Bioplastics inogadzirwa ne-bio-based polymers uye inogadzirwa uchishandisa zviwanikwa uye zvinogonekazve, sechibage kana nzimbe.
Bioplastics inoshanda zvakada kufanana nemapurasitiki akagadzirwa kubva mupetroleum, uye ari kukurumidza kuvabata mukuzivikanwa sechinhu chekurongedza.Kufanotaura kunoshamisa kubva kumasaenzi ndeyekuti bioplastics inogona kuderedza kuburitswa kwekabhoni dhaibhoni ne70%.Iwo zvakare 65% yakawanda simba rinoshanda paanenge achigadzirwa, zvichiita kuti ive iyo inonyanya kugadzirisa zvakatipoteredza sarudzo.
Kunyange zvazvo kune mamwe marudzi akawanda ebioplastics, polylactic acid (PLA)-based packaging ndiyo inonyanya kushandiswa yakasiyana-siyana.Kune vanogocha vanotsvaga yakanaka asi ine chekuita nemamiriro ekunze kuti vapeke kofi yavo, PLA ine mikana mikuru.
Nekudaro, nekuti mabhegi ekofi ePLA anongodzokororwa uye anogona kuomeswa pasi pemamiriro ezvinhu chaiwo, ari panjodzi yekuwachwa.Vanogocha uye macafe ekofi anofanirwa kuzivisa vatengi nezve chimiro chePLA kurongedza uye kuraswa kwakakodzera sezvo mutemo unobata indasitiri yebioplastics iri kukurumidza kukura.
Ramba uchiverenga kuti udzidze nzira yekutaura kune vatengi kuti zvinotora nguva yakareba sei kuti mabhegi ekofi ePLA aparare.
PLA?
Bhizinesi rekugadzira fiber rakashandurwa naWallace Carothers, nyanzvi yemakemikari yekuAmerica uye muvambi, anozivikanwa zvakanyanya nekugadzira nylon uye polyethylene terephthalate (PET).
Mukuwedzera, akawana PLA.Carothers uye mamwe masayendisiti akawana kuti yakachena lactic acid inogona kushandurwa uye kugadzirwa kuita mapolymers.
Zvokudya zvechinyakare zvinochengetedza, zvinonhuwirira, uye zvinorapa zvinosanganisira lactic acid.Nekuivirisa nestarch nemamwe mapolysaccharides kana shuga yakawanda muzvinomera, inogona kushandurwa kuita mapolymer.
Iyo inoguma polymer inogona kushandiswa kugadzira isina-chepfu, biodegradable thermoplastic filaments.
Iwo ma mechanical uye thermal resistances asi zvakadaro anomanikidzirwa.Nekuda kweizvozvo, yakarasikirwa ne polyethylene terephthalate, iyo yaive yakanyanya kuwanikwa panguva iyoyo.
Zvisinei neizvi, PLA inogona kushandiswa mubiomedicine nekuda kwehuremu hwayo hwakadzikira uye biocompatibility, kunyanya setishu engineering scaffold material, sutures, kana screws.
Izvi zvinhu zvinogona kugara munzvimbo kwechinguva zvisati zvadzikisira zvega uye pasina kukuvadza nekuda kwePLA.
Nekufamba kwenguva, zvakaonekwa kuti kusanganisa PLA nechaicho starches kunogona kusimudzira mashandiro ayo uye biodegradability uku ichideredza mutengo wekugadzira.Izvi zvakabatsira mukugadzirwa kwefirimu rePLA raigona kushandiswa kugadzira mapeji anochinjika kana asanganiswa nejekiseni rekugadzira uye humwe tekinoroji yekunyungudika.
Vatsvagiri vanofungidzira kuti PLA ichave yakanyanya kutengwa mutengo kugadzira, iri nhau dzakanaka dzekofi macafe uye vanogocha.
Sezvo kudiwa kwekurongedza kuchinjika kuchikwira nekuda kwesarudzo yevatengi kune zvakatipoteredza uye inodzokorodza kurongedza zvinhu, musika wepasi rose wePLA unotarisirwa kudarika madhora 2.7 miriyoni panosvika 2030.
Pamusoro pezvo, PLA inogona kugadzirwa kubva kumarara ekurima uye emasango kudzivirira kukwikwidza nezvikafu.
Zvinotora nguva yakareba sei kuti mabhegi ekofi ePLA aputsike?
Mapolymer echinyakare akagadzirwa kubva mupetroleum anogona kutora kusvika chiuru chemakore kuora.
Neimwe nzira, kuparara kwePLA kuita carbon dioxide (CO2) uye mvura zvinogona kutora chero kubva pamwedzi mitanhatu kusvika makore maviri.
Zvisinei neizvi, zvivakwa zvekuunganidza zvePLA zvichiri kugadziridza kune iri kukura bioplastics bhizinesi.16% chete yemarara angangove ari kuunganidzwa muEuropean Union.
