Mumakore achangopfuura, nekukurumidzira kukura kwehupfumi, kutsvaga kwevanhu zvenyama nezvemweya kuri kuramba kuchikwira, kurongedza kwezvigadzirwa kune zvinodiwa zvakakwirira, kana vanhu vachitenga zvigadzirwa, kwete kungotarisa kunaka kwekurongedza, asi zvakare funga nezve zvakasiyana-siyana zvemamwe mabasa.Imhaka yekuenderera mberi kwekuvandudza kwekutsvaga kwevanhu kurongedza zvigadzirwa, zvakawanda zvitsva zvekutakura zvinhu zvinoramba zvichiiswa pakurongedza kwechigadzirwa.
Chikonzero nei tichigadzira zvinhu zvinoodegradable
Synthetic polymer zvinhu zvine zvakanakira uremu huremu, simba rakawanda, kugadzikana kwakanaka kwemakemikari uye mutengo wakaderera, nesimbi, huni, simende yave mbiru ina dzehupfumi hwenyika, inoshandiswa zvakanyanya mukurongedza zvigadzirwa.Zvisinei, tsvina yakawanda mushure mekushandiswa kwayo iri kuwedzera zuva nezuva, ichiva chitubu chekusvibiswa chena, kukuvadza kwakakomba kune zvakatipoteredza, zvichikonzera kusvibiswa kwemvura uye ivhu, kukuvadza kuhupenyu hwevanhu uye hutano, kune hupenyu hwehupenyu hwevanhu hunoita kuti huve husina kunaka. kukanganisa hakugone kufuratirwa.
Pamusoro pezvo, kugadzirwa kwezvinhu zvinogadzirwa zvepolymer -- iyo mbishi petroleum inogara yakapera rimwe zuva, saka zvinokasira kutsvaga zvinhu zvitsva zvine hushamwari kwezvakatipoteredza, kugadzirwa kweasina petroleum based polymers, uye biodegradable zvinhu inzira inoshanda yekuita. gadzirisa dambudziko iri.
Tsanangudzo yezvinhu zvinoodza
Biodegradable materials, inozivikanwawo se "green ecological materials", inoreva zvinhu zvinogona kushatisa pasi pechiito chevhu microorganisms uye enzymes.Kunyanya, zvinoreva kuti pasi pemamwe mamiriro, zvinogona kutungamira kune biodegradation yezvinhu zvepolymer pasi pekuita kwebhakitiriya, mold, algae uye mamwe masikirwo echisikigo.
Ideal degradation mechanism
Iyo yakanaka biodegradable zvinhu imhando yepolymer zvinhu zvine mashandiro akanaka, ayo anogona kuodzwa zvachose nemasikirini ezvakatipoteredza mushure memarara, uye pakupedzisira anoshandurwa kuita CO2 uye H2O, inova chikamu chekabhoni kutenderera muzvisikwa.
Nguva yekutumira: Mar-19-2023