What is PTFE hose material?| BESTEFLON

Yenziwe ngezinto ezinjani ityhubhu ye-ptfe?

Intshayelelo yemveliso

1,Ityhubhu yePtfeligama elinye le-polytetrafluoroethylene, isifinyezo sesiNgesi yi-PTFE, (esaziwa ngokuba yi-"Plastic King, Hara"), kwaye ifomula yekhemikhali yi--(CF2-CF2)n-. I-Polytetrafluoroethylene yafunyanwa ngengozi ngo-1938 yikhemisti uGqr. Roy J. Plunkett eDuPont.'s Jackson Laboratory eNew Jersey, e-USA Xa wayezama ukwenza i-chlorofluorocarbon entsha Kwimeko ye-compound refrigerant. Iimveliso zale nto ngokubanzi zibizwa ngokuba "yi-non-stick coating"; yinto eyenziwe nge-polymer esebenzisa i-fluorine ukutshintsha zonke ii-athomu ze-hydrogen kwi-polyethylene. Le nto imelana ne-asidi, i-alkalis, kunye ne-organic solvents ezahlukeneyo, kwaye ayinyibiliki phantse kuzo zonke izinyibilikisi. Kwangaxeshanye, i-PTFE ineempawu zokumelana nobushushu obuphezulu, kwaye i-friction coefficient yayo iphantsi kakhulu, ngoko ke ingasetyenziswa njengendlela yokuthambisa, kwaye ikwaye ibe yi-coating efanelekileyo yomaleko wangaphakathi weembiza ezingancamathisiyo kunye nemibhobho yamanzi.

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Ezi mveliso zisetyenziswa kakhulu kwezi mveliso zilandelayo:

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

I-PTFE: I-PTFE (polytetrafluoroethylene) ingubo enganamatheliyo ingasetyenziswa rhoqo kwi-260°C, enobushushu obuphezulu bokusetyenziswa obuyi-290-300°C, i-coefficient ephantsi kakhulu yokungqubana, ukumelana nokuguguleka okuhle kunye nozinzo oluhle kakhulu lweekhemikhali.

I-FEP: I-FEP (i-fluorinated ethylene propylene copolymer) yokwaleka enganamatheliyo iyanyibilika kwaye igeleze ukuze yenze ifilimu engenazimbobo ngexesha lokubhaka. Inozinzo oluhle kakhulu lweekhemikhali kunye neempawu ezintle kakhulu ezinganamatheliyo. Ubushushu obuphezulu bokusetyenziswa yi-200℃.

I-PFA: I-PFA (i-perfluoroalkyl compound) i-non-stick coating iyanyibilika kwaye igeleze ngexesha lokubhaka ukuze yenze ifilimu engenazimbobo ezifana ne-FEP. Inzuzo ye-PFA kukuba inobushushu obuphezulu bokusetyenziswa rhoqo obuyi-260°C, ukuqina nokuqina okuqinileyo, kwaye ifanelekile ngakumbi ukusetyenziswa kwiindawo zokuchasana nokunamathela kunye nokumelana neekhemikhali phantsi kweemeko zobushushu obuphezulu.

I-PTFE (iPolytetrafluoroethene) yinto eyenziwe ngepolymer eyenziweyo esebenzisa i-fluorine ukuthatha indawo yazo zonke iiathom ze-hydrogen kwi-polyethylene. Le nto ayixhathisi kwii-asidi, ii-alkali, kunye nezinye izinto ezahlukeneyo ze-organic solvents, kwaye ayinyibiliki phantse kuzo zonke izinto ezinyibilikayo. Kwangaxeshanye, ityhubhu ye-ptfe ineempawu zokumelana nobushushu obuphezulu, kwaye i-coefficient yayo yokungqubana iphantsi kakhulu, ngoko ke ingasetyenziselwa ukuthambisa, kwaye ikwayeyona nto ifanelekileyo yokugquma ii-woks kunye neepayipi zamanzi ezilula ukuzicoca. Ingasetyenziselwa ukumelana nokugqwala kwepayipi, ukumelana nobushushu obuphezulu nobuphantsi, kunye nokuxhathisa ukugqwala. Isetyenziswa kwiindawo ezinzima ezifana nokuthambisa, ubunjineli, izixhobo ze-elektroniki, izixhobo zombane, kunye neenqwelo moya.

Iimpawu zemveliso

1, Ukumelana nobushushu obuphezulu nobuphantsi: impembelelo encinci kubushushu, uluhlu olubanzi lobushushu, ubushushu obusebenzayo -65~260℃.

2、 Ayinamatheli: Phantse zonke izinto azibotshelelwanga kwifilimu ye-PTFE. Iifilimu ezincinci kakhulu zibonisa ukusebenza kakuhle kokungaphazanyiswa. 2. Ukumelana nobushushu: Ifilimu yokugquma ye-PTFE inokumelana nobushushu okugqwesileyo kunye nokumelana nobushushu obuphantsi. Ingamelana nobushushu obuphezulu ukuya kuthi ga kwi-300°C ngexesha elifutshane, kwaye ngokubanzi ingasetyenziswa rhoqo phakathi kwe-240°C kunye ne-260°C. Izinzile kakhulu kubushushu. Ingasebenza kubushushu obubandayo ngaphandle kokuqhekeka kwaye ayinyibiliki kubushushu obuphezulu.

3, Ipropati yokutyibilika: Ifilimu yokugquma ye-PTFE inomlinganiselo ophezulu wokungqubana. Umlinganiselo wokungqubana uyatshintsha xa umthwalo utyibilika, kodwa ixabiso liphakathi kwe-0.05-0.15 kuphela.

