Polyurethane ndi imodzi mwazinthu zapulasitiki zomwe zimagwiritsidwa ntchito kwambiri padziko lonse lapansi, koma nthawi zambiri zimamanyalanyazidwa m'moyo wathu watsiku ndi tsiku.Komabe, kaya muli kunyumba, kuntchito kapena m'galimoto yanu, nthawi zambiri sikukhala kutali, komwe kumagwiritsidwa ntchito nthawi zambiri kuyambira pa matiresi ndi mipando yanyumba mpaka kumangirira, zida zamagalimoto ngakhalenso nsapato.

Koma monga momwe zimakhalira ndi mapulasitiki ena omwe sagwiritsidwanso ntchito, kugwiritsidwa ntchito kofala kwapolyurethaneikubweretsa nkhawa zakukhudzidwa kwa chilengedwe.Kuti amvetse bwino za mwayi wobwezeretsanso polyurethane yobwezeretsanso ndikusinthanso mankhwala omwe amagwiritsidwa ntchito popanga ndi njira zina zopangira mbewu, ofufuza ochokera ku US Department of Energy's (DOE) Argonne National Laboratory, Northwestern University ndi The Dow Chemical Company adagwirizana kuti achite. kuwunika koyamba kokwanira kwa "Material Flows of Polyurethane ku United States."Kafukufukuyu adasindikizidwa posachedwa m'magaziniEnvironmental Science & Technology.

"Cholinga chake chinali kumvetsetsa momwe ma polyurethanes amagwiritsidwira ntchito mozungulira ku United States," adalongosola mlembi wina Jennifer Dunn, yemwe ndi wotsogolera bungwe la Northwestern's Center for Engineering Sustainability and Resilience komanso membala wa Program on Plastics. , Ecosystems and Public Health ku Institute for Sustainability and Energy at Northwestern (ISEN)."Tinkafunanso kuwona ngati pali mwayi wowonjezera kuzungulira ndikuwonjezera zomwe zili mu polyurethanes."

Chuma chofananira ndi chimodzi chomwe zida zopangira zimagwiritsidwa ntchito popanga zinthu kenako zimatayidwa kumapeto kwa moyo wawo.Mu chuma chozungulira, zinthu zomwezo zimabwezedwanso ndikugwiritsiridwa ntchito.Izi zimachepetsa kufunikira kochotsa zinthu zina zachilengedwe, monga mafuta oyaka, ndikuchepetsa kuchuluka kwa zinyalala zomwe zimatumizidwa kumalo otayirako.

Dunn, yemwenso ndi pulofesa wothandizana nawo waukadaulo wamankhwala ndi biological ku Northwestern's McCormick School of Engineering, adati ngakhale ofufuza akuyembekezeka kupeza njira yayikulu yopangira ma polyurethanes, "powona izi kudzera pamawonekedwe azinthu, kuyambira poyambira mpaka kumapeto. za moyo, zinali za mzere woonekeratu.”

Malinga ndi wolemba mnzake Troy Hawkins, yemwe amatsogolera Gulu la Mafuta ndi Zamgulu mu Argonne's Systems Assessment Center, kafukufukuyu adawonetsa zovuta zingapo zomwe zimakhudza momwe komanso nthawi yomwe ma polyurethanes angabwezedwe ndikusinthidwanso.

Koma monga momwe zimakhalira ndi mapulasitiki ena omwe sagwiritsidwanso ntchito, kugwiritsidwa ntchito kofala kwapolyurethaneikubweretsa nkhawa zakukhudzidwa kwa chilengedwe.Kuti amvetse bwino za mwayi wobwezeretsanso polyurethane yobwezeretsanso ndikusinthanso mankhwala omwe amagwiritsidwa ntchito popanga ndi njira zina zopangira mbewu, ofufuza ochokera ku US Department of Energy's (DOE) Argonne National Laboratory, Northwestern University ndi The Dow Chemical Company adagwirizana kuti achite. kuwunika koyamba kokwanira kwa "Material Flows of Polyurethane ku United States."Kafukufukuyu adasindikizidwa posachedwa m'magaziniEnvironmental Science & Technology.

"Cholinga chake chinali kumvetsetsa momwe ma polyurethanes amagwiritsidwira ntchito mozungulira ku United States," adalongosola mlembi wina Jennifer Dunn, yemwe ndi wotsogolera bungwe la Northwestern's Center for Engineering Sustainability and Resilience komanso membala wa Program on Plastics. , Ecosystems and Public Health ku Institute for Sustainability and Energy at Northwestern (ISEN)."Tinkafunanso kuwona ngati pali mwayi wowonjezera kuzungulira ndikuwonjezera zomwe zili mu polyurethanes."

Chuma chofananira ndi chimodzi chomwe zida zopangira zimagwiritsidwa ntchito popanga zinthu kenako zimatayidwa kumapeto kwa moyo wawo.Mu chuma chozungulira, zinthu zomwezo zimabwezedwanso ndikugwiritsiridwa ntchito.Izi zimachepetsa kufunikira kochotsa zinthu zina zachilengedwe, monga mafuta oyaka, ndikuchepetsa kuchuluka kwa zinyalala zomwe zimatumizidwa kumalo otayirako.

Dunn, yemwenso ndi pulofesa wothandizana nawo waukadaulo wamankhwala ndi biological ku Northwestern's McCormick School of Engineering, adati ngakhale ofufuza akuyembekezeka kupeza njira yayikulu yopangira ma polyurethanes, "powona izi kudzera pamawonekedwe azinthu, kuyambira poyambira mpaka kumapeto. za moyo, zinali za mzere woonekeratu.”

Malinga ndi wolemba mnzake Troy Hawkins, yemwe amatsogolera Gulu la Mafuta ndi Zamgulu mu Argonne's Systems Assessment Center, kafukufukuyu adawonetsa zovuta zingapo zomwe zimakhudza momwe komanso nthawi yomwe ma polyurethanes angabwezedwe ndikusinthidwanso.