Yintoni i-ptfe (polytetrafluororoothl)

Yintoni i-ptfe (polytetrafluorororoothl)?

I-Ptfe Polytetraflum ye-Pluenerally ye-fluoropolymer ye-fluoropolymer equlunqwe ngeathom yekharbon kunye neeathom ze-fluorine. I-Fluoropolymers liqela leeplasitiki ezinoluhlu olubanzi lweepropathi kunye nezibonelelo. I-ptfe yenye enjalo i-fluorolly yomfuzisi ofunyenwe ngonaphakade kwiqela le-fluooropolymer laza lavula indlela yezicelo ezahlukeneyo.

Omnye wemisebenzi eqhelekileyo yezinto ze-PTFE ibandakanya iingubo ezingenakuthintelo lwekhitshi lasekhitshini. Ngenxa yokungaphinde kwemali, kwinxalenye ngenxa yamandla e-Burbon-Sfarline Bond, ihlala isetyenziselwa ukwenza imibhobho kunye nezikhongozeli zokusebenza kunye neekhemikhali ezisebenzayo.

Yenziwa njani i-ptfe?

I-ptfe yenziwe njengenye i-polymer. Inziwe ngetekhnoloji ye-ralymerical yasimahla usebenzisa i-tse yongezwa kwi-Polymerization kwinkqubo ye-batch kwimithombo yeendaba emanzini.

Isakhiwo sekhemikhali se-ptfe iyafana ne-polythyenene; Owona mahluko omkhulu kukuba ii-atom ze-hydrogen zitshintshwe ngokupheleleyo yi-fluorine. Nangona kunjalo, i-PE kwaye i-ptfe ilungiselelwe ngeendlela ezahlukeneyo.

Ubungakanani obukhulu bee-atorine iiatom zenza iyunifomu, i-sheaches eqhubekayo ejikeleze i-carbon-carbon, ukubonelela ngemolekyuli ngokuchasene nemichiza efanelekileyo, i-intertud yombane, kunye nokuzinza.

Iimpawu kunye nokusebenza kwe-ptfe

I-PTFE iza kwiifom ezintathu eziphambili zegranugules, ukusasazeka okusekwe emanzini, kunye nemida emihle.

Izinto ze-Gtfer PTFE ze-PTFE ziveliswa ngokumiswa kwe-polymerization kwindawo ephakathi esebenzisa incinci okanye engasasazi. Izinto ze-Getfer Ptfeur Ptfeur zisetyenziswa ngokuyintloko, i-isostatic icinezela kunye neendlela zokuphumelela.

Ukusasazeka kwamanzi asekwe kumanzi Sebenzisa i-polymerization esekwe kumanzi ngokusasazeka ngakumbi kunye nokuphazamiseka. Ukusasazeka okusekwe emanzini kusetyenziswa ngokuyintloko nakwindlela yokuphosa ifilimu.

I-Ptfered Ptfered ptfered ptfered i-ptfered ptfered i-pturecle i-white iveliswe yi-EMulIR ye-EULLONID. Umgubo we-PTFO WOPPFER unokuqhubekiswa kwi-flakes ngokuncamathisela ukupheliswa okanye ukongeza ukuphucula ukunyangwa.

Ezinye iipropathi ezibonakalayo ze-PTFe zibandakanya ukuxhathisa ubushushu obuphezulu kunye nokuxhamla kombane, i-inserture yekhemikhali, i-stertical ye-0.08 kunye ne-startic (i-static 0.01), kunye ne-260 ° C) .

I-PTFE yenye yezona zinto zinokuthenjwa xa kuziwa ekwenzeni amachiza. Ihlaselwe kuphela ziintsimbi ze-Alkali, ii-allic halsides ezinje nge-chrifline trifluoride (clf3) kunye ne-oxygen dissuralide (ye-OXYTNAP i-GAROORE kwiqondo lobushushu eliphezulu.

Iipropathi zoomatshini be-PTFFO zinomtsalane, kodwa azilunganga njengezinye iiplasitiki zobuchule kubushushu begumbi. Ukongeza iifilitha kungqiniwe ukuba yindlela ephumelelayo yokuphelisa lo mqobo. Kuluhlu lwayo oluqhelekileyo lobushushu, i-PTFO ibonisa iipropathi ezithile eziluncedo. Ezi ndawo zininzi zithintelwe ngokuphucula izinto eziguquguqukayo, njengeqondo lokufumana, ireyithi yokupholisa, njl njl.

