Ma'anarsa
UHMWPE shine takaitaccen bayanin Ultra High Molecular Weight Polyethylene
UHMWPE linzamin kwamfuta ne, ƙananan matsa lamba, nau'in Ziegler-catalyst, resin polyethylene.
Sharhi
UHMWPE yana da matsakaicin nauyi-matsakaicin nauyin kwayoyin halitta, kusan sau goma na babban nauyin kwayoyin halitta, Resins polyethylene High density (HDPE).
Saboda girman girmansa na kwayoyin halitta, UHMWPE yana da duka mafi girman juriyar abrasion da ƙarfin tasiri na kowane filastik.
Haƙiƙa, mari mai kauri 25mm (1″) na iya dakatar da slug ɗin bindiga mai caliber 0.38 a 150 mm (6″).
UHMWPE ita ce polymers mai sauƙi mai sauƙi (PE) tare da kaddarorin na musamman.
UHMWPE yana da ƙarfin tasiri mafi girma a tsakanin sauran injiniyoyin injiniya tare da kyakkyawan abrasion da juriya, haɓakaccen yanayi, juriya na amo, ƙananan ƙarancin juriya, kyakkyawan juriya na sinadarai da juriya na lantarki.
Haɗe tare da juriya da taurin kai, ƙarancin ƙima na gogayya na UHMWPE yana haifar da mai mai mai kai da kai, saman mara tsayawa.
Matsakaicin ƙididdiga masu ƙarfi da ƙarfi sun fi ƙasa da ƙarfe da yawancin kayan filastik.
UHMWPE na iya aiki azaman abin halitta, musamman kamar a cikin jimlar abubuwan maye gurbin haɗin gwiwa kamar misali prosthesis na hip ko kowane aikin maye gurbin haɗin gwiwa.
Abubuwan da aka yi daga UHMWPE suna ƙarƙashin haɗaɗɗen lodi na tsawon lokaci.
UHMWPE yana da babban danko ko da sama da yanayin narkewa.
Don haka, yana da wahala a aiwatar da tsantsar UHMWPE ta hanyar gyare-gyaren allura, gyare-gyaren busa, ko fitar da dunƙule na al'ada.
Koyaya, rage danko ta ƙara gajeriyar sarkar oligomers na iya shafar kaddarorin samfuran.
Ƙarfin aiki mara kyau yana ƙuntata yawancin aikace-aikacen da ake da su na UHMWPE.
Don sauƙaƙe sarrafa shi don aikace-aikacen, UHMWPE an haɗa shi da polyethylene (PE), polypropylene (PP), polyacrylate (PA), polycarbonate (PC), polyaniline (PANI), da sauran kayan don haɓaka kaddarorin irin waɗannan polymers.
Babban yawa polyethylene (HDPE) an yi amfani da ko'ina a cikin masana'antu saboda kyakkyawan tsari, kaddarorin da ake so da ƙarancin farashi.
Haɗin UHMWPE/HDPE ya jawo hankali sosai azaman kayan gyaran haɗin gwiwar ɗan adam mai ban sha'awa saboda irin wannan haɗuwa yana da mafi kyawun juriya fiye da UHMWPE mai kyau.
Bugu da ƙari, HDPE kuma polymer ce mai jituwa kuma kasancewar HDPE na iya haɓaka aikin haɗakarwar UHMWPE.
An yi nazarin yawancin kaddarorin haɗin UHMWPE/HDPE, kamar aikin sarrafawa, kaddarorin rheological, kaddarorin oxidative na thermal da halayen tasiri.
Idan UHMWPE ba a san shi sosai a wajen da'irar ƙwararru ba, aikace-aikacen sa sananne ne a cikin masana'antu, ilimin halittu da sassan kariya.
Lokacin aikawa: Yuni-20-2017