UHMWPE, inozivikanwawo seyakakwirira-yakasimba-yakakwirira-modulus polyethylene, pari zvino ndiyo imwe yemhando yepamusoro-soro yepasi.Nekuda kwehuchenjeri hwayo hwakakwana senge corrosion resistance, kupfeka kuramba uye kudzikira density, parizvino inoshandiswa mune zvekudzivirira zvechiuto, zvechiuto zvemichina, midziyo yemuchadenga uye mamwe mauto.
UHMWPE, inozivikanwawo seyakakwirira-yakasimba-yakakwirira-modulus polyethylene, pari zvino ndiyo imwe yemhando yepamusoro-soro yepasi.Nekuda kwehuchenjeri hwayo hwakakwana senge corrosion resistance, kupfeka kuramba uye kudzikira density, parizvino inoshandiswa mune zvekudzivirira zvechiuto, zvechiuto zvemichina, midziyo yemuchadenga uye mamwe mauto.Kukudziridzwa kwepamusoro-inoshanda fiber ndiyo hwaro hwezvombo zvehondo yenyika, uye zvinhu zvepamberi zvinogona kutungamira kune tekinoroji yemauto epamusoro, iyo yave hwaro hwakakosha hwekuvaka nyika ine simba yemazuva ano, uye inotora chinzvimbo chakasimba munda wezvinhu zvehondo pasi rose.
- Zvivakwa zveUHMWPE fiber
UHMWPE faibha ine yakanakisa yakazara zvivakwa, hukama hwayo hudiki, inogona kuyangarara pamusoro pemvura.UyeUHMWPE faibhandiyo faibha yakasimba kudarika dzimwe dzose munyika pari zvino.Kana ichienzaniswa nesimbi, UHMWPE faibha yakasimba zvakapetwa kagumi pane simbi yemhando yepamusoro.Pamusoro pezvo, UHMWPE faibha zvakare ine simba rekudzivirira kusimba, makemikari kuramba, kusagadzika uye zvimwe zvivakwa, kuita kwakazara, UHMWPE faibha muminda yakawanda yakakosha muChina inoita basa rakakosha.
1.1 Yakanakisa michina zvivakwa
Kana ichienzaniswa nemamwe mafiibhi epamusoro-soro, UHMWPE faibha density ndeyechipiri kune yakajairwa PE fiber uye polypropylene faibha, uye ndiyo yakakwana fiber zvinhu ine diki density pakati pezvinhu zvisingapindi bara.Inogona kuderedza huremu hwezvinhu uye kuwana huremu huremu mhedzisiro paunenge uchiona zvirinani bulletproof kuita.
Kuenzaniswa nezvimwe zvivakwa, simba rekusimba reUHMWPE rinongori rechipiri kune rePBO uye polyaryl ester fiber, uye ingori 0.1 yakasiyana neiyo polyaryl ester fiber.Zvinogona kuoneka kuti UHMWPE ine yakanakisa tensile simba.
Kana ichienzaniswa nemamwe mafiber, iyo yekutanga modulus inongova yechipiri kune PBO uye kabhoni fiber, iyo inoratidza kuti iyo fiber ine yakaringana kupikisa kukuvadza kukakavara uye haina kukonzeresa deformation.Iyo imhando yehunhu faibha ine Ultra-yakakwirira chaiyo simba uye yakananga modulus, iyo inoita basa rakakosha mune bulletproof zvinhu.
1.2 Kushanda kwemagetsi ekudzivirira
UHMWPE fiber reflectance radar wave phenomenon ishoma kwazvo, ine yakakwirira conduction kunyatsoita, inosimudzira dielectric inogara yezvinhu zvinoumbwa.Kunyangwe iyo dielectric inogara uye kurasikirwa kukosha kwe polyethylene kuri kushoma pakati pezvimwe zvinhu, UHMWPE faibha ine mashandiro ayo echinyakare polyethylene faibha isingasviki, uye ine mhedzisiro iri nani pane zvinhu zvakajairika, saka ndiyo inofarirwa zvinhu radar radome, ine high quality uye chiedza chekuita.
1. 3 Kuramba kwemamiriro ekunze uye kusapfeka
UHMWPE faibha ine yakanakisa kuramba kwemamiriro ekunze uye inogona kuchengetedza yekutanga kuita kwepamusoro kusachinja mushure menguva yakareba yekuvhenekera uye nharaunda yakaoma.Panguva imwecheteyo, UHMWPE faibha ine yakakwirira kupfeka kuramba uye kukotama kuneta kuramba kupfuura aramid faibha mune yakakwirira kuita zvinhu, saka kupfeka kuramba kwefiber iyi kuri nani pane mamwe mafivha epamusoro ekuita.Nekuda kweiyo yakakwirira kupfeka kuramba uye nyore kugadzirisa kuita, ine yakanaka application tarisiro mundima yeindasitiri.
