Qeexid
UHMWPE waa soo gaabinta Miisaanka Ultra High Molecular PolyEthylene
UHMWPE waa toosan, cadaadis hooseeya, nooca Ziegler-catalyst, resin polyetylen.
Faallo
UHMWPE waxay leedahay miisaan molecular celcelis ahaan miisaankiisu aad u culus yahay, ku dhawaad toban jeer ka miisaankiisu sarreeyo, resins cufnaanta sare ee polyetylen (HDPE).
Sababtoo ah cufnaanta molecular ee aadka u sarreeya, UHMWPE waxay leedahay labadaba caabbinta ugu sarreysa iyo awoodda saameynta ugu sareysa ee caag kasta.
Dhab ahaantii, 25mm (1″) dharbaaxo qaro weyn waxay joojin kartaa 0.38 bastoolad caag ah 150 mm (6″).
UHMWPE waa asalka toosan ee fudud (PE) polymers oo leh sifooyin gaar ah.
UHMWPE waxay leedahay awoodda saamaynta ugu sareysa ee polymers-yada kale ee injineernimada oo ay weheliso abrasion heer sare ah iyo xidhashada iska caabbinta, biocompatibility, iska caabinta buuqa, isku-xirnaanta aad u hooseeya, iska caabbinta kiimikada wanaagsan iyo caabbinta korantada.
Marka lagu daro caabbinta nabarka iyo adayga, isugeynta hoose ee is jiid jiidka UHMWPE waxay soo saartaa is-saliid, oogada aan dhegta lahayn.
Iskuduwayaasha istaatigga ah iyo kuwa firfircoon ayaa si aad ah uga hooseeya birta iyo inta badan alaabta caagagga ah.
UHMWPE waxay u dhaqmi kartaa sidii biomaterial, gaar ahaan sida wadarta qaybaha beddelka wadajirka ah sida tusaale ahaan sanaaci miskaha ama qalliin kasta oo beddelka wadajirka ah.
Walxaha laga sameeyay UHMWPE waxay ku xiran yihiin rar adag oo waqti dheer ah.
UHMWPE waxay leedahay viscosity sare xitaa heer kulka dhalaalka.
Sidaa darteed, way adag tahay in lagu farsameeyo UHMWPE saafi ah iyadoo la isticmaalayo qaabaynta duritaanka, qaabaynta afuufidda, ama furka furka caadiga ah.
Si kastaba ha noqotee, hoos u dhigista viscosity iyadoo lagu daro oligomers silsilad gaaban waxay saameyn kartaa sifooyinka alaabta.
Hawlkarnimada liidata waxay xaddidaysaa codsiyada badan ee jira ee UHMWPE.
Si loo fududeeyo habaynteeda codsiyada, UHMWPE waxaa lagu daraa polyetylen (PE), polypropylene (PP), polyacrylate (PA), polycarbonate (PC), polyaniline (PANI), iyo agabyo kale si loo hagaajiyo sifooyinka polymers-ka.
Cufnaanta sare ee polyetylen (HDPE) ayaa si weyn loogu isticmaalay warshadaha iyada oo loo eegayo habsocodka wanaagsan, guryaha la rabo iyo qiimo jaban.
Isku dhafka UHMWPE/HDPE ayaa soo jiitay fiiro gaar ah sida sheyga dayactirka wadajirka ah ee bini'aadamka sababtoo ah isku dhafkan ayaa leh iska caabin ka wanaagsan UHMWPE
Intaa waxaa dheer, HDPE sidoo kale waa polymer-ka noole ku habboon iyo joogitaanka HDPE waxay hagaajin kartaa habka isku dhafka UHMWPE.
Sifooyin badan oo isku dhafka UHMWPE/HDPE ayaa la darsay, sida waxqabadka habaynta, sifooyinka rheological, guryaha oksaydhka kuleyliyaha iyo dabeecada saamaynta.
Haddii UHMWPE aan si aad ah looga yaqaan meel ka baxsan goobada takhasuska leh, codsiyadeedu waxay caan ku yihiin warshadaha, biomedical iyo qaybaha ilaalinta.
Waqtiga boostada: Jun-20-2017