Bitewe n’uko isoko ry’ingufu nshya rikomeje kwiyongera, biteganijwe ko isoko ry’ingufu za firime mu Bushinwa rizongera kwinjira mu gihe cy’iterambere rikomeye mu myaka mike iri imbere. Ingufu za firime ya polypropylene, ibikoresho by’ingenzi bya firime, zikomeje kwagura icyuho cy’ibicuruzwa n’ibikenewe bitewe n’ubwiyongere bwihuse bw’ibikenewe no gusohora buhoro ubushobozi bwo kubitunganya. Ingingo y’iki cyumweru izareba ibikoresho by’ingenzi bya firime za polypropylene (firime ya PP).

Mu mpera z'imyaka ya 1960, filime y'amashanyarazi ya polypropylene yabaye imwe muri filime eshatu zikomeye z'amashanyarazi bitewe n'imiterere yayo yihariye y'amashanyarazi n'uburyo itunganywa ndetse n'ibiciro byayo byiza cyane, kandi yakoreshejwe cyane mu nganda zikora capacitor y'amashanyarazi. Mu ntangiriro z'imyaka ya 1980, gukora capacitor za filime za polypropylene zari zaratangiye mu bihugu byateye imbere mu Burayi na Amerika, mu gihe Ubushinwa bwari bukiri mu cyiciro cyo guteza imbere capacitor za filime za polypropylene zari zarakozwe mu byuma. Ni mu gutangiza ikoranabuhanga ryo gukora capacitor za filime za polypropylene zari zarakozwe mu byuma n'ibikoresho by'ingenzi, nibwo twabonye capacitor za filime za polypropylene zari zarakozwe mu byuma mu buryo nyabwo.

Reka tumenye ikoreshwa rya firime ya polypropylene muri capacitors za firime n'intangiriro ngufi. Capacitors za firime ya polypropylene zikomoka ku bwoko bwa capacitors za firime za organic, uburyo bwazo ni firime ya polypropylene, electrode ifite ubwoko bw'icyuma gifata n'ubwoko bwa firime y'icyuma, igice cy'imbere cya capacitor gipfunyitsemo epoxy resin cyangwa gipfundikiwe muri pulasitiki no mu gasanduku k'icyuma. Capacitors za polypropylene zikozwe muri firime y'icyuma yitwa capacitors za firime za polypropylene za metallized, izwi cyane nka capacitors za firime. Filimi ya polypropylene ni resin ya thermoplastic ikorwa na polimerizing propylene. Akenshi iba ikomeye, ikomeye, kandi ifite imbaraga nyinshi zo gukurura, kandi ishobora gukoreshwa muri firime za greenhouse, imifuka itwara imizigo, nibindi. Polypropylene ni polimeri idahumanya, idafite impumuro, idafite uburyohe, umweru usa n'amata, ifite ubucucike bwa 0.90-0.91g/cm³ gusa. Ni imwe mu moko yoroheje cyane ya pulasitiki zose zihari. Irahindagurika cyane ku mazi, igipimo cyo kwinjiza amazi mu mazi ni 0.01% gusa, uburemere bwa molekile buri hagati ya 80.000-150.000.

Filimi ya polipropiline ni ingenzi mu bikoresho bya capacitors za filime. Uburyo bwo gukora capacitors za filime bwitwa filime y’icyuma, ikorwa hakoreshejwe vacuum vaporized urwego rwo hasi rw’icyuma kuri filime ya pulasitiki nk’electrode. Ibi bishobora kugabanya ingano y’ubushobozi bwa capacitors, bityo filime yoroshye gukora capacitors ntoya kandi zifite ubushobozi bwinshi. Filime yo hejuru ya capacitors za filime igizwe ahanini na filime y’ibanze, foil y’icyuma, insinga, ipaki yo hanze, nibindi. Muri byo, filime y’ibanze ni igikoresho cy’ibanze, kandi itandukaniro ry’ibikoresho rizatuma capacitors za filime zigaragaza imikorere itandukanye. Filime y’ibanze muri rusange igabanyijemo polypropylene na polyester. Uko filime y’ibanze iba nini, niko voltage ishobora kwihanganira iba nyinshi, naho voltage ishobora kwihanganira iba nto. Filime y’ibanze ni filime y’ikoranabuhanga yo mu rwego rw’amashanyarazi, kuko dielectric ya capacitors za filime ari yo fatizo y’ingenzi cyane, igena imikorere ya capacitors za filime kandi igatwara 60%-70% by’igiciro cy’ibikoresho. Ku bijyanye n'imiterere y'isoko, inganda zo mu Buyapani zifite ubushobozi bwo gutanga ibikoresho fatizo bya capacitors za firime zo mu rwego rwo hejuru, aho Toray, Mitsubishi na DuPont ari zo zitanga firime nziza ku isi.

Filimi za polypropylene zikoreshwa n'amashanyarazi ku binyabiziga bishya bikoresha ingufu, amashanyarazi ya photovoltaic n'umuyaga ahanini ziba hagati ya mikoroni 2 na 4, kandi ubushobozi bwo gukora bwagabanutseho kimwe cya kabiri mu gihe kimwe ugereranije na mikoroni 6 kugeza kuri 8 zikoreshwa mu bikoresho bisanzwe byo mu rugo, bigatuma umusaruro wose ugabanuka cyane ndetse n'igabanuka ry'isoko n'ibikenewe. Itangwa rya filime ya polypropylene zikoreshwa n'amashanyarazi rizaba rike mu myaka iri imbere. Kuri ubu, ibikoresho by'ingenzi bya filime ya polypropylene ikoreshwa n'amashanyarazi ku isi bikorerwa mu Budage, mu Buyapani no mu bindi bihugu, kandi urwego rw'ubushobozi bushya ni amezi 24 kugeza kuri 40. Byongeye kandi, ibisabwa mu mikorere ya filime nshya zikoreshwa n'amashanyarazi ni byinshi, kandi ni amasosiyete make gusa ashobora kugabanya umusaruro wa filime nshya zikoreshwa n'amashanyarazi, bityo ku isi yose, nta bushobozi bushya bwo gukora filime ya polypropylene buzabaho mu 2022. Andi mashoramari mu mishinga yo gukora arimo kuganirwaho. Kubwibyo, hashobora kubaho icyuho kinini cy'ubushobozi ku nganda zose umwaka utaha.