What is PTFE hose material?| BESTEFLON

Ithubhu le-ptfe lenziwe ngaluphi uhlobo?

Isingeniso somkhiqizo

1,Ishubhu le-Ptfeelinye igama le-polytetrafluoroethylene, isifinyezo sesiNgisi yi-PTFE, (esaziwa kakhulu ngokuthi "iPlastic King, Hara"), kanti ifomula yamakhemikhali ingu--(CF2-CF2)n-. I-Polytetrafluoroethylene yatholakala ngengozi ngo-1938 ngusokhemisi uDkt. Roy J. Plunkett eDuPont.'s Jackson Laboratory eNew Jersey, e-USA Lapho ezama ukwenza i-chlorofluorocarbon entsha Uma kukhulunywa nge-refrigerant ehlanganisiwe. Imikhiqizo yale nto ngokuvamile ibizwa ngokuthi "i-non-stick coating"; iyinto eyenziwe nge-polymer esebenzisa i-fluorine ukuze ithathe indawo yawo wonke ama-athomu e-hydrogen ku-polyethylene. Le nto imelana nama-acid, ama-alkali, kanye nezinyibilikisi ezahlukahlukene zezinto eziphilayo, futhi cishe ayincibiliki kuzo zonke izinyibilikisi. Ngesikhathi esifanayo, i-PTFE inezici zokumelana nokushisa okuphezulu, futhi i-coefficient yayo yokungqubuzana iphansi kakhulu, ngakho-ke ingasetshenziswa njengendlela yokugcoba, futhi isibe yingubo efanelekile yesendlalelo sangaphakathi sezimbiza ezinganamathele namapayipi amanzi.

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Izinto zomkhiqizo ezisetshenziswa kakhulu kule mikhiqizo elandelayo:

I-PTFE, FEP, PFA, ETFE, AF, NXT, FFR.

I-PTFE: Isembozo esinganamatheli se-PTFE (polytetrafluoroethylene) singasetshenziswa ngokuqhubekayo ku-260°C, enezinga lokushisa eliphezulu lokusetshenziswa elingu-290-300°C, i-friction coefficient ephansi kakhulu, ukumelana okuhle kokuguguleka kanye nokuqina okuhle kwamakhemikhali.

I-FEP: I-FEP (i-fluorinated ethylene propylene copolymer) enganamatheli iyancibilika futhi igeleze ukuze yakhe ifilimu engenazimbobo ngesikhathi sokubhaka. Inokusimama okuhle kakhulu kwamakhemikhali kanye nezici ezinhle kakhulu zokunganamatheli. Izinga lokushisa eliphezulu lokusetshenziswa lingu-200℃.

I-PFA: I-PFA (i-perfluoroalkyl compound) enganamatheli iyancibilika futhi igeleze ngesikhathi sokubhaka ukuze yakhe ifilimu engenazimbobo njenge-FEP. Inzuzo ye-PFA ukuthi inezinga lokushisa eliphakeme lokusetshenziswa okuqhubekayo elingu-260°C, ukuqina nokuqina okuqinile, futhi kufanelekile ikakhulukazi ukusetshenziswa ekusetshenzisweni kokulwa nokunamathela kanye nokumelana namakhemikhali ngaphansi kwezimo zokushisa okuphezulu.

I-PTFE (i-Polytetrafluoroethene) iyinto eyenziwe nge-polymer esebenzisa i-fluorine ukuze ithathe indawo yawo wonke ama-athomu e-hydrogen ku-polyethylene. Le nto imelana nama-acid, ama-alkali, kanye nezinyibilikisi ezahlukahlukene zezinto eziphilayo, futhi cishe ayincibiliki kuzo zonke izinyibilikisi. Ngesikhathi esifanayo, i-ptfe tube inezici zokumelana nokushisa okuphezulu, futhi i-coefficient yayo yokungqubuzana iphansi kakhulu, ngakho-ke ingasetshenziswa ekugcobeni, futhi isibe yingubo efanelekile yama-wok namapayipi amanzi okulula ukuwahlanza. Ingasetshenziswa ekumelaneni nokugqwala kwamapayipi, ukumelana nokushisa okuphezulu nokuphansi, kanye nokumelana nokugqwala. Isetshenziswa ezindaweni ezinzima njengokugcoba, ubunjiniyela, izinto zikagesi, izinto zikagesi, kanye nezindiza.

Izici zomkhiqizo

1, Ukumelana nokushisa okuphezulu nokuphansi: umthelela omncane ekushiseni, ububanzi bokushisa obuhlukahlukene, izinga lokushisa elisebenzayo -65~260℃.

2、 Ayinamatheli: Cishe zonke izinto aziboshelwe kwifilimu ye-PTFE. Amafilimu amancane kakhulu nawo abonisa ukusebenza okuhle kokungaphazamisi. 2. Ukumelana nokushisa: Ifilimu yokumboza ye-PTFE inokumelana nokushisa okuhle kakhulu kanye nokumelana nokushisa okuphansi. Ingamelana namazinga okushisa aphezulu afinyelela ku-300°C ngesikhathi esifushane, futhi ngokuvamile ingasetshenziswa ngokuqhubekayo phakathi kuka-240°C no-260°C. Inokuzinza okukhulu kokushisa. Ingasebenza emazingeni okushisa abandayo ngaphandle kokuqhekeka futhi ayincibiliki emazingeni okushisa aphezulu.

3, Impahla yokushelela: Ifilimu yokumboza ye-PTFE ine-coefficient ephezulu yokushelela. I-coefficient yokushelela iyashintsha lapho umthwalo ushelela, kodwa inani liphakathi kuka-0.05-0.15 kuphela.

