Ndikukula kosalekeza kwa kufunikira kwa mphamvu zatsopano, zikuyembekezeka kuti msika waku China waku China ulowanso muzaka zingapo zikubwerazi.Kanema wa polypropylene, zomwe zili pachimake ma capacitor amafilimu, akupitiliza kukulitsa kusiyana kwake komwe amapeza komanso kufunikira kwake chifukwa chakukula kwachangu komanso kutulutsa pang'onopang'ono kwa mphamvu zopanga.Nkhani ya sabata ino ifotokoza za filimu ya capacitors- polypropylene film (PP film).

Chakumapeto kwa zaka za m'ma 1960, filimu yamagetsi ya polypropylene inakhala imodzi mwa mafilimu akuluakulu atatu amagetsi chifukwa cha mawonekedwe ake apadera a magetsi ndi kukonza ndi kugwiritsira ntchito bwino kwambiri, ndipo ankagwiritsidwa ntchito kwambiri pamakampani opanga magetsi.Kumayambiriro kwa zaka za m'ma 1980, kupanga ma capacitors opangidwa ndi zitsulo zazitsulo za polypropylene kunali kutayamba kale m'mayiko otukuka ku Ulaya ndi America, pamene China idakali mu chitukuko cha metallized polypropylene film capacitors.Pokhapokha poyambitsa ukadaulo wopangira ukadaulo wa polypropylene film capacitor ndi zida zazikulu zomwe zidatipangitsa kukhala ndi metallized polypropylene film capacitor kwenikweni.

Tiyeni tidziŵe kugwiritsa ntchito filimu ya polypropylene mu ma capacitor a filimu ndi mafotokozedwe achidule.Polypropylene film capacitors ndi organic film capacitor class, sing'anga yake ndi polypropylene filimu, elekitirodi ili ndi chitsulo chamtundu wamtundu ndi mtundu wa filimu yachitsulo, pachimake capacitor wokutidwa ndi epoxy resin kapena kutsekedwa mu pulasitiki ndi chitsulo.Polypropylene capacitor yopangidwa ndi electrode film film imatchedwa metallized polypropylene film capacitor, yomwe imadziwika kuti filimu capacitor.Filimu ya polypropylene ndi utomoni wa thermoplastic wopangidwa ndi polymerizing propylene.Nthawi zambiri zimakhala zokulirapo, zolimba, komanso zimakhala ndi mphamvu zochulukirapo, ndipo zimatha kugwiritsidwa ntchito ngati mafilimu owonjezera kutentha, matumba onyamula katundu, ndi zina zambiri. 0.90-0.91g/cm³.Ndi imodzi mwamitundu yopepuka kwambiri pamapulasitiki onse omwe alipo.Ndiwokhazikika pamadzi, kuchuluka kwa mayamwidwe m'madzi ndi 0. 01%, molekyulu yolemera pafupifupi 80,000-150,000.

Filimu ya polypropylene ndiye maziko a ma capacitor amafilimu.Njira yopangira filimu ya capacitor imatchedwa filimu ya metallized, yomwe imapangidwa ndi vacuum vaporizing zitsulo zopyapyala pafilimu yapulasitiki monga electrode.Izi zikhoza kuchepetsa kuchuluka kwa mphamvu ya capacitor unit, kotero filimuyo imakhala yosavuta kupanga ma capacitor ang'onoang'ono, apamwamba kwambiri.Kumtunda kwa filimu capacitor makamaka kumaphatikizapo filimu yoyambira, zitsulo zojambulazo, waya, ma CD akunja, ndi zina zotero. Pakati pawo, filimu yoyambira ndizomwe zimakhala zopangira, ndipo kusiyana kwa zinthu kumapangitsa kuti ma capacitors awonetsere ntchito zosiyanasiyana.Mafilimu oyambira nthawi zambiri amagawidwa kukhala polypropylene ndi polyester.Pamene filimu yoyambira imakhala yowonjezereka, mphamvu yowonjezera imatha kupirira, ndipo mosiyana, imakhala yotsika kwambiri mphamvu yomwe imatha kupirira.Base filimu ndi magetsi kalasi pakompyuta filimu, monga dielectric wa filimu capacitors ndi zofunika kwambiri kumtunda yaiwisi yaiwisi, amene amatsimikizira ntchito capacitors filimu ndi occupies 60% -70% ya zinthu mtengo.Pankhani ya msika, opanga mafilimu aku Japan ali ndi chitsogozo chowonekera bwino pazida zopangira mafilimu apamwamba kwambiri, pomwe Toray, Mitsubishi ndi DuPont ndi omwe amapereka mafilimu apamwamba kwambiri padziko lonse lapansi.

Mafilimu amagetsi a polypropylene a magalimoto atsopano amphamvu, mphamvu ya photovoltaic ndi mphepo imakhala makamaka pakati pa 2 ndi 4 microns, ndipo mphamvu yopangira yachepetsedwa ndi theka la nthawi yomweyi poyerekeza ndi ma microns 6 mpaka 8 pa zipangizo wamba zapakhomo. pakutsika kwakukulu kwa kuchuluka kwa kupanga komanso kusinthika kwa msika ndi kufunikira kwa zinthu.Kupereka kwa filimu yamagetsi ya polypropylene kudzakhala kochepa m'zaka zikubwerazi.Pakali pano, zida zazikulu za filimu yapadziko lonse yamagetsi ya polypropylene imapangidwa ku Germany, Japan ndi mayiko ena, ndipo ntchito yomanga mphamvu yatsopano ndi miyezi 24 mpaka 40.Kuonjezera apo, zofunikira za mafilimu oyendetsa magalimoto atsopano ndi apamwamba, ndipo makampani ochepa okha ndi omwe amatha kukhazikika kupanga mafilimu atsopano a mphamvu zamagetsi a polypropylene, kotero padziko lonse lapansi, sipadzakhalanso mphamvu zatsopano zopangira mafilimu a polypropylene mu 2022. Ndalama zina mu mizere yopanga ikukambidwa.Chifukwa chake, pakhoza kukhala kusiyana kwakukulu kwamakampani onse chaka chamawa.