I-Polystyrene ingenye yepulasitiki esetshenziswa kakhulu.I-polystyrene enwetshiwe, i-thermoplastic, iyancibilika lapho ishiselwa futhi iguquke iqine uma ipholile.Inokushisa okushisayo okuhle kakhulu futhi okuhlala njalo, ukugoba okuyingqayizivele nokumelana nokushaqeka, ukulwa nokuguga nokuvimbela amanzi, ngakho-ke isetshenziswe kabanzi emikhakheni ehlukahlukene njengokwakhiwa, ukupakisha, imikhiqizo kagesi neye-elekthronikhi, imikhumbi, izimoto nezindiza zokukhiqiza, izinto zokuhlobisa, kanye nokwakhiwa kwezindlu.esetshenziswa kabanzi.Ngaphezu kwama-50% awo ngamaphakeji abamba i-electronic kanye nakagesi, amabhokisi ezinhlanzi kanye nemikhiqizo yezolimo kanye nokunye okugcinwa kuhlanzekile, okwenza ukuphila kwethu kube lula kakhulu.
Ukwakhiwa kwesitimu kwe-EPS - inqubo evamile embonini
Ngokuvamile inqubo yokubumba i-EPS ihlanganisa lezi zinyathelo ezibalulekile ezilandelayo: pre-foaming → ukuphulukisa → ukubumba.Ukukhanyisa ngaphambili ukufaka ubuhlalu be-EPS emgqonyeni womshini ocwayizayo ngaphambili, bese uwushisa ngesitimu uze uthambe.I-ejenti enegwebu (imvamisa engu-4-7% pentane) egcinwe ebuhlaluni be-EPS iqala ukubilisa futhi ihwamuke.Igesi ye-pentane eguquliwe yandisa ingcindezi ngaphakathi kobuhlalu be-EPS, okubenza bakhule ngevolumu.Ngaphakathi kwesivinini esivumelekile sokugwedla, isilinganiso esidingekayo sogwebu noma isisindo segram yezinhlayiyana singatholwa ngokulungisa izinga lokushisa langaphambi kokunwetshwa, ukucindezela kwesitimu, inani lokuphakelayo, njll.
Izinhlayiya zegwebu ezisanda kwakhiwa zithambile futhi zinelastic ngenxa yokuguquguquka kwe-ejenti enegwebu kanye nokufingqa kwe-ejenti esele enegwebu, futhi ingaphakathi lisesimweni se-vacuum futhi lithambile futhi linelastic.Ngakho-ke, kufanele kube nesikhathi esanele sokuthi umoya ungene kuma-micropores ngaphakathi kwezinhlayiya zegwebu ukulinganisa izingcindezi zangaphakathi nangaphandle.Ngesikhathi esifanayo, ivumela izinhlayiya ze-foam ezinamathiselwe ukuba zichithe umswakama futhi ziqede ugesi omile ngokwemvelo oqoqwe ukungqubuzana kwezinhlayiya ze-foam.Le nqubo ibizwa ngokuthi ukuphulukisa, ngokuvamile okuthatha cishe amahora angu-4-6.Ubuhlalu obunwetshiwe futhi omisiwe budluliselwa esikhunjini, futhi umusi wengezwe futhi ukuze wenze ubuhlalu buhlangane, bese bupholile futhi bubunjwe ukuze kutholwe umkhiqizo onegwebu.
Ingatholakala kusukela kunqubo engenhla ukuthi isitimu siwumthombo wamandla ashisayo obalulekile ekubumbeni kwegwebu lobuhlalu be-EPS.Kodwa ukushisisa kwesitimu nokupholiswa kombhoshongo wamanzi nakho kuyizixhumanisi ezibaluleke kakhulu zokusetshenziswa kwamandla kanye nokuphuma kwekhabhoni ohlelweni lokukhiqiza.Ingabe ikhona enye inqubo eyonga amandla eyengeziwe yokuhlanganisa igwebu lezinhlayiyana ngaphandle kokusebenzisa isitimu?
I-electromagnetic wave radio frequency melting, i-Kurt Esa Group (kamuva ebizwa ngokuthi “Kurt”) yaseJalimane inikeze impendulo yayo.
