Mawu Oyamba
M'mafakitale amakono, zida za mphira zakhala zofunikira kwambiri chifukwa cha mawonekedwe ake apadera monga elasticity, kukana kuvala, komanso kukana mankhwala. Pakati pawo, mphira wa fluorine (FKM) ndi perfluoroether rubber (FFKM) zimawoneka ngati mphira wothamanga kwambiri, wotchuka chifukwa cha mankhwala apamwamba kwambiri komanso kutentha kwambiri. Kusanthula kwatsatanetsataneku kumayang'ana kusiyana, kagwiritsidwe ntchito, ndalama, mafomu, ndi katundu wa FKM ndi FFKM, ndicholinga chopereka zidziwitso zofunikira kwa okhudzidwa nawo m'mafakitale okhudzana nawo.
Kusiyana Kwakukulu Pakati pa Fluorine Rubber (FKM) ndi Perfluoroether Rubber (FFKM)
Kapangidwe ka Chemical
Kusiyana kwakukulu pakati pa FKM ndi FFKM kuli pamapangidwe awo amankhwala. FKM ndi polima pang'ono fluorinated ndi carbon-carbon bonds (CC) mu unyolo wake waukulu, pamene FFKM ndi polima mokwanira fluorinated ndi mpweya carbon-oxygen-carbon (COC), yolumikizidwa ndi maatomu mpweya (O). Kusiyanasiyana kwamapangidwe awa赋予FFKM kukana kwamphamvu kwamankhwala komanso kutentha kwambiri poyerekeza ndi FKM.
Kukaniza Chemical
Unyolo waukulu wa FFKM, wopanda ma bondi a carbon-carbon, umapereka kukana kowonjezereka kwa media media. Monga momwe zikusonyezedwera mu chithunzi chotsatirachi, mphamvu zomangira za carbon-hydrogen bonds ndizochepa kwambiri (pafupifupi 335 kJ / mol), zomwe zingapangitse FKM kukhala yosagwira ntchito muzitsulo zolimba za okosijeni ndi polar solvents poyerekeza ndi FFKM. FFKM imalimbana ndi pafupifupi ma media onse odziwika, kuphatikiza ma acid amphamvu, maziko, ma organic solvents, ndi ma oxidants.
Kukana Kutentha Kwambiri
FFKM imachitanso bwino pakukana kutentha kwambiri. Ngakhale kutentha kosalekeza kwa FKM kumachokera ku 200-250 ° C, FFKM imatha kupirira kutentha mpaka 260-300 ° C. Kukhazikika kwa kutenthaku kumapangitsa FFKM kukhala yoyenera kugwiritsidwa ntchito m'malo ovuta kwambiri.
Minda Yofunsira
Fluorine Rubber (FKM)
FKM imagwiritsidwa ntchito kwambiri m'magawo osiyanasiyana chifukwa cha kukana kwake kwamankhwala komanso kukana kutentha kwambiri:
- Makampani Oyendetsa Magalimoto: FKM imagwiritsidwa ntchito popanga zidindo, zosindikizira zamafuta, mphete za O, ndi zina zambiri, makamaka m'mainjini ndi makina otumizira.
- Makampani Opanga Chemical: FKM imagwiritsidwa ntchito ngati zisindikizo mu mapaipi, mavavu, mapampu, ndi zida zina pofuna kupewa kutayikira kwa media.
- Makampani a Zamagetsi: Amagwiritsidwa ntchito popanga zigawo zamawaya ndi zingwe, makamaka m'malo otentha kwambiri komanso owononga mankhwala.
Perfluoroether Rubber (FFKM)
FFKM imagwiritsidwa ntchito m'magawo omwe amafunikira kukana kwamankhwala komanso kutentha kwambiri:
- Zamlengalenga: FFKM imagwiritsidwa ntchito ngati zosindikizira mundege ndi zakuthambo kuti zipirire kutentha kwambiri komanso malo okhala ndi mankhwala.
- Makampani a Semiconductor: Amagwiritsidwa ntchito ngati zisindikizo mu zida zopangira semiconductor kuti apewe kutayikira kwamafuta.
- Makampani a Petrochemical: FFKM imagwiritsidwa ntchito posindikiza pazida zotentha kwambiri komanso zopanikizika kwambiri m'malo oyenga mafuta ndi mafakitale amafuta.