4、Ukumelana nokufuma: Umphezulu wefilimu yokugquma ye-PTFE awunamatheli emanzini nakwioyile, kwaye akulula ukunamathela kwisisombululo ngexesha lemisebenzi yokuvelisa. Ukuba kukho ukungcola okuncinci, sula nje. Ixesha elifutshane lichithwa, oko konga iiyure zokusebenza kunye nokuphucula ukusebenza kakuhle komsebenzi.

5. Ukumelana nokuguguleka: Inokumelana nokuguguleka okuhle kakhulu xa ithwele umthwalo omkhulu. Phantsi komthwalo othile, ineenzuzo ezimbini zokungaguguleki nokungaphazanyiswa.

6, Ukumelana nokugqwala: I-PTFE ayigqwali kakhulu ziikhemikhali, kwaye inokumelana nazo zonke ii-asidi ezinamandla (kubandakanya i-aqua regia) kunye nee-oxidants ezinamandla ngaphandle kwee-alkali metals ezinyibilikisiweyo, i-fluorinated media kunye ne-sodium hydroxide engaphezulu kwama-300°C. Indima ye-reducing agent kunye nee-organic solvents ezahlukeneyo zinokukhusela iindawo kuyo nayiphi na uhlobo lokugqwala kweekhemikhali.

ipropati yeekhemikhali

1、Ukufakwa kobushushu: Akuchaphazeleki yimeko-bume kunye nokuphindaphinda, ukumelana nomthamo kunokufikelela kwi-1018 ohm·cm, ilahleko ye-dielectric incinci, kwaye i-voltage yokuqhekeka iphezulu.

2, Ukumelana nobushushu obuphezulu nobuphantsi: impembelelo encinci kubushushu, uluhlu olubanzi lobushushu, ubushushu obusebenzayo -190~260℃.

3、Ukuzithambisa: Ine-coefficient encinci yokungqubana phakathi kweplastiki kwaye sisixhobo sokuthambisa esingenawo amafutha esifanelekileyo.

4, Ukunganamatheli komphezulu: izinto eziqinileyo ezaziwayo azinakumatheli kumphezulu, zizinto eziqinileyo ezinamandla amancinci omphezulu.

5, ukumelana nemozulu, ukumelana nemitha kunye nokungena okuphantsi: ukuvezwa ixesha elide emoyeni, umphezulu kunye nokusebenza azitshintshi.

6, Ukungatshi: Isalathisi somda weoksijini singaphantsi kwama-90.

7, i-PTFE isetyenziswa kakhulu kumashishini afuna ukumelana nobushushu obuphezulu kunye ne-viscosity ephezulu. I-super acid-fluoroantimonic acid enamandla kakhulu ingasetyenziselwa ukugcinwa

Indawo yesicelo semveliso

I-Polytetrafluoroethylene inokwenziwa ngokutyhala okanye ngokuyikhupha; ingenziwa ifilimu ize inqunyulwe ibe yiteyiphu ye-PTFE efakwe kwi-shaft xa isetyenziswa kwiintambo zobushushu obuphezulu. Isetyenziselwa ukuvelisa iintambo ezisebenzisa i-frequency ephezulu kwaye yenziwe ngokuthe ngqo ekusasazekeni kwamanzi. Ingasetyenziselwa ukugquma, ukufunxa okanye ukwenza iifayibha.

I-Polytetrafluoroethylene isetyenziswa kakhulu kumashishini afana namandla enyukliya, ukhuselo lwesizwe, i-aerospace, i-electronics, umbane, iikhemikhali, oomatshini, izixhobo, iimitha, ulwakhiwo, amalaphu, unyango lomphezulu wesinyithi, amayeza, unyango lwezonyango, ukutya, isinyithi kunye nokunyibilikisa, njl. Izinto ezibolayo, izinto zokukhusela, izinto zokugquma, njl. njl. zenza ukuba ibe yimveliso engenakutshintshwa.

Umbhobho we-PTFEIneempawu ezibalaseleyo ezipheleleyo, ukumelana nobushushu obuphezulu, ukumelana nokugqwala, ukunganamatheli, ukuzithambisa, iimpawu ze-dielectric ezigqwesileyo, kunye ne-coefficient ephantsi kakhulu yokungqubana. Isetyenziswa njengeplastiki yobunjineli, inokwenziwa ibe ziityhubhu ze-PTFE, iintonga, iibhanti, iipleyiti, iifilimu, njl. Ngokuqhelekileyo isetyenziswa kwiipayipi ezingamelani nokugqwala, izikhongozeli, iimpompo, iivalvu, i-radar, izixhobo zonxibelelwano ezisebenza rhoqo, izixhobo zerediyo, ii-radomes, njl. ngeemfuno zokusebenza okuphezulu. Ukongeza nayiphi na i-filler enokumelana nobushushu obutshisayo be-polytetrafluoroethylene, iimpawu zayo zoomatshini zinokuphucuka kakhulu. Kwangaxeshanye, ezinye iimpawu ezibalaseleyo ze-PTFE ziyagcinwa. Iindidi ezizalisiweyo ziquka i-glass fiber, i-metal, i-metal oxide, i-graphite, i-molybdenum disulfide, i-carbon fiber, i-polyimide, i-EKONOL, njl. Ixabiso le-PV elilinganiselweyo kunye nokumelana nokugqwala linokwandiswa ngama-1000 amaxesha.