I-PTFA ineepropathi ezithengiswayo zombane, i-diecturic ephantsi rhoqo kwaye i-insubse i-voltage. Isidlo esisezantsi esisezantsi kakhulu (2.0) sisiphumo sobume obunzima bokulinganisa kweMacromolecules.

Izinto ze-PTFO zikwabonisa iipropathi ezintle ze-thermal, ezingekho gwenxa lubalulekileyo ngaphantsi kwe-440 ° C.

Ikwahlaselwa yi-Deogradiations kunye ne-radiation, eqala kwidosi ye-0.02 ye-MRAD.

Ukungancedi kwezinto zePTFO

Izinto zemveli ze-PTFE azikho ngaphandle kwezinye iingxaki. bazi:

I-Creep kwaye inxibe ibuthathaka

Ayinakuqhutywa ziindlela zokulungisa zikarhulumente, kwaye iindlela ezifanelekileyo zihlala zingahlali kwaye zikhululeke.

Ubunzima ekungeneni

Utshintsho oluphezulu lobukhulu kufutshane nobushushu beglasi.

Ukunganyangeki kwe-radiation ephantsi

Iyonakalisa kwaye inokuvelisa i-pirub ingozi.

Ukubaluleka kweefilimu kunye neezongezo kwi-ptfe

Ukongezwa kweefilimu kunye noongezelelo kunokuphucula kakhulu iipropathi zoomatshini be-ptfe, ngakumbi banxibe irhafu. Iifilitha ezisetyenzisiweyo zibandakanya intsimbi, ikharbon, i-fiber yeglasi, i-carbon fiber, igrafu, i-bronze, intsimbi, njl.

I-fiber yeglasi : ukongezwa kwayo kuya kuphucula i-creep kwaye inxibe iipropathi ze-ptfe ngokuchaphazela ubushushu bayo obuphantsi nobungaphezulu. Ukongeza, imijikelezo ezele kakhulu yegilasi yenza kakuhle kwiindawo ezine-oxiding.

I-carbon fiber: i-carbon fiber ibalulekile ekunciphiseni i-curp, ukuphucula ukuqina, ukongeza ukuguquguquka kunye nokuguquguquka kwengqondo. I-ptfe iveliswe nge-carbon fiber firds ineendlela eziphezulu ze-firmal ngokuphumelela kunye nokulingana okuphantsi kolwando lwe-shirmal. I-carbon fiber i-inert ye-alkalis eyomeleleyo kunye ne-hydrofluoric acid (iglasi fiber ayichanekanga kuzo zombini ii-asidi). La macandelo alungele ukulungiselela iimoto ze-Automotive ezifana ne-abssurs.

Ikharbon: ikharbon njengesonge isongezelelo iya kunceda ukunciphisa i-curp, ukonyusa ubunzima, kunye nokuphucula ukuqhubela kwe-ptfe. Iziphumo ezifanayo zinokufezekiswa ngokuxuba i-PTFE kunye negrafu kunye nokwandisa ukuxhathisa i-carbon. Le mixube ilungele izicelo ezingathatyathwanga ezifana ne-piston amakhonkco kwii-cylinds.

I-bronze-igcwaliswe i-PTFE: Le quact iphumelele i-thermal elungileyo kunye neyemibane, yenzela ukuba ilungele ukusetyenziswa kwemithwalo egqithisileyo kunye nobushushu.

Izibonelelo zongeze iiFilillers

Iifilitha / ezongezelelo zibalulekile ukonyusa i-piresity ye-ptfe kwaye ichaphazele iipropathi zombane- inciphisa amandla kaDiacric ngelixa kusenziwa into yokutya.

Iifilitha zinokuphucula kakhulu ukusebenza kwe-ptfee kumaqondo omabini aphezulu.

Utshintsho kwiipropathi zeekhemikhali luxhomekeke kakhulu kuhlobo lwezinto ezisetyenzisiweyo, nangona kunjalo. Ngokubanzi, ishiya iziphumo ezilungileyo.

