Njengoba kuqhubeka ukwanda kwesidingo samandla amasha, kulindeleke ukuthi imakethe yama-capacitor efilimu yaseShayina izophinde ingene esikhathini sokukhula okuphezulu eminyakeni embalwa ezayo. Ifilimu ye-polypropylene, okuyizinto eziyinhloko zama-capacitor efilimu, iyaqhubeka nokwandisa igebe layo lokuhlinzekwa kanye nesidingo ngenxa yokwanda okusheshayo kwesidingo kanye nokukhishwa kancane kwamandla okukhiqiza. Isihloko saleli sonto sizobheka izinto eziyinhloko zama-capacitor efilimu - ifilimu ye-polypropylene (ifilimu ye-PP).

Ngasekupheleni kweminyaka yama-1960, ifilimu kagesi ye-polypropylene yaba enye yamafilimu amathathu amakhulu kagesi ngenxa yezici zayo ezihlukile zikagesi nezokucubungula kanye nokusebenza kahle kwezindleko, futhi yayisetshenziswa kabanzi embonini ye-power capacitor. Ekuqaleni kweminyaka yama-1980, ukukhiqizwa kwama-capacitor efilimu ye-polypropylene enensimbi kwase kuqalile kakade emazweni athuthukile eYurophu naseMelika, kuyilapho iShayina yayisesesigabeni sokuthuthukiswa kwama-capacitor efilimu ye-polypropylene enensimbi. Kungokwethulwa kobuchwepheshe bokukhiqiza be-polypropylene enensimbi kanye nemishini ebalulekile lapho saba nama-capacitor efilimu ye-polypropylene enensimbi ngomqondo wangempela.

Ake sijwayelane nokusetshenziswa kwefilimu ye-polypropylene kuma-capacitor efilimu kanye nokwethulwa okufushane. Ama-capacitor efilimu ye-polypropylene angaphansi kwesigaba se-capacitor yefilimu ye-organic, indlela yayo yokusebenza yifilimu ye-polypropylene, i-electrode inohlobo lwe-host yensimbi kanye nohlobo lwefilimu yensimbi, umongo we-capacitor ugoqwe nge-epoxy resin noma uvalwe ngepulasitiki kanye nekesi lensimbi. I-capacitor ye-polypropylene eyenziwe nge-electrode yefilimu yensimbi ibizwa ngokuthi i-metallized polypropylene film capacitor, eyaziwa kakhulu ngokuthi i-film capacitor. Ifilimu ye-polypropylene iyi-resin ye-thermoplastic eyenziwe yi-polymerizing propylene. Ngokuvamile ijiyile, iqinile, futhi inamandla aphezulu okubamba, futhi ingasetshenziswa kumafilimu okushisa, izikhwama ezithwala umthwalo, njll. I-Polypropylene iyi-polymer engenabo ubuthi, engenaphunga, engenambitheki, emhlophe njengobisi, enekristalu kakhulu enobukhulu obungu-0.90-0.91g/cm³ kuphela. Ingenye yezinhlobo ezilula kakhulu kuzo zonke ipulasitiki ezitholakalayo. Izinzile kakhulu emanzini, izinga lokumuncwa kwamanzi emanzini lingu-0.01% kuphela, isisindo sama-molecule singaba ngu-80,000-150,000.

Ifilimu ye-polypropylene iyinto eyinhloko yama-capacitor efilimu. Indlela yokukhiqiza i-capacitor yefilimu ibizwa ngokuthi ifilimu yensimbi, eyenziwa ngokufutha ungqimba oluncane lwensimbi efilimu yepulasitiki njenge-electrode. Lokhu kunganciphisa umthamo weyunithi ye-capacitor, ngakho-ke ifilimu kulula ukuyenza ama-capacitor amancane, anomthamo ophezulu. Ingxenye ephezulu ye-capacitor yefilimu ifaka kakhulu ifilimu eyisisekelo, i-foil yensimbi, ucingo, ukupakishwa kwangaphandle, njll. Phakathi kwazo, ifilimu eyisisekelo iyinto eluhlaza eyinhloko, futhi umehluko wezinto uzokwenza ama-capacitor efilimu abonise ukusebenza okuhlukile. Ifilimu eyisisekelo ngokuvamile ihlukaniswe nge-polypropylene ne-polyester. Uma ifilimu eyisisekelo ikhulu, i-voltage ephezulu engayimelana nayo, futhi okuphambene nalokho, i-voltage ephansi engayimelana nayo. Ifilimu eyisisekelo ifilimu ye-elekthronikhi yezinga likagesi, njengoba i-dielectric yama-capacitor efilimu iyinto eluhlaza ebaluleke kakhulu engenhla, enquma ukusebenza kwama-capacitor efilimu futhi ithatha u-60%-70% wezindleko zezinto. Ngokuphathelene nephethini yemakethe, abakhiqizi baseJapan banokuhola okucacile ezintweni zokusetshenziswa zama-capacitor amafilimu aphezulu, kanti iToray, iMitsubishi kanye neDuPont zingabahlinzeki bamafilimu abasezingeni eliphezulu emhlabeni.

Amafilimu e-polypropylene kagesi ezimoto ezintsha zamandla, i-photovoltaic kanye namandla omoya agxile kakhulu phakathi kwama-micron angu-2 no-4, futhi amandla okukhiqiza ancishisiwe ngaphezu kwengxenye esikhathini esifanayo uma kuqhathaniswa nama-micron angu-6 kuya kwangu-8 emishini yasekhaya evamile, okuholele ekwehleni okukhulu kokukhiqizwa okuphelele kanye nokuguqulwa kokunikezwa kwemakethe kanye nesidingo. Ukuhlinzekwa kwefilimu ye-polypropylene kagesi kuzonqunyelwa eminyakeni ezayo. Njengamanje, imishini eyinhloko yefilimu ye-polypropylene kagesi yomhlaba wonke ikhiqizwa eJalimane, eJapane nakwamanye amazwe, kanti umjikelezo wokwakha amandla amasha uyizinyanga ezingu-24 kuya kwezingu-40. Ngaphezu kwalokho, izidingo zokusebenza zamafilimu ezimoto ezintsha zamandla ziphezulu, futhi izinkampani ezimbalwa kuphela ezikwazi ukuzinzisa ukukhiqizwa okukhulu kwamafilimu e-polypropylene kagesi kagesi, ngakho-ke emhlabeni jikelele, ngeke kube khona amandla okukhiqiza amafilimu e-polypropylene amasha ngo-2022. Okunye ukutshalwa kwezimali emigqeni yokukhiqiza kuyaxoxiswana. Ngakho-ke, kungase kube negebe elikhulu lamandla kulo lonke imboni ngonyaka ozayo.