There is no ul file number available for quadrant stock shapes. Manufacturer honeywell, dsm, various other suppliers. Ultra high molecular weight polyethylene uhmwpe is a semicrystalline polymer that has been used for over four decades as a bearing surface in total joint replacements. Ultra high molecular weight polyethylene fiber from dsm. Pdf the applications of synchrotron radiation sr in medical imaging have become of great use. Uhmwpe is now the material of choice for joint replacements, and is increasingly being used in fibers for sutures.
We compare the physi cal, mechanical, and wear properties of. Uhmw liners uhmw sheet is often used for lining chutes and hoppers to protect metal surfaces and to keep solid materials like sand, wood chips, or coal moving smoothly. Molecular chain stretch is a multiaxial failure criterion for. Physical properties and biocompatibility of uhmwpederived. Uhmwpe plastic what is uhmw, typical properties, key characteristics, applications keywords. Results are presented concerning the obtaining and properties of ultra high molecular weight polyethylene uhmwpe as the material withstanding severe operation conditions, unlike usual polymer modifications. Uhmwpe data sheet ultra high molecular weight polyethylene author. Polystone uhmwpe sheet has a minimal molecular weight. Ultra high molecular weight polyethylene uhmwpe sheet and rod products are manufactured from the semicrystalline polyethylene pe family. Most of the figures given for the mechanical properties are average values of tests run on dry test specimens machined out of rods 4060 mm when available, else out of plate 1020mm. A study of the mechanical properties of ultra high. Pdf current trends in mechanical property enhancement of. Chemfilm uhmw pe film properties performance tests are run using standard test procedures.
Ultra high molecular weight polyethylene chemical compound uhmwpe uhmwpe is a subset of the thermoplastic polyethylene. Also known as highmodulus polyethylene, hmpe, it has extremely long chains, with a molecular mass usually between 3. Uhmw is a tough, fda compliant plastic with low friction. Therefore, there is an increasing demand for characterising the tensile properties of individual yarn in detail, in order tocorrelate the yarn properties with impact resistance of fabric and numerically simulate the impact response of fabric. Uhmwpe biomaterials handbook, third edition, describes the science, development, properties, and application of ultrahigh molecular weight polyethylene uhmwpe used in artificial joints. We compare the physical, mechanical, and wear properties of crossfire with that of conventional. Ultrahigh molecular weight polyethylene in total joint replacement.
Some of this information is set by the person who created the document, and some is generated automatically in acrobat, you can change any information that can be set by the document creator, unless the file. It has extremely long chains resulting in a very tough material, with high impact strength. The values presented are typical values and should not be used for specification purposes. Try our adobe online pdf converter tools to create free. Typical properties of uhmw natural astm test method natural physical and mechanical properties density d792. Ultra high molecular weight polyethylene properties uhmw mechanical properties property astm test units metric u. Tivar natural virgin uhmwpe professional plastics. Tivar natural virgin uhmwpe physical properties metric english comments specific gravity 0. The purpose of this study is to evaluate the effects of high temperature annealing above the melt on the properties of as received uhmwpe material and methods. This industrial grade material is also moisture, stain and odor resistant, and is fda approved to be used in the food processing industry. Pdf physical properties and biocompatibility of uhmwpederived. Ultrahigh molecular weight polyethylene material safety data sheet v. Study on properties and application of uhmwpe wearresisting composite material.
The information contained herein is believed to be. Ultra high molecular we i g h t po l ye t h ylene uhmwpe. May 04, 2014 physical properties, such as wettability, surface energy, irspectroscopy, roughness, optical microscopy, microhardness measurements of uhmwpe samples were studied before and after sr. The most uptodate information on the properties of uhmwpe. Comparison of the properties of annealed crosslinked.
There will be several different approaches taken in order to. The prevalence of the use of radiation chemistry for sterilization and improvement in wear behavior of ultra high molecular weight polyethylene uhmwpe has led to a suite of test techniques used to quantify dose yields, side products, and final morphological and mechanical properties. The natural properties of a ultrahigh or high molecular weight lowpressure polyethylene are what ensures an ideal material flow for the linings of bunkers, silos. Most other mechanical, therm a l, and physical properties remain essentially constant throughout the molecular weight range of uhmwpe. A definitive quality guarantee is given in our generalconditions of sales. When you view a pdf, you can get information about it, such as the title, the fonts used, and security settings. Fdas guidance documents, including this guidance, do not establish.