1. 4 Kemikari corrosion resistance
Chimiro chemukati cheUHMWPE fiber chakanyanya kusimba.Izvo chaizvo nekuda kweiyo yakakwira crystallinity uye kutaridzika kweiyo molecular chain mukati mefiber iyo fiber ine yakasimba kemikari inertia.Naizvozvo, pasi peiyo asidhi uye yepasi mamiriro kana yakakwirira uye yakaderera tembiricha mamiriro, iyo fiber inogona kuchengetedza kuita kwayo kwepakutanga kusachinjika kwenguva yakareba, uye ichiri kuchinjika uye kutamba kukosha kwayo munzvimbo ine hutsinye.
1. 5 Kuzvizora zvinhu
UHMWPE zvinhu zvichienzaniswa nezvimwe zvinhu zveinjiniya, UHMWPE zvinhu zvine yakaderera friction factor, yakaderera friction factor inoita kuti fiber pachayo ive nani kuzvigadzika kuita, ndiyo yakanakisa zvinhu mupurasitiki zvinhu pasi pemamiriro ekushaya lubricant, saka UHMWPE zvinhu zvinoshandiswa zvakanyanya. muinjiniya, ine kukosha kwakanyanya kwekushandisa.UHMWPE fiber inoshandiswa mukushanda kwemuchina, kana ichienzaniswa neyechinyakare simbi nendarira pasi pekushanda kwemafuta zviri nani.Naizvozvo, kana ichienzaniswa neyakajairwa zvinhu, UHMWPE faibha haingochengetedze chete mutengo wezvinhu, asi zvakare inovimbisa yakanakisa mashandiro ekuita, saka ine kukosha kwekushandisa kwepamusoro.
2. Kugadzirira nzira yeUHMWPE fiber
2.1 Gel kuruka nzira
Kune nzira dzakawanda dzekugadzirira kushanda kwepamusoro UHMWPE fiber, asi nekuda kwechikonzero chekunyungudutsa pachako, kugadzirira kweUHMWPE fiber haigone kuwanikwa.Gel spinning ndiyo yakanyanya kunaka nzira.Gel kutenderera nzira yakasiyana neyakajairwa mhinduro kutenderera kana kunyorova kutenderera, kazhinji kushandisa yakakwira molecular uremu mapolymer seyakagadzirwa, yakagadzirwa nehafu dilute mhinduro seinotenderera dope, inoshanduka mamorekuru ketani mhinduro kune tangles mune semi dilute mhinduro, uyezve kutenderera, crystallization, high tensile stretch chain, mushure mekutora kurapwa kune dzimwe nguva kutambanudza kwekushisa, iyo inogadzirwa nesimba guru uye yakakwirira modulus fibers.Iyo gel inoruka nzira ine anotevera maitiro ekutanga: (1) Ultra-yakakwirira molecular uremu polymer inoshandiswa seyakagadzirwa zvinhu; (2) shandisa semi-dilute mhinduro sekutenderera stock;(3) hyperthermal stretching yakaitwa, uye tensile ratio yaive yakakura kudarika makumi matatu.
2.2 Plasticizing inonyungudutsa nzira yekutenderera
Melt spinning inogadzirwa nepolymer yakanyungudika nekunyunguduka kutenderera uye extruding.Plasticized melt spinning iri pahwaro hwekunyunguduka kutenderera, kuwedzera huwandu hwakakodzera hwekunyunguduka kune polymer inonyunguduka yekutenderera, kuburikidza netwin screw yakasanganiswa solvent, uye yozoburitswa, yakanyudzwa muajenti yekubvisa, uyezve kudzokororwa kutambanudza kunogona kupedzisira kwawana simba rakawanda. uye yakakwirira modulus polyethylene fiber.
2.3 High pressure solid state extrusion nzira
Nheyo yekugadzira extrusion ndeyekuti granular solid solvent inowedzerwa kune extruder, iyo mbiya ine yakasimba solvent inopisa kusvika pakunyunguduka tembiricha, kuitira kuti chinhu chakasimba chinyungudutswe, iyo yakanyungudutswa inotakurwa ichiendeswa kumusoro wemuchina ne chimiro chakamisikidzwa, uye ipapo mushure mekutonhora nekuumbwa, chigadzirwa chekupedzisira chinosimbiswa.High kudzvinyirirwa yakasimba extrusion nzira iri pahwaro extrusion kuumba yakakwirira pressure kunyunguduka, kuumba solvent, ipapo kuburikidza jeti gomba, uye ipapo yakakwirira tensile, uye pakupedzisira kuwana yakakwirira molecular uremu polyethylene.
2.4 Surface crystallization nzira
Nekuda kwekunonoka kukura kwefibrous crystal, nzira iyi haiwanzo shandiswa mukugadzirira kweUHMWPE fiber.
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Nguva yekutumira: Oct-14-2018