Khatisong ena, re tsoela pele ka kutloisiso ea rona ea li-plastiki ho latela pono ea lik'hemik'hale.
Litšobotsi tsa polasetiki: Lintho tse entsoeng ka polasetiki li itšetlehile ka lik'hemik'hale tsa likaroloana tse nyenyane, hore na likaroloana tseo li hlophisitsoe joang le hore na li sebetsoa joang.Lipolasetiki tsohle ke li-polymers, empa ha se li-polymer tsohle tseo e leng lipolasetiki.Li-polymers tsa polasetiki li entsoe ka liketane tsa li-subunits tse hokahantsoeng tse bitsoang monomers.Haeba li-monomers tse tšoanang li kopantsoe, ho etsoa homopolymer.Li-monomers tse fapaneng li hokahane ho theha li-copolymers.Li-homopolymers le li-copolymers li ka ba linear kapa branched.Lintho tse ling tsa polasetiki li kenyelletsa: Plastiki hangata e tiile.Li ka ba li-amorphous solids, li-crystalline solids kapa li-semi-crystalline solids (microcrystals).Hangata lipolasetiki ke li-conductors tse fokolang tsa mocheso le motlakase.Boholo ke li-insulators tse nang le matla a phahameng a dielectric.Li-polymer tsa khalase li atisa ho ba thata (mohlala, polystyrene).Leha ho le joalo, li-flakes tsa li-polymer tsena li ka sebelisoa e le lifilimi (mohlala, polyethylene).Hoo e ka bang li-plastiki tsohle li bontša bolelele ha li hatelloa 'me ha li hlaphoheloe ha khatello ea kelello e imoloha.Sena se bitsoa "creep".Plastiki e atisa ho tšoarella le ho senyeha butle haholo.
Lintlha tse ling ka lipolasetiki: Polasetiki ea pele e entsoeng ka botlalo e ne e le BAKELITE, e entsoeng ke LEO BAEKELAND ka 1907. O boetse a qapa lentsoe "polasetiki".Lentsoe "polastiki" le tsoa lentsoeng la Segerike PLASTIKOS, le bolelang hore e ka bōptjoa kapa ea bōptjoa.Hoo e ka bang karolo ea boraro ea polasetiki e hlahisoang e sebelisetsoa ho etsa liphutheloana.Karolo e 'ngoe ea boraro e sebelisetsoa ho kenya mahlakoreng le ho kenya lipeipi tsa metsi.Plastiki e hloekileng hangata ha e qhibilihe ka metsing ebile ha e na chefo.Leha ho le joalo, li-additives tse ngata tsa polasetiki li chefo 'me li ka kena tikolohong.Mehlala ea li-additives tse chefo li kenyelletsa phthalates.Li-polymer tse se nang chefo le tsona li ka fetoha lik'hemik'hale ha li futhumatsoa.
Ka mor'a ho bala see, na u tebisitse kutloisiso ea hau ea li-plastiki?
Nako ea poso: Sep-17-2022