Is PTFE Tubing Flexible?| BESTEFLON

Polytetrafluoroethylene (polytetrafluoroethylene) ingangove ndiyo inonyanya kushandiswa fluoropolymer nekuti ine akati wandei maitiro anoita kuti ive chinhu chakanakira kune akawanda maapplication.Iyo inochinjika kupfuura mamwe mapaipi akafanana uye inogona kuramba anenge ese maindasitiri makemikari

Tembiricha yemhando inosvika -330 ° F kusvika 500 ° F, ichipa yakakura kwazvo tembiricha renji pakati pefluoropolymers.Mukuwedzera, ine yakanakisa magetsi emagetsi uye yakaderera magineti permeability.Ptfe tubing ndiyo inonyanya kushandiswa murabhoritari tubing uye maapplication uko makemikari kuramba uye kuchena kwakakosha.PTFEine yakaderera coefficient of friction uye chimwe chezvinhu "zvinotsvedza" zvinozivikanwa

Features:

100% yakachena PTFE resin

Kuenzaniswa neFEP, PFA, HP PFA, UHP PFA, ETFE, ECTFE, mapaipi anochinjika efluoropolymer

Kemikari inert, inoshingirira kunenge ese maindasitiri makemikari uye zvinonyungudutsa

Wide tembiricha range

Kupinda kwakaderera

Smooth non-stick surface finish

Yakaderera friction coefficient

Kuita kwakanakisa kwemagetsi

Zvisingabatike

Kwete-chepfu

Applications:

rabhoritari

Chemical process

Analysis uye kugadzirisa michina

Emission monitoring

Kupisa kwakadzika

kupisa kwakanyanya

Magetsi

ozone

Chimiro chePTFE mamorekuru

Polytetrafluoroethylene (PTFE) inogadzirwa nekupolymerization kweakawanda tetrafluoroethylene mamorekuru.

Iyi dhizaini yakapfava yePTFE hairatidze matatu-dimensional chimiro chemorekuru.Mune yakapfava molecular poly (ethylene), iyo kabhoni musana wemorekuru inobatanidzwa chete nemaatomu ehydrogen, uye cheni iyi inoshanduka-shanduka-haisi haisi mutsara molecule.

Zvisinei, mu polytetrafluoroethylene, atomu yefluorine muboka reCF2 yakakura zvokuti inogona kukanganisa atomu yefluorine paboka riri pedyo.Iwe unofanirwa kuyeuka kuti atomu imwe neimwe yefluorine ine mapeya matatu emaerekitironi ega anonamira kunze

Mhedzisiro yeizvi ndeyekudzvanya kutenderera kwekabhoni-kabhoni imwe bond.Maatomu efluorine anowanzo kurongeka kuitira kuti ave kure sezvinobvira kubva kumaatomu efluorine ari pedyo.Kutenderera kunowanzo sanganisira kudhumhana kwepaviri pakati pemaatomu efluorine pane maatomu ekabhoni ari padyo-izvo zvinoita kuti kutenderera kusave kwakanaka.

Simba rinosemesa rinovhara mamorekuru kuita tsvimbo, uye maatomu efluorine anorongwa mumhepo yakapfava-maatomu efluorine akarongwa mudenderedzwa rakatenderedza carbon backbone.Iyi mitsetse ye lead inosvinwa pamwechete semapenzura marefu, matete mubhokisi

Iyi gadziriro yepedyo yekubatana ine yakakosha pesvedzero pamasimba e-intermolecular, sezvauchaona

Intermolecular forces uye nzvimbo yakanyunguduka yePTFE

Kunyungudika kwepolytetrafluoroethylene kunonzi 327°C.Izvi zvakanyanyisa kukwirira kune iyi polima, saka panofanirwa kuve neakawanda van der Waals masimba pakati pemamorekuru

Sei vanhu vachiti mauto evan der Waals muPTFE haana simba?

Simba rekuparadzira van der Waals rinokonzerwa nekuchinja-chinja kwechinguvana dipoles kunogadzirwa kana maerekitironi ari mumorekuru achifamba.Nekuti iyo PTFE morekuru ihombe, ungatarisira simba guru rekuparadzira nekuti kune maerekitironi akawanda anogona kufamba.

Mamiriro ezvinhu ose ndeokuti kukura kwemorekuru, ndiko kukura kwesimba rekuparadzira

Nekudaro, PTFE ine dambudziko.Fluorine yakanyanya electronegative.Inoda kusunga maerekitironi mu carbon-fluorine bond zvakasimba pamwechete, zvakasimba zvekuti maerekitironi haakwanise kufamba sezvaunofunga.Isu tinotsanangura iyo kabhoni-fluorine bond seisina simba polarization

Van der Waals mauto anosanganisirawo dipole-dipole kusangana.Asi mupolytetrafluoroethylene (PTFE), morekuru wega wega wakakomberedzwa neruzhowa rwemaatomu efluorine anochajiswa zvishoma.Muchiitiko ichi, iyo chete inogoneka kupindirana pakati pemamorekuru ndiko kuzvidzora!

Saka simba rekuparadzira harina simba kupfuura zvaunofunga, uye kudyidzana kwe dipole-dipole kunokonzera kudzorwa.Ndosaka vanhu vachiti simba revan der Waals muPTFE harina simba.Iwe hausi kuzowana iro rinosemesa simba, nekuti pesvedzero yesimba rekuparadzira yakakura kupfuura iyo ye dipole-dipole kupindirana, asi mambure mhedzisiro ndeyekuti simba revan der Waals rinowanzo kushaya simba.

Asi PTFE ine nzvimbo yakanyanya kunyungudika, saka simba rinobata mamorekuru pamwechete rinofanira kunge rakasimba kwazvo.

