Taba ea pele, fa sehlooho selelekela se sekhutšoane sa aramid le PE.
Thepa ea fiber ea Aramid Aramid, eo hape e tsejoang e le Kevlar (lebitso la lik'hemik'hale ke phthalamide) e hlahile ho elella bofelong ba lilemo tsa bo-1960.Ke mofuta o mocha oa fiber e phahameng ea theknoloji e phahameng, e nang le khanyetso e phahameng ea mocheso, acid le alkali resistance., Boima bo bobebe, matla a maholo le melemo e meng, e 'nile ea sebelisoa haholo ka thepa ea tšireletso ea likulo, thepa ea kaho le ea elektronike le tse ling. masimo.
Empa aramid e boetse e na le mefokolo e 'meli e bolaeang:
1) E tla nyenyefatsa ha e kopana le mahlaseli a ultraviolet;ho bonolo ho hydrolyze, leha e bolokoa sebakeng se omeletseng, e tla monya mongobo moeeng ebe butle-butle e na le hydrolyze.
Ka hona, li-aramid bulletproof tse kenngoa le li-bulletproof vests ha li tšoanelehe bakeng sa tšebeliso ea nako e telele libakeng tse matla tsa ultraviolet le tse mongobo, tse tla fokotsa haholo ts'ebetso ea bona ea tšireletso le bophelo ba tšebeletso.Ho phaella moo, botsitso bo futsanehileng le bophelo bo khutšoanyane ba aramid bo boetse bo fokotsa ts'ebeliso e eketsehileng ea aramid tšimong ea bulletproof.
Theko ea aramid ea boleng bo holimo le eona e phahame ho feta ea PE, e ka bang 30% ho isa ho 50% ho feta.Hona joale, lihlahisoa tse thibelang likulo tse sebelisang aramid li fokotsehile butle-butle 'me li qalile ho nkeloa sebaka ke lihlahisoa tsa PE.Ntle le haeba e le sebakeng se khethehileng kapa se na le litlhoko tse khethehileng, tse kang mocheso o phahameng oa Middle East, ho kgothaletswa ho sebelisa thepa ea PE ea lisebelisoa tse thibelang likulo.
1. PE e boletsoeng pele ho thepa ea fiber ea PE e hlile e bua ka UHMW-PE, e leng polyethylene e boima ba molek'hule e phahameng haholo.Ke fiber e sebetsang e phahameng ea organic e ntlafalitsoeng mathoasong a lilemo tsa bo-1980, 'me kajeno e bitsoa lefatše hammoho le fiber ea carbon le aramid.Likhoele tse tharo tsa theknoloji e phahameng.Mekotla ea polasetiki e sebelisoang bophelong ba rona ba letsatsi le letsatsi ha e le hantle ke lihlahisoa tsa polyethylene, tse nang le botsitso bo phahameng haholo 'me ho thata haholo ho li senya, tse bakang tšilafalo e tebileng ea tikoloho.Empa ke hantle ka lebaka la tšobotsi ena e fetohileng thepa e loketseng ho etsa lihlomo tsa 'mele.Ntle le moo, e na le litšobotsi tsa ho hanyetsa mocheso o tlase, ho hanyetsa UV, le ho hanyetsa metsi.
Mabapi le ts'ireletso khahlanong le likulo tse lebelo le tlase, khanyetso ea fiber ea UHMW-PE e ka ba 30% e phahameng ho feta ea fiber ea aramid;
Mabapi le ts'ireletso khahlanong le likulo tse lebelo le phahameng, bokhoni ba bulletproof ba UHMW-PE fiber ke 1.5 ho makhetlo a 2 ho feta aramid fiber, kahoo PE hajoale e tsejoa e le thepa ea boleng bo phahameng ka ho fetisisa ea likulo.
Leha ho le joalo, UHMW-PE e boetse e na le mefokolo e itseng: khanyetso ea eona e phahameng ea mocheso e tlase haholo ho feta ea aramid.Thempereichara ea tšebeliso ea lihlahisoa tsa bulletproof tsa UHMWPE e hloka ho laoloa ka hare ho 80 ° C (e ka finyellang litlhoko tsa mocheso oa 'mele oa motho le thepa - ho hanyetsa mocheso oa 55 ° C).Hang ha mocheso ona o feta, ts'ebetso ea eona e tla theoha ka potlako, 'me ha mocheso o fihla ho 150 ° C kapa ho feta, e tla qhibiliha.Lihlahisoa tsa aramid bulletproof li ntse li ka boloka sebopeho se tsitsitseng le ts'ebetso e ntle ea ts'ireletso sebakeng sa mocheso o phahameng oa 200 ℃.Ka hona, lihlahisoa tsa PE bulletproof ha lia lokela ho sebelisoa libakeng tse phahameng tsa mocheso.
Ntle le moo, khanyetso ea PE ha e ntle joalo ka ea aramid, mme lisebelisoa tse sebelisang PE li tla holofala butle ha li le tlas'a khatello e tsoelang pele.Ka hona, lisebelisoa tse kang lihelmete tse nang le libopeho tse rarahaneng le tse hlokang ho mamella khatello ka nako e telele li ke ke tsa etsoa ka PE.
Ntle le litšobotsi tsena, theko ea PE e tlase haholo ho feta ea aramid joalokaha ho boletsoe pejana.
Ka kakaretso, PE le aramid li na le melemo le mathata a tsona.Leha ho le joalo, e sebelisoa haholo matsatsing ana ho sebelisa PE joalo ka lera le thibelang likulo.Ho ntse ho hlokahala hore u khethe lisebelisoa tse thibelang likulo tse u tšoanelang ho latela boemo ba hau ba 'nete.
Nako ea poso: Aug-20-2021
