Tsanangudzo
UHMWPE ndiyo acronym ye Ultra High Molecular Weight PolyEthylene
UHMWPE mutsara, yakaderera-kudzvanywa, Ziegler-mhando-catalyst, polyethylene resin.
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UHMWPE ine huremu hwakanyanyisa-avhareji yehuremu hwemamorekuru, huremu hunosvika gumi hwehuremu hwepamusoro, High density polyethylene (HDPE) resin.
Nekuda kweiyo yakanyanya kukwira mamorekuru density, UHMWPE ine ese ari maviri epamusoro abrasion kuramba uye yakanyanya simba simba rechero plastiki.
Asi izvo, 25mm (1 ″) gobvu mbama inogona kumisa 0.38 caliber pistol slug pa 150 mm (6 ″).
UHMWPE ndiyo yakapusa mutsara kumashure (PE) mapolymer ane akasiyana zvivakwa.
UHMWPE ine simba repamusoro-soro pakati pemamwe mainjiniya mapolymer pamwe neakanakisa abrasion uye kupfeka kuramba, biocompatibility, ruzha kuramba, yakaderera kwazvo coeficient yekupokana, yakanaka makemikari kuramba uye magetsi ekudzivirira kudzivirira.
Yakasanganiswa neabrasion kuramba uye kuoma, iyo yakaderera coefficient yekukwesha kweUHMWPE inopa inozvizora, isina-tsvimbo.
Static uye dynamic coefficients yakanyanya kuderera pane simbi uye akawanda epurasitiki zvinhu.
UHMWPE inogona kuita sebiomaterial, kunyanya muzvikamu zvinotsiva zvakabatana semuenzaniso wehudyu prosthesis kana chero majoini ekuvhiya.
Zvikamu zvakagadzirwa kubva kuUHMWPE zvinoiswa pasi pekurodha kwakaoma kwenguva yakareba.
UHMWPE ine high viscosity kunyange pamusoro pekunyunguduka kwekushisa.
Nekudaro, zvinonetsa kugadzira UHMWPE yakachena nekuumba jekiseni, kuvhuvhuta kuumba, kana kujairika screw extrusion.
Nekudaro, kuderedza viscosity nekuwedzera kweiyo mafupi ketani oligomers kunogona kukanganisa zvimiro zvezvigadzirwa.
Kusashanda zvakanaka kunoganhurira mashandisirwo akakura aripo eUHMWPE.
Kuti ifambise kugadzirisa kwayo zvikumbiro, UHMWPE inosanganiswa ne polyethylene (PE), polypropylene (PP), polyacrylate (PA), polycarbonate (PC), polyaniline (PANI), uye zvimwe zvinhu zvekuvandudza zvimiro zvemapolymer akadaro.
Yakakwira density polyethylene (HDPE) yakashandiswa zvakanyanya muindasitiri nekuda kwekuita zvakanaka, zvivakwa zvinodiwa uye mutengo wakaderera.
Musanganiswa weUHMWPE/HDPE wakakwevera kutarisisa sechinhu chinovimbisa chekugadzirisa majoini emunhu nekuti musanganiswa wakadaro une kuramba kuri nani kukwira pane kutsvinda UHMWPE.
Uyezve, HDPE zvakare iri biocompatible polymer uye kuvapo kweHDPE kunogona kuvandudza mashandiro emusanganiswa weUHMWPE.
Zvizhinji zvivakwa zveUHMWPE/HDPE musanganiswa zvakadzidzwa, senge kugadzirisa kuita, rheological zvivakwa, thermal oxidative zvimiro uye maitiro ekuita.
Kana UHMWPE isingazivikanwe zvakanyanya kunze kwedenderedzwa renyanzvi, mashandisirwo ayo anozivikanwa muindasitiri, biomedical uye chengetedzo zvikamu.
Nguva yekutumira: Jun-20-2017