I-Polytetrafluoroethylene (PTFE) iyi-fluoropolymer e-semi-crystalline. I-PTFE yaziwa kakhulu ngokusetshenziswa kwayo njengesembozo esinganamatheli emabhodweni nasemapani asekhishini ngenxa yokumelana kwayo nokushisa nokugqwala okumangalisayo.
KuyiniI-PTFE?
Ake siqale ukuhlola kwethu ukuthi i-PTFE iyini ngempela. Ukuze siyinike igama layo eligcwele, i-polytetrafluoroethylene iyi-polymer yokwenziwa equkethe izakhi ezimbili ezilula; ikhabhoni ne-fluorine. Itholakala ku-tetrafluoroethylene (TFE) futhi inezakhiwo ezithile ezihlukile ezenza ibe yinto ewusizo ezinhlobonhlobo zezicelo. Isibonelo:
Indawo yokuncibilika ephezulu kakhulu: Njengoba indawo yokuncibilika icishe ibe ngu-327°C, zimbalwa kakhulu izimo lapho i-PTFE ingalimala khona ngenxa yokushisa.
Ukungathandi amanzi: Ukumelana kwayo namanzi kusho ukuthi ayimanzi, okwenza ibe usizo ekuphekeni, ekufakeni amanxeba nokunye.
Ayisebenzi ngamakhemikhali: Iningi lezinyibilikisi namakhemikhali ngeke lilimaze i-PTFE.
I-coefficient ephansi yokungqubuzana: I-coefficient yokungqubuzana kwe-PTFE ingenye yezindawo eziphansi kakhulu kunoma yisiphi isiqina esikhona, okusho ukuthi akukho okuzonamathela kuyo.
Amandla aphezulu okugoba: Ikhono layo lokugoba nokugoba, ngisho noma amazinga okushisa aphansi, lisho ukuthi ingasetshenziswa kalula ezindaweni ezahlukahlukene ngaphandle kokulahlekelwa ubuqotho bayo.
Ukucutshungulwa kwe-PTFE
I-PTFE ingatholakala ngezindlela ze-granular, dispersion kanye ne-fine powder. I-PTFE e-semi-crystalline inokushisa okuphezulu kokuncibilika kanye ne-melt viscosity, okwenza kube nzima ukukhipha nokufaka umjovo. Ngakho-ke, ukucutshungulwa kwe-PTFE kufana kakhulu nokucutshungulwa kwe-powder kunokwenziwa kwepulasitiki yendabuko.
I-PTFE e-granular ikhiqizwa ngendlela yokusabela kwe-polymerisation esekwe emanzini. I-resin e-granular ephumayo ivame ukucutshungulwa ibe yisimo ngokubumba okucindezelwe. Imikhiqizo yokuhlakazeka kwe-PTFE ikhiqizwa ngendlela efanayo, kanye nama-ejenti okuhlakaza engeziwe. Imikhiqizo yokuhlakaza ingasetshenziswa ekumbozweni kwe-PTFE noma ingacutshungulwa ibe yifilimu encane ngokuthungwa kwefilimu. I-PTFE powder ikhiqizwa ngendlela yokusabela kwe-emulsion polymerisation. I-fine powder ephumayo inganamathiselwa kuma-tepi e-PTFE, amapayipi e-PTFE, kanye nokufakwa kwe-wire, noma isetshenziswe njengesithasiselo sokwandisa ukumelana nokugqwala kwezinye izinto ze-polymeric.
Izicelo Ezi-5 Eziphezulu ze-PTFE
1. Ukusetshenziswa kwezakhiwo zokulwa nokugqwala
Irabha, ingilazi, i-alloy yensimbi nezinye izinto ziyahluleka ukuhlangabezana nezimo ezinzima zokushisa, ingcindezi kanye nendawo yokuhlala ndawonye yamakhemikhali ngenxa yamaphutha azo ekuphikeleni ukugqwala. Kodwa-ke, i-PTFE inokumelana okuhle kakhulu nokugqwala ngakho-ke isibe yizinto eziyinhloko ezingamelani nokugqwala ze-petroleum, amakhemikhali, izindwangu kanye nezinye izimboni.
