La. Available Geometries. The mean coefficient of friction of the UHMWPE-on-PEEK and UHMWPE-on-cobalt chrome bearing couples with respect to increasing protein concentration is. 0 wt% were 0. 0 MPa, and two. 0: in/in/°F x 10-5: Melting Point (Crystaline Peak) 279-289 °F: Volume Resistivity >10 15: ohm-cm: Surface Resistivity >10 15: ohm-cm: Water. will deliver for you. This paper deals with the friction coefficient behaviour during dry reciprocating sliding of UHMWPE in contact with alumina (Al2O3), within a range of velocities typical for hip implants. toughness, the low coecient of friction of UHMWPE yields a self-lubricating, nonstick surface. Ultra-high molecular weight polyethylene (UHMW-PE) is defined as polyethylene with a molecular weight of 3. 04 /Sheet. Surface Condition Force Applied Coefficient of Friction 1 Wet Rubber 37. 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. Reduces coefficient of friction in finished components by up to 80%. UHMW PE, Static Control. Black Reprocessed UHMW - Material Data Sheet This grade of reprocessed UHMW contains multi-colored particles of finely reground UHMW-PE polymer. 5 Scanning Electron Microscopy (SEM) 5. 0. UHMW’s coefficient of friction is also quite low. 2 and 3. Available. 1 2. 46 with increasing depth, but the static friction coefficient increases only from ∼0. 2, while rubbing with sample no. mN). UHMW's low coefficient of friction enhances efficiency and productivity in automotive, railroad, medical, printing and packaging industries as well as for material handling and food processing applications. 0. All of these grades hold many different properties which make PE a highly sought after material for a variety of applications. 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. 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. 11, and it has good self-lubrication. The curves of the composite motion and the swing friction coefficient have the characteristics of going up first and dropping after and finally stabilizing. 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. 2 Plastic polymers. Learn more at Curbell Plastics. However, contact zone was obviously different with a friction coefficient ratio of 1 comparing to that with a friction of coefficient ratio of 1. Thanks. Suitable for machining and fabrication. Manufacturer of UHMW Sheets & Rods - UHMW Sheet, UHMWPE Rod, UHMWPE Sheet and Uhmwpe Plastic Sheets offered by Rajdeep Associates, Bengaluru, Karnataka. 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. 8 shows the variation of friction coefficient of pure UHMWPE, MC- modified, AF-modified and AF/MC-modified composites at 0. Reduces coefficient of friction in finished components by up to 80%. UHMW PE, Static Control. Buy Uhmw Coefficient Of Friction China Direct From Uhmw Coefficient Of Friction Factories at Alibaba. A system in which f k = μ k N is described as a system in which friction behaves simply. TIVAR Oil-Filled UHMW-PE is an ultra high molecular weight polyethylene material that truly lives up to the self-lubricating description. 06 . PTFE is more slippery than UHMW (despite both having a low coefficient of friction) UHMW has far better wear properties than PTFE. 0. 2 to 1. More economical that PTFE tapes. toughness, the low coecient of friction of UHMWPE yields a self-lubricating, nonstick surface. Applications include guide rails, wear plates, rollers, conveyor augers, bin and hopper lines, chutes, bearings, bushings, and gears. 45 – 0. The additives used also make this material static dissipative and. UHMW possesses a unique combination of physical and mechanical properties which enable it to perform well under the most rigorous conditions. 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. Spray-coated GNP shows the lowest friction, 40% less than UHMWPE, although with low adhesion. 15 on this metric. 6 – 0. 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. 3, respectively, is observed. 19 vol. 5 MPa) depending on the ionizing radiation dose of PE-UHMW (in the range 25-250. 