Me ka hoʻonui mau ʻana o ke koi ikehu hou, ua manaʻo ʻia e komo hou ka mākeke capacitor kiʻiʻoniʻoni o Kina i kahi wā ulu kiʻekiʻe i nā makahiki e hiki mai ana. ʻO ka polypropylene film, ka mea nui o nā capacitor kiʻiʻoniʻoni, ke hoʻomau nei i ka hoʻonui ʻana i kona hakahaka lako a me ke koi ma muli o ka hoʻonui wikiwiki ʻana o ke koi a me ka hoʻokuʻu lohi ʻana o ka hiki ke hana. E nānā ka ʻatikala o kēia pule i nā mea nui o nā capacitor kiʻiʻoniʻoni - polypropylene film (PP film).

I ka hopena o nā makahiki 1960, ua lilo ka ʻili uila polypropylene i hoʻokahi o nā ʻili uila nui ʻekolu ma muli o kona ʻano uila a me ke kaʻina hana kūikawā a me ka hana kumukūʻai maikaʻi loa, a ua hoʻohana nui ʻia i ka ʻoihana capacitor mana. I ka hoʻomaka ʻana o nā makahiki 1980, ua hoʻomaka mua ka hana ʻana o nā capacitors kiʻi polypropylene metallized ma nā ʻāina i hoʻomohala ʻia ma ʻEulopa a me ʻAmelika, ʻoiai ʻo Kina ke kahua hoʻomohala o nā capacitors kiʻi polypropylene metallized. Ma o ka hoʻolauna ʻana o ka ʻenehana hana capacitor kiʻi polypropylene metallized a me nā lako koʻikoʻi i loaʻa ai iā mākou nā capacitors kiʻi polypropylene metallized ma ke ʻano maoli.

E hoʻomaʻamaʻa kākou i ka hoʻohana ʻana o ka polypropylene film i nā capacitors film a me kekahi hoʻolauna pōkole. No ka papa capacitor film organik nā capacitors film polypropylene, ʻo kona waena he polypropylene film, he ʻano metala ka electrode a me ke ʻano metala ka ʻano, ua kāʻei ʻia ke kumu o ka capacitor me ka epoxy resin a i ʻole i hoʻopaʻa ʻia i loko o ka plastic a me ka hihia metala. ʻO ka capacitor polypropylene i hana ʻia me ka electrode film metala ua kapa ʻia ʻo metallized polypropylene film capacitor, i ʻike nui ʻia ʻo film capacitor. ʻO ka polypropylene film kahi resin thermoplastic i hana ʻia e ka polymerizing propylene. ʻOi aku ka mānoanoa, ʻoi aku ka paʻakikī, a ʻoi aku ka ikaika tensile, a hiki ke hoʻohana ʻia no nā kiʻiʻoniʻoni hale kōmahana, nā ʻeke ukana, a pēlā aku. ʻO ka Polypropylene kahi polymer non-toxic, odorless, tasteless, milky white, high crystalline me ka density o 0.90-0.91g/cm³ wale nō. ʻO ia kekahi o nā ʻano māmā loa o nā plastics āpau i loaʻa. He paʻa loa ia i ka wai, ʻo ka helu omo wai i loko o ka wai he 0.01% wale nō, ʻo ke kaumaha molekala ma kahi o 80,000-150,000.

ʻO ka ʻili polypropylene ka mea nui o nā capacitors kiʻiʻoniʻoni. ʻO ke ʻano hana o ka capacitor kiʻiʻoniʻoni i kapa ʻia ʻo ka ʻili metallized, i hana ʻia ma ka vacuum vaporizing i kahi papa lahilahi o ka metala ma luna o ka ʻili plastik e like me ka electrode. Hiki i kēia ke hōʻemi i ka nui o ka mana o ka ʻāpana capacitor, no laila ʻoi aku ka maʻalahi o ka hana ʻana i ka ʻiliʻoni i nā capacitors liʻiliʻi a kiʻekiʻe. ʻO ka upstream o ka capacitor kiʻiʻoniʻoni e pili ana i ka ʻili kumu, ka foil metala, ka uea, ka ʻōpala waho, a pēlā aku. I waena o lākou, ʻo ka ʻili kumu ka mea maka nui, a ʻo ka ʻokoʻa o ka mea e hōʻike ai i nā capacitors kiʻiʻoniʻoni i ka hana like ʻole. Ma ke ʻano laulā, ua māhele ʻia ka ʻili kumu i polypropylene a me polyester. ʻO ka mānoanoa o ka ʻili kumu, ʻoi aku ka kiʻekiʻe o ka voltage hiki iā ia ke kū, a ʻo ka hope, ʻoi aku ka haʻahaʻa o ka voltage hiki iā ia ke kū. ʻO ka ʻili kumu ka ʻili uila uila, ʻoiai ʻo ka dielectric o nā capacitors kiʻiʻoniʻoni ka mea maka nui loa o upstream, ka mea e hoʻoholo ai i ka hana o nā capacitors kiʻiʻoniʻoni a noho i 60%-70% o ke kumukūʻai mea. Ma ke ʻano o ke ʻano mākeke, ʻoi aku ka maopopo o nā mea hana Kepani ma nā mea maka no nā capacitors kiʻiʻoniʻoni kiʻekiʻe, me Toray, Mitsubishi lāua ʻo DuPont nā mea hoʻolako kiʻiʻoniʻoni kumu kiʻekiʻe loa o ka honua.

ʻO nā kiʻiʻoniʻoni polypropylene uila no nā kaʻa ikehu hou, photovoltaic a me ka mana makani ua hoʻopaʻa nui ʻia ma waena o 2 a me 4 microns, a ua hoʻemi ʻia ka hiki ke hana ma mua o ka hapalua i ka manawa like i hoʻohālikelike ʻia me 6 a 8 microns no nā mīkini hale maʻamau, e hopena ana i ka emi nui ʻana o ka hana holoʻokoʻa a me ka hoʻohuli ʻana o ka lako a me ke koi o ka mākeke. E kaupalena ʻia ka lako o ka kiʻiʻoniʻoni polypropylene uila i nā makahiki e hiki mai ana. I kēia manawa, ʻo nā lako nui o ka kiʻiʻoniʻoni polypropylene uila honua i hana ʻia ma Kelemania, Iapana a me nā ʻāina ʻē aʻe, a ʻo ke kaʻina hana o ka hiki hou he 24 a 40 mau mahina. Eia kekahi, kiʻekiʻe nā koi hana o nā kiʻiʻoniʻoni kaʻa ikehu hou, a he kakaikahi wale nō nā hui e hiki ke hoʻopaʻa i ka hana nui o nā kiʻiʻoniʻoni polypropylene uila ikehu hou, no laila ma ka honua holoʻokoʻa, ʻaʻohe hiki ke hana i ka kiʻiʻoniʻoni polypropylene hou i ka makahiki 2022. Ke kūkākūkā ʻia nei nā hoʻopukapuka kālā ʻē aʻe i nā laina hana. No laila, aia paha kahi hakahaka nui no ka ʻoihana holoʻokoʻa i ka makahiki aʻe.