Fluorine roba (FKM) elastomer ne na thermosetting, yayin da polytetrafluoroethylene (PTFE) shine thermoplastic.Dukansu abubuwa ne masu ƙyalli, kewaye da atom ɗin fluorine ta carbon atom, wanda ke sa su juriya da sinadarai mai ban mamaki.A cikin wannan labarin, TRP polymer bayani ya kwatanta kayan biyu tsakanin FKM daPTFEdon sanin ko wane ne kayan da aka saka a ciki kuma zaɓi na ƙarshePTFE hose manufacturer
Amfanin roba FKM da PTFE
Asalin:
FKM: Jirgin sama a lokacin yakin duniya na biyu yana fama da yabo na nitrile seals, wanda ba shi da ƙarancin yanayin zafi da ake buƙata don aikace-aikace daban-daban.Rashin rashin kuzarin sinadarai na haɗin gwiwar fluorocarbon yana nufin cewa elastomer masu ƙyalli, ko fluoroelastomer, ƙarshe ne na halitta.Don haka aka fara sayar da roba ta FKM a shekarar 1948
PTFE: A cikin 1938, masanin kimiyyar DuPont Roy Plancott ya gano polytetrafluoroethylene ta hanyar haɗari.Plunkett yayi gwaji tare da firji kuma ya adana su a cikin silinda.Abin da ya ba shi mamaki shi ne, wadannan iskar gas sun taru, suka bar wani farin abu mai kakin zuma, wanda ba ya amsa da wani sinadari kuma yana iya jure yanayin zafi sosai.DuPont ya yi rajistar alamar farko ta kayan PTFE-ptfe a cikin 1945
Hukunci: Ci gaban PTFE daidaituwa ne na makoma mai ban sha'awa, wanda ya haifar da haihuwar wani abu mai ban mamaki.Duk da haka, wani abu mai ban sha'awa daidai, FKM roba, ya zama dole gaba daya a cikin shekarun yaki.Don haka, gudummawar tarihi na FKM fluoroelastomer yana nufin cewa ya ɗan fi kyau a wannan zagaye na gasar
Kaddarori:
FKM roba: FKM roba yana dauke da karfi carbon-fluorine bond, sanya shi sosai sinadaran, zafi jure da hadawan abu da iskar shaka.FKM ya ƙunshi nau'in nau'i daban-daban na haɗin carbon-hydrogen (haɗi tare da ƙarancin zafi da juriya na sinadarai), amma har yanzu yana da ƙarfin juriya na sinadarai fiye da yawancin sauran elastomers.
PTFE: Polytetrafluoroethylene yana kunshe da sarkar carbon atom, tare da atom na fluorine guda biyu akan kowane carbon atom.Wadannan kwayoyin zarra na fluorine suna kewaye da sarkar carbon don samar da kwayoyin halitta mai yawa tare da karfi mai karfi na carbon-fluorine da tsarin polymer, yana sa PTFE rashin aiki ga yawancin sinadarai.
Hukunci: Dangane da nau'ikan sinadarai na su kawai, PTFE ba shi da abubuwan haɗin carbon-hydrogen, wanda ya sa ya fi FKM rashin ƙarfi (ko da yake FKM har yanzu yana da juriya mai ƙarfi).Saboda wannan dalili, PTFE shine kawai inuwar FKM a wannan zagaye
Amfani:
FKM:
Faɗin zafin jiki (-45°C-204°C)
Kyakkyawan juriya na sinadarai
Babban yawa, kyakkyawan rubutu
Good inji Properties
Za a iya ƙirƙira shi don lalatawar fashewa, CIP, SIP
PTFE:
Faɗin zafin jiki (-30°C zuwa +200°C)
Kemikali rashin aiki
Kyakkyawan rufin lantarki
Sosai sanyi da zafi jure
Mara mannewa, mai hana ruwa
Matsakaicin juzu'i shine mafi ƙanƙanta a tsakanin duk daskararru
Hukunci: Ba shi yiwuwa a raba su wannan zagayen.FKM yana ba da mafi girman juriya na zafin jiki, amma baya kaiwa aikin PTFE dangane da juriya na sinadarai.Kuma PTFE yana da ɗan ƙarancin zafi, amma yana ba da hanyoyi da yawa na kaddarorin marasa mannewa
Rashin hasara:
FKM:
Shin zai kumbura a cikin kaushi mai fluorine?