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. UHMWPE offers excellent wear resistance and a low-friction surface, and has been effectively used in artificial joint replacements such as knee and hip replacements [115]. UHMW formulations include static reduction, lower friction, higher compressive strength, increased hardness, and temperature resistance to 280 o F. Fig. 1. The coefficient of friction between UHMW to UHMW/Steel surface is considered 0. Friction responses of the diamond scratch. UHMWPE has a very low friction coefficient, low wear, and high. Extremely high abrasion resistance. 15-. It is odorless, tasteless, and nontoxic. 5-2. 20 on steel Dynamic . In typical polyurethane applications, the kinetic COF ranges from 0. 1-0. UHMWPE Material performs well in these high-stress applications due to its low friction coefficient and excellent impact strength. COEFFICIENT of FRICTION (DRY) against self - static: 40 psi : 0. PTFE can only handle about 1/5 the load of UHMW. 8 1 PA 6/6 PA ‐ 6 POM H ‐ C PET ‐ The coefficient of friction is an important tribological property of polymer materials. Testsamples arespunforatotalof7 hoursat1,750rpmina water-sandmixture. 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. Good non-adhesiveness, easy to clean the surface adhesion. Low Coefficient of Friction Reprocessed UHMW is used in applications where high levels of friction are likely to arise including conveyor guard rails, augers and wear strips, belt scrapers, chain guides, and idler. X-LINKED UHMW is typically used for chute and hopper liners handling products such as sand, mineral fines, cement, coal and grain plus baghouse and chain drag lining. 20 . 7:Used to protect surfaces from abrasion, 3M™ UHMW-PE Film Tape 5421 is a thin caliper general purpose polyethylene tape that creates a %22slip plane%22 effect to allow contact without wear. 20 dynamic 0. Ff = frictional force (N, lb) μ = static (μs) or kinetic (μk) frictional coefficient. 03. 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. 5 µm • Test condition: – 1x106 cycles, 15 cm/s, Max Hertzian pressure = 12. 77 0. TIVAR Cestigreen UHMW-PE is a permanently static dissipative material with extremely high molecular weight. e. 20: Izod Impact Strength 73°F: KJ/m 2: D 4020-96: 125: Hardness 73°F-D 785: Shore D 62 - 66: Melting Point °F: D 789:. The average price for HDPE is roughly $1. tl;dr: the CoF for printed ABS was moderately higher than for PLA (by 50-70%), depending on the test conditions. ULF material is a specifically formulated UHMWPE (Ultra High Molecular Weight Polyethylene) with a self lubricating additive package to ensure consistent low-friction. When angle amplitudes are ±5°,. UHMW-PE has a low coefficient of friction, decreasing the energy needed to operate machinery. Teflon also has other interesting properties. People often mistake the coefficient of friction μ for the frictional force F f . Coefficient of linear thermal expansion in/in/°Fx10-5 D696 6. 02–0. ( d ) Friction coefficients of uncoated, UHMWPE coated and. The friction force is the force exerted by a surface when an object moves across it - or makes an effort to move across it. 4. A subset of the thermoplastic polyethylene, UHMW (aka UHMWPE) is characterized as one of the miracle polymers of the 20th century. 03. 3 is it clear that for pv ≈ 0. 300: 0. Test prove that NanoSlick Lubricants are able to achieve an amazing 0. 5 yrs CN Supplier . Protect small parts with these slippery UHMW rings, discs, and squares. 06. 11, and it has good self-lubrication. 1-800-553-0335 Ask a Plastics Expert Locations Sign In Cart (0) There are so many differences between products that they are best described in the list. 21 (wet) Brass: Steel. Its coefficient of friction is significantly lower than nylon and acetal, and is comparable to PTFE, with superior abrasion resistance. 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. Under water sliding condition, the friction coefficient of the. Under laboratory conditions, however, it. Concrete (Wet) Rubber. 5 mil industrial grade film tape that provides an abrasion resistant surface with a low coefficient of friction. 