010 and 0. It is commonly employed in scenarios where its exceptional wear resistance and minimal coefficient of. Coefficient of friction: D1894: 0. 25 µm, the coefficient of friction statistically significant decreases when the surface texture machined by milling compared to that by turning in both cases of the applied loads of 4 and 16 N; however, with the UHMWPE roughness of 2. 7 MPa. Its biological stability, high rates of strength, wear, and creep resistance, and low friction coefficient all contribute to it being used [ 116 ]. 28 0. 35 TYPICAL PROPERTIES OF ACETAL Values may vary according to brand name. UHMW also replaces metal in many applications. It has a slightly higher coefficient of friction than Teflon. In addition, it is abrasion, impact, and corrosion resistant and is self-lubricating. GAR-DUR® UHMW plasticwasassignedan abrasionratingof10; results for the other materials tested are shown in relation to thisbaseline. UHMW, also known as UHMW-PE (Ultra High Molecular Weight Polyethylene), is a semi-crystalline thermoplastic material, with a continuous use temperature range of up to 180° F (82° C). 10 - . Although, reliable sources (mentioned at the reference section) has been used for compiling the above COF table but still the values shown are approximate only. PTFE and PE Wax show a low initial coefficient which quickly increases. It looks like the coefficient for HDPE is . Excellent abrasion resistance and wear characteristics. The mean coefficient of friction of the UHMWPE-on-PEEK and UHMWPE-on-cobalt chrome bearing couples with respect to increasing protein concentration is. It was observed by many researchers that friction and wear depend on various conditions such as load [1,2], contact surface roughness [3], sliding speed [4], geometry. 5 inches and lower a UHMW pad of 3 mm thickness and for pipe sizes NPS 2 inches and higher a UHMW pad of minimum thickness of 6 mm is used in between pipe support and secondary structural member for isolation purposes and friction reduction. A great deal of research in recent decades has focused on further improving its mechanical and tribological performances in order to provide durable. UHMW PE, Oil Filled. Regards, Peter P . Nolu-S is a unique compound of UHMW and a solid lubricant. Considering the porosity, mechanical properties, and friction coefficient, the optimal process parameters of the UHMWPE porous material were as follows: The sintering temperature was 180 °C or 190 °C, and the charging amount was between 3. Due to UHMW's high molecular weight, UHMW parts will also perform better where overcoming the forces of abrasion and friction is desired. Polymer; Thermoplastic; Polyethylene (PE); High Density (HDPE); UHMW PE (Ultra High Molecular Weight PE). UHMW rod comes in diameters that range from 1/2 to 12 inch, 10-feet long. The UHMWPE-(metal + PE) pairing had a lower coefficient of friction than the PE-metal pairing, which accounts for the decrease in value of the friction coefficient after /Xp was reached. 40. UHMW machined parts for replacing metal parts - UHMW-PE has also proven to be a good replacement for metal parts such as large chutes, wear strips. 15 - . While it has a significantly lower coefficient of friction than acetal, it doesn’t boast the same creep resistance. In new applications, the use of UHMWPE liners can make the angle of the. 19 vol. 40 . Although UHMW has around 12x the coefficient of thermal expansion of steel, because. 55. 61-Brake (Composite) Cast Iron. For pipe sizes of 1. It is very resistant to most chemicals, UV radiation, and micro-organisms, but doesn’t have the same creep resistance as Delrin. %. 15-. In stock. 30-. , rubber on pavement. 8 g. UHMWPE wear-resistant guide wheels are made of UHMWPE material, which has an extremely low coefficient of friction and excellent sliding properties. Suggested for: Searching for Rolling Friction Coefficient for UHMW Polymer Rollers I Coefficient of rolling friction for a lab cart. Shen and Dumbleton16 conducted a series of experiments to determine the effects of irradiation and load on the coefficient of friction for 316L-UHMWPE combinations under a dry. mg cos θ. The coefficient of friction (COF) was increased up to 65. Available Geometries. Redco™ DEADPLATE Absorbs energy to eliminate bounce back and vibration. A vaclue of 100 was designated for the amount of volumetric abrasion. Tivar® HPV – Bearing Grade Ultra-Low Friction UHMW Sheet $ 722. This advanced product uses oil filled polymers to lubricate mating surfaces with a dynamic coefficient of friction formula of less than 0. They have values of friction coefficient for HDPE and UHMWPE . 