30 : Coefficient of Friction (Dry vs Steel) Dynamic: PTM 55007: 0. 4. 46 with increasing depth, but the static friction coefficient increases only from ∼0. N = normal force exerted on the body by the plane due to the force of gravity i. With increasing protein concentration (above 2%), there was a trend for decreasing friction for both material combinations. Product Introduction. 10-. Testsamples arespunforatotalof7 hoursat1,750rpmina water-sandmixture. 02–0. Vertical lines, loads corresponding to. sliding (slip between surfaces) where μ s is the coefficient of static friction and μ k is the coefficient of kinetic friction. 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. 5 Scanning Electron Microscopy (SEM) 5. High impact resistance. The sliding advantage produced. The critical difference between UHMW and HDPE is that UHMW is characterized by long polymer chains with extremely high molecular weights. Price Add to Cart; Item 45714. Among polymeric materials, ultrahigh molecular weight polyethylene (UHMWPE) is considered the best choice for medical and light-weight engineering applications in the construction and automotive industries, since it exhibits a unique toughness, abrasion, fatigue, and good chemical resistances, in addition to a very. And UHMW. In all test groups, the friction coefficient of TPU with 60 and 70 A hardness was relatively stable. 15-. N = normal force between the surfaces (N, lb) Friction coefficient curve is of sinusoid shape, whereat the opposite directions are marked with + and - sign, denoting coefficient of friction in two different directions of sample moving. The friction coefficient in general can be reduced by (i) introducing lubricant between two surfaces, (ii) changing the nature of sliding friction to rolling friction using ball bearings, and (iii) reducing the normal force. 03 to 0. 03. It is inert meaning that it doesn't react to many chemicals. Available. UHMW is a hard plastic known for its high impact strength and low coefficient of friction. A spray-painted pure GNP layer decreases the friction coefficient by a 40–50%, but the layer adhesion and. It combines very low friction with excellent impact strength and a wear resistance much better than steel. 20 static, . The coefficient of friction of aged UHMWPE specimens for different aging periods is shown in Figure 4. Exceptionally High Wear0. 29: Coefficient of thermal Expansion: D – 696: 20 X 10-5 /K: Max Service Temperature Short Term: 130°C:Coefficient of Friction (Dry vs Steel) Static. Apart from the sand slurry test, there is the taber abrasion test. 3 is it clear that for pv ≈ 0. 0 wt%, UHMWPE/PMF-6. This can be seen in the image below. Friction on an inclined plane. UHMWPE Black PE-1000 (Ultra High Molecular Weight Polyethylene) Colour: Black Density: 0. Self-lubricating and very low coefficient of friction;With the UHMWPE roughness of 0. This advanced product uses oil filled polymers to lubricate mating surfaces with a dynamic coefficient of friction formula of less than 0. The following table gives an indication of the abrasion resistance of Redco™ UHMW polymer. 28 vs . Low coefficients of friction, wear resistant plastic materials – e. 22:. Polyethylene PE500-1000 (UHMWPE) Sheet to solve friction, wear and material flow problems in many areas of industry. 20 kinetic) when used on steel. 1. In particular, experimental wear tests showed that friction coefficient in HoS couples decreases with the contact pressure [14] and in-vivo measurements by means of instrumented hip implants. 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. Extremely low moisture absorption. 21 0. Regards, Peter P . To develop prediction models of the coefficient of friction (COF) between AISI 316L steel and ultra-high molecular weight polyethylene (UHMWPE) lubricated with fetal bovine serum dilutions, the arthrokinematics and loading conditions prescribed by the ISO 142433: 2014 standard were translated to a simpler geometrical setup, via Hertz. Blanchet et al. In typical polyurethane applications, the kinetic COF ranges from 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. Ultra-High Molecular Weight Polyethylene (UHMWPE) is used in biomedical applications due to its high wear-resistance, ductility, and biocompatibility. coefficients UHMW Solid Lubricant E 500E 1000E 1200M-S COEFFICIENT OF FRICTION (AVERAGE) E 500E. Sort plastic materials: Click the down or up arrows or column headings to sort plastic materials or material properties. UHMW. 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. 07-0. 0. Coefficient of Friction (COF) between Chain and Wearstrips 0. 