Some of this information is set by the person who created the document, and some is generated automatically in acrobat, you can change any information that can be set by the document creator, unless the file has been saved with security settings that prevent changes. Study of the mechanical properties of ultrahigh molecular. Study on properties and application of uhmwpe wear. This approach will be illustrated with test data on crossfire stryker howmedica osteonics, mahwah, nj, an annealed, highlycrosslinked uhmwpe developed specifically for total hip replacements. Processed by compression moulding or extrusion, our fl340 rod and sheet is annealed before machining to remove the internal stresses and as uhmwpe. They show very high tensile strength and stiffness and low density. A study of the mechanical properties of ultra high molecular.
Analytical techniques for assessing the effects of. It is more than 5 times abrasion resistant than stainless steel and has selflubricating properties. Leadacid battery separators gur uhmwpe is used as a binder for separators in. Publishers pdf, also known as version of record includes final page. Create and compress pdf files online for free adobe. Uhmwpe fibers are an excellent choice as a reinforcing fiber material in composite materials due to their outstanding mechanical properties, e. Mechanical, physical and thermal properties properties condition standard unit unit colour. Unless otherwise stated, these values represent averages taken from injection moulding samples. When we got the materials, the dimension of our material is incorrect. Analytical techniques for assessing the effects of radiation. Ultra strong polyethylene fibers can be made by gelspinning of ultra high molecular weight polyethylene uhmwpe. The applications of synchrotron radiation sr in medical imaging have become of great use, particularly in angiography, bronchography, mammography, computed tomography, and xray. We compare the physical, mechanical, and wear properties.
Uhmwpe offers its unique set of properties to address different application needs. Uhmw pe ultra high molecular weight polyethylene is an extremely tough and abrasion resistant thermoplastic that is used for applications that require durability andor abrasive wear resistance. North america led the global ultra high molecular weight polyethylene uhmwpe market in the recent past and is expected to expand at a cagr of over 10. The information contained herein is believed to be reliable, but no representations, guarantees or warranties of any kind are made as. Healthhazarddata carcinogen ntpprogram carcinogen iarcprogram no no symptomsofexposure. From medical, to high tech or food industries, gur uhmwpe offers its unique set of properties to address different application needs. By studying the structure of the rope, a formula relating the youngs. The dose effect for uhmwpe is mainly formation of free. Uhmwpe is used in the manufacture of pvc vinyl windows and doors, as it can endure the heat required to soften the pvcbased materials and is used as a formchamber filler for the various pvc shape profiles in order for those materials to be bent or shaped around a template. F i g u r es 3 and 4 show the re l a t i o n s h i p between notched impact strength and temp e r a t u r e. Molecular chain stretch is a multiaxial failure criterion for conventional and highly crosslinked uhmwpe j.
Ultrahighmolecularweight polyethylene uhmwpe, uhmw is a subset of the thermoplastic polyethylene. It was found that the breaking strength and the elongation. Uhmw parts easy to fabricate, uhmw is also used for packaging, conveyor, and food processing machinery parts including star wheels, idler sprockets, and underchain wear strips. From chemical resistance to surface slip properties or a pressed plate, membrane or fiber, gur uhmwpe has proven itself as a truly unique and adaptable material. Effect of surface modifications on the properties of uhmwpe fibres. Therefore our objective is to study the properties of ultra high molecular weight polyethylene in order gain a better understanding of wear. Polyslick uhmw sheet exhibits the properties of excellent impact strength, abrasion resistance, low coefficient of friction, as well as very good chemical resistance.
