Niki Cyiza, Kevlar Fibre Cyangwa PE Fibre Mubikoresho?

Icyambere, tanga ikiganiro intangiriro kuri aramid na PE.

Ibikoresho bya fibre ya Aramide Aramid, izwi kandi nka Kevlar (izina ryimiti ni phthalamide) yavutse mu mpera za 1960.Nubwoko bushya bwa fibre yubukorikori buhanitse, ifite ubushyuhe bwinshi, irwanya aside na alkali., Uburemere bworoshye, imbaraga nyinshi nibindi byiza, byakoreshejwe cyane mubikoresho birinda amasasu, ubwubatsi nibikoresho bya elegitoronike nibindi imirima.

Ariko aramid nayo ifite amakosa abiri yica:
1) Bizatesha agaciro mugihe uhuye nimirasire ya ultraviolet;biroroshye hydrolyze, niyo yaba ibitswe ahantu humye, izakurura ubuhehere mu kirere kandi buhoro buhoro hydrolyze.
Kubwibyo, aramid yamasasu yinjizwamo hamwe na kositimu yamasasu ntibikwiriye gukoreshwa igihe kirekire mumashanyarazi akomeye ya ultraviolet nubushuhe, bizagabanya cyane imikorere yabo yo kurinda nubuzima bwa serivisi.Mubyongeyeho, umutekano muke nubuzima bugufi bwa aramid nabwo bugabanya ubundi buryo bwo gukoresha aramid murwego rwamasasu.
Igiciro cya aramide yo mu rwego rwo hejuru nayo iri hejuru ya PE, ishobora kuba 30% kugeza 50%.Kugeza ubu, ibicuruzwa bitagira amasasu ukoresheje aramide byagabanutse buhoro buhoro kandi bitangira gusimburwa n’ibicuruzwa bitagira amasasu.Keretse niba ari mubidukikije bidasanzwe cyangwa bifite ibisabwa byihariye, nkubushyuhe bwo hejuru bwiburasirazuba bwo hagati, birasabwa gukoresha ibikoresho bya PE ibikoresho bitagira amasasu.

1. PE yavuzwe mbere mubikoresho bya fibre ya fibre bivuga mubyukuri UHMW-PE, ikaba ifite uburemere buke cyane bwa polyethylene.Nibikorwa bya fibre ikora cyane byakozwe mu ntangiriro ya za 1980, kandi byitwa isi muri iki gihe hamwe na karuboni fibre na aramide.Ibice bitatu byubuhanga buhanitse.Imifuka ya pulasitike ikoreshwa mubuzima bwacu bwa buri munsi mubyukuri nibicuruzwa bya polyethylene, bifite umutekano muke kandi bigoye cyane kubitesha agaciro, bitera umwanda ukabije wibidukikije.Ariko mubyukuri kubera iyi miterere yarahindutse ibikoresho byiza byo gukora ibirwanisho byumubiri.Byongeye kandi, ifite ibiranga ubushyuhe buke, kurwanya UV, no kurwanya amazi.
Mu rwego rwo kwirinda amasasu yihuta, UHMW-PE fibre irwanya ballisti iri hejuru ya 30% ugereranije na fibre aramide;
Mu rwego rwo kwirinda amasasu yihuta, ubushobozi bwamasasu ya fibre ya UHMW-PE yikubye inshuro 1.5 kugeza kuri 2 ya fibre aramide, PE rero kuri ubu izwi nkibikoresho byujuje ubuziranenge.

Nyamara, UHMW-PE nayo ifite ibitagenda neza: ubushyuhe bwayo bwo hejuru burenze kure ubwa aramid.Gukoresha ubushyuhe bwibicuruzwa bitagira amasasu UHMWPE bigomba kugenzurwa muri 80 ° C (bishobora kuzuza ibisabwa ubushyuhe bwumubiri wumuntu nibikoresho -kurwanya ubushyuhe 55 ° C).Ubushyuhe bumaze kurenga, imikorere yabwo izagabanuka vuba, kandi iyo ubushyuhe bugeze kuri 150 ° C cyangwa hejuru, bizashonga.Ibicuruzwa bitagira amasasu birashobora gukomeza imiterere ihamye kandi ikora neza murwego rwo hejuru rwubushyuhe bwa 200 ℃.Kubwibyo, PE ibicuruzwa bitagira amasasu ntibikwiriye gukoreshwa mubushyuhe bwo hejuru.
Byongeye kandi, kurwanya kunyerera kwa PE ntabwo ari byiza nkibya aramide, kandi ibikoresho bikoresha PE bizahinduka buhoro buhoro iyo bikorewe igitutu gihoraho.Kubwibyo, ibikoresho nkingofero bifite imiterere igoye kandi bigomba kwihanganira igitutu igihe kirekire ntibishobora gukorwa na PE.
Usibye ibyo biranga, igiciro cya PE kiri hasi cyane ugereranije na aramid nkuko byavuzwe mbere.
Muri rusange, PE na aramid bafite ibyiza byabo nibibi.Ariko, irakoreshwa cyane muri iki gihe kugirango ikoreshe PE nkigice cyamasasu.Biracyakenewe guhitamo ibikoresho bitagira amasasu bikwiranye ukurikije uko ibintu bimeze.