8 g. The UHMWPE has the lowest coefficient of friction among the polymers exhibited lower wear of the implant and risk to the patient (each year about 1. Coefficient of friction against hardened and ground steel P= 0. [10] studied the effect of surface texturing of UHMWPE, acting as a bearing material lubricated with distilled water, on the coefficient of friction, µ, under high applied loads, L, and low sliding-rolling ratios, SRR; however, such conditions, did not correspond to those of the walking cycle for a commercial model of knee prosthesis. 40 . [10] filled PTFE with alpha-phase alumina nanoparticles, and found that an increase in filler content was able to reduce the wear rate. 46 with increasing depth, but the static friction coefficient increases only from ∼0. UHMW has surface and chemical properties that are rare to find in high-performance polymers. UHMWPE panel is also called PE pad, face pad, and plastic pad in some areas. The total wear volume of TPU with 70 A hardness was 45. The friction coefficient is the ratio of the friction force between two materials or materials and another surface to the normal force. In addition, it is abrasion, impact, and corrosion resistant and is self-lubricating. With our ultra-precise cutting tools and decades of experience, Reading Plastic can deliver the high-quality parts you need right on time. Friction coefficient was mostly influenced by axial load; its increase led to a decrease in friction. % NaCl solution, respectively. 2 0. 43. Its coefficient of friction is significantly lower than that of nylon and acetal and is comparable to that of polytetrafluoroethylene (PTFE, Teflon), but UHMWPE has better abrasion resistance than PTFE. 2. As a premium lubricant-filled grade that offers low moisture absorption, and excellent chemical resistance, TIVAR 88-2 UHMW-PE. 3 0. This electrical conductivity means that the material is ATEX compliant. 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. 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. 5 wt %) is. 96% for 720 h aging time and 80 °C aging temperature. 07 and became more stable during the. Search Search. First, the bulk material is biocompatible. 5 wt. Coefficient of Friction, Plastics to Steel Static 0. • Cavities act more like surface defects than lubrication enhancers. 11. It was found that the tribological and mechanical degradation was attributed to the damage in the molecular structure of. Outstanding impact strength, even at low temperatures. 25, which is higher than the coefficient of friction of PTFE (0. 15-. Download White Paper. Friction study. The friction coefficient of the chain guide is small, only 0. 1520 compliant , bearing grade with a built in dry lubricant that gives finished components a Coefficient of Friction (COF) reduction rate of up to 80%. This advanced product uses oil filled polymers to lubricate mating surfaces with a dynamic coefficient of friction formula of less than 0. The coefficient of friction (CoF) is a measurement of the resistance generated when sliding the surface of one material over another. f = frictional force. 81 COMPARISON OF DYNAMIC COEFFICIENT OF FRICTION ON POLISHED STEEL Because of its low coefficient of friction, UHMW-PE is self-lubricating; it replaces unwanted grease and oil in many applications such as bearings and conveyors. 23 and that of kinetic friction (CSF) increased from 0. This tape features a unique combination of properties that make it ideal for many tough impact wear or sliding applications. A thin layer of Ultra High Molecular Weight Polyethylene (UHMWPE) or UHMWPE + PFPE is coated onto cylindrical aluminium (Al) pin (4. The initial friction coefficient of α-T/UHMWPE-F was the highest in all the α-tocopherol stabilized UHMWPE specimens, which is due to the scratches and furrows on the surface of α-T/UHMWPE-F after the effect of force and degradation, and the surface was very coarse (Fig. They are fixed to the panel generally with stainless steel studs that are welded to the skin of the steel panel. The friction coefficients of UHMWPE/PMF-2. It is seen that loading with the CNF resulted in a halving friction coefficient compared with neat UHMWPE due to the solid lubricant effect of the nanofiller . (1) Measurements of TI and T2 in skidding conditions enable a friction coefficient. Download : Download full-size image; Fig. , rubber on pavement. Evolution of the friction coefficient of the UHMWPE and UHMWPE-g-AA samples under seawater lubrication with a load of 50 N. This grade is often. Moderate temperature range (-40°F - 225°F) Adhesive back makes it easy to apply. 