With very low coefficient of friction, this material is best used in applications where standard virgin uhmw. Uhmwpe retained its properties in humid conditions, which can occur in difference parts of the country and across seasonal changes. The first uhmwpe fibers were commercialized in the late 1970s. Ultra high molecular weight polyethylene uhmwpe market size. Growing geriatric population coupled with increasing joint replacement surgeries has played a vital role in driving growth in u. On the other hand, the axial and transverse compression strength is low. Uhmwpe sheets are used for lining bulk storage hoppers where lowfriction, antistick and abrasionresistant properties solve feed and wear problems. Their use has become widespread at the hip but has been limited in total knee replacements due to concerns over the adequacy of mechanical properties.
Uhmw material safety data sheet ultrahigh molecular weight. Polystone uhmwpe sheet has a minimal molecular weight of 9 million, which has a positive impact on material performance in an abrasive environment. Convert microsoft word, excel, powerpoint, and jpg files to pdf in just a few clicks. Pdf ultrahigh molecular weight polyethylene is used as the key bearing material for use in artificial joints, but the endurance of these. It was demonstrated that modifying uhmwpe via introducing ultra fine particles of inorganic materials. Uhmpe is an outstanding bearing material with exceptional sliding properties and remains tough even at low temperatures.
Uhmwpe makes it the material of choice for a very broad range of applications. By studying the structure of the rope, a formula relating the youngs modulus and twist angle was developed. Uses, properties, quotes or ask a plastics expert at curbell. The mechanical properties of the polymer are dependent on both its crystalline and amorphous phases. Uhmwpeultrahighmolecularweight polyethylene film no.
For each property being compared, the top bar is hmwpe and the bottom bar is uhmwpe. Rusheng deng, anmin huang, zhiyong zhu, wending jiang, yin liu. Material characteristics of conventional uhmwpe should conform to. The relationship between a growth of uhmwpe surface hydrophilicity after sr and surface colonization by stromal cells was studied in vitro. A statistical analysis of the distribution of the tensile strength. Applications include wear strips, chute liners, star wheels, fabricated parts.
Enhancement of wetting and mechanical properties of. There are 8 material properties with values for both materials. From chemical resistance to surface slip properties or a pressed plate, membrane or fiber, gur uhmwpe has. Uhmwpeultrahigh molecularweight polyethylene film no. Therefore our objective is to study the properties of ultra high. Some of these techniques have become standardized through astm or iso committee evaluation, while others are still undergoing test scrutiny. The mechanical properties and wear properties of uhmwpe are of interest with respect to the in vivo performance of uhmwpe. Fairclough1 1 department of mechanical engineering, university of sheffield, sheffield s3 7hq, uk. Pdf polyethylene maufacturing and its properties abdul. The mechanical properties and wear properties of uhmwpe are of interest with respect to the in vivo performance of uhmwpe joint replacement components. Mechanical properties of gelspun, partly drawn, bimodal uhmw pe. Physical properties unit test method test value density of the homogenously pressed material average molecular weight melt index mfi 190 15 gcm. Statistical analysis of the strength of ultraoriented ultrahigh. Physical properties and biocompatibility of uhmwpederived materials modified by synchrotron radiation.
Weight of utec results in excellent mechanical properties such as high abrasion resistance, impact strength and low coefficient of. The material has excellent chemical properties as well as good sliding properties. Spectra medical grade is an ultrahigh strength, ultralightweight polyethylene fiber manufactured through a patented gel spinning process the first of its kind. Uhmwpe data sheet ultra high molecular weight polyethylene. There is a paradigm on the uhmwpe endusers market which says that the properties of such a material can be directly correlated to its molecular weight mw. Reducing the polymer concentration reduces the number of entanglements, and fibres with better properties. Properties with values for just one material 11, in this case are not shown. Thus, we asked the supplier, they said that the air conditioners temperature effect the dimension. Material data sheet uhmw pe uhmw pe white fda general uhmw pe ultra high molecular weight polyethylene, also known as pe, is a thermoplastic polymer in white translucent colour. Ultrahighmolecularweight polyethylene uhmwpe fibres, carbon fibres and aramid fibres are three highperformance fibres used in the world. Ultra high molecular weight polyethylene fiber from dsm dyneema uhmwpe fiber combines excellent mechanical properties with low density, resulting in high performanceonweight basis.
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