Is PTFE Tubing Flexible?| BESTEFLON

Polytetrafluoroethylene (polytetrafluoroethylene) tabbas shine mafi yawan amfani da fluoropolymer saboda yana da halaye da yawa waɗanda suka sa ya zama kyakkyawan abu don aikace-aikace masu yawa.Ya fi sauƙi fiye da sauran bututu masu kama kuma yana iya tsayayya da kusan dukkanin sinadarai na masana'antu

Matsakaicin zafin jiki yana kusan -330°F zuwa 500°F, yana samar da mafi girman kewayon zafin jiki tsakanin masu amfani da fluoropolymers.Bugu da ƙari, yana da kyawawan kaddarorin lantarki da ƙarancin ƙarfin maganadisu.Ptfe tubing shine bututun dakin gwaje-gwaje da aikace-aikacen da aka fi amfani da su inda juriya da tsabta suke da mahimmanci.PTFEyana da ƙarancin ƙima na juzu'i kuma yana ɗaya daga cikin mafi yawan abubuwan "zamewa" da aka sani

Siffofin:

100% tsarkakakken PTFE guduro

Idan aka kwatanta da FEP, PFA, HP PFA, UHP PFA, ETFE, ECTFE, mafi sassauƙan bututun fluoropolymer

Chemically inert, resistant zuwa kusan duk masana'antu sunadarai da kaushi

Faɗin zafin jiki

Low shigar

Ƙarshe mai laushi mara sanda

Mafi ƙarancin juzu'i

Kyakkyawan aikin lantarki

Mara ƙonewa

Mara guba

Aikace-aikace:

dakin gwaje-gwaje

Tsarin sinadaran

Analysis da sarrafa kayan aiki

Kula da fitar da iska

Ƙananan zafin jiki

high zafin jiki

Wutar Lantarki

ozone

Tsarin kwayoyin PTFE

Polytetrafluoroethylene (PTFE) an yi shi ta hanyar polymerization na yawancin kwayoyin tetrafluoroethylene.

Wannan zane mai sauƙi na PTFE baya nuna tsari mai girma uku na kwayoyin.A cikin mafi sauƙi na kwayoyin halitta (ethylene), kashin bayan carbon na kwayoyin yana haɗuwa ne kawai ta hanyar atom na hydrogen, kuma wannan sarkar tana da sassauƙa sosai-ba shakka ba kwayoyin halitta ba ne.

Duk da haka, a cikin polytetrafluoroethylene, atom ɗin fluorine a cikin ƙungiyar CF2 ya isa ya tsoma baki tare da atom na fluorine akan ƙungiyar da ke kusa.Dole ne ku tuna cewa kowane zarra na fluorine yana da nau'i-nau'i 3 na electrons guda uku da ke fitowa

Sakamakon wannan shine don murkushe jujjuyawar haɗin carbon-carbon guda ɗaya.Za a iya tsara kwayoyin zarra na fluorine ta yadda za su yi nisa sosai daga atom ɗin fluorine da ke kusa.Rotation yana da alaƙa da haɗuwa tare tsakanin zarra na zane-zane a kusa da carbon atoms-wanda ke sa juyawa kuzari

Ƙarfin ƙin jini yana kulle kwayoyin halitta zuwa siffa ta sanda, kuma ana shirya ƙwayoyin fluorine a cikin karkace mai laushi sosai - ana shirya ƙwayoyin fluorine a cikin karkace kewaye da kashin bayan carbon.Za a matse waɗannan filayen gubar tare kamar dogayen fensir na bakin ciki a cikin akwati

Wannan tsari na kusanci yana da tasiri mai mahimmanci akan dakarun intermolecular, kamar yadda zaku gani

Ƙungiyoyin intermolecular da kuma wurin narkewa na PTFE

An nakalto wurin narkewar polytetrafluoroethylene a matsayin 327 ° C.Wannan yana da girma sosai ga wannan polymer, don haka dole ne a sami babban ƙarfin van der Waals tsakanin kwayoyin

Me yasa mutane ke ikirarin sojojin van der Waals a PTFE suna da rauni?

Ƙarfin watsawa na van der Waals yana faruwa ne ta hanyar jujjuyawar dipoles na wucin gadi da aka haifar lokacin da electrons a cikin kwayoyin ke motsawa.Saboda kwayoyin PTFE yana da girma, za ku yi tsammanin babban ƙarfin watsawa saboda akwai da yawa electrons da za su iya motsawa.

Halin gaba ɗaya shine cewa mafi girman kwayar halitta, mafi girman ikon watsawa

Koyaya, PTFE yana da matsala.Fluorine yana da electronegative sosai.Yana ƙoƙarin ɗaure electrons a cikin haɗin carbon-fluorine tare sosai, don haka tam cewa electrons ba za su iya motsawa kamar yadda kuke tunani ba.Mun bayyana haɗin carbon-fluorine kamar yadda ba shi da ƙarfin polarization

Sojojin Van der Waals kuma sun haɗa da hulɗar dipole-dipole.Amma a cikin polytetrafluoroethylene (PTFE), kowane kwayar halitta yana kewaye da Layer na ƙananan zarra na fluorine da ba su da kyau.A wannan yanayin, kawai hulɗar da za ta yiwu tsakanin kwayoyin halitta shine ƙin juna!

Don haka ƙarfin tarwatsawa ya fi rauni fiye da yadda kuke zato, kuma hulɗar dipole-dipole zai haifar da ƙima.Ba abin mamaki ba ne mutane suka ce sojojin van der Waals a PTFE suna da rauni sosai.Ba za ku sami ainihin abin ƙyama ba, saboda tasirin tasirin watsawa ya fi girma fiye da hulɗar dipole-dipole, amma tasirin net shine cewa ƙarfin van der Waals zai yi rauni.

Amma PTFE yana da madaidaicin wurin narkewa, don haka ƙarfin da ke tattare da kwayoyin halitta dole ne ya kasance da ƙarfi sosai.

Ta yaya PTFE za ta sami babban wurin narkewa?

PTFE yana da lu'ulu'u sosai, a wannan ma'anar akwai babban yanki, kwayoyin suna cikin tsari na yau da kullun.Ka tuna, ana iya tunanin kwayoyin PTFE a matsayin sanduna masu tsayi.Waɗannan sandunan za a haɗa su tare

Wannan yana nufin cewa kodayake kwayoyin ptfe ba zai iya samar da manyan dipoles na wucin gadi ba, ana iya amfani da dipoles da kyau sosai.

Don haka sojojin van der Waals a PTFE suna da rauni ko karfi?

Ina tsammanin za ku iya zama daidai!Idan an shirya sarƙoƙin polytetrafluoroethylene (PTFE) ta yadda babu kusanci sosai tsakanin sarƙoƙi, ƙarfin da ke tsakanin su zai yi rauni sosai kuma wurin narkewa zai yi ƙasa kaɗan.

Amma a duniyar gaske, kwayoyin halitta suna cikin kusanci.Sojojin Van der Waals na iya zama ba su da ƙarfi kamar yadda suke da ƙarfi, amma tsarin PTFE yana nufin suna jin mafi girman sakamako, samar da gabaɗayan haɗin gwiwar intermolecular da manyan wuraren narkewa.

Wannan ya bambanta da sauran dakarun, kamar ƙarfin hulɗar dipole-dipole, wanda aka rage kawai sau 23, ko sau biyu an rage nisa da sau 8.

Saboda haka, m shiryawa na sanda-dimbin yawa kwayoyin a cikin PTFE maximizes da tasiri na watsawa.

Kaddarorin da ba na sanda ba

Wannan shine dalilin da ya sa ruwa da mai ba sa makale a saman PTFE, kuma me yasa za ku iya soya ƙwai a cikin kwanon rufi mai rufi ba tare da mannewa kan kwanon rufi ba.

Kuna buƙatar yin la'akari da abin da dakarun zasu iya gyara wasu kwayoyin halitta a samanPTFE.Yana iya haɗawa da wani nau'in haɗin sinadarai, van der Waals force ko hydrogen bond

Haɗin kimiyya

Haɗin gwiwar carbon-fluorine yana da ƙarfi sosai, kuma ba zai yuwu ga wasu kwayoyin halitta su isa sarkar carbon don haifar da wani canji na canji ya faru ba.Ba shi yiwuwa haɗin sinadarai ya faru

van der Waals sojojin

Mun ga cewa rundunar van der Waals a PTFE ba ta da ƙarfi sosai, kuma hakan zai sa PTFE ta sami babban narke, saboda kwayoyin suna da kusanci sosai har suna da tasiri sosai.

Amma ya bambanta ga sauran kwayoyin da ke kusa da saman PTFE.Ƙananan ƙananan ƙwayoyin cuta (irin su kwayoyin ruwa ko kwayoyin mai) za su sami ɗan ƙaramin lamba tare da saman, kuma kawai za a haifar da wani ɗan ƙaramin jan hankali na van der Waals.

Babban kwayoyin halitta (kamar furotin) ba zai kasance mai siffar sanda ba, don haka babu isasshiyar hulɗa mai tasiri tsakaninsa da saman don shawo kan ƙarancin polarization na PTFE.

Ko ta yaya, ƙarfin van der Waals tsakanin saman PTFE da abubuwan da ke kewaye da shi ƙananan ne kuma mara amfani.

Hydrogen bond

Kwayoyin PTFE da ke saman saman an nannade su gaba daya da kwayoyin fluorine.Wadannan kwayoyin zarra na fluorine suna da karfin lantarki, don haka duk suna dauke da wani nau'i na caji mara kyau.Kowace fluorine kuma yana da nau'i-nau'i 3 na electrons masu tasowa

Waɗannan su ne sharuɗɗan da ake buƙata don samar da haɗin gwiwar hydrogen, kamar su guda biyu akan fluorine da hydrogen atom a cikin ruwa.Amma wannan a fili ba zai faru ba, in ba haka ba za a sami sha'awa mai karfi tsakanin kwayoyin PTFE da kwayoyin ruwa, kuma ruwan zai tsaya ga PTFE.

Takaitawa

Babu wata hanya mai inganci don sauran ƙwayoyin cuta don samun nasarar haɗa saman PTFE, don haka yana da farfajiyar da ba ta tsaya ba.

Ƙananan gogayya

Matsakaicin juzu'i na PTFE yayi ƙasa sosai.Wannan yana nufin cewa idan kuna da saman da aka lulluɓe da ptfe, wasu abubuwa za su zamewa cikin sauƙi.

Da ke ƙasa akwai taƙaitaccen taƙaitaccen abin da ke faruwa.Wannan ya fito ne daga takarda 1992 mai suna "Friction and Wear of Polytetrafluoroethylene".

A farkon zamewar, PTFE surface karya da taro da aka canjawa wuri zuwa duk inda yake zamiya.Wannan yana nufin cewa saman PTFE zai sa.

Yayin da zamewar ta ci gaba, tubalan sun buɗe cikin fina-finai na bakin ciki.

A lokaci guda kuma, ana fitar da saman PTFE don samar da tsari mai tsari.

Dukansu saman da ke hulɗa yanzu suna da ingantattun ƙwayoyin PTFE waɗanda za su iya zamewa a kan juna

A sama shi ne gabatarwar polytetrafluoroethylene, polytetrafluoroethylene za a iya sanya a cikin wani iri-iri na kayayyakin, mu ne na musamman a yin ptfe tube,ptfe tiyo masana'antun, barka da zuwa don sadarwa tare da mu