Polyvinylidene fluoride orpolyvinylidene difluoride (PVDF) ndi thermoplastic thermoplastic fluoropolymer.Imasungunuka mosavuta ndipo imatha kupangidwa kukhala magawo ndi jakisoni ndi kuponderezana.Zimaphatikiza mphamvu zamakina apamwamba ndi processability wabwino.Zithunzi za PVDFnthawi zambiri amagwiritsidwa ntchito pazida zopangira mankhwala monga mapampu, mavavu, mapaipi, machubu ndi zolumikizira.Njira yake yamakina ndi (C2H2F2)n.PVDF ndi pulasitiki yapadera yomwe imagwiritsidwa ntchito popanga zinthu zomwe zimafuna kuyeretsedwa kwambiri, komanso kukana zosungunulira, ma asidi ndi ma hydrocarbon.PVDF ili ndi kachulukidwe kochepa 1.78 g/cm3 poyerekeza ndi ma fluoropolymers ena, monga polytetrafluoroethylene.
Imapezeka m'mapaipi, mapepala, machubu, mafilimu, mbale ndi insulator yamawaya apamwamba.Itha kubayidwa, kuumbidwa kapena kuwotcherera ndipo imagwiritsidwa ntchito kwambiri m'mafakitale amankhwala, semiconductor, azachipatala ndi chitetezo, komansomabatire a lithiamu-ion.Imapezekanso ngati azolumikizidwa thovu lotsekedwa, yomwe imagwiritsidwa ntchito mochulukira pazaulendo wandege ndi zamlengalenga, komanso ngati chosindikizira cha 3D chachilendo.Itha kugwiritsidwanso ntchito polumikizana mobwerezabwereza ndi zakudya, chifukwa ndizogwirizana ndi FDA komanso zopanda poizoni pansi pa kutentha kwake.
M'zaka zaposachedwa, pakhala chidwi chachikulu cha polymer Polyvinylidene Fluoride (PVDF).Chidwi chomwe adalandira chifukwa chimawonetsa mphamvu za piezoelectric poyerekeza ndi ma polima ena aliwonse ogulitsa.Polima imagwiritsidwa ntchito kwambiri pazaukadaulo wapamwamba kwambiri monga zida zamagetsi, zamagetsi ndi zamagetsi, zapadera komanso zokhudzana ndi mphamvu.Koma, nchiyani chimapangitsa PVDF kukhala pulasitiki yogwira ntchito kwambiri m'magawo angapo?Werengani kuti mudziwe zambiri.
PVDF (PVF2 kapena Polyvinylidene fluoride kapena polyvinylidene difluoride) ndi semi-crystalline, high purity thermoplastic fluoropolymer.Ndi kutentha kwa ntchito mpaka 150 ° C, PVDF imawonetsa kuphatikiza kwabwino kwa zinthu monga:
- Kukana kwapadera kwamankhwala
- Mkulu wamakina mphamvu
- Piezoelectric ndi pyroelectric katundu
- Komanso processability wabwino
Kusasungunuka kwake kofunikira kwambiri komanso mphamvu zamagetsi zimachokera ku polarity yamagulu amtundu wa CH2 ndi CF2 pa tcheni cha polima.
PVDF imasungunuka mosavuta ndipo imatha kupangidwa m'zigawo zina ndi jekeseni ndi kuumba.Chotsatira chake, chimagwiritsidwa ntchito kawirikawiri mu zipangizo zopangira mankhwala monga mapampu, ma valve, mapaipi, machubu ndi zopangira;masensa ndi actuators etc.
Ili ndi ntchito zambiri zamagetsi, makamaka ngati zida zojambulira chingwe cha plenum-voted chomwe chimagwiritsidwa ntchito pazida zamawu ndi makanema ndi ma alarm.Kutentha kwa moto wochepa komanso kutulutsa utsi kwa PVDF ndichinthu chofunikira kwambiri pakugwiritsa ntchito izi.
PVDF ikuyamba kuvomerezedwa ngati chomangira cha cathodes ndi anode mu mabatire a lithiamu-ion, komanso ngati cholekanitsa batri mu machitidwe a polima a lithiamu-ion.
Ntchito zomwe zikubwera za PVDF zikuphatikiza ma cell cell membranes, ndi zida zamkati mwa ndege ndi zida zamagetsi zamagetsi.
Chifukwa cha kuphatikiza kwake kopambana kwa katundu ndi processability, PVDF yakhala buku lalikulu kwambiri la fluoropolymers pambuyo pa PTFE.
PVDF imapezeka pamalonda pamitundu yambiri yosungunula komanso zowonjezera zosiyanasiyana kuti zithandizire kukonza kapena kutsiriza ntchito.
Zathu makina obwezeretsanso pulasitiki titha kugwiritsa ntchito wononga wapadera ndi mbiya pokonza ndi recycle PVDF.The Screw ife kutenga C267 aloyi ndi mbiya utenga Ni aloyi.The recycling ndi pelletizing dongosolo adzagwiritsa ntchitostrand pelletizing kukonza zinthu.
Zikomo,
Ayi
Email: aileen.he@puruien.com
Foni: 0086 15602292676 (whatsapp)
Nthawi yotumiza: Mar-02-2023
