Is PTFE Tubing Flexible?| BESTEFLON

Polytetrafluoroethylene (polytetrafluoroethylene) birashoboka ko ari fluoropolymer ikoreshwa cyane kuko ifite ibintu byinshi biranga bituma iba ibikoresho byiza muburyo butandukanye bwo gukoresha.Nibihinduka cyane kuruta indi miyoboro isa kandi irashobora kurwanya imiti yose yinganda

Ubushyuhe buri hagati ya -330 ° F kugeza 500 ° F, butanga ubushyuhe bwagutse muri fluoropolymers.Mubyongeyeho, ifite ibikoresho byiza byamashanyarazi hamwe na magnetiki yoroheje.Ptfe tubing nigikoresho gikoreshwa cyane muri laboratoire hamwe nibisabwa aho kurwanya imiti nubuziranenge ari ngombwa.PTFEifite coefficient nkeya cyane yo guterana kandi nikimwe mubintu "kunyerera" bizwi

Ibiranga:

100% isukuye PTFE

Ugereranije na FEP, PFA, HP PFA, UHP PFA, ETFE, ECTFE, imiyoboro ya fluoropolymer yoroheje cyane

Imiti ya inert, irwanya imiti hafi yinganda zose hamwe ninganda

Ubushyuhe bwagutse

Kwinjira hasi

Kurangiza neza bitari inkoni kurangiza

Coefficient yo hasi cyane

Imikorere myiza y'amashanyarazi

Ntabwo ari umuriro

Ntabwo ari uburozi

Porogaramu:

laboratoire

Uburyo bwa shimi

Isesengura n'ibikoresho byo gutunganya

Gukurikirana ibyuka bihumanya ikirere

Ubushyuhe buke

ubushyuhe bwinshi

Amashanyarazi

ozone

Imiterere ya molekile ya PTFE

Polytetrafluoroethylene (PTFE) ikorwa na polymerisation ya molekile nyinshi ya tetrafluoroethylene

Igishushanyo cyoroshye cya PTFE ntabwo cyerekana imiterere-yimiterere itatu ya molekile.Muri molekile yoroshye (Ethylene), umugongo wa karubone ya molekile uhujwe na atome ya hydrogène gusa, kandi uyu munyururu uroroshye cyane-ntabwo rwose ari molekile y'umurongo

Nyamara, muri polytetrafluoroethylene, atome ya fluor mu itsinda rya CF2 ni nini bihagije ku buryo ishobora kubangamira atome ya fluor ku itsinda ryegeranye.Ugomba kwibuka ko atome ya fluorine ifite joriji 3 za electron zonyine zisohoka

Ingaruka yibi ni uguhagarika kuzenguruka kwa karubone-karubone imwe.Atome ya fluor ikunda gutondekwa kugirango ibe kure hashoboka kuri atome ya fluor yegeranye.Kuzenguruka bikunda guhurirana wenyine hagati ya atome ya fluor kuri atome ya karubone yegeranye-bigatuma kuzunguruka bitera imbaraga nabi

Imbaraga zanga zifunga molekile muburyo bwinkoni, kandi atome ya fluor itunganijwe muburyo bworoheje cyane - atome ya fluor itondekanye mukuzenguruka umugongo wa karubone.Iyi mitwe ya sisitemu izanyunyuzwa hamwe nkikaramu ndende, yoroheje mu isanduku

Iyi gahunda yo guhuza hafi ifite uruhare runini ku mbaraga za intermolecular, nkuko uzabibona

Imbaraga zidasanzwe hamwe no gushonga kwa PTFE

Ingingo yo gushonga ya polytetrafluoroethylene ivugwa nka 327 ° C.Ibi ni hejuru cyane kuri iyi polymer, hagomba rero kubaho imbaraga nyinshi za der der Waals hagati ya molekile

Kuki abantu bavuga ko ingufu za van der Waals muri PTFE zifite intege nke?

Imbaraga zo gukwirakwiza van der Waals ziterwa na dipole ihindagurika yigihe gito ikorwa mugihe electron muri molekile zigenda.Kuberako molekile ya PTFE nini, wakwitega imbaraga nini zo gukwirakwiza kuko hariho electron nyinshi zishobora kwimuka

Muri rusange uko ibintu bimeze ni uko molekile nini nini, imbaraga zo gukwirakwiza

Ariko, PTFE ifite ikibazo.Fluorine ni electronegative.Ikunda guhuza electron mumurongo wa karubone-fluor hamwe, kuburyo electron idashobora kugenda nkuko ubitekereza.Turasobanura karuboni-fluor nkaho idafite polarisiyasi ikomeye

Imbaraga za Van der Waals zirimo kandi imikoranire ya dipole-dipole.Ariko muri polytetrafluoroethylene (PTFE), buri molekile ikikijwe nigice cya atome ya fluor yuzuye nabi.Muri iki kibazo, imikoranire ishoboka hagati ya molekile ni ukwanga!

Imbaraga zo gutatanya rero zifite intege nke kurenza uko ubitekereza, kandi imikoranire ya dipole-dipole izatera kwangwa.Ntibitangaje kubona abantu bavuga ko imbaraga za der der Waals muri PTFE zifite intege nke cyane.Ntabwo uzabona mubyukuri imbaraga zanga, kubera ko imbaraga zogutatanya ziruta iz'imikoranire ya dipole-dipole, ariko ingaruka ni uko imbaraga za der der Waals zizakunda gucika intege

Ariko PTFE ifite ingingo yo hejuru cyane yo gushonga, imbaraga rero zifata molekile hamwe zigomba kuba zikomeye cyane

Nigute PTFE ishobora kugira ingingo yo hejuru yo gushonga?

