1. Diversification yeindasitiri yekurongedza epurasitiki
Tichishandura nhoroondo yemabhegi epurasitiki, tichaona kuti kurongedza kwepurasitiki kune nhoroondo yemakore anopfuura 100.Iye zvino muzana remakore rechi21, sainzi uye tekinoroji zviri kuramba zvichikura, zvishandiso zvitsva uye matekinoroji matsva ari kuramba achibuda, polyethylene, bepa, aluminium foil, mapurasitiki akasiyana-siyana, zvinhu zvinoumbwa uye zvimwe zvekurongedza zviri kushandiswa zvakanyanya, aseptic kurongedza, shockproof packaging, anti- static packaging, anti-vana Packaging, musanganiswa kurongedza, composite packaging, zvekurapa kurongedza uye humwe hunyanzvi huri kuramba huchikura, uye mafomu matsva ekurongedza uye zvinhu zvakaita semabhegi epurasitiki ekumira abuda, ayo akasimbisa mabasa ekurongedza mukati. nzira dzakawanda.
2. Nyaya dzekuchengetedza zvinhu zvepurasitiki
Kare, mabhegi epurasitiki ekurongedza maive nemaplasticizers uye bisphenol A (BPA), izvo zvinokuvadza kuhutano hwevanhu, uye nhau dzakadaro dzaiwanzobuda.Naizvozvo, stereotype yevanhu yekurongedza epurasitiki "inotyisa uye haina hutano".Mukuwedzera, vamwe vatengesi vasina kutendeseka vanoshandisa zvinhu zvisingasviki zvinodiwa kuitira kuderedza mari, iyo inowedzera mufananidzo wakashata wezvinhu zvepurasitiki.Nekuda kweiyi mhedzisiro yakaipa, vanhu vane imwe nhanho yekuramba kurongedza epurasitiki, asi kutaura zvazviri, mapurasitiki anoshandiswa kurongedza chikafu ane yakazara seti yeEU nemitemo yenyika, uye zvigadzirwa zvinoshandiswa nemabhizinesi zvinofanirwa kusangana nezvinodiwa nemirairo iyi. , kusanganisira kune mitemo yakasimba yeEU uye yakadzama kwazvo REACH mirau pazvinhu zvepurasitiki zvinosangana nechikafu.
IBritish Plastics Federation BPF yakaratidza kuti ikozvino purasitiki yekuputira haisi yakachengeteka chete, asiwo inopa mupiro wakakosha kune hutano hweveruzhinji uye kufambira mberi kwevanhu.
3. Yakaora biopolymers inova sarudzo nyowani yekurongedza zvinhu
Kubuda kwezvinhu zvinoora zvinoita kuti zvinhu zvekurongedza ive sarudzo nyowani.Kugadzikana kwechikafu, kuchengetedzeka uye kunaka kweiyo biopolymer zvinhu kurongedza zvakayedzwa kakawanda uye nekusimbiswa, izvo zvakaratidza zvizere kuti biodegradable epakeji mabhegi ndiwo akakwana echikafu kurongedza munyika.
Parizvino, biodegradable polymers inogona kukamurwa muzvikamu zviviri: zvakasikwa uye zvekugadzira.Mapolymeri echisikigo anokanganisa anosanganisira starch, cellulose, polysaccharides, chitin, chitosan uye zvinobva kwavari, nezvimwe;synthetic degradable polymers akakamurwa kuita mapoka maviri: artificial uye mabhakitiriya synthesis.Mapolymer anoshatisa akagadzirwa nemabhakitiriya anosanganisira poly Hydroxyalkyl alcohol esters (PHAs), poly(malate), mapolymer ekugadzira anoshatisa anosanganisira polyhydroxyesters, polycaprolactone (PCL), polycyanoacrylate (PACA), nezvimwe.
Mazuva ano, nekuenderera mberi kwekuvandudzwa kwehupenyu hwezvinhu, vanhu vanonyanya kutarisisa kurongedza kwezvigadzirwa, uye kuchengetedzwa nekuchengetedzwa kwezvakatipoteredza kwekurongedza zvave kuwedzera kujeka zvinangwa.Naizvozvo, maitiro ekutanga ane hushamwari kwezvakatipoteredza uye asina kusvibiswa-isina girinhi kurongedza yave nyaya nyowani iyo makambani ekurongedza munyika yangu atanga kutarisa pairi.
Nguva yekutumira: Jan-03-2023