42, respectively, which were all lower than that of UHMWPE. It has extremely low moisture absorption and a very low coefficient of friction. Polystone M (UHMW-PE) is in compliance with FDA regulations as listed in the Federal Register under the Food, Drug and Cosmetic Act of 1958, as amendedIME UHMW made from recycled material has many other resins in it, with a higher coefficient of friction, just depends on how much mystery plastic that is in it. 053 is conservative. Evolution of the friction coefficient of the UHMWPE and UHMWPE-g-AA samples under seawater lubrication with a load of 50 N. 5. Its UPMW-PE (ultra-high molecular weight polyethylene) thermoplastic backing enables its low-friction and resistance to chemicals, abrasion, and vibration in demanding situations. UHMW PE, Oil Filled. UHMWPE Black PE-1000 (Ultra High Molecular Weight Polyethylene) Colour: Black Density: 0. The additives used also make this material static dissipative and. Reduces coefficient of friction in finished components by up to 80%. 43. The high molecular weight enhances a number of important physical properties, not the least of which are outstanding abrasion resistance, high impact strength and a low coefficient of friction. Under water sliding condition, the friction coefficient of the UHMWPE. 5 Scanning Electron Microscopy (SEM) 5. 12: against self - dynamic: 40 psi/50fpm : 0. The sliding advantage produced. ofGAR-DUR®UHMW isclearlydemonstrated bymeasuringitslossof volume against other materials. Steady-state coefficient of friction (COF) for CoCrMo or Ti6Al4V pin-like specimens against UHMWPE flat surfaces in Ringer’s solution at 37 °C (Fn = 30 N, L = 4 mm, frequency = 1 Hz and time = 3600 s). 5 µm • Test condition: – 1x106 cycles, 15 cm/s, Max Hertzian pressure = 12. A system in which f k = μ k N is described as a system in which friction behaves simply. % fibres of carbon sometimes caused stick slip behaviour at high testing temperatures [12]. Ultra-high-molecular-weight polyethylene (UHMWPE) is a semicrystalline polymer with a long history of use in orthopaedic applications, most notably in acetabular liners for THR implants. UHMW is used in: Knee,. 11, and it has good self-lubrication. The fracture toughness, low friction coefficient, high impact strength, and low density of UHMWPE have made it a popular choice as the articulating surfaces of joint replacements, such as hip, knee, ankle, and shoulder. UHMW (excluding reprocessed UHMW) has been approved by the Food and Drug. 01 µm, disk = 0. 4. 25 and 0. 45 – 0. This paper studies the effect of contact stress on friction and wear of ultra-high molecular weight polyethylene (UHMWPE) acetabular cups by means of friction and wear joint simulator testing. It was found that the tribological and mechanical degradation was attributed to the damage in the molecular structure of. Results from tests showed that the yarn–yarn coefficient of static friction (CSF) has been improved from 0. Ultra High Molecular Weight Polyethylene (UHMWPE) and High-Density Polyethylene (HDPE) are both extremely tough plastics with high abrasion and wear resistance. 2014. It turns out that friction coefficients have the same variation trend under different angle amplitudes. 15-. An improvement of 280% in pull-out shear strength was achieved for PPy-treated UHMWPE fiber, while, IFSS with epoxy. KG. 1 AMUs (atomic mass units). 29 - - Ball indentation hardness 35 MPa 2039 -1 Shore hardness D 64 - 868 Thermal Properties Value Unit DIN/EN/ISO. RE: friction coefficient of UHMW and HDPE kjoiner (Mechanical) (OP) 1 Nov 02 15:33. Lowest Friction Available. TIVAR Cestigreen UHMW-PE is a permanently static dissipative material with extremely high molecular weight. First, the bulk material is biocompatible. 