2. Ukusetshenziswa kwezakhiwo zokungqubuzana okuphansi emthwalweni
Ukugcotshwa kwamafutha akufaneleki ezingxenyeni zokungqubuzana kwemishini ethile, ngoba igrisi yokugcotshwa ingancibilikiswa yizinyibilikisi futhi ayisebenzi, noma imikhiqizo emkhakheni wezokwelapha, ukudla, indwangu kanye neminye imikhakha yezimboni idinga ukugwema ukungcoliswa ngamafutha okugcotshwa. Ngenxa yalokho, ipulasitiki ye-PTFE, ene-coefficient yokungqubuzana ephansi kunanoma iyiphi enye into eqinile eyaziwayo, isibe yinto efanelekile kakhulu yokugcotshwa okungenawo amafutha (ukuthwala umthwalo ngqo) kwezingxenye zemishini yemishini.
3. Ukusetshenziswa kukagesi kanye nogesi
Ukulahlekelwa okuphansi kanye nokungaguquguquki okuncane kwe-dielectric kwezinto ze-PTFE kuzenza zikwazi ukwenziwa ucingo oluhlanganisiwe lwama-micro motors, ama-thermocouple namadivayisi okulawula. Ifilimu ye-PTFE iyinto efanelekile yokuvikela ugesi yokukhiqiza ama-capacitor, i-radio insulation liner, izintambo ezivikela ugesi, ama-motor kanye nama-transformer, futhi ingenye yezinto ezibalulekile zezindiza nezinye izingxenye ze-elekthronikhi zezimboni.
4. Ukusetshenziswa kwezokwelapha
I-PTFE enwetshiwe ayisebenzi kahle futhi ivumelana nezimo ngokwezinto eziphilayo, ngakho ayibangeli ukwenqatshwa ngumzimba, ayinayo imiphumela emibi emzimbeni womuntu, ingahlanzwa nganoma iyiphi indlela, futhi inesakhiwo esinezimbobo eziningi.
5. Ukusetshenziswa kwezakhiwo ezilwa nokunamathela
Njengoba inokucindezeleka okuphansi kakhulu kunokwezinto eziqinile, i-PTFE Teflon ayinamatheli kunoma iyiphi into. Ngaphezu kwalokho, inokumelana okuhle kakhulu namazinga okushisa aphezulu naphansi. Ngenxa yalokho, isetshenziswe kabanzi esicini sokunganamatheli samapani anganamatheli.
Uma use-Ptfe Tube, Ungase Uthande
Okulandelayo isingeniso esijwayelekile sezimpawu eziyinhloko zamashubhu e-PTFE:
1. Ayinamatheli: Ayisebenzi, futhi cishe zonke izinto azihlanganisiwe kuyo.
2. Ukumelana nokushisa: i-ferroflurone inokumelana nokushisa okuhle kakhulu. Umsebenzi ojwayelekile ungasetshenziswa ngokuqhubekayo phakathi kuka-240℃ no-260℃. Ukumelana nokushisa kwesikhathi esifushane kuya ku-300℃ kanye nephuzu lokuncibilika elingu-327℃.
3. Ukuthambisa: I-PTFE ine-coefficient ephansi yokushayisana. I-coefficient yokushayisana iyashintsha lapho umthwalo ushelela, kodwa inani liphakathi kuka-0.04 no-0.15 kuphela.
4. Ukumelana nesimo sezulu: akukho ukuguga, kanye nokuphila okungcono kokungagugi epulasitikini.
5. Ayinabo ubuthi: endaweni evamile engaphakathi kuka-260℃, ine-inertia yemvelo futhi ingasetshenziswa kwezokwelapha nemishini yokudla.
Ukuthenga ipayipi le-PTFE elifanele akukhona nje ukukhetha imininingwane ehlukene yezinhlelo zokusebenza ezahlukene. Okuningi ukukhetha umenzi othembekile.I-Besteflon Fluorineipulasitiki Industry Co., Ltd. igxile ekukhiqizweni kwekhwalithi ephezuluAmapayipi namapayipi e-PTFEiminyaka engama-20. Uma unemibuzo nezidingo, sicela ukhululeke ukuxhumana nathi ukuze uthole iseluleko sobungcweti esengeziwe.
Izihloko Ezihlobene
Isikhathi sokuthunyelwe: Mashi-15-2024