Ho na le mekhahlelo e tšeletseng e meholo ea li-plastiki tse sebelisoang ka tloaelo, polyester (PET polyethylene terephthalate), polyethylene e phahameng haholo (HDPE), polyethylene e tlaase (LDPE), polypropylene (PP), polyvinyl chloride (PVC), polystyrene (PS).
Empa, na ua tseba ho khetholla lipolasetiki tsee?Joang ho hlaolela "mahlo a mollo" oa hau?Ke tla u ruta mekhoa e sebetsang, ha ho thata ho tseba li-plastiki tse sebelisoang hangata ka metsotsoana!
Hoo e ka bang ho na le mekhoa e latelang ea ho khetholla lipolasetiki: boitsebahatso ba ponahalo, boitsebahatso ba mollo, boitsebahatso ba sekhahla, boitsebahatso ba ho qhibiliha, boitsebahatso ba solvent, jj.
Mekhoa e 'meli ea pele e bonolo ebile e bonolo ho e sebelisa,' me e ka boela ea khetholla mefuta ena ea polasetiki hantle haholo.Mokhoa oa ho tsebahatsa boima ba 'mele o ka arola lipolasetiki mme hangata o sebelisoa ts'ebetsong ea tlhahiso.Ka hona, mona re kenyelletsa tse tharo tsa tsona.
Plastiki ka 'ngoe e na le litšobotsi tsa eona, e nang le mebala e fapaneng, gloss, pepeneneng,thatafalo, joalo-joalo Boitsebiso ba ponahalo ke ho khetholla mefuta e fapaneng e thehiloeng holitšobotsi tsa ponahalotsa polasetiki.
Tafole e latelang e bontša litšobotsi tsa ponahalo ea li-plastiki tse 'maloa tse tloaelehileng.Basebetsi ba nang le boiphihlelo ba ho hlopha ba ka khetholla ka nepo mefuta ea lipolasetiki tse ipapisitseng le litšobotsi tsena tsa ponahalo.
Ponahalo ea ponahalo ea li-plastiki tse 'maloa tse sebelisoang hangata
1. Polyethylene PE
Thepa: Ha e sa ntšoa 'mala, e bosoeu bo kang ba lebese, e phatsima ebile e boka;sehlahisoa se utloahala se boreleli ha se ts'oaroa ka letsoho, se bonolo ebile se le thata, 'me se lelelele hanyenyane.Ka kakaretso, polyethylene ea "low-density polyethylene" e bonolo 'me e na le ponaletso e betere, athe polyethylene e boima haholo e thata ho feta.
Lihlahisoa tse tloaelehileng: filimi ea polasetiki, mekotla, liphaephe tsa metsi, meqomo ea oli, libotlolo tsa seno (libotlolo tsa lebese tsa calcium), litlhoko tsa letsatsi le letsatsi, joalo-joalo.
2. Polypropylene PP
Thepa: E tšoeu, e phatsima ebile e na le boka ha e sa mebala;e bobebe ho feta polyethylene.Ponaletso e boetse e betere ho feta polyethylene mme e thata ho feta polyethylene.Ho hanyetsa mocheso o babatsehang, ho phefumoloha hantle, ho hanyetsa mocheso ho fihlela ho 167 ° C.
Lihlahisoa tse tloaelehileng: mabokose, libarele, lifilimi, thepa ea ka tlung, mekotla e lohiloeng, likatiba tsa botlolo, li-bumpers tsa koloi, joalo-joalo.
3. Polystyrene PS
Thepa: E bonaletsa ha e sa mebala.Sehlahisoa se tla etsa molumo oa tšepe ha se theoha kapa se otloa.E na le khanya e ntle le e pepeneneng, e ts'oanang le khalase.E brittle ebile e bonolo ho robeha.U ka senya bokaholimo ba sehlahisoa ka menoana ea hau.Polystyrene e fetotsoeng e opaque.
Lihlahisoa tse tloaelehileng: lintho tsa ho ngola, linoelo, lijana tsa lijo, lik'hasete tsa lisebelisoa tsa lapeng, lisebelisoa tsa motlakase, joalo-joalo.