1-0. Help Global Buyers Source China Easily. For smooth steel and PE, the dynamic COF is below 0. It can also be customized according to your requirements. In 25% serum, the coefficient of friction was 0. 27 × 10 −5 mm 3 /Nm which were 52% and 61%, respectively, lower in comparison with those of bulk. Some grades have an even lower value, meaning they. ofGAR-DUR®UHMW isclearlydemonstrated bymeasuringitslossof volume against other materials. Download scientific diagram | Friction coefficients for UHMWPE sliding against CoCrMo at 1, 2, and 5 N in PBS (•), BSF ( ), and BSA ( ). Coefficient of Friction (Dry vs Steel) Static: PTM 55007: 0. Manufacturer of UHMW Sheets & Rods - UHMW Sheet, UHMWPE Rod, UHMWPE Sheet and Uhmwpe Plastic Sheets offered by Rajdeep Associates, Bengaluru, Karnataka. 76 3 Wet Rubber 38. The uhmw u channel stock guide rail has strong abrasion resistance, and its abrasion resistance is 5 times that of nylon 66 and 7 times that of carbon steel. From Fig. TIVAR® Oil Filled UHMW is the material of choice for packaging, bottling, and food processing and handling applications requiring FDA and USDA compliance. Request your quote. The materials in contact are a roller of MDF turning on a UHMW vertical bar. 2. Impact strength is high and chemical resistance is excellent. Due to an extremely low coefficient of friction, its inherent lubricity minimizes heat-generating friction that tends to. This white paper introduces key concepts to consider when selecting plastic materials for friction and wear applications and introduces the science behind four distinct mechanisms of polymer wear including: Sliding wear. The coefficient of friction for different types of top chain and guide rails is shown in Table 2. The more inter-yarn friction can be. 03. UHMW is a hard plastic known for its high impact strength and low coefficient of friction. Chui and his Co-workers coated PPy on UHMWPE fiber to enhance its adhesion with an epoxy resin [58], [59]. This enhanced coefficient of friction leads to better wear life of mating surface. 060 represents, in our experience, skis with below average gliding properties and would therefore have potential for improvements. Moderate temperature range (-40°F - 225°F) Adhesive back makes it easy to apply. Testsamples arespunforatotalof7 hoursat1,750rpmina water-sandmixture. 125" x 48" x 120" Black Reprocessed UHMW Sheet. In addition to enhancing the wear resistance of the material, the incorporated and evenly dispersed oil gives this material a considerably lower coefficient of friction than standard UHMW-PE products. Friction coefficients in dry sliding as a function of wear track position for one cycle of the chirp, double Fermat's spiral, and the Archimedes spiral. 15-. CTE, linear D696 in/in°F 1. These attributes make them ideal for tough impact wear or. • Lasts longer than Virgin UHMW • Reduced chain wear • CUSTOM channel profiles available • Channel. UHMW (also known as UHMW-PE) stands for Ultra High Molecular Weight Polyethylene, which is a type of thermoplastic material characterized by its high strength-to-weight ratio, excellent abrasion resistance, low friction coefficient, and impact resistance. This is important when it’s used as a guide or wear ring or in a sealing application where the stick-slip. There are so many differences between the products that a list is the best way to explain: PTFE is substantially much more expensive than UHMW. Oxidative polymerization of pyrrole to deposit PPy is another coating approach for UHMWPE surface modifications. In food processing applications UHMW is and excellent choice for applications where strong smells or discoloration from food is an issue. The friction coefficient of virgin UHMWPE was 0. Friction study. COEFFICIENT of FRICTION (DRY) against self - static: 40 psi : 0. Higher wear resistant then Delrin and about the same coefficient of friction as Teflon. The wear behaviour of UHMWPE sliding against AISI 431 martensitic stainless steel, in the absence of abrasive particles, was investigated during a series. 30 0. Suitable for machining and fabrication. Fig. 15. I am planning to align an abs part that has a pin into a guide slot made from another plastic. 