Lolu cwaningo olushintshashintshayo kanye nobuchwepheshe bokuthuthuka buhlukile kunqubo yesitimu evamile, esebenzisa amaza omsakazo ukufudumeza.Ukushisa kwamagagasi omsakazo kuyindlela yokushisa encike entweni ukuthi imunce amandla egagasi lomsakazo futhi iwaguqule abe amandla okushisa, ukuze wonke umzimba ufudumale ngesikhathi esisodwa.Isisekelo sokufezeka kwayo yinkambu eshintshashintshayo ye-dielectric.Ngokunyakaza kwe-high-frequency reciprocating yama-molecule e-dipole ngaphakathi komzimba oshisayo, "ukushisa kwangaphakathi kokungqubuzana" kukhiqizwa ukwandisa izinga lokushisa lezinto ezishisayo.Ngaphandle kwanoma iyiphi inqubo yokuqhuba ukushisa, ingaphakathi nangaphandle kwento ingashiswa.Ukushisa ngesikhathi esisodwa kanye nokushisa kanyekanye, isivinini sokushisa siyashesha futhi sifana, futhi inhloso yokushisa ingafinyelelwa kuphela ngengxenye noma izingxenye eziyishumi ezimbalwa zokusetshenziswa kwamandla wendlela yokushisa yendabuko.Ngakho-ke, le nqubo yokuphazamisa ifaneleka ngokukhethekile ukucubungula ubuhlalu obunwetshiwe ngezakhiwo zamangqamuzana e-polar.Ukwelashwa kwezinto ezingezona i-polar kuhlanganise nobuhlalu be-EPS, kudingekile kuphela ukusebenzisa izithasiselo ezifanele.
Ngokuvamile, ama-polymers angahlukaniswa abe ama-polar polar kanye nama-polymers angewona ama-polar, kodwa le ndlela yokuhlukanisa ijwayelekile futhi akulula ukuyichaza.Njengamanje, ama-polyethylene (i-polyethylene, i-polystyrene, njll.) ngokuyinhloko abizwa ngokuthi ama-polar angewona ama-polar, futhi ama-polymers aqukethe amaqembu e-polar ochungechungeni oluseceleni abizwa ngokuthi ama-polar polymers.Ngokuvamile, kungahlulelwa ngokwesimo samaqembu asebenzayo ku-polymer, njengama-polymers anamaqembu e-amide, amaqembu e-nitrile, amaqembu e-ester, ama-halogens, njll. a-polar, kuyilapho i-polyethylene, i-polypropylene ne-polystyrene Awekho amaqembu e-polar ochungechungeni lwe-equimolecular, ngakho-ke i-polymer nayo ayiyona i-polar.
Okusho ukuthi, inqubo yokwenza i-electromagnetic wave frequency melting idinga ugesi nomoya kuphela, futhi ayidingi ukufaka isistimu yesitimu noma idivayisi yokupholisa isitsha samanzi, elula futhi elula, futhi yonga amandla futhi ivikele imvelo. .Uma kuqhathaniswa nenqubo yokukhiqiza kusetshenziswa umusi, kungonga u-90% wamandla.Ngokuqeda isidingo sokusebenzisa isitimu namanzi, ukusebenzisa i-Kurtz WAVE FOAMER kungasindisa amalitha ayizigidi ezi-4 zamanzi ngonyaka, okulingana nokusetshenziswa kwamanzi ngonyaka okungenani abantu abayi-6,000.
Ngaphezu kokonga amandla nokuvikelwa kwemvelo, ukuncibilika kwefrikhwensi yomsakazo we-electromagnetic wave nakho kungakhiqiza imikhiqizo yegwebu eliphezulu.Ukusetshenziswa kwamagagasi kagesi kuphela ebangeni lemvamisa kungaqinisekisa ukuncibilika nokwakheka kwezinhlayiya zegwebu.Ngokuvamile, izidingo zokuzinza ze-valve yesitimu ziphezulu kakhulu kusetshenziswa inqubo ye-steam yendabuko, ngaphandle kwalokho kuzobangela ukuthi umkhiqizo unciphe futhi ube mncane kunosayizi onqunywe kusengaphambili ngemva kokupholisa.Ngokuhlukile ekubumbeni isitimu, izinga lokushwabana kwemikhiqizo ekhiqizwe yi-electromagnetic wave frequency melting molding lehla kakhulu, ukuzinza kwe-dimensional kuthuthukiswa kakhulu, kanye nokumuncwa kwezinhlayiya zegwebu umusi kanye nomswakama osele kanye ne-ejenti enegwebu esibunjeni esibangelwa ukufiphala. zinciphe kakhulu.Ividiyo, asiyizwe ndawonye!