4. Polyvinyl chloride PVC
Thepa: 'Mala oa pele o mosehla hanyane, o phatsima ebile oa benya.Ponahalo e ntle ho feta polyethylene le polypropylene, empa e mpe ho feta polystyrene.Ho itšetlehile ka palo ea li-additives tse sebelisoang, e arotsoe ka PVC e bonolo le e thata.Lihlahisoa tse bonojoana lia tenyetseha ebile li thata, 'me li ikutloa li khomarela.Lihlahisoa tse thata li na le boima bo phahameng ho feta polyethylene e tlaase-tlaase empa e le tlase ho feta polypropylene, 'me ho soeufala ho tla etsahala likotong.E khona ho mamella mocheso feela ho fihla ho 81°C.
Lihlahisoa tse tloaelehileng: lieta tsa lieta, lintho tsa ho bapala, li-sheath tsa terata, mamati le lifensetere, lintho tsa ho ngola, lijana tsa ho paka, joalo-joalo.
5. Polyethylene terephthalate PET
Thepa: Ponaletso e ntle haholo, matla le ho tiea ho feta polystyrene le polyvinyl chloride, ha e robehe habonolo, e boreleli ebile e benya.E hanyetsana le asiti le alkali, ha e hanyetsane le mocheso o phahameng, e bonolo ho holofala (e ka mamella feela mocheso o ka tlase ho 69 ° C).
Lihlahisoa tse tloaelehileng: hangata lihlahisoa tsa botlolo: Libotlolo tsa Coke, libotlolo tsa metsi a liminerale, joalo-joalo.
holim'a moo
Likarolo tse tšeletseng tse sebelisoang hangata tsa lipolasetiki le tsona li ka tsejoa ka homatshwao a ho botjha.Letšoao la ho tsosolosa hangata le ka tlase ho setshelo.Letšoao la Sechaena ke nomoro ea linomoro tse peli e nang le "0" ka pele.Letšoao la kantle ho naha ke nomoro e le 'ngoe ntle le "0".Linomoro tse latelang li emela mofuta o tšoanang oa polasetiki.Lihlahisoa tse tsoang ho baetsi ba kamehla li na le letšoao lena.Ka letšoao la ho tsosolosa, mofuta oa polasetiki o ka tsejoa ka nepo.
Bakeng sa mefuta e tloaelehileng ea polasetiki, mokhoa oa ho chesa o ka sebelisoa ho li khetholla ka nepo.Ka kakaretso, o hloka ho ba le tsebo ea ho khetha le ho ba le monghali ea tla u tataisa ka nako e itseng, kapa u ka fumana lipolasetiki tse fapaneng le ho etsa liteko tsa mollo u le mong, 'me u ka li tseba ka ho li bapisa le ho li tšoara ka hlooho khafetsa.Ha hona shortcut.Ho batla.'Mala le monko oa lelakabe nakong ea ho chesa le mmuso ka mor'a ho tloha mollong o ka sebelisoa e le motheo oa ho tsebahatsa.
Haeba mofuta oa polasetiki o ke ke oa tiisoa ho tsoa ketsahalong ea ho tuka, mehlala ea mefuta e tsebahalang ea polasetiki e ka khethoa bakeng sa ho bapisa le ho tsebahatsa bakeng sa liphello tse molemo.
Lipolasetiki li na le li-density tse fapaneng, 'me liketsahalo tsa tsona tsa ho teba le ho phaphamala ha tsona metsing le litharollo tse ling le tsona li fapane.Litharollo tse fapaneng li ka sebelisoa hokhetholla mefuta e fapaneng.Ho teteana ha lipolasetiki tse 'maloa tse sebelisoang hangata le ho teteana ha lino tse sebelisoang hangata ho bontšitsoe tafoleng e ka tlase.Mekelikeli e fapaneng e ka khethoa ho latela mefuta ea karohano.
PP le PE li ka hlatsuoa ho tsoa ho PET ka metsi, 'me PP, PE, PS, PA, le ABS li ka hlatsuoa ka brine e tletseng metsi.
PP, PE, PS, PA, ABS, le PC li ka phaphamala ka tharollo e nang le metsi a calcium chloride.Ke PVC feela e nang le boima bo tšoanang le ba PET 'me e ke ke ea aroloa ho PET ka mokhoa oa ho phaphamala.
Nako ea poso: Nov-30-2023