115 respectively. FMorin (Mechanical) (OP) 12 Feb 05 13:57. 35. 30 QTM 55007 (20) 0. 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. 1. An excellent general-purpose material, TIVAR® is a cost. TIVAR® Oil Filled UHMW is the material of choice for packaging, bottling, and food processing and handling applications requiring FDA and USDA compliance. 5 wt% . Ultra High Molecular Weight. The friction energy (F E) dissipated during one oscillating cycle with a stroke 2Δx corresponded to the area within the friction loop hysteresis, as described in detail elsewhere. This Ultra High Molecular Weight (UHMW) Polyethylene will outwear all other materials, including metals, nylons, urethanes, and fluoroplastics. 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. The weight loss of CNT-reinforced UHMWP was found to decrease with the increasing amount of. The coefficient of friction is not a function of mass or volume. 7 0. 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). UHMWPE pipes have reduced coefficient of friction, improved abrasion resistance, lower wear rates over conventional HDPE pipes such as PE100. Select options; Delrin® – High Strength Black Homopolymer Acetal SheetUHMW PE, Glass Filled. These sheets are ideal for food, medical and cleanroom applications. 15 - 0. With TIVAR® Oil Filled, conveyors operate more. Virgin UHMW sheets have very low moisture-absorbing characteristics. Low coefficients of friction, wear resistant plastic materials – e. ‐lb/inch of notch ‐Higher is better) 0 0. 75. Thickness ranges from . According to research, the co-efficient of dynamic friction of ultra high density polyethylene under dry conditions is around 0. 125 Uhmw Black Round Uhmw Strip Uhmw 1/2 Uhmw Plastic Polyethylene Sheet Uhmw Black Uhmw Polyethylene Uhmw Tube Uhmw 48. This product maintains all of the performance properties of the standard low coefficient of friction material. For different friction coefficient ratios of dual mobility hip implant, (1) contact pressure and contact area varied with applied loads. UHMW. Thanks for the link. 8a, b that the friction coefficient of pure UHMWPE sample gradually increased with the progress of test, while the friction coefficient of UHMWPE-15, AF-5 and MC-AF. 0. 18 by adding only 0. 20 IZOD impact strength 73°F KJ/m. The results show that the initial coefficient of friction increases exponentially with increasing attractive force. 6 mm diametre) surface with the aim of providing wear resistant coating on this soft and tribologically poor metal. 25 : Maximum Static Bearing Load (P) PTM 55007:. Reprocessed UHMW-PE offers all the same benefits of standard UHMW-PE sheets but at a much more cost-effective price. For instance, a large aluminum block has the same coefficient of friction as a small aluminum block. Exceptionally high abrasion & impact. 4 million joints replacements are performed around the world). • Lasts longer than Virgin UHMW • Reduced chain wear • CUSTOM channel profiles available • Channel. UHMW-PE molding and extrusion materials: FDA: Natural: Polystone® M (UHMW-PE) Is in compliance with FDA regulations as listed in the Federal. UHMW is chemically inert, absorbs virtually no moisture, and can be machined very easily. Coefficient of Friction 73°F on Steel--static 0. (SCF) improved the wear resistance and also reduced the coefficient of friction up to an optimum concentration of 20 vol. Very Good abrasion and wear resistance. 0% untreated CNFs. 1. The UHMWPE fender facing pad has the features of light, anti-impact, corrosion resistance, anti-ultraviolet ray, aging resistance, low friction, non-pollution. 9 0. Virgin UHMW sheets have very low moisture-absorbing characteristics. UHMW exhibits excellent chemical, abrasion, and impact resistance, as well as a low coefficient of friction. Low coefficients of friction, wear resistant plastic materials – e. Extremely low moisture absorption. 28 Coefficient of Friction, Plastics to Plastic Static 0. Call us today at (610) 926-3245 to learn more. Select options; Tivar® H. Table 3: Tyre Dragging Tests – Coefficients of Friction Coefficient of Friction Site No Grass Surface Dry Wet 1 2 4 5 White Clover Rye-grass (long) Browntop Agridark 0. 