PTFE ingave sei nepamusoro pekunyungudika?

PTFE yakanyanya crystalline, mupfungwa iyi kune nzvimbo yakakura, mamorekuru ari muhurongwa hwenguva dzose.Rangarira, PTFE mamorekuru anogona kufungidzirwa sematanda akareba.Matanda aya achanyatsobatanidzwa pamwe chete

Izvi zvinoreva kuti kunyangwe iyo ptfe molecule isingakwanise kuburitsa mahombe enguva pfupi, ma dipoles anogona kushandiswa nemazvo.

Saka mauto evan der Waals ari muPTFE haana simba here kana kuti akasimba?

Ndinofunga kuti mese munogona kuva vakarurama!Kana maketani epolytetrafluoroethylene (PTFE) akarongwa nenzira yokuti pasave nekubatana kwepedyo pakati pemaketani, simba riri pakati pawo richave risina simba uye nzvimbo inonyunguduka inenge yakaderera zvikuru.

Asi munyika chaiyo, mamorekuru ari pedyo.Van der Waals mauto anogona kunge asina simba sezvaangave, asi chimiro chePTFE chinoreva kuti vanonzwa mhedzisiro yakakura, ichigadzira yakazara yakasimba intermolecular bond uye yakakwirira kunyungudika.

Izvi zvakasiyana nemamwe masimba, akadai sedipole-dipole interaction force, iyo inongoderedzwa ne23 nguva, kana kaviri kureba kunoderedzwa ne8 nguva.

Naizvozvo, kurongeka kwakasimba kwemamorekuru akaita setsvimbo muPTFE kunowedzera kushanda kwekupararira.

Izvo zvisiri zvekunamatira zvivakwa

Ichi ndicho chikonzero mvura nemafuta zvisinganamatire pamusoro pePTFE, uye nei uchigona kufinya mazai muPTFE-yakavharwa pani usinganamatire pani.

Iwe unofanirwa kufunga kuti ndeapi masimba anogona kugadzirisa mamwe mamorekuru pamusoro pePTFE.Inogona kusanganisira imwe mhando yemakemikari bond, van der Waals simba kana hydrogen bond

Chemical bonding

Iyo kabhoni-fluorine bond yakasimba kwazvo, uye hazvigoneke kuti chero mamwe mamorekuru asvike kune kabhoni cheni kuti aite chero mhinduro yekutsiva kuitika.Hazvibviri kuti chisungo chemakemikari chiitike

van der Waals forces

Takaona kuti simba re van der Waals muPTFE harina kusimba zvakanyanya, uye rinongoita kuti PTFE ive nepamusoro-soro yekunyunguduka, nokuti mamorekuru ari pedyo zvikuru zvokuti ane kubata kwakanyanya.

Asi zvakasiyana kune mamwe mamorekuru ari padyo nepamusoro pePTFE.Zvine mwero mamorekuru madiki (akadai semamorekuru emvura kana mamorekuru emafuta) anongove nekadiki kekubatana nepamusoro, uye ishoma chete yevan der Waals inokwezva inogadzirwa.

Molekuru yakakura (yakadai seprotein) haizove yakaumbwa netsvimbo, saka hapana yakakwana yekubata inoshanda pakati payo nepamusoro kuti ikunde yakaderera polarization maitiro ePTFE.

Chero nzira, simba revan der Waals pakati pepamusoro pePTFE uye zvinhu zvakapoteredza idiki uye haishande.

Hydrogen zvisungo

Ma PTFE mamorekuru ari pamusoro akanyatsoputirwa nemaatomu efluorine.Aya maatomu efluorine ane electronegative zvakanyanya, saka ese anotakura imwe dhigirii yekuchajisa.Imwe neimwe fluorine inewo mapeya matatu emaerekitironi anobuda ari ega

Aya ndiwo mamiriro anodiwa pakugadzirwa kwehydrogen bond, senge peya imwechete pafluorine uye atomu yehydrogen mumvura.Asi izvi zviri pachena hazvizoitiki, kana zvikasadaro pachava nekukwezva kwakasimba pakati pePTFE mamorekuru uye mamorekuru emvura, uye mvura ichanamatira kuPTFE.

Summary

Iko hakuna nzira inoshanda yekuti mamwe mamorekuru akwanise kubatanidza pamusoro pePTFE, saka ine isina-tsvimbo.

The low friction

Iyo coefficient ye friction yePTFE yakaderera zvakanyanya.Izvi zvinoreva kuti kana iwe uine nzvimbo yakavharwa neptfe, zvimwe zvinhu zvinotsvedza pazviri nyore.

Pazasi pane pfupiso inokurumidza yezviri kuitika.Izvi zvinobva mubepa ra1992 rine musoro unoti "Friction and Wear of Polytetrafluoroethylene".

Pakutanga kwekutsvedza, nzvimbo yePTFE inotsemuka uye huwandu hunotamirwa kune chero kwainotsvedza.Izvi zvinoreva kuti nzvimbo yePTFE ichapfeka.

Sezvo kutsvedza kwaienderera mberi, zvivharo zvakafumuka kuita mafirimu matete.

Panguva imwecheteyo, pamusoro pePTFE inodhonzwa kunze kuti igadzire yakarongeka.

Zvose zviri zviviri zvinosangana zvino zvine akanyatsorongeka PTFE mamorekuru anogona kutsvedza pane mumwe nemumwe.

Izvo zviri pamusoro ndiko kuiswa kwe polytetrafluoroethylene, polytetrafluoroethylene inogona kugadzirwa mumhando dzakasiyana dzezvigadzirwa, isu tiri nyanzvi mukugadzira ptfe chubhu,ptfe hose vagadziri, tinogamuchirwa kutaura nesu