8 1 PA 6/6 PA ‐ 6 POM H. Image property and courtesy of Murdotec Kunstoffe GmbH & Co. The results show that the initial coefficient of friction increases exponentially with increasing attractive force. com. The basic chemical unit of UHMWPE is-CH2-. Coefficient of linear thermal expansion in/in/°Fx10-5 D696 6. Exceptionally high abrasion & impact. 302. Acetal (brand name Delrin) does pretty good In all these categories. An excellent general-purpose material, TIVAR® is a cost. The considerably lower coefficient of friction of LubX® eliminates the possibility of the slip-stick effect (backsliding) almost completely and thus increases process stability. 35. UHMW stands for Ultra High Molecular Weight Polyethylene and is defined as a polyethylene whose molecular weight is 3. 1 million or higher. 12Acetal plastic has a low coefficient of friction, high strength and excellent wear properties. ULF material is a specifically formulated UHMWPE (Ultra High Molecular Weight Polyethylene) with a self lubricating additive package to ensure consistent low-friction. The high molecular weight is what gives UHMW-PE a unique combination of high impact strength efficient of friction and abrasion resistance that outwears carbon steel 10 to 1 making it more suitable for applications where lower molecular weight grades fail. UHMWPE liners have a very low coefficient of friction and zero water absorption, and are widely used to eliminate agglomeration, bridging and suspension of various bulk materials in steel and cement production, mining and power generation applications. In all test groups, the friction coefficient of TPU with 60 and 70 A hardness was relatively stable. Applied normal loads were 203 N; *applied normal load was 122 N. 05: Cadmium. 3 - - - 150-300, for biax film >50 3M™ UHMW-PE Film Tape 5423 is a thick, general-purpose polyethylene tape made for high-impact, abrasion, and sliding applications. Reprocessed UHMW-PE offers all the same benefits of standard UHMW-PE sheets but at a much more cost-effective price. Differences: There are so many differences between the products that a list is the best way to explain: PTFE is substantially much more expensive than UHMW. Impact fatigue. 75 . 5 wt. • Entrainment speed and slip to rolling ratio have direct effect on friction coefficient. 4, which was. a 200 per cent increment of the load, the reduction in the friction coefficient is obtained as 23 and 41 per cent for UHMWPE for the sliding speeds of 1. 12 to 0. 1-0. will deliver for you. 6 and a dynamic coefficient range of 0. In food processing applications UHMW is and excellent choice for applications where strong smells or discoloration from food is an issue. 05), UHMWPE is able to reach a somewhat respectable 0. The next ASTM meeting of the UHMWPE working group will be in May, 2013. High temperature resistance. (UHMW-PE): Designed for performance. J Mech Behav Biomed Mater. The friction coefficient increases firstly and then decrease with an increase in sliding speed and contact pressure for counterface with Ra=0. Low moisture absorptionthat combines an incredibly low coefficient of friction with outstanding impact strength at low temperatures, ideal for reducing wear and friction in. UHMW-PE based products offer a host of exceptional attributes that include high abrasion resistance, low coefficient of friction and one of the highest impact strength ratings of any thermoplastic. Coefficient of Friction: Dry Contact: Lubricated Contact: Aluminum. UHMW’s host of exceptional attributes such as high abrasion resistance, low coefficient of friction and unparalleled impact resistance, even in cryogenic environments, make it a favorite. from publication: Friction, lubrication, and polymer. 96% for 720 h aging time and 80 °C aging temperature. 0 mil UHMW polyethylene backing, rubber adhesive, paper liner, temperature use range -30 degrees F to 225 degrees F. Regards, Peter P . 2 0. 3 is it clear that for pv ≈ 0. 1. Low friction. PTFE is slippery than UHMW (although both have a lower coefficient of friction) UHMW has much better wear properties than PTFE. La. HDPE vs. The mean coefficient of friction of the UHMWPE-on-PEEK and UHMWPE-on-cobalt chrome bearing couples with respect to increasing protein concentration is shown in Fig. UHMW polymers feature a low coefficient of friction, well-suited for manufacturing chain channel, wear strips, belt scrapers, guides, and rollers. The coefficients of friction between yarns were tested by means of Capstan method. 