Ngaphezu kwalokho, ubuchwepheshe bokuncibilika kwefrikhwensi yomsakazo buthuthukisa kakhulu izinga lokutholwa kwezinto zezinhlayiyana ezinegwebu.Imvamisa, ukugaywa kabusha kwemikhiqizo yegwebu kwenziwa ngomshini noma ngamakhemikhali.Phakathi kwazo, indlela yokuphinda isetshenziswe ngomshini iwukuqoba nokuncibilikisa ipulasitiki, bese uyisebenzisela ukulungisa izinto ezigaywe kabusha ezisezingeni eliphansi, futhi izinto ezibonakalayo zivame ukuba ngaphansi kwe-polymer yasekuqaleni (Umfanekiso 1).Ama-molecule amancane atholiwe abe esesetshenziswa njengezinto zokusetshenziswa ukulungisa izinhlayiya ezintsha zegwebu.Uma kuqhathaniswa nendlela yomshini, ukuzinza kwezinhlayiya ezintsha zegwebu kuyathuthukiswa, kodwa inqubo inokusebenzisa amandla aphezulu kanye nezinga eliphansi lokutakula.
Uma sithatha ipulasitiki ye-polyethylene njengesibonelo, izinga lokushisa lokubola kwalesi sici lidinga ukuba ngaphezu kuka-600 ° C, futhi izinga lokubuyisela i-ethylene monomer lingaphansi kuka-10%.I-EPS ekhiqizwe inqubo yesitimu evamile ingaphinda isetshenziswe kuze kufike ku-20% wezinto ezibonakalayo, kuyilapho i-EPS ekhiqizwe ubuchwepheshe be-radio frequency fusion inenani lokuphinda ligaywe elingu-70%, eliwufanela kahle umqondo “wokuthuthukiswa okuzinzile”.
Njengamanje iphrojekthi ka-Kurt ethi “I-Chemical-Free Recycling of EPS Materials by Radio Frequency Fusion Technology” iwine Umklomelo Wamandla We-Bavarian wango-2020.Njalo ngemva kweminyaka emibili, iBavaria iklomelisa abafezi abavelele emkhakheni wezamandla, kanti iBavarian Energy Prize isibe yimiklomelo ephakeme kakhulu emkhakheni wezamandla.Mayelana nalokhu, uRainer Kurtz, oyi-CEO yeKurtz Ersa, uthe: “Selokhu yasungulwa ngo-1971, uKurtz uqhubekile nokuhola ukuthuthukiswa kwemboni yokukhiqiza amagwebu, futhi uqhubekile nokuthuthukisa izinqubo ezisimeme zokufaka isandla ekukhiqizeni okusimeme emhlabeni. .Umnikelo.Kuze kube manje, u-Kurtz usesungule izinhlobonhlobo zobuchwepheshe obunamalungelo obunikazi ahamba phambili embonini.Phakathi kwazo, i-Kurtz WAVE FOAMER - ubuchwepheshe benqubo yokubumba i-foam ye-radio, engeyona nje kuphela eyonga amandla nemvelo, kodwa futhi ingakhiqiza igwebu eliphezulu, ishintshe ngokuphelele Ukukhiqizwa kwemikhiqizo ye-foam yendabuko, idala ikusasa eliluhlaza. ukucutshungulwa kwegwebu okusimeme”.
Njengamanje, ubuchwepheshe bokubumba igwebu lomsakazo we-Kurt sebuqale ukukhiqiza ngobuningi imikhiqizo yegwebu ye-EPS.Ngokuzayo, u-Kurt uhlela ukusebenzisa lobu buchwepheshe ezintweni eziwohlokayo nezinto ze-EPP.Emgwaqweni wentuthuko esimeme, sizoqhubekela phambili namakhasimende ethu.
Isikhathi sokuthumela: Jun-20-2022