1 million or higher. The dry friction from solid ice-UHMWPE interactions is still relatively low when compared to systems such as stainless steel-UHMWPE (Yousif et al. 25, which is higher than the coefficient of friction of PTFE (0. Industrial Belting on UHMW-PE . This enhanced coefficient of friction leads to better wear life of mating surface. PTFE is more slippery than UHMW (despite both having a low coefficient of friction) UHMW has far better wear properties than PTFE. The UHMWPE fender facing pad has the features of light, anti-impact, corrosion resistance, anti-ultraviolet ray, aging resistance, low friction, non-pollution. 45 – 0. TIVAR® 88 has a lower coefficient. Comparison of Dynamic Coefficient of Friction on Polished Steel. 30: Aluminum-Bronze Alloy : Steel. 59 0. 8 1 PA 6/6 PA ‐ 6 POM H. O. 060" through 12" thick). [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. Translucent, 10. 2 LOCKED-WHEEL BRAKING TESTS Coefficients of friction were determined from the VericomTM VC2000 data for each upgradeBy increasing load from 50 to 150 N, i. 3M™ UHMW-PE Film Tape 5421 is a. 12-0. Ultra High Molecular Weight. 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. 28 Coefficient of Friction, Plastics to Plastic Static 0. Polyurethane’s Coefficient of Friction is similar to that of rubber. Meanwhile, it should be noted that the oscillation of friction coefficient. HDPE has a coefficient of friction of around 0. It was found that the tribological and mechanical degradation was attributed to the damage in the molecular structure of. The coefficient of friction of aged UHMWPE specimens for different aging periods is shown in Figure 4. 70. TIVAR Oil-Filled UHMW-PE is an ultra high molecular weight polyethylene material that truly lives up to the self-lubricating description. Recommend testing. ofGAR-DUR®UHMW isclearlydemonstrated bymeasuringitslossof volume against other materials. 8. 29 - - Ball indentation hardness 35 MPa 2039 -1 Shore hardness D 64 - 868 Thermal Properties Value Unit DIN/EN/ISO Glass transition temperature - °C 537 36 Crystalline m elting point 135 °C 537 36 The results showed that the friction coefficient of UHMWPE composites increased with an increase in fiber content, and the wear resistance was highest when the fiber content was about 10 wt%. UHMW is commonly manufactured in Natural (FDA approved), black, and repro black. 2 Measurement of the Coefficient of Friction 5. 003, 0. Figure 6 shows swing friction coefficient of CoCrMo/UHMWPE contact pair under different amplitude of angles in 25% bovine serum. Acknowledgement. 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. Ultra-High molecular weight polyethylene (UHMW-PE) coatings have been gaining ground in various tribological applications because of their ease of deposition, outstanding wear resistance and low coefficient of friction. Search Search. Ff = μ N (1) where. 28 0. 40. In addition, it is abrasion, impact, and corrosion resistant and is self-lubricating. Reduces coefficient of friction in finished components by up to 80%. 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. UHMW rod comes in diameters that range from 1/2 to 12 inch, 10-feet long. 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 smooth performance. where μ s is the coefficient of static friction and N is the magnitude of the normal. To be exact, the stable values. 87 and 0. Table features and directions: View plastic materials found under a specific property group: Click on the tab of a specific property group. Low Coefficient of Friction. The coefficient of friction (COF) of UHMWPE for different aging times. 1445 respectively where as the minimum coefficients of friction for UHMWPE-1 and UHMWPE-2 are 0. The coefficient of friction of UHMWPE along an entire walking cycle using a ball-on-disc tribometer under arthrokinematics and loading conditions prescribed by ISO 14243-3:2014. It has all of the properties of high-density polyethylene (HDPE), the ability to withstand intense acids and alkalis, and a variety of organic solvents. The friction coefficient of the chain guide is small, only 0. mN). The reason is the large d ifference between the coefficient of thermal expansion of. 078 Static Coefficient of Friction for Steel on Steel. Low friction Good chemical resistance Common brands:. 2 approximately in the whole wear process, was higher than that of non-aged UHMWPE, and the friction coefficient of non-aged UHMWPE sample almost oscillated from 0. The exceptional hardness and slick. 