PTFE ni kristu cyane, murubwo buryo hari ahantu hanini, molekile ziri muburyo busanzwe.Wibuke, molekile ya PTFE irashobora gutekerezwa nkinkoni ndende.Iyi nkingi izahurizwa hamwe

Ibi bivuze ko nubwo molekile ya ptfe idashobora kubyara dipole nini yigihe gito, dipole irashobora gukoreshwa neza

None se imbaraga za van der Waals muri PTFE zifite intege nke cyangwa zikomeye?

Ndatekereza ko mushobora kuba mwembi!Niba iminyururu ya polytetrafluoroethylene (PTFE) itunganijwe kuburyo hatabaho guhuza cyane iminyururu, imbaraga hagati yazo zizaba zifite intege nke cyane kandi aho gushonga bizaba bike cyane

Ariko mubyukuri, molekile zirahuza cyane.Imbaraga za Van der Waals zishobora kuba zidakomeye nkuko zishobora kuba, ariko imiterere ya PTFE bivuze ko bumva ingaruka zikomeye, zitanga imvano ikomeye muri intermolecular ningingo zishonga cyane

Ibi bitandukanye nizindi mbaraga, nkimbaraga za dipole-dipole, zigabanywa inshuro 23 gusa, cyangwa kabiri intera igabanywa inshuro 8

Kubwibyo, gupakira neza molekile zimeze nkinkoni muri PTFE byerekana neza uburyo bwo gutatanya

Ibintu bidafite inkoni

Niyo mpamvu amazi n'amavuta bidafatana hejuru ya PTFE, nimpamvu ushobora guteka amagi mumasafuriya ya PTFE udakomereje kumasafuriya.

Ugomba gusuzuma imbaraga zishobora gukosora izindi molekile hejuru yubusoPTFE.Irashobora gushiramo ubwoko bumwe bwimiti, van der Waals imbaraga cyangwa hydrogène

Guhuza imiti

Umubano wa karubone-fluor urakomeye cyane, kandi ntibishoboka ko izindi molekile zose zagera kumurongo wa karubone kugirango habeho reaction yo gusimburwa.Ntibishoboka ko habaho imiti ihuza imiti

van der Waals

Twabonye ko imbaraga za van der Waals muri PTFE zidakomeye cyane, kandi bizatuma gusa PTFE igira aho ishonga cyane, kuko molekile zegeranye kuburyo zifite imikoranire myiza.

Ariko biratandukanye kubindi molekile hafi yubuso bwa PTFE.Ugereranije molekile ntoya (nka molekile zamazi cyangwa molekile zamavuta) zizagira gusa umubonano muto nubuso, kandi hazakorwa gusa umubare muto wa van der Waals.

Molekile nini (nka poroteyine) ntizaba imeze nkinkoni, kubwibyo ntihaboneka imikoranire ihagije hagati yayo nubuso kugirango tuneshe imyumvire mike ya PTFE.

Ibyo ari byo byose, imbaraga za der der Waals hagati yubuso bwa PTFE nibintu bikikije ni bito kandi ntacyo bikora

Amazi ya hydrogen

Molekile ya PTFE hejuru yizingiye rwose kuri atome ya fluor.Izi atome za fluor ni electronegative, kuburyo zose zitwara urwego runaka rwumuriro mubi.Buri fluor nayo ifite ibice 3 bya electroni yonyine

Nibisabwa kugirango habeho imigozi ya hydrogène, nka joriji yonyine kuri fluor na atome ya hydrogen mumazi.Ariko ibi biragaragara ko bitazabaho, bitabaye ibyo hazabaho gukurura cyane hagati ya molekile ya PTFE na molekile zamazi, kandi amazi azakomeza kuri PTFE

Incamake

Nta buryo bwiza bwo gukora izindi molekile zifata neza hejuru ya PTFE, bityo ifite ubuso butari inkoni

Ubushyamirane buke

Coefficient de friction ya PTFE iri hasi cyane.Ibi bivuze ko niba ufite ubuso butwikiriwe na ptfe, ibindi bintu bizanyerera byoroshye.

Hasi nincamake yihuse yibibera.Ibi biva mu mpapuro zo mu 1992 zitwa "Ubuvanganzo no Kwambara Polytetrafluoroethylene".

Mugitangira kunyerera, ubuso bwa PTFE buracika kandi misa yimurirwa aho igenda hose.Ibi bivuze ko ubuso bwa PTFE buzambara.

Mugihe kunyerera byakomeje, ibibari byagaragaye muri firime zoroshye.

Mugihe kimwe, ubuso bwa PTFE burakururwa kugirango bukore urwego rwateguwe.

Ubuso bwombi buhuza ubu bufite gahunda ya PTFE itunganijwe neza ishobora kunyerera

Ibyavuzwe haruguru ni ugutangiza polytetrafluoroethylene, polytetrafluoroethylene irashobora gukorwa mubicuruzwa bitandukanye, turi inzobere mu gukora ptfe tube 、ptfe hose, ikaze kuvugana natwe