"Plasitiki yakasvibiswa" ndiyo mhinduro inokosha yekudzora kusvibiswa kwepurasitiki.
Kushandiswa kwemapurasitiki asina kukanganisa kunorambidzwa. Chii chinogona kushandiswa? Nzira yekuderedza sei kusvibiswa kwepurasitiki? Rega plastiki ishatise? Ita kuti ive chinhu chinochengetedza zvakatipoteredza. Asi, mapurasitiki anoodegradable anogona kunyatso kudzikisa kusvibiswa kwepurasitiki? Kana zvimwe zvekuwedzera zvikawedzerwa kupurasitiki kuti iite kuti iparare, uye ichiri kubva papurasitiki, ichokwadi here kuti haina kusvibiswa kune zvakatipoteredza? Vanhu vakawanda havana chokwadi nazvo. Vamwe vanhu vanotofunga kuti iyi ingori kutenderera kutsva kweindasitiri carnival. Naizvozvo, kune akawanda mapurasitiki anoparara ane hutsika husina kuenzana uye mutengo pamusika. Ichi chinhu chakanaka here kana chakaipa? Ichaunza dzvinyiriro itsva yezvakatipoteredza here?
Kutanga, ngatizivise mapurasitiki anoparara. Mapurasitiki anoparara akakamurwa kuita biodegradable mapurasitiki, thermal oxidative degradation mapurasitiki, photodegradable mapurasitiki uye compostable mapurasitiki. Iwo ese "anoora", asi mutengo wemapurasitiki anoshatisa oxidatively uye mapurasitiki anogona kuomeswa kakati wandei akasiyana neaya anoodza biodegradable uye mapurasitiki anogona compostable. Mapurasitiki anoshatisa okisijeni uye mapurasitiki asingaworike chiedza anonzi “anonyangarika” pasi pano pashure pokunge aiswa mukupisa kana kuti chiedza kwenguva yakati. Asi izvi zvinodhura uye "zviri nyore kunyangarika" izvo zvinonzi "PM2.5 yeindasitiri yemapurasitiki." Nekuti idzi mbiri tekinoroji dzekudzikisira dzinogona kungosvibisa mapurasitiki kuita twudiki twusingaoneki, asi haagone kuita kuti anyangarika. Zvimedu izvi hazvionekwe mumhepo, ivhu nemvura nekuda kwehunhu hwazvo hudiki uye hwakareruka. Z inopedzisira yafemerwa nezvipenyu.
Kutanga muna Chikumi 2019, Europe yakarambidza kushandiswa kwezvinhu zvinoraswa zvakagadzirwa nemapurasitiki anopisa oxidatively, uye Australia ichabvisa mapurasitiki akadaro muna 2022.
MuChina umo “degradation fever” ichangobva kubuda, “mapurasitiki anoshatisa” seaya achiri kukwezva nhamba huru yevatengi vanoda kutenga “mabhegi epurasitiki anoora” nemutengo wakaderera asi vasingazivi chakavanzika. Iyo "Plastiki Restriction Order" yakapihwa muna 2020 inorambidza kushandiswa kwe "asina-kuora mabhegi epurasitiki" uye haataure kuti ndeapi mabhegi epurasitiki anoshatisa anofanirwa kushandiswa. Nekuda kwemutengo wakakwira wemapurasitiki anogona kucheneswa, mapurasitiki ekupisa oxidative degradation, mapurasitiki anogona kuomeswa, kana bio-based hybrid mapurasitiki zvakare sarudzo dzakanaka kunzvimbo dzisingade kushandiswa kwemapurasitiki akazara biodegradable. Kunyangwe iyi plastiki isingagone kuderedzwa zvachose, chikamu chePE chisipo.
Nekudaro, mumusika une bongozozo, zvinowanzoomera vatengi kuti vaone chikamu chemapurasitiki anoparara. Muchokwadi, mabhizinesi mazhinji haazive mutsauko uripo pakati pemapurasitiki anonyatso kuparara uye thermally oxidatively degradable mapurasitiki, light-degradable mapurasitiki uye bio-based hybrid mapurasitiki. Vanowanzosarudza yekupedzisira yakachipa, vachifunga kuti inoshatisa zvizere. Ichi ndicho chikonzero vatengi vazhinji vachati: "Sei mutengo wako weyuniti uchidhura kakawanda kupfuura vamwe? Semugadziri, hazvigone kutsausa vatengi nekuisa mazita emasampuli ane 'kuora' pane zvigadzirwa zvakadaro.
Plastiki yakafanira inoparara inofanira kunge iri "yakazara biodegradable material." Parizvino, iyo inonyanya kushandiswa biodegradable zvinhu ndeye polylactic acid (PLA), iyo inogadzirwa ne biomaterials senge starch uye chibage. Kuburikidza nemaitiro akadai sekuvigwa kwevhu, kuita manyowa, kushatiswa kwemvura yakachena, uye kushatiswa kwegungwa, chinhu ichi chinogona kuderedzwa zvachose kuita mvura uye kabhoni dhayokisaidhi nema microorganisms pasina kukonzera kumwe kurema kune zvakatipoteredza.
Mumaguta umo "kurambidzwa kwepurasitiki" kwaitwa, tinogona kuona mabhegi epurasitiki anoodegradable anosangana neiyo G standard. Pazasi payo, unogona kuona zviratidzo zve "PBAT + PLA" uye "jj" kana "bhinzi inomera". Parizvino, rudzi urwu chete rwezvinhu zvinoparadza izvo zvinosangana neyakajairwa ndiyo yakanakira inoshatisa zvinhu izvo zvisina kukanganisa nharaunda.
Dingli Packaging inovhura rwendo rwegirini rwekurongedza iwe!
Nguva yekutumira: Jan-07-2022