1 million or higher. 1 presents the six-station means of the dynamic coefficient of friction and their respective standard deviation as a function of sliding cycles for the Ultra Polish Treated and Standard CoCr against UHMWPE. In addition, it is abrasion, impact, and corrosion resistant and is self-lubricating. UHMW Applications Typical applications include gears, springs, plates, bushings and housings. g. The considerably lower coefficient of friction of LubX® eliminates the possibility of the slip-stick effect (backsliding) almost completely and thus increases process stability. 10 - . Processing Method: CNC Precision Machined. 2302 uhmw tape low coefficient of friction, Saint-Gobain CHR 2302 UHMW Tape Properties, polyolefin film coated with acrylic adhesive UHMW Tape, uhmw tape for chutes and conveyors, uhmw tape for guide rails to reduce. TIVAR 88-2 Ultra High Molecular Weight Polyethylene UHMW-PE UV stabilized shapes offer the lowest coefficient of friction of all TIVAR 88 grades. 19, as the samples exposure from 21 s to 4 min. The results obtained for a combination: PE-UHMW polyethylene - ANSI 316L stainless steel (the static friction coefficient µ 0 as a function of the contact pressure p) Rys. 68 0. HighLine is now able to offer a line of white color UHMW-PE sheets with ESD (ElectroStatic Discharge) properties. 19: 0. It was found that the tribological and mechanical degradation was attributed to the damage in the molecular structure of. [10] filled PTFE with alpha-phase alumina nanoparticles, and found that an increase in filler content was able to reduce the wear. Unfortunately, the tensile strength is low (4300 psi / 26. 4–0. The superior sliding performance of TIVARResulting values of COF (coefficient of friction) for UHMWPE vs. SU-8 with 25 wt% of UHMWPE showed coefficient of friction of 0. 25 1 4 1 4X48 X96 1. HC-PE showed a slightly lower coefficient of friction than LC-PE. The tension of transmission chain is calculated by dividing the transmitted power (indicated as kW or horsepower) by the chain speed and multiplying. TIVAR® 1000 Virgin UHMW-PE components are often favored as solutions for bearings, bushings, chain guides, sprockets, gears, rollers, paddles, and scrapers. 1 (on average, which is low). The property that larger contact pressure is associated with lower friction coefficient was also shown from the in. Ultra-high molecular weight polyethylene All existing data on UHMWPE indicate that for (UHMWPE) is a unique polymer with outstanding very elderly patients,. 25 : 0. LubX® C is known for its high impact strength and is also light in weight, resistant to staining, and has a low moisture absorption rate. Thick caliper for extreme wear, durable abrasion resistant backing, long wear life,. GAR-DUR® UHMW plasticwasassignedan abrasionratingof10; results for the other materials tested are shown in relation to thisbaseline. Relative speed was manifested for SRR 1. and stand pipes. 078 Static Coefficient of Friction for Steel on Steel. The next ASTM meeting of the UHMWPE working group will be in May, 2013. 8. 5. 03. This characteristic was also found in total hip replacement by Wang et al. ‐lb/inch of notch ‐Higher is better) 0 0. The coefficient of friction would be determined by the force required to move the block divided by the weight of the block as measured with gravity. Suitable for machining and fabrication. The material has a low coefficient of friction, is biocompatible, and inexpensive to produce. Low friction. Reprocessed UHMW – Polystone® M Reprocessed offers an economical UHMW solution with a low friction coefficient and superior wear resistance, perfect for applications demanding high durability and. The reason is the large d ifference between the coefficient of thermal expansion of. 32 to ∼0. 25 Wear Resistance Sand Slurry - 130 . Property: UHMW-PE: Nylon 6: Nylon 6/6: Nylon/MoS 2: PTFE: Acetal Copolymer: Dry: 0. The coefficient of friction was nearly half than that of unfilled PEEK and decreased to a fourth at 150. 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. 