PTFE (Polytetrafluoroethylene) mapurasitiki ane opaque, uye inodzivirira yakanakisa kugasi, mwando, uye kuramba kupisa.PTFEinoratidza kumira kwemakemikari kunoshamisa uye hainyunguriki mune zvese zvinonyungudutsa zvinozivikanwa.Inorwiswa chete nesimbi yakanyungudutswa yealkali uye fluorine pakupisa kwakanyanya.PTFE ine yakanakisa kuramba kune asidhi, alkalis uye zvinonyungudutsa.Iyo yakanyanya lubricous, ine yakaderera coefficient yepi polymer.Iyo makemikari inert plastiki iri nyore kuchenesa uye ine yakasarudzika mechanical resistance pasi pemamiriro akanyanya.Pamusoro pezvo, PTFE inogoneka uye isingabatike.
PTFE haina chiratidzo chayo chekudzokorora kodhi.Nekudaro, PTFE inogona kudzokororwa kuita zvimwe zvigadzirwa zvakawanda.Yakadzokororwa PTFE inogona kushandiswa kune tsvimbo, tubing, tepi uye nezvimwe.
Polytetrafluoroethylene (PTFE) chinhu chekugadzira chakagadzirwa netsaona mukupera kwema1930.Paive apo kemisiti aiedza kugadzira mhando nyowani yeperfluorethylene-based refrigerant.Panzvimbo pekuwana chlorofluorocarbon, musayendisiti akawana kuti perfluorethylene yakashandiswa mukuita iyi yaibata nesimbi yemukati memudziyo wayo uye yakaitwa polymer pasi pekumanikidzwa.
Ichi chinyorwa chitsva chakagoverwa pachiyero chekutengeserana uye chakazozivikanwa sePTFE.Mushure memakumi emakore akati wandei gare gare, yaizivikanwa seyekutanga isina-tsvimbo kitchenware.
PTFE inoshandiswa kupi?
Inoshandiswa pakushandisa panotsvedza zvikamu zvinodiwa senge mabhengi akajeka, magiya, uye siraidhi plates.Powdered PTFE inoshandiswa muzvinyorwa zvepyrotechnic se oxidizers pamwe chete nehupfu hwesimbi.PTFE inoshandiswawo mu optical radiometry.Mashizha akagadzirwa kubva kuPTFE anoshandiswa sekuyeresa misoro muma spectroradiometers uye Broadband radiometers nekuda kwekukwanisa kwayo kuparadzira chiedza chinotapudza zvinenge zvakakwana.PTFE inoshandiswawo kupfekedza mamwe marudzi emabara akaomeswa kudzivirira kuwedzera kupera kwepfuti yepfuti. iyo yakaoma projectile.Iyo inoshandiswawo murabhoritari zvinhu zvakadai semagaba, stirrers, uye tubing.Inoshandiswa setepi yekusimbisa tambo mukushandiswa kwepombi dzemvura.
Sei PTFE ichishandiswa mune zvemagetsi zvikamu?
PTFE ine yakasarudzika insulating zvivakwa zvinoita kuti ive yakanaka kune zvemagetsi zvikamu.Hazvina-conductive, zvinoreva;inoshingirira kuminda yemagetsi yakakwira.Iyo zvakare inoshingirira kupisa, mvura, uye kukora kwemakemikari.Inoshandiswawo pakugadzira michina yemurabhoritari uye zvishongedzo zvinosangana nehydrofluoric acid.
PTFE vane yakaderera kwazvo frictional midziyo.Izvi zvinoita kuti PTFE ikwane kugadzira zvikamu zvinoda kuramba kukwesha senge mabhero ebhora nemagiya.
Mamwe maitiro ePTFE
- * yakanakisa chipingamupinyi kune gasi, mwando uye kupisa
- *ine makemikari kuramba uye hainyunguriki mune zvese zvinonyungudutsa zvinozivikanwa
- *inorwiswa chete nesimbi yakanyungudutswa yealkali uye fluorine pakupisa kwakanyanya
- *ine kurwisa kwakanyanya kune acids, alkali uye solvents
- *yakanyanya lubricous
- *inogona kucheneswa ne autoclave, gasi, kupisa kwakaoma uye kemikari disinfectant
- *Zvakaipa zvekushandisa PTFE
Imwe yeanonyanya kushandiswa ePTFE ndeye cookware.PTFE mapani haagone kushandiswa kana ukaona zvikwambo kana kutsemuka pairi.Haikwanise kushandiswa mushure mekupisa.Inotanga kushata mushure mekunge tembiricha yekubika yasvika 260 ˚C uye yaora pamusoro pe350˚C.Uku kusvibiswa ne-chigadzirwa kunogona kuuraya shiri uye kunogona kukonzera zviratidzo zvefuru muvanhu.
Nyaya mukudzokorodza PTFE
Sezvimwe zvimwe zvinhu, kudzokorodza kwakaderedza zvimiro zvepakutanga.MuPTFE, akawanda ezvivakwa ayo akanaka zvekuti ichiri kuitika mushure mekudzokorodza.Mune zvimwe zvidzidzo, 5-10% ration yaizoramba ichibvumira kuti zvinhu zvipfuure sePTFE yakachena.Imwe yenyaya huru nePTFE yakadzokororwa ndeyekuti haishande pakushandisa kwenguva refu.
Asi, kuzvibatanidza zvese, PTFE yakadzokororwa inogara iine zvinhu zvakaderera kune PTFE uye haigone kuenderana nekufamba kwenguva.Nguva dzose zviri nani kutarisira kuti inogona kukanganisa uye kuti inotengeswa zvishoma zvishoma pane yepakutanga.
Nguva yekutumira: Feb-23-2017