoyin masana'antu ba, har ma yana taimaka mana mu yanke shawara mai kyau game da amfani da waɗannan kayan, a gida da kuma a masana'antu. Bari mu ci gaba da ƙirƙira da kuma yin aiki tare don kiyaye duniyarmu ta kasance mai tsabta da lafiya!
