I-polyurethane ingenye yezinto zepulasitiki ezisetshenziswa kakhulu emhlabeni, kodwa ngokuvamile azinakwa ezimpilweni zethu zansuku zonke. Nokho kungakhathaliseki ukuthi usekhaya, emsebenzini noma emotweni yakho, ngokuvamile ayikude, kanye nokusetshenziswa okujwayelekile okusukela kumatilasi nefenisha yokunamathisela izinto zokwakha, izingxenye zemoto ngisho namathe ezicathulo.

Kepha njengamanye amapulasitiki ahamba kakhulu engasasebenzi kabusha, ukusetshenziswa okwandile kwei-polyurethaneidala ukukhathazeka ngomthelela wayo kwezemvelo. Ukuze baqonde kangcono amathuba okubuyisela i-polyurethane ukuze igaywe kabusha futhi ithathelwe indawo amakhemikhali asetshenziswa ekukhiqizeni kwawo nezinye ezisekelwe esitshalweni, abacwaningi boMnyango Wezamandla wase-US (DOE) i-Argonne National Laboratory, iNyuvesi yaseNorthwestern kanye ne-Dow Chemical Company bahlanganyele ndawonye ukuze baqhube. ukuhlolwa kokuqala okuphelele "kwe-Material Flows of Polyurethane e-United States." Ucwaningo lusanda kushicilelwa kujenaliIsayensi Yezemvelo Nobuchwepheshe.

“Inhloso bekuwukuqonda ukuthi ukusebenzisa kwethu ama-polyurethanes e-United States kuhambisana kanjani nendilinga,” kuchaza omunye umbhali uJennifer Dunn, ongumdidiyeli womqondisi weNorthwestern's Center for Engineering Sustainability and Resilience futhi oyilungu loHlelo Lwepulasitiki. , Ecosystems and Public Health at the Institute for Sustainability and Energy at Northwestern (ISEN). "Besifuna futhi ukubona ukuthi akhona yini amathuba okuthuthukisa i-circularity kanye nokwandisa okuqukethwe kwe-bio-based polyurethanes."

Umnotho oqondile yilowo lapho kusetshenziswa izinto ezingavuthiwe ukwenza imikhiqizo bese zilahlwa ekugcineni kwezimpilo zabo. Emnothweni oyindilinga, lezo zinto ezifanayo ziyatholwa futhi ziphinde zisetshenziswe. Lokhu kunciphisa isidingo sokukhipha izinsiza zemvelo ezengeziwe, njengamafutha ezinto ezimbiwa phansi, kuyilapho kunciphisa inani lemfucuza ethunyelwa ezindaweni zokulahla imfucuza.

UDunn, ophinde abe nguprofesa ohlangene wobunjiniyela bamakhemikhali nobunjiniyela bezinto eziphilayo eMcCormick School of Engineering, eNorthwestern, uthe nakuba abacwaningi belindele ukuthola uhlelo oluqondile lwama-polyurethanes, “balubone ngombono wokugeleza kwezinto, kusukela ezintweni zokuqala kuze kube sekupheleni. yempilo, kwakuwumugqa osobala nje.”

Ngokusho kombhali osebenzisana naye u-Troy Hawkins, ohola i-Fuels and Products Group e-Argonne's Systems Assessment Center, lolu cwaningo lugqamise inani lezinto eziyinkimbinkimbi ezithinta indlela futhi nini i-polyurethanes ingatholakala futhi isetshenziswe kabusha.

Kepha njengamanye amapulasitiki ahamba kakhulu engasasebenzi kabusha, ukusetshenziswa okwandile kwei-polyurethaneidala ukukhathazeka ngomthelela wayo kwezemvelo. Ukuze baqonde kangcono amathuba okubuyisela i-polyurethane ukuze igaywe kabusha futhi ithathelwe indawo amakhemikhali asetshenziswa ekukhiqizeni kwawo nezinye ezisekelwe esitshalweni, abacwaningi boMnyango Wezamandla wase-US (DOE) i-Argonne National Laboratory, iNyuvesi yaseNorthwestern kanye ne-Dow Chemical Company bahlanganyele ndawonye ukuze baqhube. ukuhlolwa kokuqala okuphelele "kwe-Material Flows of Polyurethane e-United States." Ucwaningo lusanda kushicilelwa kujenaliIsayensi Yezemvelo Nobuchwepheshe.

“Inhloso bekuwukuqonda ukuthi ukusebenzisa kwethu ama-polyurethanes e-United States kuhambisana kanjani nendilinga,” kuchaza omunye umbhali uJennifer Dunn, ongumdidiyeli womqondisi weNorthwestern's Center for Engineering Sustainability and Resilience futhi oyilungu loHlelo Lwepulasitiki. , Ecosystems and Public Health at the Institute for Sustainability and Energy at Northwestern (ISEN). "Besifuna futhi ukubona ukuthi akhona yini amathuba okuthuthukisa i-circularity kanye nokwandisa okuqukethwe kwe-bio-based polyurethanes."

Umnotho oqondile yilowo lapho kusetshenziswa izinto ezingavuthiwe ukwenza imikhiqizo bese zilahlwa ekugcineni kwezimpilo zabo. Emnothweni oyindilinga, lezo zinto ezifanayo ziyatholwa futhi ziphinde zisetshenziswe. Lokhu kunciphisa isidingo sokukhipha izinsiza zemvelo ezengeziwe, njengamafutha ezinto ezimbiwa phansi, kuyilapho kunciphisa inani lemfucuza ethunyelwa ezindaweni zokulahla imfucuza.

UDunn, ophinde abe nguprofesa ohlangene wobunjiniyela bamakhemikhali nobunjiniyela bezinto eziphilayo eMcCormick School of Engineering, eNorthwestern, uthe nakuba abacwaningi belindele ukuthola uhlelo oluqondile lwama-polyurethanes, “balubone ngombono wokugeleza kwezinto, kusukela ezintweni zokuqala kuze kube sekupheleni. yempilo, kwakuwumugqa osobala nje.”

Ngokusho kombhali osebenzisana naye u-Troy Hawkins, ohola i-Fuels and Products Group e-Argonne's Systems Assessment Center, lolu cwaningo lugqamise inani lezinto eziyinkimbinkimbi ezithinta indlela futhi nini i-polyurethanes ingatholakala futhi isetshenziswe kabusha.