Nekuda kwekuwanda kwekurongedza kwePLA, zvinogoneka kuti isvibise hova dzakasiyana siyana, kusanganisa nemapurasitiki akajairwa, uye inopedzisira yave mumarapi kana kupisa.
Mabhegi ekofi akagadzirwa nePLA anofanirwa kuraswa panzvimbo yakasarudzika yemaindasitiri maanogona kuora zvachose.Nekuda kweimwe seti yetembiricha chaiyo uye huwandu hwekabhoni, okisijeni, uye nitrogen, kuita uku kunogona kutora mazuva anosvika zana nemakumi masere.
Kana PLA kurongedza ikasadzikisira pasi peaya mamiriro, maitiro anogona kuburitsa microplastics, iyo yakaipa kune nharaunda.
Nekuti kurongedza kwekofi hakuwanzo kugadzirwa kubva pane chimwe chinhu, maitiro acho anowedzera kuoma.Semuenzaniso, mazhinji emabhegi ekofi ane zippers, matai matani, kana degassing mavharuvhu.
Iyo inogona zvakare kuve yakamisikidzwa kuti ipe imwezve layer ye barrier defense.Nekuda kwekugona kuti chikamu chega chega chinoda kugadziriswa zvakasiyana, zvinhu zvakaita seizvi zvinogona kuita kuti mabhegi ekofi ePLA anetsa kurasa.
Kushandisa PLA kofi mabhegi
Kune vakawanda vanogocha, kushandisa PLA kurongedza kofi isarudzo iri nyore uye ine mutoro.
Icho chokwadi chekuti zvese zviri zviviri pasi uye kofi yakakangwa zvinhu zvakawoma chinhu chakakosha.Izvi zvinoratidza kuti mabhegi ekofi ePLA haafanire kucheneswa mushure mekushandiswa nekuti haana zvinosvibisa.
Pamusoro pezvo, vatengi vanogona kutsvagirwa nevanogocha nezvitoro zvekofi kuti vabatsire kudzivirira PLA kurongedza kubva kuguma mumarara.Vatengi vanofanirwa kuziva kuti ndeapi mabhegi ekofi ebhini rePLA anofanirwa kuiswa mushure mekushandiswa.Kudhinda kudzokorodza uye kupatsanura mirairo pane kofi kurongedza kuchaita izvi.
Vanogocha uye zvitoro zvekofi zvinogona kukurudzira vatengi kuti vadzose kurongedza kwavo kusina chinhu vachichinjana nekofi yakaderedzwa kana pasina nzvimbo dziri pedyo dzekuunganidza nekugadzirisa PLA.
Varidzi vebhizinesi vanogona kuita shuwa kuti mabhegi ekofi ePLA akashandiswa anounzwa kunzvimbo yakakodzera yekudzokorodza.
Zvinogona kuve nyore kurasa PLA kurongedza munguva pfupi iri kutevera.Zvikuru, nyika zana nemakumi manomwe neshanu dzakaita chisungo chekumisa kusvibiswa kwepurasitiki kuUnited Nations Environment Assembly muna 2022.
Nekuda kweizvozvo, hurumende dzakawanda dzinogona kuita mari mune ramangwana muzvivakwa zvinodiwa kugadzira bioplastics.
Bato rekutora bioplastics riri kuwedzera simba sezvo tsvina yepurasitiki ichiramba ichiparadza nharaunda uye ichikanganisa hutano hwevanhu nemhuka.
Nekushandira pamwe nenyanzvi yekurongedza kofi, unogona kushandisa eco-inoshamwaridzika kurongedza ine zvine chekuita uye isingakonzere nyaya nyowani kune chero munhu.
Mabhegi akasiyana ekofi kubva kuCYANPAK anowanikwa nePLA mukati.Vatengi vanogona kusarudza mhinduro inonyatso compost kana yasanganiswa nekraft bepa.
Isu tinopawo mapakeji anogona compostable, biodegradable, uye recyclable ayo anogadzirwa kubva kune zvinogonekazve, senge bepa remupunga.
Pamusoro pezvo, tinogona kushandisa kudhinda kwedhijitari kugadzirisa mabhegi ekofi kuitira kuti asanganise kudzokorora uye kupatsanura mirairo.Hazvinei nehukuru kana zvinhu, tinogona kupa yakaderera yakaderera kuodha huwandu (MOQs) yekurongedza nenguva yekuchinja yemaawa makumi mana uye nguva yekutumira yemaawa makumi maviri nemana.
Degassing mavharuvhu anonyatso shandiswa zvakare uye asina BPA anowanikwawo;zvinogona kudzokororwa pamwe chete nechigadziko chekofi.Aya mavharuvhu haangogadziri chigadzirwa chiri mushandisi-ushamwari kune vatengi asi zvakare kuderedza zvinokuvadza zvinokonzerwa nekofi kurongedza pane zvakatipoteredza.
Nguva yekutumira: Nov-29-2022