Iinjineli ziye zaphuhlisa ukusebenza okuphezulu kwangaphandle kwe-PDRC (i-polymer yokupholisa ngemitha yelanga) enezikhewu zomoya ukusuka kwi-nanometers ukuya kwii-miniscels ezinokuthi zisetyenziswe njengendawo yokupholisa ngokuzenzekelayo kuphahla lwezindlu, izakhiwo, iitanki zamanzi, izithuthi kunye ne-spacecraft - nantoni na Basebenzisa indlela yokuguqula inqanaba elisekelwe kwisisombululo ukunika ipholima ulwakhiwo olufana nogwebu olunogwebu. Xa ibekwe esibhakabhakeni, iPolymer emhlophe yokwaleka iPDC ibonakalisa ukukhanya kwelanga kwaye ifudumale ukufikelela amaqondo obushushu angaphantsi kunezixhobo zokwakha eziqhelekileyo okanye nendawo engqongileyo. umoya.
Ngokunyuka kwamaqondo obushushu kunye namaza obushushu aphazamisa ubomi emhlabeni jikelele, izisombululo zokupholisa ziya zibaluleka ngakumbi.Lo ngumba ophambili, ngakumbi kumazwe asakhasayo, apho ubushushu behlobo bunokuba bugqithise kwaye kulindeleke ukuba buqina.Kodwa iindlela zokupholisa eziqhelekileyo, ezifana nomoya. ukulungiswa, kuyabiza, ukusebenzisa amandla amaninzi, kufuna ufikelelo olulungele umbane, kwaye ngokufuthi kufuna i-ozone-depleting okanye i-greenhouse-warming coolants.
Enye indlela kwezi ndlela zokupholisa ngamandla ngamandla yi-PDRC, into eyenzeka apho umphezulu uphole ngokuzenzekelayo ngokubonakalisa ukukhanya kwelanga kunye nobushushu obuphuma kwi-atmosphere epholileyo. ngesantya esiphezulu semitha ye-thermal (Ɛ) inokwandisa isibhakabhaka sokulahlekelwa bubushushu obukhazimlayo, i-PDC iyasebenza kakhulu.Ukuba i-R kunye ne-Ɛ iphezulu ngokwaneleyo, nokuba ilahleko yobushushu iyenzeka elangeni.
Ukuphuhlisa uyilo olusebenzayo lwe-PDC lucelomngeni: ezininzi izisombululo zoyilo zakutsha nje zintsonkothile okanye ziyabiza, kwaye azinakuphunyezwa ngokubanzi okanye zifakwe kuphahla kunye nezakhiwo ezinemilo eyahlukeneyo kunye nokwakheka. Ukuza kuthi ga ngoku, ngexabiso eliphantsi kwaye kulula ukuyifaka ipeyinti emhlophe ibe luphawu lwe-PDC. Nangona kunjalo, iingubo ezimhlophe zihlala zineebala ezifunxa ukukhanya kwe-ultraviolet kwaye azibonakalisi amaza amade okukhanya kwelanga kakuhle, ngoko ukusebenza kwazo kuphakathi nje.
Abaphandi bobuNjineli base-Columbia baye baqulunqa i-polymer yangaphandle ye-PDC esebenza kakhulu ene-nanometer-ukuya kwi-micron-scale izithuba zomoya ezinokuthi zisetyenziswe njengendawo epholileyo yomoya kwaye inokudaywa kwaye ipeyintwe kuphahla, kwizakhiwo, kwiitanki zamanzi, kwizithuthi, nakwiziphekepheke. - nantoni na enokuthi ifakwe ipeyinti.Basebenzisa indlela yokuguqulwa kwesigaba esisekelwe kwisisombululo ukunika i-polymer i-foam-efana nesakhiwo esifana ne-foam.Ngenxa yokwahlukana kwesalathisi se-refractive phakathi kwe-air voids kunye ne-polymer ejikelezileyo, i-air voids kwi-polymer ene-porous. I-polymer yenza mhlophe kwaye ithintele ukufudumeza kwelanga, ngelixa ukukhutshwa kwayo kuyivumela ukuba ikhuphe ngokufanelekileyo ubushushu esibhakabhakeni.
Ixesha lokuposa: Mar-18-2021