4、Ukumelana nomswakama: Ubuso befilimu yokumboza ye-PTFE abunamatheli emanzini nasemafutheni, futhi akulula ukunamathela esixazululweni ngesikhathi sokusebenza kokukhiqiza. Uma kunokungcola okuncane, mane ukusule. Kuchithwa isikhathi esifushane, konga amahora okusebenza futhi kuthuthukiswe ukusebenza kahle komsebenzi.

5. Ukumelana nokuguguleka: Inokumelana okuhle kakhulu nokuguguleka ngaphansi komthwalo omkhulu. Ngaphansi komthwalo othile, inezinzuzo ezimbili zokumelana nokuguguleka kanye nokungaphazanyiswa.

6. Ukumelana nokugqwala: I-PTFE ayigqwali ngamakhemikhali, futhi ingamelana nawo wonke ama-asidi aqinile (kufaka phakathi i-aqua regia) nama-oxidant aqinile ngaphandle kwezinsimbi ze-alkali ezincibilikisiwe, imidiya ye-fluorinated kanye ne-sodium hydroxide engaphezu kuka-300°C. Indima ye-ejenti yokunciphisa kanye nezinyibilikisi ezahlukahlukene eziphilayo ingavikela izingxenye kunoma yiluphi uhlobo lokugqwala kwamakhemikhali.

impahla yamakhemikhali

1、Ukufakwa kokushisa: Akuthinteki yimvelo kanye nemvamisa, ukumelana kwevolumu kungafinyelela ku-1018 ohm·cm, ukulahleka kwe-dielectric kuncane, futhi i-voltage yokuqhekeka iphezulu.

2、Ukumelana nokushisa okuphezulu nokuphansi: umthelela omncane ekushiseni, ububanzi bokushisa obubanzi, izinga lokushisa elisebenzayo -190~260℃.

3、Ukuzigcoba: Inesilinganiso esincane kakhulu sokungqubuzana phakathi kwamapulasitiki futhi iyinto efanelekile yokugcoba engenawoyela.

4, Ukunganamatheli kobuso: izinto eziqinile ezaziwayo azikwazi ukunamathela ebusweni, kuyizinto eziqinile ezinamandla amancane kakhulu obuso.

5、Ukumelana nesimo sezulu, ukumelana nemisebe kanye nokuvuleka okuphansi: ukuchayeka isikhathi eside emoyeni, ebusweni kanye nokusebenza akushintshi.

6, Ukungashi: Inkomba yomkhawulo womoya-mpilo ingaphansi kwama-90.

7、I-PTFE isetshenziswa kabanzi ezimbonini ezidinga ukumelana nokushisa okuphezulu kanye ne-viscosity ephezulu. I-super acid-fluoroantimonic acid enamandla kakhulu ingasetshenziswa futhi ukulondolozwa

Indawo yokusetshenziswa komkhiqizo

I-Polytetrafluoroethylene ingakhiwa ngokusunduza noma ukukhipha; ingenziwa futhi ibe yifilimu bese isikwa ibe yitheyiphu ye-PTFE efakwe emgodleni uma isetshenziswa ezintanjeni zokushisa okuphezulu. Isetshenziselwa ukukhiqiza izintambo ezivame kakhulu futhi yenziwe ngqo ekusakazeni kwamanzi. Ingasetshenziswa ekumbozeni, ekufakeni noma ekwenzeni ifayibha.

I-Polytetrafluoroethylene isetshenziswa kabanzi ezimbonini ezifana namandla enuzi, ukuvikela izwe, izindiza, izinto zikagesi, ugesi, amakhemikhali, imishini, izinsimbi, amamitha, ukwakhiwa, izindwangu, ukwelashwa kwendawo yensimbi, imithi, ukunakekelwa kwezokwelapha, ukudla, izinsimbi kanye nokuncibilikisa, njll. Izinto ezibolayo, izinto zokuvikela ukufudumala, izembozo ezilwa nokunamathela, njll. zenza kube umkhiqizo ongenakuphindwa.

Ipayipi le-PTFEInezakhiwo ezinhle kakhulu eziphelele, ukumelana nokushisa okuphezulu, ukumelana nokugqwala, ukunganamatheli, ukuzigcoba, izakhiwo ezinhle kakhulu ze-dielectric, kanye ne-coefficient ephansi kakhulu yokungqubuzana. Isetshenziswa njengepulasitiki yobunjiniyela, ingenziwa ibe amashubhu e-PTFE, izinduku, amabhande, amapuleti, amafilimu, njll. Ngokuvamile isetshenziswa kumapayipi angagqwali, izitsha, amaphampu, amavalvu, i-radar, imishini yokuxhumana evame kakhulu, imishini yomsakazo, ama-radome, njll. ngezidingo zokusebenza okuphezulu. Ukwengeza noma yikuphi ukugcwalisa okungamelana nokushisa okushisayo kwe-polytetrafluoroethylene, izakhiwo zayo zemishini zingathuthukiswa kakhulu. Ngesikhathi esifanayo, ezinye izakhiwo ezinhle kakhulu ze-PTFE ziyagcinwa. Izinhlobo ezigcwalisiwe zifaka i-glass fiber, insimbi, i-metal oxide, i-graphite, i-molybdenum disulfide, i-carbon fiber, i-polyimide, i-EKONOL, njll. Ukumelana nokuguguleka kanye nenani le-PV elilinganiselwe kungandiswa izikhathi eziyi-1000.