Ingabe i-PTFE ingagaywa kabusha?

Amapulasitiki e-PTFE (Polytetrafluoroethylene) ngokuvamile ane-opaque, futhi ayisithiyo esihle kakhulu segesi, umswakama, kanye nokumelana nokushisa.I-PTFEibonisa ukumelana kwamakhemikhali okuphawulekayo futhi ayincibiliki kuzo zonke izincibilikisi ezaziwayo.Ihlaselwa kuphela yizinsimbi ze-alkali ezincibilikisiwe kanye ne-fluorine emazingeni okushisa aphezulu.I-PTFE inokumelana okuhle kakhulu nama-asidi, ama-alkali nezincibilikisi.I-lubricous kakhulu, ine-coefficient ephansi kakhulu kunoma iyiphi i-polymer.Ipulasitiki engasebenzi ngamakhemikhali kulula ukuyihlanza futhi inokumelana okuhlukile komshini ngaphansi kwezimo ezimbi kakhulu.Ngaphezu kwalokho, i-PTFE ikwazi ukuzenzela futhi ayishi.

I-PTFE ayinalo uphawu lwayo lwekhodi yokugaya kabusha.Nokho, i-PTFE ingaphinda igaywe ibe neminye imikhiqizo eminingi.I-PTFE egaywe kabusha ingasetshenziselwa izinduku, amashubhu, itheyiphu nokunye.

I-Polytetrafluoroethylene (PTFE) iyimpahla yokwenziwa eyaqanjwa ngephutha ngasekupheleni kwawo-1930.Kwakungenkathi usokhemisi ezama ukwakha uhlobo olusha lwesiqandisi esisekelwe ku-perfluorethylene.Kunokuba athole i-chlorofluorocarbon, usosayensi wathola ukuthi i-perfluorethylene esetshenziswe kule nqubo isabela ngokuqukethwe kwensimbi esitsheni sayo futhi yenziwa i-polymer ngaphansi kwengcindezi.

Lokhu kwaziswa okusha kwasatshalaliswa ngezinga lezohwebo futhi kwagcina sekwaziwa ngokuthi yi-PTFE.Ngemva kwamashumi ambalwa eminyaka kamuva, yaziwa ngokuthi i-kitchenware yokuqala enganamathi.

Isetshenziswa kuphi i-PTFE?

Isetshenziselwa izinhlelo zokusebenza lapho izingxenye ezishelelayo zidingeka khona njengamabheringi angenalutho, amagiya, namapuleti ama-slide.I-PTFE eyimpuphu isetshenziswa ekwakhiweni kwe-pyrotechnic njengama-oxidizer kanye nezinsimbi eziyimpushana.PTFE isetshenziswa futhi ku-radiometry optical.Amashidi enziwe nge-PTFE asetshenziswa njengamakhanda okulinganisa kuma-spectroradiometers nama-radiometer e-broadband ngenxa yekhono lawo lokusabalalisa ukukhanya okudlulisela cishe kuphelele.I-PTFE iphinde isetshenziselwe ukumboza izinhlobo ezithile zezinhlamvu eziqinile ukuvimbela ukuguga okukhulayo kusibhamu sesibhamu esingabangelwa i-projectile eqinile.Ibuye isetshenziswe izinto zaselabhorethri ezifana neziqukathi, ama-stirrers, nama-tubing.Isetshenziswa njenge-tape yokuqinisa intambo ekufakweni kwamapayipi.

Kungani i-PTFE isetshenziswa ezintweni zikagesi?

I-PTFE inezinto ezihlukile zokuvikela eziyenza ilungele izingxenye ze-elekthronikhi.Ayina-conductive, incazelo;imelana nezinkundla zikagesi eziphakeme.Iyakwazi ukumelana nokushisa, amanzi kanye nokugqwala kwamakhemikhali.Ibuye isetshenziswe ekukhiqizeni imishini yaselabhorethri kanye nezinsiza ezihlangana ne-hydrofluoric acid.

I-PTFE inendawo ephansi kakhulu engqubuzanayo.Lokhu kwenza i-PTFE ifanelekele izingxenye zokukhiqiza ezidinga ukumelana nokungqubuzana njengamabheringi ebhola namagiya.

Ezinye izici ze-PTFE

• * isithiyo esihle kakhulu segesi, umswakama kanye nokushisa
• *inokumelana namakhemikhali okuphawulekayo futhi ayincibiliki kuzo zonke izincibilikisi ezaziwayo
• *ihlaselwe kuphela izinsimbi ze-alkali ezincibilikisiwe kanye ne-fluorine emazingeni okushisa aphezulu
• *inokumelana okuhle kakhulu nama-acids, i-alkali nama-solvents
• *lubricous kakhulu
• *ingafakwa inzalo nge-autoclave, igesi, ukushisa okomile kanye nesibulala-magciwane samakhemikhali
• *Ububi bokusebenzisa i-PTFE

Enye yezinto ezisetshenziswa kakhulu i-PTFE eye-cookware.Amapani e-PTFE awakwazi ukusetshenziswa uma ubona imihuzuko noma imifantu kuwo.Awukwazi ukusetshenziswa ngemuva kokuwohloka.Iqala ukonakala ngemva kokuba izinga lokushisa le-cookware lifinyelela ku-260 ˚C futhi libole ngaphezu kuka-350˚C.Lokhu kucekelwa phansi komkhiqizo kungaba yingozi ezinyonini futhi kungabangela izimpawu ezinjengomkhuhlane kubantu.

Izinkinga ekusetshenzisweni kabusha kwe-PTFE

Njenganoma yiziphi ezinye izinto, ukugaywa kabusha kwehlise izici zento yokuqala.Ku-PTFE, izici zayo eziningi zinhle ukuthi isengenzeka ngemva kokugaywa kabusha.Kwezinye izifundo, isilinganiso esingu-5-10% sisazovumela okokusebenza ukuthi kudlule njenge-PTFE emsulwa.Enye yezinkinga ezinkulu nge-PTFE egaywe kabusha ukuthi ayisebenzi ekusetshenzisweni kwesikhathi eside.

Kodwa, ukukufingqa konke, i-PTFE egaywe kabusha izohlala inezindawo ezingaphansi kwe-PTFE futhi ayikwazi ukuhambisana ngokuhamba kwesikhathi.Kuhlale kungcono ukulindela ukuthi ingafakwa ebucayini nokuthi inenani eliphansi kancane kuneyasekuqaleni.