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. The additives used also make this material static dissipative and. (1) Measurements of TI and T2 in skidding conditions enable a friction coefficient. With increasing protein concentration (above 2%), there was a trend for decreasing friction for both material combinations. Dynamic Coefficient of Friction (-) ISO 7148-2 (18) 0. UHMW-PE has a coefficient of friction of 0. ofGAR-DUR®UHMW isclearlydemonstrated bymeasuringitslossof volume against other materials. 125" x 48" x 120" Black Reprocessed UHMW Sheet. Therefore, it can be placed inside a patient without the human body reacting experiencing a negative action. Reprinted with permission from [88]. 1-0. 115 respectively. UHMWPE liners. UHMW PE, Static Control. 76 From these results, it is clear that a coefficient of static friction of . 010” up to 12” thick plate and rod from ¼” diameter to 12” diameter. 6 g and 3. UHMW. 2. will deliver for you. Moreover, a contact between layers of UHMWPE was considered in the model with a friction coefficient equal to 0. • Take one piece of wood and soak it in water—this can. 46 with increasing depth, but the static friction coefficient increases only from ∼0. Nylon, Acetal - for bearing and wear applications. 5 wt% . UHMW also replaces metal in many applications. However, UHMW will be the preferred material where greater resistance to impacts is desired. Friction coefficient versus friction time curves of the UHMWPE/HDPE and the nanocomposites with untreated CNF. 3 is it clear that for pv ≈ 0. Furthermore, UHMWPE has a low coefficient of friction and a nonstick self lubricating surface. Virgin natural UHMW has a continuous use temperature rating of 180 degrees F and coefficient of friction of . 2. UHMWPE pipes have reduced coefficient of friction, improved abrasion resistance, lower wear rates over conventional HDPE pipes such as PE100. In 25% serum, the coefficient of friction was. GAR-DUR® UHMW plasticwasassignedan abrasionratingof10; results for the other materials tested are shown in relation to thisbaseline. Features. 18 observed a positive correlation between the surface roughness of the ceramic counterface and the coefficient of friction. 19: Brass: Cast Iron . 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. It is very resistant to most chemicals, UV radiation, and micro-organisms, but doesn’t have the same creep resistance as Delrin. • Entrainment speed and slip to rolling ratio have direct effect on friction coefficient. The right polymeric compounds can thwart wear and friction problems in bearings, bushings, slides, and gears. 7 0. 1–1 N) and three values of sliding speed (4 - 12 mm/s). It could be seen that the friction coefficient of UHMWPE under dry sliding is about 0. 100 - 0. Conveyor guides; Wear pads; Contact a Dielectric Manufacturing knowledge expert to discuss the use of UHMW polyethylene for fabrication of your plastic parts. Size: Customized Cut to Size. 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. UHMW is known for its excellent impact resistance and chemical resistance, while Delrin is known for its high stiffness and dimensional stability. For instance, a large aluminum block has the same coefficient of friction as a small aluminum block. The Food and Drug Administration has approved natural virgin UHMW for use in the food. If, at that stage, the tight-side and slack-side belt tension forces are 7"1 and T2 and the coefficient of friction/x between the belt and pulley is assumed to be constant round the arc of contact of a radians equilibrium considerations lead to lne(Ti/T2) = I. The more inter-yarn friction can be. 8 g. Outstanding impact strength, even at low temperatures. PTFE can only handle about 1/5th the load of UHMW. Keywords: UHMWPE, Dynamic friction coefficient, Reciprocating sliding. UHMW Polyethylene. The coefficient of friction of aged UHMWPE specimens for different aging periods is shown in Figure 4. 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. UHMW has surface and chemical properties that are rare to find in high-performance polymers. This tape features a unique combination of properties that make it ideal for many tough impact wear or sliding applications. The coefficient of friction of UHMWPE primarily depends on surface texture of harder material surfaces. 121 and 0. mg cos θ. UHMW is known for its excellent impact and chemical resistance,. observed a similar correlation on UHMWPE and suggested that the increase in coefficient of friction with decreased crystallinity could be due to the decreased storage modulus caused by the decreased crystallinity [20]. 42, respectively, which were all lower than that of UHMWPE. 10 - 0. Why industrial engineers prefer Polystone ® M: • low coefficient of friction • excellent abrasion. In stock. 0 m/s, contact. 