Ba za a iya amfani da narkakkar ko gaseous alkali karafa
Farashin ya fi sauran abubuwan da ba na fluorocarbons ba
Zaɓin FKM mara kyau don aikace-aikacen na iya haifar da gazawa cikin sauri
Ƙananan ma'aunin zafin jiki na iya zama tsada
PTFE:
Ƙananan ƙarfi da taurin kai
Ba za a iya sarrafa shi ba
Rashin juriya na radiation
Babban taurin bakin teku yana sa PTFE wahalar hatimi
Ptfe o-rings suna da mafi girman adadin ɗigogi fiye da sauran elastomers
Rashin elasticity yana sa shigarwar hatimi da yawa ba zai yiwu ba
Hukunci: Gabaɗaya, robar FKM ta lashe wannan zagayen gasa da ƙarfinsa mai ƙarfi, sassauci da iya rufewa.Tabbas, idan babu komai sai hatimin inert na sinadarai bai isa ba, to PTFE zabi ne mai kyau.Koyaya, FKM yana ba da ƙarin sassauci ta kowane fanni!
Aikace-aikace:
FKM:
Motoci
sarrafa sinadaran
Mai da gas
Kayan aiki masu nauyi
Jirgin sama
Wasu da yawa
PTFE:
Kayan aikin sarrafa sinadarai
Valves
Sinadarin sufuri
Pump diaphragms
Hukunci: Yana da wani m yaki!FKM yana da fa'ida na aikace-aikace, kuma ana iya amfani da shi ga wasu aikace-aikace masu nauyi.Koyaya, duk da iyakokinta, kayan PTFE suna ba da mafita na ƙarshe don aikace-aikacen mafi wahala waɗanda suka haɗa da matsananciyar matsa lamba, zafin jiki da sinadarai masu lalata.
Farashin:
FKM roba samfuri ne mai ƙima saboda abubuwan da ke tattare da sinadarai da juriyar sinadarai na gaba.Idan ba ku yi la'akari da kaddarorin sinadarai da juriya na zafin jiki ba, zaku iya zaɓar elastomer mai rahusa.
PTFE: PTFE kayan kuma samfuri ne mai inganci.Hakazalika, idan zafin jiki, matsa lamba, da sinadarai masu lalata da ke cikin aikace-aikacenku ba su wuce mafi girman lokuta ba, to mafi arha madadin na iya zama kyawawa.Domin samun mafi kyawun aikin hatimi, PTFE an haɗa shi da elastomer core don samar da juriya na matsawa.
Hukunci: Dukansu FKM da PTFE samfurori ne masu inganci don dalilai masu kyau.Duk waɗannan kayan biyu suna da kaddarorin musamman, wanda ke bayyana farashin samar da su.Koyaya, ya kamata ku tuna cewa don matsananciyar aikace-aikacen, duka biyu suna ba da fasali na musamman.A wannan yanayin, kuna samun abin da kuke biya, kuma zaɓuɓɓuka masu arha galibi suna kasawa cikin sauri.Wannan a ƙarshe tattalin arzikin da ba daidai ba ne.
Sakamako: Gabaɗaya, sassaucin FKM yana ba shi fa'ida a cikin wannan tseren hasashe.Daga ƙarshe, duka waɗannan abubuwan da aka fitar da fluorined suna ba da juriya na musamman na sinadarai da juriya na zafin jiki.Koyaya, a matsayin filastik, PTFE ya fi tsayi fiye da FKM;yin shi kawai dace da mafi matsananci aikace-aikacen rufewa inda babban matsin lamba da sinadarai masu lalata sune babban abin damuwa.Faɗin fa'ida na FKM azaman kayan hatimi yana da, da kyau, ya tabbatar da nasarar sa!
Muna fatan wannan kwatankwacin FKM roba da PTFE zai ba ku kyakkyawar fahimta game da halaye daban-daban na kowane abu.Dole ne a jaddada cewa hanya mafi kyau don zaɓar kayan da ya fi dacewa don aikace-aikacenku shine yin magana da ƙwararren wanda zai iya gaya muku nau'o'in kayan aiki daban-daban kuma ya dace da mafita mafi dacewa don aikace-aikacenku.
Abin da ke sama game da gabatarwar abun ciki na FKM da PTFE ne, Ina fatan wannan labarin zai iya taimaka muku, daga ƙwararrun Sin nePTFE bututu masu kaya, welcome to consult our products and please freely contact us at sales 02@zx-ptfe.com
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Lokacin aikawa: Afrilu-16-2021