Pulasitiki ndi imodzi mwazinthu zazikulu zoipitsa dziko lapansi, ndipo zimatenga zaka mazana ambiri kuti ziwonongeke mwachilengedwe. Malinga ndi malipoti atolankhani akunja, ofufuza a Yale University's School of Environment ndi University of Maryland agwiritsa ntchito matabwa kuti apange ma bioplastic olimba komanso okhazikika kuti athetse vuto limodzi lomwe lavuta kwambiri padziko lonse lapansi.

Wothandizira Pulofesa Yuan Yao wa Yale University's School of Environment ndi Pulofesa Liangbing Hu wa University of Maryland Center for Materials Innovation ndi ena anathandizana pa kafukufuku kuti amange matrix opangira matabwa achilengedwe kukhala matope. Ofufuzawo adati pulasitiki yopangidwa ndi biomass imawonetsa mphamvu zamakina komanso kukhazikika mukakhala ndi zakumwa, komanso kukana kwa UV. Itha kubwezeretsedwanso m'malo achilengedwe kapena kusinthidwa motetezeka. Poyerekeza ndi mapulasitiki opangidwa ndi petroleum ndi mapulasitiki ena owonongeka ndi biodegradable, kusintha kwa moyo wake kwachilengedwe kumakhala kochepa.

Yao adati: "Tapanga njira yosavuta komanso yowongoka yomwe ingagwiritse ntchito nkhuni kupanga mapulasitiki opangidwa ndi bio ndipo imakhala ndi makina abwino."

Kuti apange kusakaniza kwa slurry, ofufuzawo adagwiritsa ntchito tchipisi tamatabwa ngati zida zopangira ndipo adagwiritsa ntchito chosungunulira chakuya cha eutectic chosungunula komanso chosinthikanso kuti awononge povunda mu ufa. Mu osakaniza analandira, chifukwa cha nano-mulingo entanglement ndi hydrogen kugwirizana pakati pa regenerated lignin ndi mapadi yaying'ono / nano CHIKWANGWANI, nkhaniyo ali okhutira mkulu olimba ndi mkulu mamasukidwe akayendedwe, ndipo akhoza kuponyedwa ndi adagulung'undisa popanda akulimbana.

Ofufuzawo adachita kafukufuku wokwanira wa moyo wawo kuti ayese momwe chilengedwe chimakhudzira ma bioplastic ndi mapulasitiki wamba. Zotsatira zinasonyeza kuti pamene pepala la bioplastic linakwiriridwa m'nthaka, zinthuzo zinathyoledwa patatha milungu iwiri ndikuwonongeka kwathunthu pambuyo pa miyezi itatu; Kuphatikiza apo, ofufuzawo adati bioplastics imathanso kuphwanyidwa kukhala slurry kudzera pamakina oyambitsa. Chifukwa chake, DES imabwezeretsedwanso ndikugwiritsiridwa ntchito. Yao anati: "Ubwino wa pulasitikiyi ndikuti ukhoza kubwezeretsedwanso kapena kusinthidwa kukhala biodegraded. Tachepetsa zinyalala zomwe zimalowa m'chilengedwe."

Pulofesa Liangbing Hu adanena kuti bioplastic iyi ili ndi ntchito zambiri, mwachitsanzo, ikhoza kupangidwa kukhala filimu yogwiritsidwa ntchito m'matumba apulasitiki ndi kulongedza. Ichi ndi chimodzi mwazinthu zomwe zimagwiritsidwa ntchito kwambiri ndi mapulasitiki komanso chimodzi mwazomwe zimayambitsa zinyalala. Kuphatikiza apo, ofufuzawo adati bioplastic iyi imatha kupangidwa mosiyanasiyana, chifukwa chake ikuyembekezekanso kugwiritsidwa ntchito popanga magalimoto.

Gululi lidzapitirizabe kufufuza zotsatira za kukulitsa kukula kwa kupanga nkhalango, chifukwa kupanga kwakukulu kungafune kugwiritsa ntchito nkhuni zambiri, zomwe zingakhale ndi zotsatira zazikulu pa nkhalango, kasamalidwe ka nthaka, zachilengedwe, ndi kusintha kwa nyengo. Gulu lofufuza lagwira ntchito ndi akatswiri a zachilengedwe za m'nkhalango kuti apange chitsanzo cha nkhalango chomwe chimagwirizanitsa kukula kwa nkhalango ndi ndondomeko yopangira matabwa-pulasitiki.

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