Izakhiwo zokuxinana zisetyenziswe kwiwaka leminyaka.Xa abantu bomthonyama babefuna ikhusi elikhaphukhaphu nelinesakhiwo esiphilileyo, amalaphu enziwe ngezikhumba zezilwanyana nezinto ezinokuthuthwa ngokulula ayelelona sicombululo.Kwi-Roman Colosseum, iVelarium ebuyiselwayo ibonelele ngomthunzi ukuze ube namava amnandi ababukeli.Ngoku, i-ethylene tetrafluoroethylene (ETFE) inika amathuba amatsha.
Imveliso entsha kwishishini, i-ETFE yiplastiki esekelwe kwi-fluorine ehlala yomelele kuluhlu olubanzi lwamaqondo obushushu kwaye ixhathisa kakhulu kwi-corrosion.Yaphuhliswa ukusuka kwi-polytetrafluoro-ethylene (PTFE)-eyaziwa ngokuba yi-polymer-i-membrane eyomeleleyo, ekhaphukhaphu, engacimi umlilo eyayilungiselelwe isambatho sokuhlola indawo, kodwa kamva isetyenziselwa ukusetyenziswa kwezakhiwo kunye neimvulophu ezicacileyo.
Yintoni i-ETFE?Nangona izakhiwo zeglasi zibonelela ngokuthelekisa ukukhanya kwelanga kunye nokugquma, i-ETFE yomelele kakhulu, icace ngakumbi, kwaye ilula kakhulu-imalunga nepesenti enye ubunzima beglasi.Ekuqaleni isetyenziswe kwizicelo zezolimo, i-ETFE sele isetyenziswe kwiiprojekthi eziphezulu ezifana ne-Eden Project botanical attraction (Cornwall, eNgilani), i-Allianz Arena (ikhaya lebhola lebhola le-FC Bayern Munich), kunye ne-Beijing National Aquatics Centre-edumileyo. Ityhubhu yamanzi iboniswe kwiMidlalo yeHlobo ka-2008.Ifilimu ye-ETFE ngoku ithathwa njengesixhobo seprimiyamu kwizicelo zokugquma elubala ukusuka eluphahleni ukuya kulwakhiwo lwe-façade ukuya kwizicelo zemveli zesibhakabhaka ukuya kwizakhiwo ezinde.
Zimbalwa izinto zokwakha ezinokuhambelana ne-ETFE ngenxa yokuguquguquka koyilo kunye nexabiso lokusebenza.KwiNantong Park yeBon-Garden Greenhouse yaseTshayina, ukusebenza kwemathiriyeli kunye neempawu zokuhambisa ukukhanya zixhasa ulimo lwezitiya oluchumayo ngelixa lusaphunyezwa uyilo olulodwa olukhanyisiweyo lwedome.Kwi-Empire City Casino eYonkers Raceway eNew York, i-porte-cochere ene-1020-m.2(I-11,000-sf) inkqubo yokuphahla ifilimu ye-ETFE ye-pneumatic ibonisa ukukwazi kwezinto eziphathekayo ukuhlangabezana neemfuno zobuhle kunye neemfuno ezisebenzayo-ukubonelela kungekuphela nje into yokuyila amehlo, kodwa kunye nekhusi kunye nomthunzi kubahlali abanokulindela okuphezulu kwenduduzo.
I-ETFE ikwayenye yezona zinto zikhaphukhaphu nezingafihliyo zokugquma ezikhoyo.Ngenxa ye-coefficient ephantsi yokukhuhlana, akukho luthuli okanye ukungcola okunamathela kuyo.Njengoko i-ultraviolet (UV) iyabonakala, ayiguquki kwaye ayibi buthathaka ngokwenkqubo ngokuhamba kwexesha.Imveliso ezinzileyo kakhulu, imveliso ye-ETFE inokuphinda iguqulwe ibe yimveliso emitsha ye-ETFE efana nezixhobo zetyhubhu, iingcingo, okanye ukuphosa.
