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1.Aramid fiber midziyo

Zita rakazara re aramid faibha inonhuwirira polyamide faibha.Iyo mutsara wepolymer inoumbwa nemapoka anonhuhwirira uye mapoka emamide.Iyo ine yakanakisa mechanic zvivakwa, yakagadzikana makemikari chimiro, yakanakira michina zvivakwa, Ultra-yakakwirira simba uye yakakwirira modulus., kupikisa kwekushisa kwepamusoro, asidhi uye alkali kuramba, huremu huremu, kupfeka kusagadzikana uye zvimwe zvakanaka zvinhu.Yakave ichishandiswa zvakanyanya muminda senge bulletproof midziyo yekudzivirira, aerospace, kuvaka uye zvemagetsi zvigadzirwa.

Nekudaro, aramid fiber inewo maviri makuru akashata

(1) Aramid faibha ine urombo UV kuramba.Ultraviolet mwaranzi (chiedza chezuva) chinokonzeresa kushatisa kwearamid fibers.Nokudaro, chidziviriro chekudzivirira chinodiwa, chinogona kunge chiri chepamusoro kana chidimbu chezvinyorwa, semuenzaniso, tambo dzearamid dzinowanzovharirwa mumucheka wekudzivirira.

(2) Aramid fiber ine yakakwira hygroscopicity (kusvika ku6% yehuremu hwayo), saka aramid fiber inoumbwa zvinhu zvinoda kuchengetedzwa zvakanaka, senge topcoat inowanzoshandiswa kuderedza hygroscopicity.Pamusoro pezvo, kushandiswa kwemamwe marudzi earamid kunoderedza kunyura kwemvura yemusanganiswa kana yaiswa mumvura, seKevlar 149 kana Armos.

2.PE fiber midziyo

PE inoreva chaizvo UHMW-PE, inova yakanyanya-yakakwira molecular uremu polyethylene.Iyo yakakwira-inoshanda organic fiber yakagadzirwa mukutanga 1980s.Pamwe chete nekabhoni fiber uye aramid, inozivikanwa sematatu makuru e-high-tech fibers munyika nhasi.Iine ultra-high kugadzikana uye yakaoma zvakanyanya kudzikisira, zvichikonzera kusvibiswa kwakakomba kwezvakatipoteredza.Asi ndizvo chaizvo nekuda kwehunhu uhu hunova chinhu chakanakira kugadzira nhumbi dzokurwa dzemuviri.Uye zvakare, inoshingirira kune yakaderera tembiricha, UV mwenje, uye mvura.

Mukutaura kwekudzivirira pasi-speed bullets, bulletproof performance ye PE fiber inenge 30% yakakwirira kudarika yearamid;maererano nekudzivirira kuputika kwepamusoro-soro, kushanda kwePE fiber ndeye 1.5 kusvika ku2 nguva yearamid.Zvinogona kutaurwa kuti zvikanganiso zvearamid fiber zvave zvakanakira PE fiber, uye zvakanakira aramid fiber zvave nani pane PE fiber.Naizvozvo, inzira isingadzivisiki yePE fiber kutsiva aramid mumunda wekudzivirira.

Ehe, PE fiber inewo zvikanganiso.Iyo tembiricha yekudzivirira nhanho yakaderera zvakanyanya kune aramid fiber.Iyo tembiricha yekushandisa yePE fiber kuchengetedza zvigadzirwa iri mukati me70 ° C (iyo inogona kusangana nezvinodiwa zvemuviri wemunhu nemidziyo, kureva, tembiricha yekudzivirira inodiwa ye55 ° C).Kupfuura tembiricha iyi, kuita kunoderera nekukurumidza.Kana kutonhora kunopfuura 150 ° C, PE fiber ichanyunguduka, uye aramid fiber Fiber inogona kuramba ichichengetedza zvinhu zvakanaka zvekudzivirira munzvimbo ye200 ° C, uye hainyauka kana kuora pa500 ° C;paunosangana nekupisa kwepamusoro pamusoro pe900 ° C, ichave yakananga carbonized kuti iite chigadziko chekudzivirira kupisa.Izvi hazviwanikwe muPE fiber inodzivirira zvigadzirwa uye zvave zvakasarudzika zvakanakira zvearamid zvigadzirwa.