Mtengo ndi Mtengo
Kukwera mtengo kwa FFKM kumabweretsa mtengo wamsika wokwera kwambiri poyerekeza ndi FKM. Kuvuta kwa zinthu zopangira ndi kupanga kwa FFKM kumakweza mtengo wake. Komabe, chifukwa chakuchita bwino kwa FFKM m'malo ovuta kwambiri, mtengo wake wapamwamba ndi wovomerezeka pamapulogalamu ena.
Fomu ndi Processing
Fluorine Rubber (FKM)
FKM nthawi zambiri imaperekedwa ngati mphira wolimba, mphira wophatikizika, kapena magawo opangidwa kale. Njira zake zogwirira ntchito zimaphatikizapo kuponderezana, kutulutsa, ndi jekeseni. FKM imafuna zida zapadera ndi magawo amachitidwe chifukwa cha kutentha kwake kwakukulu.
Perfluoroether Rubber (FFKM)
FFKM imaperekedwanso ngati mphira wolimba, mphira wophatikizika, kapena magawo opangidwa kale. Kukana kwake kutentha kwambiri kumafuna kutentha kwapamwamba kwambiri komanso zida zolimba kwambiri komanso zofunikira pakukonza.
Kufananiza Magwiridwe
Kukaniza Chemical
Kukaniza kwamankhwala kwa FFKM ndikobwinoko kuposa kwa FKM. FFKM imalimbana ndi pafupifupi ma media onse odziwika, kuphatikiza ma acid amphamvu, maziko, ma organic solvents, ndi ma oxidants. Ngakhale FKM imaperekanso kukana kwamankhwala kwabwino, sikothandiza kwambiri mumafuta ena amphamvu ndi zosungunulira za polar poyerekeza ndi FFKM.
Kukana Kutentha Kwambiri
Kukana kwa kutentha kwa FFKM ndikopambana kwa FKM. Kutentha kosalekeza kwa FKM kumakhala 200-250 ° C, pomwe FFKM imatha kufikira 260-300 ° C. Kukhazikika kwa kutenthaku kumapangitsa FFKM kuti igwiritsidwe ntchito kwambiri m'malo ovuta kwambiri.
Mechanical Magwiridwe
Onse a FKM ndi FFKM ali ndi zida zamakina abwino kwambiri, kuphatikiza kutsika kwambiri, kukana kuvala, komanso kukana misozi. Komabe, zida zamakina a FFKM zimakhala zokhazikika pakutentha kwambiri, zomwe zimapangitsa kuti zikhale zodalirika pakugwiritsa ntchito kutentha kwambiri.
Zoyembekeza Zamsika
Ndi kupita patsogolo kosalekeza kwaukadaulo wamafakitale, kufunikira kwa zida za mphira zogwira ntchito kwambiri kukukulirakulira. FKM ndi FFKM ali ndi chiyembekezo chogwiritsa ntchito m'magawo osiyanasiyana chifukwa chakuchita bwino kwambiri:
- Makampani Oyendetsa Magalimoto: Kupanga magalimoto amagetsi atsopano kukukulitsa kufunikira kwa zisindikizo zosagwirizana ndi kutentha kwambiri komanso kuwonongeka kwa mankhwala, ndikukulitsa kugwiritsa ntchito kwa FKM ndi FFKM.
- Makampani a Chemical: Kusiyanasiyana ndi kuvutikira kwa zinthu za mankhwala kukukulitsa kufunikira kwa zisindikizo zosagwirizana ndi mankhwala, ndikukulitsa kugwiritsa ntchito kwa FKM ndi FFKM.
- Makampani Amagetsi: Kuchepa kwapang'onopang'ono komanso magwiridwe antchito apamwamba a zida zamagetsi zikuchulukitsa kufunikira kwa zida zotsekera zomwe sizingagwirizane ndi kutentha kwambiri komanso dzimbiri lamankhwala, ndikukulitsa kugwiritsa ntchito kwa FKM ndi FFKM.
Mapeto
Rubber wa fluorine (FKM) ndi rabara ya perfluoroether (FFKM), monga oimira mphira wochita bwino kwambiri, ali ndi chiyembekezo chochulukirapo m'magawo osiyanasiyana chifukwa cha kukana kwawo kwamankhwala komanso kukana kutentha kwambiri. Ngakhale FFKM ndiyokwera mtengo, kuchita bwino kwambiri m'malo ovuta kumapatsa mwayi wosasinthika pazinthu zina. Ndikupita patsogolo kwaukadaulo wamafakitale, kufunikira kwa zida zamphira zogwira ntchito kwambiri kukupitilirabe, ndipo chiyembekezo chamsika wa FKM ndi FFKM ndichambiri.
Nthawi yotumiza: Jun-24-2025