Izicelo zePPRE

Ngokwesiqhelo, i-thermoplastics esetyenziswayo isetyenziswa kwizicelo eziphezulu zomsebenzi ophezulu, ukucoceka okuphezulu, iqondo lobushushu eliphantsi, i-inserture yekhemikhali, i-subrest, i-hatictures, i-hatictures, i-HETEROT, i-HOTERE kunye ne-HOSTER. Nazi ezinye zezona zinto zixhaphakileyo ze-ptfe:

Ubunjineli - ibheri, i-nonstit yendawo yokuhlala, izihlalo zeValve, iiplagi, izinto ezinqabileyo, i-valves kunye neenxalenye zempompo.

I -patches zentliziyo-zentliziyo, graftiovascular grafts, indawo ye-LINGG.

Umzi-mveliso wekhemikhali -Ukukhetha kweempompo, i-dimpragms, impembelelo, abatshintshi besenzo, ii-autoclaves, iinqanawa zokugcina, iitanki zokugcina, iitanki zokugcina, iitanki zokugcina, njl.

I- Automotive -Izitywina ze-steft, i-Shaft Seals, i-Shafle, i-O-Rings, iibhutsi ze-Owel, i-Pubs, ukuqhuba kwamandla, ukuthunyelwa, nangaphezulu.

Umbane kunye ne-elektroniki - iibhodi zesekethe eziguqulelweyo eziprintiweyo, i-insullical yombane, njl.

Iitekhnoloji ezilungileyo kakhulu zokwenza i-ptfe

I-Ptfe's Rigid rinmer ye-Polymer ye-Polymer yenza ukuba kube nzima kakhulu ukuqhubekeka nokusebenzisa iindlela zemveli ezinje ngenaliti yokubumba kunye nokuphuma. Nangona kunjalo, i-visosity yayo ephezulu kakhulu kunye nobushushu obuphezulu bungancedi. Itekhnoloji yokuqhubela phambili yokuqhuba ngokuphatha i-powtersggy ilungele i-PTFI.

Ukutsala, ukubumba, ukucinezela, ukutyibilika okanye ukunamathisela ukuphuma, ukucofa isitampu, umatshini, ukupheliswa komgubo owenziwe owenziwe ngaphambili koomatshini abakhethekileyo.

Cola i-Extrusion Juds Petfe kunye ne-hydrocarbons, ezisetyenziselwa ukuyenza kwiteyiphu, umbhobho kunye nokufakelwa kwentambo. I-Hydrocarbons i-Evauperate ngaphambi kokuba inxenye ithathelwe ingqalelo.

Uluhlu lokuSebenza -200 ° C ukuya kwi-260 ° C.

FAQ

1. Ngaba i-polytetrafliothylene ibangela umhlaza?

Impendulo. I-PTFE iboniswe ukuba iyityhefu kwimpilo yabantu kuba ine-carcinogen ebizwa ngokuba yi-PFOAN. Nangona kunjalo, akukho sidingo sokukhathazeka njengengubo engeyiyo i-ptfe engasasebenziyo le nto.

2. Yintoni umbhobho we-ptfe esetyenziselwa?

Impendulo. Ityhubhu ye-PTFIng isetyenziswa rhoqo njenge laboratory tub, apho ukumelana nemichiza kunye nokucoceka kubaluleke kakhulu. I-PTFE inomlinganiso ophantsi kakhulu wokuxinana kwaye yaziwa ngokuba yinye yeendlela "ezityibilika".

3. Luhlobo luni lweplastiki oluphambili?

Impendulo. I-ptfe yi-thermoplastic polymer eyi-fluoropolymer eyenziwe ngeathom yekharbon kunye neeathom ze-fluorine.

4. Yintoni ukusetyenziswa kweBhodi yePPEFE?

Impendulo. Amaphepha e-PPRU asetyenziswa kwizicelo ezahlukeneyo ezifana ne-pmpfe e-ancanks ye-ptfesed kunye ne-ptfe. Iluxhathisa kakhulu iigesi, amanzi, iikhemikhali, i-fulls kunye neoyile.