010” up to 12” thick plate and rod from ¼” diameter to 12” diameter. 28 Coefficient of Friction, Plastics to Plastic Static 0. For reducing wear of UHMWPE component in TDR, it is necessary to decrease the contact pressure in design as much as possible. When loading 10% MCF, the friction coefficient initially significantly increased from 0. UHMW’s host of exceptional attributes such as high abrasion resistance, low coefficient of friction and unparalleled impact resistance, even in cryogenic environments, make it a favorite. The average price for HDPE is roughly $1. Low coefficient of friction makes it very slick. 15 on this metric. The friction coefficient value changes not only with material but also with the position and. Redco™ UHMW is proven to outlast mild and hardened steel by as much as 10 to 1. Processing Method: CNC Precision Machined. High impact resistance. In addition to enhancing the wear resistance of the material, the incorporated and evenly dispersed oil gives this material a considerably lower coefficient of friction than standard UHMW-PE products. Abrasive wear. The coefficient of friction between UHMW to UHMW/Steel surface is considered 0. With increasing protein concentration (above 2%), there was a trend for decreasing friction for both material combinations. 77 0. 2 /kg, and the cost for UHMW can be anything between $2– and –$6 /kg. In addition to enhancing the wear resistance of the material, the incorporated and evenly dispersed oil gives this material a considerably lower coefficient of friction than standard UHMW-PE products. Available. Virgin UHMW sheets have very low moisture-absorbing characteristics. Thermal Expansion Coefficient: 2. The standard method of deriving CoF values for thermoplastic materials is the ASTM D3702, which makes it possible to compare materials and predict their wear performance. Since Teflon’s weaknesses are wear and compressive strength, additives like glass beads or fibers, and graphite improve both of those characteristics helping it to last longer in belt support. Its UPMW-PE (ultra-high molecular weight polyethylene) thermoplastic backing enables its low-friction and resistance to chemicals, abrasion, and vibration in demanding situations. 20 static, . It combines very low friction with excellent impact strength and a wear resistance much better than steel. 7 MPa) so you will need more material to carry the same load. ( d ) Friction coefficients of uncoated, UHMWPE coated and. The maximum coefficients of friction for UHMWPE-1 and UHMWPE-2 are 0. UHMWPE Material performs well in these high-stress applications due to its low friction coefficient and excellent impact strength. Figure 6 shows that the time-varying curves of the swing and composite motion friction coefficient of CoCrMo/UHMWPE contact pair in 25% bovine serum. A spray-painted pure GNP layer decreases the friction coefficient by a 40–50%, but the layer adhesion and. The surface of α-T/UHMWPE-F became smooth under friction so. UHMW’s host of exceptional attributes such as high abrasion resistance, low coefficient of friction and unparalleled impact resistance, even in cryogenic environments, make it a favorite. Call: 01992 515880. from publication: DETC2009-86365 Numerical Investigations of Mechanical Responses,. UHMW exhibits excellent chemical, abrasion, and impact resistance, as well as a low coefficient of friction. These attributes make them ideal for tough impact wear or. The material is distinguished for its outstanding sliding. In material handling, the use of UHMW-PE sprockets and bearing surfaces. • Cavities act more like surface defects than lubrication enhancers. Oil filled UHMW has a low coefficient of friction and good impact resistance. The friction coefficient of the chain guide is small, only 0. TIVAR® Oil-Filled UHMW-PE is an ultra high molecular weight polyethylene material that truly lives up to the self-lubricating description. 07, 0. Both materials are commonly used in industrial applications such as gears, bearings, and wear strips. However, the material also needs to have a silicone free. 46 with increasing depth, but the static friction coefficient increases only from ∼0. 