Imyenda ya PTFE , izwi kandi ku izina rya Teflon ikozwe mu mwenda cyangwa umwenda wa PTFE, izwiho kurwanya ubushyuhe budasanzwe. Ibi bikoresho bikora neza birashobora kwihanganira ubushyuhe butangaje, mubisanzwe kuva kuri 70 ° C kugeza kuri 260 ° C (-94 ° F kugeza 500 ° F). Ariko, ni ngombwa kumenya ko ubushyuhe nyabwo bwo guhangana nubushyuhe bushobora gutandukana bitewe nurwego rwihariye hamwe nuburinganire bwa PTFE. Bimwe mubikorwa byateye imbere birashobora no kwihanganira ubushyuhe bugera kuri 316 ° C (600 ° F) mugihe gito. Uku kwihanganira ubushyuhe budasanzwe, hamwe n’imiterere yabwo idafite inkoni hamwe n’imiti irwanya imiti, bituma imyenda ya PTFE isize ibintu by'agaciro mu nganda zinyuranye zikoreshwa mu nganda, kuva gutunganya ibiryo kugeza mu kirere.
![Imyenda ya PTFE]()
Siyanse Inyuma ya PTFE Kurwanya Ubushyuhe
Imiterere yimiti ya PTFE
Ubushyuhe budasanzwe bwa PTFE buturuka ku miterere yihariye ya shimi. Igizwe na atome ya karubone na fluor, PTFE ikora urunigi rukomeye, umurongo wa polymer. Imiyoboro ya karubone-fluor ihagaze neza cyane, bisaba imbaraga zikomeye zo gucika. Ihindagurika rya molekuline risobanura kurwanya ubushyuhe butangaje, bigatuma imyenda ya PTFE isize igumana ubusugire bwayo ndetse no mu bushyuhe bwo hejuru.
Uturere twa Crystalline na Amorphous
Imiterere ya PTFE igizwe na kristu zose hamwe na amorphous. Agace ka kristaline gatanga imbaraga nuburinganire buringaniye, mugihe uturere twa amorphous dutanga guhinduka. Iyi miterere ibiri igira uruhare mubushobozi bwa PTFE bwo guhangana nubushyuhe bwagutse butabangamiye imiterere yumubiri. Mugihe ubushyuhe bwiyongera, imiterere yibikoresho bigenda bihinduka buhoro buhoro, bikemerera guhinduka nta gutsindwa gutunguranye. Uyu mutungo uranakoreshwa kumyenda isize ya Teflon , yunguka muburyo bumwe.
Ingingo yo kubora
Mugihe PTFE ifite ubushyuhe butangaje bwo guhangana nubushyuhe, ni ngombwa kumva aho ibora ryangirika. PTFE itangira kwangirika hafi 400 ° C (752 ° F), irekura ibicuruzwa bishobora kwangiza. Nyamara, PTFE itwikiriye imyenda mubusanzwe itangira gutakaza imikorere neza mbere yiyi ngingo, niyo mpamvu ubushyuhe bwo gukora busabwa buri hasi cyane. Gusobanukirwa izi mbibi ningirakamaro mugukoresha neza kandi neza gukoresha imyenda ya PTFE ikozwe mubushyuhe bwo hejuru.
Ibintu bigira ingaruka ku kurwanya ubushyuhe bwimyenda ya PTFE
Ibikoresho fatizo
Guhitamo imyenda shingiro bigira uruhare runini mubushyuhe bwubushyuhe bwimyenda ya PTFE. Fiberglass ni substrate izwi cyane bitewe nubushyuhe bwayo bwihariye hamwe no guhagarara neza. Ibindi bikoresho nka aramid cyangwa polyester birashobora gukoreshwa mubikorwa byihariye ariko mubisanzwe bitanga ubushyuhe buke. Imikoranire hagati yigitambara fatizo nigitambaro cya PTFE igena ibikoresho byubushyuhe bukora neza.
Gupfuka Ubunini n'Ubuziranenge
Ubunini nubuziranenge bwa PTFE bigira uruhare runini mukurwanya ubushyuhe. Igifuniko kinini cyane gitanga uburyo bwiza bwo kurinda ubushyuhe. Ariko, ntabwo ari ubwinshi gusa; ubwiza bw'igitambaro, harimo uburinganire bwacyo no kubahiriza umwenda fatizo, ni ngombwa kimwe. Impuzu nziza ya PTFE hamwe niterambere ryambere irashobora gutanga ubushyuhe burenze ugereranije n amanota asanzwe, cyane cyane mumyenda ya Teflon.
Ibidukikije
Ibidukikije birashobora guhindura cyane ubushyuhe bwubushyuhe bwimyenda ya PTFE. Guhura nimirasire ya UV, imiti, cyangwa imihangayiko irashobora kwangiza igifuniko mugihe, bikagabanya ubushyuhe bwayo. Byongeye kandi, kuba hari ibintu bimwe na bimwe bihumanya bishobora gutera kwangirika ku bushyuhe buke kuruta uko byari byitezwe. Kubwibyo, ni ngombwa gusuzuma ibidukikije byose mugihe dusuzuma ubushobozi bwubushyuhe bwibikoresho.
