Zomangamanga zakhala zikugwiritsidwa ntchito kwa zaka zikwi zambiri.Akafuna malo okhala opepuka komanso omveka bwino, nsalu zopangidwa ndi zikopa za nyama ndi zinthu zonyamulika mosavuta zinali njira yothandiza kwambiri.Ku Roman Colosseum, Velarium yosinthika idapereka mthunzi kuti owonera azitha kuwona bwino.Tsopano, ethylene tetrafluoroethylene (ETFE) ikupereka mwayi watsopano.
Chogulitsa chatsopano mkati mwa mafakitale, ETFE ndi pulasitiki yopangidwa ndi fluorine yomwe imakhalabe yolimba pa kutentha kwakukulu ndipo imakhala yotsutsana kwambiri ndi dzimbiri.Anapangidwa kuchokera ku polytetrafluoro-ethylene (PTFE) -yomwe imadziwikanso kuti polima - nsalu yolimba, yopepuka, yosagwira moto yomwe idapangidwa poyambirira kuti ipange zovala zowunikira malo, koma kenako idagwiritsidwa ntchito popanga zomangamanga ndi ma envulopu owonekera.
ETFE ndi chiyani?Ngakhale kuti magalasi amapereka kuwala kwa dzuwa kofanana ndi kutsekemera, ETFE ndi yolimba kwambiri, yowonekera bwino, komanso yopepuka kwambiri-ndi pafupifupi 1 peresenti ya kulemera kwa galasi.Poyamba amagwiritsidwa ntchito pazaulimi, ETFE yakhala ikugwiritsidwa ntchito pazinthu zapamwamba monga Eden Project botanical attraction (Cornwall, England), Allianz Arena (kunyumba kwa mpira wa FC Bayern Munich), ndi Beijing National Aquatics Center-yodziwika bwino. Water Cube adawonetsedwa pa Masewera a Chilimwe a 2008.Kanema wa ETFE tsopano akuwoneka kuti ndi chinthu chofunikira kwambiri pakugwiritsa ntchito zotchingira zowonekera kuyambira padenga mpaka kumanga ma façade kupita kumayendedwe azikhalidwe zakuthambo kupita kuzinthu zazitali.
Zida zomangira zochepa zomwe zingafanane ndi ETFE chifukwa cha kusinthasintha kwake komanso magwiridwe antchito.Ku Nantong Park Bon-Garden Greenhouse yaku China, kutenthetsa kwa zinthuzo komanso mphamvu zopatsirana zopepuka zimathandizira ulimi wamaluwa wotukuka ndikukwaniritsa mawonekedwe apadera a dome.Ku Empire City Casino ku Yonkers Raceway ku New York, porte-cochere yokhala ndi 1020-m2(11,000-sf) filimu ya ETFE ya pneumatic ETFE ikuwonetsa kuthekera kwa zinthuzo kuti zikwaniritse zosowa zapadera komanso zofunikira - osapereka mawonekedwe owoneka bwino, komanso pogona ndi mthunzi kwa okhalamo omwe amayembekezera chitonthozo.
ETFE ndi chimodzi mwazinthu zopepuka komanso zowonekera bwino zomwe zilipo.Chifukwa cha kukangana kwake kochepa, fumbi kapena dothi silimamatirapo.Popeza ndi ultraviolet (UV) yowonekera, sichisintha kapena kufooketsa pakapita nthawi.Chogulitsa chokhazikika, zopangira za ETFE zitha kupangidwanso kukhala zinthu zatsopano za ETFE monga machubu, mawaya, kapena zoponya.
Ku Nanton Park Bon-Gardens Greenhouse ku China, msonkhano wodenga womwe umaphatikizapo machitidwe a filimu ya ethylene tetrafluoroethylene (ETFE) amathandizira kuti ulimi wamaluwa ukhale wotukuka komanso kukongola kowoneka bwino.
Makhalidwe amachitidweKanema wa ETFE amabweretsa zabwino zambiri kwa okhalamo komanso eni nyumba.Kanemayo akhoza kukhala pakati pa 90 ndi 95 peresenti yowonekera, kulola kufalitsa kwa UV ndi photosynthesis pazaulimi.Mawonekedwe a dzuwa a machitidwe a mafilimu a ETFE amasinthasintha, chifukwa amatha kuphatikizirapo maulendo angapo a frit pamagulu amodzi kapena angapo.
Mipangidwe yokhazikika kapena yosindikizidwa komanso mitundu ingapo ingagwiritsidwe ntchito panthawi yokulitsa kuti ipititse patsogolo kapangidwe kake ndikuthandizira kuwongolera mphamvu za dzuwa.Mafilimu a ETFE nawonso ndi otanuka kwambiri.Kufikira 600 peresenti pakusweka, akadali osalimba mwadongosolo.Mphamvu yokhazikika pamalire a elasticity / plasticity ndi 21 mpaka 23 N / mm2(3045 mpaka 3335 lbf/si), koma kulimba kwamphamvu mpaka pakusweka ndi 52 N/mm2(7542 lbf/si).Kwa mawerengedwe apangidwe, malire a 15 N / mm2(2175 lbf/si) amaonedwa kuti ndiwongoyerekeza.
ETFE sichimawonongeka poyang'anizana ndi kuipitsidwa kwa chilengedwe, kuwala kwa UV, mankhwala oopsa, kapena kutentha kwambiri, zomwe zimapangitsa kuti zikhale zokhalitsa kwambiri.Kanema wa ETFE alinso ndi pafupifupi 70 peresenti yotumizira ma acoustic, ndikupangitsa kuti ikhale yabwino kwa mapulojekiti omwe akuyembekezera phokoso lalikulu.Panthawi yokonza mapangidwe, kufalitsa mawu kuyenera kuganiziridwa, chifukwa kudzatumiza phokoso kupyola dongosolo la ETFE ndi malo oyandikana nawo.
Kuchokera ku extruding ya filimuyo kupita kumalo, ETFE ndi yokhazikika komanso yopatsa mphamvu.Poyerekeza ndi zida zina zomangira, njira yopangira mapangidwe imasiya kanyumba kakang'ono ka kaboni.Machitidwe a ETFE amakhala ndi zida zokhala ndi mphamvu zochepa zomwe zimatha kuchotsedwa komanso kubwezeredwa.Kutentha kwapang'onopang'ono kwa filimu ya ETFE kumapangitsa kuti ntchito yobwezeretsanso filimuyi ikhale yabwino komanso yotsika mtengo.ETFE imathandiziranso kutsekemera komanso kuwala kwa masana, zomwe zimathandizira kuti nyumbayi ikhale yogwira ntchito bwino padziko lonse lapansi.Ndiwopepuka kwambiri poyerekeza ndi zida zopikisana, zomwe zimalola makina othandizira magawo ndi maziko a konkriti kuti apangidwe moyenera komanso motsika mtengo, zomwe zimathandizira kutsika kwa mpweya.
Nthawi yotumiza: Feb-01-2017