E-Nanton Park Bon-Gardens Greenhouse e-China, indibano yophahla equka i-ethylene tetrafluoroethylene (ETFE) ixabiso lefilimu yefilimu inegalelo kwi-horticulture ekhulayo kunye nobuhle obubonakalayo.
Iimpawu zokusebenzaIfilimu ye-ETFE izisa iinzuzo ezininzi kubahlali kunye nomnini wesakhiwo.Ifilimu inokuba phakathi kwe-90 kunye ne-95 yeepesenti ecacileyo, ivumela ukuhanjiswa kwe-UV kunye ne-photosynthesis kwizicelo zezolimo.Uluhlu lwentsebenzo yelanga yeenkqubo zefilimu ze-ETFE nazo ziguquguqukayo, njengoko zinokubandakanya iipateni ezininzi zefrit kwisinye okanye kwiileyile ezininzi.
Iipateni eziqhelekileyo okanye eziqhelekileyo eziprintiweyo kunye noluhlu lwemibala lunokusetyenziswa ngexesha lenkqubo ye-extrusion ukubonelela ngokuqhubekayo koyilo kunye nesakhiwo sonke kunye negalelo kwiipropati zokulawula ilanga.Iifilimu ze-ETFE nazo zinwebeka kakhulu.Ukuya kuthi ga kwi-600 pesenti kwindawo yokuqhawuka, basaxhathisa ngokwesakhiwo.Amandla okuqina kumda we-elasticity / plasticity yi-21 ukuya kwi-23 N / mm2(3045 ukuya ku-3335 lbf/si), kodwa ukomelela ukuya kwindawo yokwaphuka yi-52 N/mm2(7542 lbf/si).Kubalwa kolwakhiwo, umda we-15 N/mm2(2175 lbf/si) ithathwa njengoqikelelo olubambekayo lokwenene.
I-ETFE ayithobi phantsi kokuvezwa kokungcoliseka kwendalo, ukukhanya kwe-UV, iikhemikhali ezinobunzima, okanye amaqondo obushushu agqithisileyo, okwenza kube yinto ehlala ixesha elide.Ifilimu ye-ETFE ikwanayo malunga neepesenti ze-70 zokuhanjiswa kwe-acoustic, okwenza kube yinto efanelekileyo kwiiprojekthi ezilindele ingxolo enkulu.Ngethuba lophuhliso loyilo, ukuhanjiswa kwesandi kufuneka kuthathelwe ingqalelo, njengoko ngokuqinisekileyo kuya kuhambisa isandi ngaphaya kwenkqubo ye-ETFE kunye neendawo ezikufutshane ezikufutshane.
Ukususela kwi-extruding yefilimu ukuthutha ukuya kwindawo, i-ETFE izinzileyo kwaye inamandla okusebenza.Xa kuthelekiswa nezinye izinto zokugquma, inkqubo yoyilo-yokwakha ishiya indawo encinci yekhabhoni.Iisistim ze-ETFE ziquka izixhobo ezinamandla aphantsi adityanisiweyo anokuchithwa kwaye aphinde asetyenziswe.Iqondo lokushisa eliphantsi elithambileyo lefilimu ye-ETFE yenza inkqubo yokubuyisela ifilimu ngokufanelekileyo kunye noqoqosho.I-ETFE iphinda iphucule ukugquma kunye nokukhanya kwemini, inegalelo ekusebenzeni kwamandla ehlabathi jikelele.Ikwalula ngokungaqhelekanga xa kuthelekiswa nezinto ezikhuphisanayo, ezivumela iinkqubo zenkxaso ye-substructure kunye neziseko zekhonkrithi ukuba ziyilwe ngokufanelekileyo kwaye zingabizi kakhulu, zifake isandla ekunciphiseni i-carbon footprint.
Ixesha lokuposa: Feb-01-2017