Chikwama cha pulasitiki

Matumba apulasitiki amagawidwa m'magulu awiri.Chimodzi ndikuwola matumba ogula.Ndi chikwama chogulitsira chokonda zachilengedwe ndipo sichimayambitsa kuipitsa kulikonse komanso kuwononga chilengedwe.Matumba ogula.Chifukwa matumba apulasitiki osawonongeka adzawononga kwambiri chilengedwe, anthu tsopano amakonda kugwiritsa ntchito matumba ogula osawonongeka.Ndi kufunikira kowonjezereka kwa chitetezo cha chilengedwe, matumba apulasitiki omwe amagwiritsidwa ntchito adzakhala abweretsa mavuto aakulu ndi kulemetsa chilengedwe.Kufunika kwa kuwonongeka kwa matumba apulasitiki m'tsogolomu kudzapitirira kuwonjezeka.
Pulasitiki yowonongeka, yomwe imadziwikanso kuti pulasitiki yowonongeka kwa chilengedwe, imatanthawuza pulasitiki yomwe imaphatikizapo zowonjezera zowonjezera pakupanga kuti zichepetse kukhazikika kwake, ndipo zimakhala zosavuta kuwononga chilengedwe.Ndi chitukuko cha sayansi ndi ukadaulo, mitundu yosiyanasiyana ya zida zomwe zingalowe m'malo mwa pulasitiki wamba wa PE zimawonekera, kuphatikiza PLA, PHAS, PBA, PBS ndi zida zina za polima.Onse amatha kusintha matumba apulasitiki a PE.Matumba apulasitiki owonongeka omwe amawononga chilengedwe akugwiritsidwa ntchito kwambiri: madera akuluakulu ogwiritsira ntchito ndi monga malo olimapo, zikwama zapulasitiki zosiyanasiyana, matumba otaya zinyalala, zikwama zogulira m'malo ogulitsira, ndi ziwiya zotayidwa.
Pulasitiki yosasinthika imatanthawuza mapulasitiki omwe amayambitsa kuwonongeka ndi gawo la tizilombo toyambitsa matenda monga mabakiteriya, nkhungu (bowa) ndi algae zomwe zilipo m'chilengedwe.Pulasitiki yabwino kwambiri yomwe imatha kuwonongeka ndi chilengedwe ndi gawo lazinthu zapamwamba zama cell zomwe zimatha kuwonongeka kwathunthu ndi tizilombo toyambitsa matenda pambuyo pozisiya, zimatha kuwonongedwa kwathunthu ndi tizilombo toyambitsa matenda, ndipo pamapeto pake zimakhala zosakhazikika."Mapepala" ndi zinthu zomwe zimatha kuwonongeka, ndipo "pulasitiki yopangidwa" ndi zinthu za polima.Choncho, pulasitiki biodegradable ndi zinthu polima ndi chikhalidwe cha "mapepala" ndi "pulasitiki kupanga".Pulasitiki yosawonongeka ikhoza kugawidwa m'mitundu iwiri: pulasitiki yathunthu yomwe imatha kuwonongeka ndi pulasitiki yowononga
Pulasitiki woonongeka: Kuwononga pulasitiki wosawonongeka pakadali pano makamaka kumaphatikizapo kusinthidwa kwa wowuma (kapena kudzaza) polyethylene PE, polypropylene PP, polyvinyl chloride PVC, polystyrene PS, ndi zina zambiri.
Pulasitiki wathunthu wosawonongeka: Pulasitiki wathunthu wosawonongeka amapangidwa makamaka ndi ma polima achilengedwe (monga wowuma, cellulose, chitin) kapena zinthu zaulimi ndi zam'mbali.Polyester, polystrackic acid, wowuma / polyvinyl mowa.

Kukonzanso kwa zopangira zamatumba ogula
Thumba la pulasitiki lotha kuwonongeka limatchedwanso matumba ogulira omwe amawonongeka.Amagwiritsa ntchito wowuma wa zomera ndi ufa wa chimanga, ndi zina zotero. Amapangidwa kuchokera ku zomera.Zopangira izi sizingawononge thupi la munthu komanso chilengedwe.
Itha kuthandizidwa pamalo otsetsereka okhala ndi matumba ogula owonongeka.Zimangotenga nthawi kuti ziwonongeke kukhala particles zamoyo ndikumwedwa ndi nthaka.Chikwama cha pulasitiki chowola sichimangokhudza chilengedwe, komanso chikhoza kukhala feteleza wa zomera ndi mbewu, kulimbikitsa kukula kwa zomera.
Choncho, kugwiritsa ntchito matumba ogula zinthu zowonongeka tsopano kwatchuka, ndipo kugwiritsa ntchito matumba ogula osawonongeka akuchepanso pang'onopang'ono.Zikwama zogulira zosawonongeka sizingawononge thanzi la anthu komanso chilengedwe.
Kuwonongeka kwa matumba ogula osawonongeka
Zogwirizana ndi matumba ogula omwe amawonongeka ndi matumba ogula osawonongeka.Ndipotu, matumba ogula wamba amathanso kunyonyotsoka, koma adawonongeka kwa nthawi yayitali kwa zaka mazana awiri.Kuphatikiza apo, kugwiritsa ntchito matumba apulasitiki m'magulu a anthu ndikokulirapo.Ngati mugwiritsa ntchito matumba apulasitiki osasinthika, zipangitsa kuti chilengedwe cha dziko lapansi chiipire kwambiri.
Anthu alibe njira yabwino yobwezeretsanso zinyalala zamatumba ogula, zowotcha kapena kutayirapo.Palibe matumba ogula owonongeka angakhudze chilengedwe mosasamala kanthu za njira iti.Mwachitsanzo, kutentha kumatulutsa fungo loipa ndikutulutsa phulusa lakuda lakuda;ngati itatayidwa ndi dothi, dziko lapansi lidzatenga zaka mazana ambiri kuti liwole thumba la pulasitiki.