2 0. UHMW (excluding reprocessed UHMW) has been approved by the Food and Drug. Aluminum: 1. Request a Quote. Low-Friction UHMW Tape Shapes. UHMWPE wear-resistant guide wheels are made of UHMWPE material, which has an extremely low coefficient of friction and excellent sliding properties. 5. 1 and specific wear-rate of 6. Oxidative polymerization of pyrrole to deposit PPy is another coating approach for UHMWPE surface modifications. 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. 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. Polystone® M UHMW is a tough, wear resistant plastic that combines an incredibly low coefficient of friction with outstanding impact strength. 9 MPa. 200,. 08 – 0. More economical that PTFE tapes. 8Mpa (264psi) D648 °F 116. 4. Because of this lubrication, TIVAR® DrySlide offers a lower coefficient of friction and enhanced wear and abrasion resistance than TIVAR® 1000 UHMW-PE. Due to an extremely low coefficient of friction, its inherent lubricity minimizes heat-generating friction that tends to. This is important when it’s used as a guide or wear ring or in a sealing application where the stick-slip. 05 N/mm2, v= 0. From Fig. 40 . " BTW, acetal is the generic name for Delrin. UHMW machining produces parts with exceptional abrasion and impact resistance suitable for a wide range of applications. 1. (SCF) improved the wear resistance and also reduced the coefficient of friction up to an optimum concentration of 20 vol. 13 to ∼0. When there is no motion between the objects, the magnitude of static friction f s is. 13, 0. 4. . Under laboratory conditions, however, it. UHMW has surface and chemical properties that are rare to find in high-performance polymers. Dec 14, 2021; Replies 8 Views 2K. 51, and 0. Nonstick surface. 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%. Nolu-S has a better thermal conduc - tivity compared to standard UHMW. Download scientific diagram | Coefficient of friction as a function of contact pressure from publication: Effect of Stick -Slip Phenomena between Human Skin and UHMW Polyethylene | The present. Redco™ DEADPLATE Absorbs energy to eliminate bounce back and vibration. The coefficient of friction and wear of the UHMWPE pins were determined by means of a pin-on-disc tribometer under lubricated sliding conditions. The table below shows an average static Coeffcient of Friction for most material on material, with and without lubrication. UHMW is often used in the manufacturing of food processing equipment, conveyor systems, medical devices, and other industrial. 30 0. 8 shows the variation of friction coefficient of pure UHMWPE, MC- modified, AF-modified and AF/MC-modified composites at 0. 0. 1. The initial friction coefficient of UHMWPE/Al 2 O 3 friction pair in dry friction, saline and distilled water lubrication conditions is higher and quite identical, and in plasma lubrication condition, the initial friction coefficient is the lowest. 25 : 0. The coefficient of friction between two materials in relative sliding may depend on contact pressure, surface roughness of the relative harder contact surface, temperature, sliding velocity and the type of lubricant whether the level of contamination. The coefficient of friction is not a function of mass or volume. 15. 4, which was. ATIVAR® UHMW-PE sets the standard for engineered polymers with a unique combination of wear and corrosion resistance, low friction surface and impact strength. Suitable for machining and fabrication. 14 : Sand Wheel Wear/Abrasion Test: 95: UHMW=100: Coefficient of Linear Thermal Expansion: 11. 5 µm, the coefficient of friction statistically significant increases when. 20 static, . Reduces maintenance and downtime in high-precision applications. 75 Average 37. La. This machinable thermoplastic is well known for its extreme toughness, outstanding abrasion resistance, and extremely low coefficient of friction. 0 /5 · 0 reviews ·TapeCase UHMW Polyolefin Film Tape 2302-10, is a natural colored 11. 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. After the steady state of friction, the friction coefficient in dry sliding is the highest, that. Relative speed was manifested for SRR 1. 07 and became more stable during the. The friction coefficient of pure UHMWPE is approximately 0. PTFE is more slippery than UHMW (despite both having a low coefficient of friction) UHMW has far better wear properties than PTFE. 1 (on average, which is low). They are fixed to the panel generally with stainless steel studs that are welded to the skin of the steel panel. 06. 14. The current study found that adding 10% recycled silicon to PEEK decreased the rate of wear to 0. The material has a low surface resistance of 10⁶ to 10⁹ Ω/sq. Abrasive wear. First, the bulk material is biocompatible. Concrete (Dry) