Labarai - FKM Roba vs PTFE: Wanne shine mafi kyawun kayan da aka yi da fluoride

Robar fluorine (FKM) wani elastomer ne mai thermosetting, yayin da polytetrafluoroethylene (PTFE) wani abu ne mai thermoplastic. Dukansu kayan fluorin ne, kewaye da atom ɗin fluorine ta hanyar atom ɗin carbon, wanda hakan ke sa su jure wa sinadarai sosai. A cikin wannan labarin, maganin polymer na TRP ya kwatanta kayan biyu tsakanin FKM daPTFEdon tantance wanene kayan ƙarshe da aka yi amfani da fluoride sannan a zaɓi na ƙarsheMai ƙera bututun PTFE

Fa'idodin robar FKM da PTFE

Asali:

FKM: Jiragen sama a lokacin Yaƙin Duniya na Biyu sun sha fama da zubar da hatimin nitrile, wanda bai da ƙarfin zafin da ake buƙata don aikace-aikace daban-daban. Rashin daidaiton sinadarai na haɗin fluorocarbon yana nufin cewa elastomers masu fluorined, ko fluoroelastomers, sakamako ne na halitta. Don haka aka fara sayar da robar FKM a shekarar 1948

PTFE: A shekarar 1938, masanin kimiyyar DuPont Roy Plancott ya gano polytetrafluoroethylene bisa kuskure. Plunkett ya gwada na'urorin sanyaya daki kuma ya adana su a cikin silinda. Abin mamaki, waɗannan iskar gas sun taru, suka bar wani farin abu mai kakin zuma, wanda ba ya amsawa da wani sinadarai kuma yana iya jure yanayin zafi mai tsanani. DuPont ya yi rijistar alamar farko ta kayan PTFE-ptfe a shekarar 1945.

Hukunci: Ci gaban PTFE ya faru ne sakamakon wani abu mai ban sha'awa, wanda ya haifar da haihuwar wani abu mai ban mamaki. Duk da haka, wani abu mai ban sha'awa, robar FKM, ya zama dole gaba ɗaya a shekarun yaƙi. Saboda wannan dalili, gudummawar tarihi ta FKM fluoroelastomer yana nufin cewa ya ɗan fi kyau a wannan zagayen gasa.

Kadarorin:

Robar FKM: Robar FKM tana ɗauke da ƙarfi da haɗin carbon-fluorine, wanda hakan ke sa ta zama mai matuƙar sinadarai, mai jure zafi da kuma juriya ga iskar shaka. FKM tana ɗauke da adadi daban-daban na haɗin carbon-hydrogen (haɗin gwiwa da rauni a zafi da juriyar sinadarai), amma har yanzu tana da ƙarfi a juriyar sinadarai fiye da sauran elastomers.

PTFE: Polytetrafluoroethylene ya ƙunshi sarkar atom na carbon, tare da atom na fluorine guda biyu a kan kowace atom na carbon. Waɗannan atom na fluorine suna kewaye da sarkar carbon don samar da wani molecule mai yawa tare da haɗin carbon-fluorine mai ƙarfi da tsarin polymer, wanda ke sa PTFE ba ya aiki ga yawancin sinadarai.

Hukunci: Dangane da sinadaran da suka ƙunsa kawai, PTFE ba ta da haɗin carbon-hydrogen, wanda hakan ya sa ta fi FKM aiki a matsayin sinadarai marasa aiki (kodayake FKM har yanzu tana da juriya sosai ga sinadarai). Saboda wannan dalili, PTFE kawai inuwar FKM ce a wannan zagaye.

Fa'idodi:

FKM:

Faɗin zafin jiki (-45°C-204°C)

Kyakkyawan juriya ga sinadarai

Babban yawa, kyakkyawan rubutu

Kyakkyawan halayen injiniya

Za a iya tsara shi don rage fashewar abubuwa, CIP, SIP

PTFE:

Juriyar zafin jiki mai faɗi (-30°C zuwa +200°C)

Ba ya aiki a sinadarai

Kyakkyawan rufin lantarki

Sanyi da zafi suna da matuƙar jure wa

Ba mai mannewa ba, mai hana ruwa

Matsakaicin gogayya shine mafi ƙanƙanta a cikin dukkan daskararru

Hukunci: Ba zai yiwu a raba su a wannan zagaye ba. FKM yana ba da juriya ga zafi mafi girma, amma bai kai ga aikin PTFE ba dangane da juriya ga sinadarai. Kuma PTFE ba ta da juriya ga zafi kaɗan, amma tana ba da hanyoyi da yawa na halayen da ba su da mannewa

Rashin amfani:

FKM:

Shin zai kumbura a cikin wani sinadari mai fluoride?

Ba za a iya amfani da shi tare da ƙarfe mai narkewa ko narkeccen alkali ba

Farashi ya fi sauran waɗanda ba fluorocarbons ba

Zaɓin FKM mara kyau don aikace-aikacen na iya haifar da gazawa cikin sauri

Ƙananan zafin jiki na iya zama tsada

PTFE:

Ƙarancin ƙarfi da tauri

Ba za a iya sarrafa narkewar abinci ba

Rashin juriya ga radiation

Taurin Babban Teku yana sa PTFE ya yi wahalar rufewa

Zoben Ptfe suna da yawan zubar ruwa mafi girma fiye da sauran elastomers

Rashin daidaituwa yana sa shigarwar hatimi da yawa ba zai yiwu ba

Hukunci: Gabaɗaya, robar FKM ta lashe wannan zagayen gasa tare da ƙarfinta mafi girma, sassauci da ikon rufewa. Tabbas, idan babu abin da ya isa sai hatimin da ba shi da sinadarai, to PTFE kyakkyawan zaɓi ne. Duk da haka, FKM tana ba da ƙarin sassauci a kowane fanni!

Aikace-aikace:

FKM:

Motoci

Sarrafa sinadarai

Mai da iskar gas

Injinan aiki masu nauyi

sararin samaniya

Wasu da yawa

PTFE:

Kayan aikin sarrafa sinadarai

Bawuloli

Sufurin sinadarai

Famfon diaphragms

Hukunci: Wani yaƙi ne mai kisa! FKM tana da nau'ikan aikace-aikace iri-iri, kuma ana iya amfani da ita ga wasu aikace-aikace masu nauyi. Duk da haka, duk da iyakokinta, kayan PTFE suna ba da mafita mafi kyau ga aikace-aikacen da suka fi wahala waɗanda suka haɗa da matsin lamba mai tsanani, zafin jiki da sinadarai masu lalata.

Kudin:

Robar FKM samfuri ne mai inganci saboda sinadaran da ke cikinta da kuma juriyar sinadarai daga baya. Idan ba ku yi la'akari da halayen sinadarai da juriyar zafin jiki ba, za ku iya zaɓar elastomer mai rahusa.

PTFE: Kayan PTFE suma samfuri ne mai inganci. Haka kuma, idan zafin jiki, matsin lamba, da sinadarai masu lalata da ke cikin aikace-aikacenku ba su wuce mafi munin yanayi ba, to madadin mai rahusa na iya zama abin so. Domin samun mafi kyawun aikin rufewa, ana haɗa PTFE da elastomer core don samar da juriya ga matsi.

Hukunci: Dukansu FKM da PTFE samfura ne masu inganci saboda dalilai masu kyau. Duk waɗannan kayan suna da halaye na musamman, wanda ke bayyana farashin samar da su. Duk da haka, ya kamata ku tuna cewa don aikace-aikacen da suka wuce gona da iri, duka suna ba da fasaloli na musamman. A wannan yanayin, kuna samun abin da kuka biya, kuma madadin masu araha sau da yawa yakan gaza da sauri. Wannan a ƙarshe tattalin arziki ne mara kyau.

Sakamako: Gabaɗaya, sassaucin FKM yana ba shi fa'ida a cikin wannan tseren hasashe. A ƙarshe, waɗannan kayan biyu masu fluorin suna ba da juriya ta musamman ga sinadarai da juriyar zafin jiki. Duk da haka, a matsayin filastik, PTFE ya fi tauri fiye da FKM; yana mai da shi ya dace kawai don aikace-aikacen rufewa mafi tsauri inda matsin lamba mai yawa da sinadarai masu lalata sune babban abin damuwa. Faɗin amfani da FKM a matsayin kayan rufewa, to, ya tabbatar da nasararsa!

Muna fatan wannan kwatancen robar FKM da PTFE zai ba ku fahimtar halaye daban-daban na kowane abu. Dole ne a jaddada cewa hanya mafi kyau don zaɓar kayan da suka dace da aikace-aikacenku ita ce yin magana da ƙwararre wanda zai iya gaya muku nau'ikan kayan aiki daban-daban kuma ya dace da mafita mafi dacewa da aikace-aikacenku.

Abin da ke sama yana game da gabatarwar abubuwan da suka shafi FKM da PTFE, ina fatan wannan labarin zai iya taimaka muku, mu ƙwararru ne daga China.Masu samar da tiyo na PTFE, welcome to consult our products and please freely contact us at sales 07@zx-ptfe.com