2 (but can vary with surface finish and speed). Despite the success of this restorative procedure, UHMWPE have only a finite lifetime. It also is the best material for minimizing stiction. PTFE can only handle about 1/5th the load of UHMW. The coefficient of friction is an important tribological property of polymer materials. Therefore, it can be placed inside a patient without the human body reacting experiencing a negative action. Translucent, 10. UHMW-PE sliding fender is usually used in waterways, ports, wharf construction, pontoon bridges and composite fenders. UHMW (excluding reprocessed UHMW) has been approved by the Food and Drug. 76 Dynamic 0. It is one of the most wear-resistant plastics, and has toughness and impact resistance even at low temperatures. 54. Friction on an inclined plane. Some nylons can be a real bitch to machine and Nylatron can be a little brittle so be careful not to machine too aggressively in the wrong spots. PEEK composites are filled. 078 Static Coefficient of Friction for Steel on Steel. This tape line is designed for mechanical applications where high abrasion resistance and a low coefficient of friction is required. In order to find the friction force, μ has. 30 Dynamic 0. For the UHMWPE composites sliding against GCr15 steel under water lubrication conditions, the friction coefficients of all composites decreased with an. )10% of a friction-reducing additive was added along with a compatible dispersant. While it remains true that the coefficient of friction between PTFE. 2 Measurement of the Coefficient of Friction 5. When angle amplitudes are ±5°,. High-Bond Low-Friction UHMW Tape. Recommend testing. Coefficient of Linear Expansion: -200 to -100°C: D696: K-1 ~0. 0 /5 · 0 reviews ·TapeCase UHMW Polyolefin Film Tape 2302-10, is a natural colored 11. 5 Coefficient of friction (dynamic) 0. UHMW Applications Typical applications include gears, springs, plates, bushings and housings. 4 million joints replacements are performed around the world). UHMW-PE molding and extrusion materials: FDA: Natural: Polystone® M (UHMW-PE) Is in compliance with FDA regulations as listed in the Federal. PTFE is more slippery than UHMW (despite both having a low coefficient of friction) UHMW has far better wear properties than PTFE. 5 yrs CN Supplier . Self-lubricating. The following table gives an indication of the abrasion resistance of Redco™ UHMW polymer. (UHMWPE) microparticles on the tribological performance of high-strength glass fabric/phenolic laminate composite. The coefficient of friction of UHMWPE primarily depends on surface texture of harder material surfaces. This tape features a unique combination of properties that make it ideal for many tough impact wear or sliding applications. 4. Virgin natural UHMW has a continuous use temperature rating of 180 degrees F and coefficient of friction of . The most common value found for the coefficient of kinetic friction (μ k) and coefficient of static friction (μ s) for Teflon is 0. In 25% serum, the coefficient of friction was. The right polymeric compounds can thwart wear and friction problems in bearings, bushings, slides, and gears. 3, respectively, is observed. Furthermore, UHMWPE has a low coefficient of friction and a nonstick self lubricating surface. UHMWPE liners. 5 MPa • UHMWPE sterilized – Irradiated at 2. Coefficient of Friction: Dry Contact: Lubricated Contact: Aluminum. In typical polyurethane applications, the kinetic COF ranges from 0. Environment and disposal technology. Antistatic Low-Friction UHMW Tape. ‐lb/inch of notch ‐Higher is better) 0 0. 5 wt %) is. Even though GAR-DUR® UHMW is. Material must be salt water and grease/oil resistant. Micrographs on the friction surface of (a) the UHMWPE/HDPE and (b) nanocomposites with 3. Product applications: Lining technology. Dynamic Coefficient of Friction (-) ISO 7148-2 (18) 0. UHMW: Cost. 1-0. Thus, UHMWPE has a wider. 1), however the wear resistance is 8 times better than PTFE. Protect small parts with these slippery UHMW rings, discs, and squares. 76 0. 1 2. 