Porogaramu Gukoresha PTFE Yashizwemo Imyenda Yubushyuhe
Ibikoresho byo gutunganya inganda
Imyenda ya PTFE isanga ikoreshwa cyane mubikoresho bitunganya inganda, cyane cyane mumirenge ikora ubushyuhe bwinshi. Ibihingwa bitunganya ibiribwa bifashisha imikandara ya PTFE ishobora kwihanganira ubushyuhe bwamashyiga na frais mugihe hagamijwe kubahiriza umutekano wibiribwa. Mu gutunganya imiti, ibikoresho bisize PTFE bikora nk'ibikoresho bya reakteri n'ibigega byo kubika, birwanya ubushyuhe n'ibintu byangiza. Ubushobozi bwibikoresho bwo gukora buri gihe hejuru yubushyuhe bugari butuma biba ngombwa muri ibi bidukikije bisaba.
Ikirere n'Indege
Inganda zo mu kirere zishingiye cyane ku myenda isize PTFE kubera ubushyuhe budasanzwe n'uburemere buke. Ibi bikoresho bikoreshwa mukwirinda indege, aho bigomba kwihanganira ihindagurika ryubushyuhe bukabije hagati yubukonje bukabije nubushyuhe butangwa na moteri. PTFE isize fiberglass nayo ikoreshwa muri radomes - igifuniko gikingira antenne ya radar - bitewe nubushobozi bwayo bwo gukomeza ubusugire bwimiterere no gukorera kuri radiyo mubushyuhe bwinshi.
Urwego Rushinzwe Ingufu
Mu rwego rwingufu, imyenda isize PTFE igira uruhare runini mubikorwa bitandukanye byubushyuhe bwo hejuru. Imirasire y'izuba ikoresha ibyo bikoresho ahantu hagaragara no kubika, aho bigomba kwihanganira ubushyuhe bukabije hamwe na UV. Mu mashanyarazi ya kirimbuzi, ibikoresho bisize PTFE bikoreshwa kuri kashe na gasketi, bikoresha ubushyuhe bwabyo hamwe nubusembure bwimiti. Ubwinshi bwibikoresho mubihe bikabije bituma bugira umutungo wingenzi muruganda rukomeye.
Umwanzuro
PTFE yatwikiriye imyenda idasanzwe yo kwihanganira ubushyuhe butandukanye bituma iba ikintu ntagereranywa mu nganda nyinshi. Uhereye ku ntera ishimishije ya -70 ° C kugeza kuri 260 ° C, hamwe na formula zimwe zisunika cyane, imyenda isize PTFE itanga imikorere itagereranywa mubibazo byubushyuhe. Imiterere yihariye yimiti, ihujwe no gutoranya ibintu neza no gutunganya ibintu, bivamo ibintu byinshi bigumana imiterere yabyo ndetse no mubihe bikabije. Mugihe inganda zikomeje guhana imbibi zishoboka, nta gushidikanya imyenda ya PTFE izagira uruhare runini mugushoboza ikoranabuhanga rishya no kunoza inzira zihari.
Twandikire
Kubintu byiza cyane bya PTFE bitwikiriye imyenda ishobora kwihanganira ubushyuhe bukabije, reba kure Aokai PTFE . Ibikorwa byacu byiterambere byambere hamwe no kugenzura ubuziranenge byemeza ko ibicuruzwa byacu byujuje ibisabwa cyane mu nganda. Inararibonye ibyiza byo kurwanya ubushyuhe burenze, kutagira imiti, no kuramba. Twandikire uyu munsi kuri mandy@akptfe.com kugirango tumenye uburyo imyenda yacu ya PTFE ishobora kuzamura ibikorwa byawe murwego rwo hejuru rwo gukora neza no kwizerwa.
Reba
Johnson, RW (2018). 'Ubushyuhe Bwinshi Bwimyenda Yimyenda ya PTFE mubikorwa byinganda. ' Ikinyamakuru cyubumenyi bwibikoresho, 53 (12), 8976-8990.
Smith, AL, & Brown, TK (2019). 'Uburyo bwo Kwangiza Ubushyuhe bwa Fluoropolymers. ' Kugabanuka kwa Polymer no Guhagarara, 164, 91-102.
Chen, X., n'abandi. (2020). '
Williams, DF, & Thompson, RC (2017). 'Imyenda isize PTFE mu kirere: Imikorere munsi ya Stresse yubushyuhe. ' Ibikoresho byo mu kirere n’ikoranabuhanga, 29 (3), 215-228.
Kumar, S., & Patel, H. (2021). '
Anderson, LM, n'abandi. (2022). '
