Txhais
UHMWPE yog lub ntsiab lus ntawm Ultra High Molecular Nyhav PolyEthylene
UHMWPE yog linear, low-pressure, Ziegler-type-catalyst, polyethylene cob.
Cov lus pom
UHMWPE muaj qhov hnyav-qhov nruab nrab molecular hnyav, kwv yees li kaum npaug ntawm qhov hnyav molecular, High density polyethylene (HDPE) resins.
Vim hais tias ntawm nws cov ultra siab molecular ntom, UHMWPE muaj ob qho tib si loj tshaj plaws tiv taus lub zog ntawm cov yas.
Qhov tseeb, 25mm (1 ") tuab npuaj tuaj yeem nres 0.38 caliber rab yaj phom slug ntawm 150 hli (6 ").
UHMWPE yog qhov yooj yim linear keeb kwm yav dhau (PE) polymers nrog cov khoom tshwj xeeb.
UHMWPE muaj qhov cuam tshuam zoo tshaj plaws ntawm lwm yam engineering polymers nrog rau kev puas tsuaj zoo thiab hnav tsis kam, biocompatibility, suab nrov tsis kam, coeficient tsis tshua muaj kev sib txhuam, tshuaj lom neeg zoo thiab hluav taws xob rwb thaiv tsev.
Ua ke nrog kev puas tsuaj thiab tawv, qhov coefficient ntawm kev sib txhuam ntawm UHMWPE yields tus kheej-lubricating, tsis-stick nto.
Static thiab dynamic coefficients qis dua cov hlau thiab cov ntaub ntawv yas feem ntau.
UHMWPE tuaj yeem ua raws li cov khoom siv biomaterial, tshwj xeeb tshaj yog nyob rau hauv tag nrho cov sib koom ua ke hloov cov khoom xws li piv txwv li hip prosthesis lossis ib qho kev phais hloov pauv.
Cheebtsam ua los ntawm UHMWPE yog raug rau complex loading lub sij hawm ntev.
UHMWPE muaj viscosity siab tshaj qhov kub ntawm melting.
Yog li, nws yog ib qho nyuaj rau kev ua cov ntshiab UHMWPE los ntawm kev txhaj tshuaj molding, tshuab moulding, los yog pa ntsia hlau extrusion.
Txawm li cas los xij, txo cov viscosity los ntawm kev sib ntxiv ntawm cov saw luv oligomers tuaj yeem cuam tshuam cov khoom ntawm cov khoom.
Kev ua haujlwm tsis zoo txwv tsis pub siv ntau yam uas twb muaj lawm ntawm UHMWPE.
Txhawm rau pab txhawb nws cov txheej txheem rau kev siv, UHMWPE tau ua ke nrog polyethylene (PE), polypropylene (PP), polyacrylate (PA), polycarbonate (PC), polyaniline (PANI), thiab lwm yam ntaub ntawv los txhim kho cov khoom ntawm cov polymers.
High density polyethylene (HDPE) tau siv dav hauv kev lag luam ntawm tus account ntawm kev ua tau zoo, cov khoom xav tau thiab tus nqi qis.
UHMWPE / HDPE sib xyaw tau ua rau muaj kev nyiam ntau yam raws li kev cog lus ntawm tib neeg kev kho cov khoom siv vim tias qhov sib xyaw no muaj kev nkag siab zoo dua li UHMWPE zoo.
Tsis tas li ntawd, HDPE kuj yog biocompatible polymer thiab muaj HDPE tuaj yeem txhim kho kev ua haujlwm ntawm UHMWPE sib xyaw.
Ntau yam khoom ntawm UHMWPE / HDPE sib xyaw tau kawm, xws li kev ua haujlwm, rheological zog, thermal oxidative zog thiab cuam tshuam tus cwj pwm.
Yog tias UHMWPE tsis paub ntau npaum li cas sab nraum lub voj voog ntawm cov kws tshaj lij, nws cov ntawv thov tau paub zoo hauv kev lag luam, biomedical thiab kev tiv thaiv sectors.
Post lub sij hawm: Jun-20-2017