75. Excellent abrasion resistance and wear characteristics. UHMW Applications Typical applications include gears, springs, plates, bushings and housings. UHMW is known for its excellent impact resistance and chemical resistance, while Delrin is known for its high stiffness and dimensional stability. TIVAR® Oil-Filled UHMW-PE is an ultra high molecular weight polyethylene material that truly lives up to the self-lubricating description. The sliding advantage produced. 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. Fig. UHMW-PE with low coefficient of friction and electrical conductivity. Characteristics of PE include: toughness, excellent chemical resistance and electrical properties, low coefficient of friction, near-zero moisture absorption, light weight and ease of processing. 0. Therefore, the friction coefficient of porous UHMWPE was about 0. Some grades have an even lower value, meaning they. What are the different grades of UHMW plastic? UHMW plastics come in various grades, each designed for specific applications with varying properties. Low-Friction UHMW Tape Shapes. At the same time, HDPE is notable for its impressive strength-to-density ratio. 100 - 0. Material must be salt water and grease/oil resistant. 1 to 0. Size: Customized Cut to Size. 3, respectively, is observed. High-Bond Low-Friction UHMW Tape. In addition, its impact strength is high, and its chemical. 005, 0. Texturing of UHMWPE in lubricated contact with an AISI 316L ball increases friction. To illustrate this concept, two examples are included. 01 µm, disk = 0. 40 . 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. 8 g. 4 0. Blanchet et al. 22:. 4 –0. Compare plastic materials: Select two or more materials and then click "Compare. The dry friction from solid ice-UHMWPE interactions is still relatively low when compared to systems such as stainless steel-UHMWPE (Yousif et al. UHMW PE is processed by compression molding or ram extrusion into sheets, plates or rods. UHMW also replaces metal in many applications. In food processing applications UHMW is and excellent choice for applications where strong smells or discoloration from food is an issue. This is important when it’s used as a guide or wear ring or in a sealing application where the stick-slip. 42, respectively, which were all lower than that of UHMWPE. The specimen is exposed to an abrasive wheel for 1000 cycles and weight loss of a material is measured. 50. The design requirements for these parts have four slides supporting a total of 200 lbs and sliding at a maximum rate of 1 FPS for short bursts. The friction coefficient and specific wear rate were presented as a. Superior sliding performance and high limiting pressure velocity. Its coefficient of friction is very low (0. 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. 11 to 0. Applied normal loads were 203 N; *applied normal load was 122 N. It is odorless, tasteless, and nontoxic. 10-. It has outstanding abrasion resistance and an extremely low coefficient of friction. 7 MPa) so you will need more material to carry the same load. Not only does Ultra High Molecular Weight not wear down and decompose (like metals), it has the lowest coefficient of friction for plastic. Low coefficient of friction; Corrosion, abrasion, wear and impact resistant;. Trelleborg's FQ1000 ultra-high molecular weight polyethylene (UHMW-PE) is the first choice material for facing steel fender panels and other heavy duty applications. 09, measuring almost as low as PTFE's coefficient of . 2. 77 0. 46-Aluminum: Steel. The friction coefficient for double Fermat's spiral is noticeably lower than the others. 05 to 0. ISO. 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 among. 51, and 0. 6 and a dynamic coefficient range of 0. 20 . Dec 14, 2021; Replies 8 Views 2K. 13 to ∼0. 0 m/s, contact. The exceptional hardness and slick. UHMW is typically stocked in 48″ x 120″ sheets where PTFE comes in 48″ x 48″ plates. Product applications: Lining technology. The coefficient of friction is a term that measures the ratio of the force of friction when two surfaces interact with a numerical value. The coefficient of friction of aged UHMWPE specimens for different aging periods is shown in Figure 4.