Njengoko imfuno entsha yamandla isanda ngokuqhubekayo, kulindeleke ukuba imakethi ye-capacitor yefilimu yaseTshayina ibuyele kwixesha lokukhula okuphezulu kwakhona kwiminyaka embalwa ezayo. Ifilimu ye-polypropylene, eyona nto iphambili kwii-capacitor zefilimu, iyaqhubeka nokwandisa umsantsa wayo wokubonelela kunye nemfuno ngenxa yokwanda ngokukhawuleza kwemfuno kunye nokukhululwa kancinci kwamandla emveliso. Inqaku lale veki liza kujonga izinto ezingundoqo zee-capacitor zefilimu- ifilimu ye-polypropylene (ifilimu ye-PP).

Ngasekupheleni kweminyaka yoo-1960, ifilimu yombane ye-polypropylene yaba yenye yeefilimu ezintathu eziphambili zombane ngenxa yeempawu zayo zombane kunye nokucubungula kunye nokusebenza kakuhle kweendleko, kwaye yayisetyenziswa kakhulu kwishishini le-power capacitor. Ekuqaleni kweminyaka yoo-1980, ukuveliswa kwee-capacitor zefilimu ze-polypropylene ezenziwe ngesinyithi kwakusele kuqalile kumazwe aphuhlileyo eYurophu naseMelika, ngelixa iTshayina yayisekwinqanaba lokuphuhliswa kwee-capacitor zefilimu ze-polypropylene ezenziwe ngesinyithi. Kuphela ngokwaziswa kwetekhnoloji yokwenziwa kwee-capacitor zefilimu ze-polypropylene ezenziwe ngesinyithi kunye nezixhobo eziphambili apho saba nee-capacitor zefilimu ze-polypropylene ezenziwe ngesinyithi ngengqiqo yokwenyani.

Masiqhelane nokusetyenziswa kwefilimu ye-polypropylene kwii-capacitors zefilimu kunye nentshayelelo emfutshane. Ii-capacitors zefilimu ze-polypropylene zezodidi lwe-organic film capacitor, indlela yazo ephakathi yifilimu ye-polypropylene, i-electrode inohlobo lwe-metal host kunye nohlobo lwefilimu yesinyithi, umongo we-capacitor usongelwe nge-epoxy resin okanye ifakwe kwiplastiki nakwi-metal case. I-polypropylene capacitor eyenziwe nge-electrode yefilimu yesinyithi ibizwa ngokuba yi-metalized polypropylene film capacitor, eyaziwa ngokuba yi-film capacitor. Ifilimu ye-polypropylene yi-thermoplastic resin eyenziwe yi-polymerizing propylene. Ihlala ityebile, iqinile, kwaye inamandla aphezulu okuxinana, kwaye ingasetyenziselwa iifilimu ze-greenhouse, iingxowa ezithwala umthwalo, njl. I-Polypropylene yi-polymer engenatyhefu, engenavumba, engenancasa, emhlophe njengobisi, ene-crystalline eninzi enobunzima be-0.90-0.91g/cm³ kuphela. Yenye yezona ntlobo zikhaphukhaphu kuzo zonke iiplastiki ezikhoyo. Izinzile kakhulu emanzini, izinga lokufunxwa kwamanzi emanzini yi-0.01% kuphela, ubunzima beemolekyuli bumalunga ne-80,000-150,000.

Ifilimu yePolypropylene yeyona nto iphambili kwii-capacitors zefilimu. Indlela yokuvelisa i-capacitor yefilimu ibizwa ngokuba yifilimu yesinyithi, eyenziwa ngokufutha i-vacuum umaleko omncinci wesinyithi kwifilimu yeplastiki njenge-electrode. Oku kunokunciphisa umthamo weyunithi ye-capacitor, ukuze ifilimu kube lula ukuyenza ii-capacitors ezincinci, ezinomthamo ophezulu. I-upstream ye-capacitor yefilimu ibandakanya ikakhulu i-base film, i-metal foil, ucingo, ukupakisha kwangaphandle, njl. Phakathi kwazo, i-base film yeyona nto iphambili, kwaye umahluko wezinto uya kwenza ii-capacitors zefilimu zibonakalise ukusebenza okwahlukileyo. Ifilimu yesiseko ngokubanzi yahlulwe yaba yi-polypropylene kunye ne-polyester. Okukhona i-base film ityebile, kokukhona i-voltage iphezulu, kwaye ngokuchaseneyo, i-voltage iphantsi. Ifilimu yesiseko yifilimu ye-elektroniki yomgangatho wombane, njengoko i-dielectric yee-capacitors zefilimu yeyona nto ibalulekileyo ekumgangatho ophezulu, emisela ukusebenza kwee-capacitors zefilimu kwaye ithatha i-60%-70% yexabiso lezinto. Ngokwendlela yokuthengisa, abavelisi baseJapan bakhokela ngokucacileyo kwizixhobo ezisetyenziswa kwii-capacitor zeefilimu eziphezulu, apho iToray, iMitsubishi kunye neDuPont zingabathengisi beefilimu abakumgangatho ophezulu kwihlabathi liphela.

Iifilimu ze-polypropylene zombane zezithuthi ezintsha zamandla, i-photovoltaic kunye namandla omoya zigxile kakhulu phakathi kwe-2 kunye ne-4 microns, kwaye amandla emveliso ancitshiswe ngaphezulu kwesiqingatha kwixesha elifanayo xa kuthelekiswa ne-6 ukuya kwi-8 microns zezixhobo eziqhelekileyo zasekhaya, nto leyo ekhokelela ekwehleni okukhulu kwemveliso iyonke kunye nokuguqulwa kobonelelo lwemarike kunye nemfuno. Ubonelelo lwefilimu ye-polypropylene yombane luya kunqunyulwa kwiminyaka ezayo. Okwangoku, izixhobo eziphambili zefilimu ye-polypropylene yombane yehlabathi ziveliswa eJamani, eJapan nakwamanye amazwe, kwaye umjikelo wokwakha amandla amatsha ziinyanga ezingama-24 ukuya kuma-40. Ukongeza, iimfuno zokusebenza kweefilimu ezintsha zezithuthi zamandla ziphezulu, kwaye ziinkampani ezimbalwa kuphela ezikwaziyo ukuzinzisa imveliso enkulu yeefilimu ezintsha ze-polypropylene zombane, ngoko ke kwihlabathi liphela, akuyi kubakho mandla matsha emveliso yeefilimu ze-polypropylene ngo-2022. Olunye utyalo-mali kwimigca yemveliso luyaxoxwa. Ke ngoko, kunokubakho umsantsa omkhulu wamandla kulo lonke ishishini kunyaka ozayo.