96% for 720 h aging time and 80 °C. OVERVIEW of Tivar® Oil Filled UHMW-PE Tivar® Oil Filled is the material of choice for packaging, bottling, and food processing and handling applications requiring FDA and USDA compliance. 13 to ∼0. Those both had about 2-3x the CoF of traditionally-constructed UHMWPE samples. The low friction coefficient and high abrasion resistance of UHMW-PE provides an ultra smooth surface for the vessel to slide easily along the face of the fenders. UHMW Guide Rail. A higher load will destroy the colloidal anti-friction layer. TIVAR® DrySlide is a UHMW-PE product with an internal lubricant built into the polymer matrix with higher molecular weight. In addition, we have added surface electrical conductivity of 10⁶ Ω/sq. Tensile Strength: 3,100psi; Flexural Modulus: 110,000psi; Coefficient of Friction: 0. [10] filled PTFE with alpha-phase alumina nanoparticles, and found that an increase in filler content was able to reduce the wear. 2. 5 µm, the coefficient of friction statistically significant increases when. 2, while rubbing with sample no. 5 inches and lower a UHMW pad of 3 mm thickness and for pipe sizes NPS 2 inches and higher a UHMW pad of minimum thickness of 6 mm is used in between pipe support and secondary structural member for isolation purposes and friction reduction. In addition, its impact strength is high, and its chemical. 1492 and 0. The extraordinary durability and versatility of UHMW-PE is used by designers and engineers in many industries worldwide. The coefficient of friction of UHMWPE has intermediate values. It has outstanding abrasion resistance and an extremely low coefficient of friction. 0 MPa m/s for the friction pairs UHMWPE–18Kh2N4MA steel and UHMWPE–45 steel, a rather sharp increase in the friction coefficient to 0. 04 /Sheet. 16 :Polymer; Thermoplastic; Polyethylene (PE); High Density (HDPE); UHMW PE (Ultra High Molecular Weight PE) Material Notes: This property data is a summary of similar materials in the MatWeb database for the category "High Density Polyethylene (HDPE), Ultra High Molecular Weight". Thermal properties . PTFE is more slippery than UHMW (despite both having a low coefficient of friction) UHMW has far better wear properties than PTFE. 14. HighLine is now able to offer a line of white color UHMW-PE sheets with ESD (ElectroStatic Discharge) properties. 02), and zero wear found by optical microscopy observations. Melting Point D3418 °F 275° Maximum Service Temperature, Air - °F 180° Deflection Temperature at 1. 12-0. 5 MRad in airThe wear loss of UHMWPE at a stroke of 100 µm showed a similar tendency as the friction coefficients, but monotonously increased with increasing of temperature for a stroke of 200 µm. These sheets are ideal for food, medical and cleanroom applications. O. • Coefficient of friction depends inversely on the applied load along walking cycle. 9 MPa. 64 – $ 5,251. Coefficient of friction: It is difficult to beat PTFE on this parameter, although UHMWPE comes fairly close. 20 on steel Dynamic . 05 N/mm2, v= 0. 44 0. g. PTFE is significantly more expensive than UHMW. I see that there is now Delrin AF, which has threads of Teflon added. 9 0. IME UHMW made from recycled material has many other resins in it, with a higher coefficient of friction, just depends on how much mystery plastic that is in it. It could be seen that the friction coefficient of UHMWPE under dry sliding is about 0. Due to its low coefficient of friction, parts made from UHMW will also produce less noise when in motion. Dynamic friction coefficient (COF) of the reciprocating sliding contact of the conventional UHMWPE, was investigated in four different environments (dry contact; distilled water; pure Ringer's solution and with PMMA particles), at five values of low normal load (0. 3M™ UHMW-PE Film Tape 5421 is a. Aluminum:. Low friction. 46-Aluminum: Steel. Thus, a 4 x 106 molecular weight resin contains approximately 285 x 103 carbonLopez et al. 0. 02–0. UHMW also replaces metal in many applications. 2 to 2. Applications include guide rails, wear plates, rollers, conveyor augers, bin and hopper lines, chutes, bearings, bushings, and gears. 30 QTM 55007 (20)Test No. The variation of friction coefficient and wear loss with test time for UHMWPE composites under dry sliding and water sliding is shown in Figure 2.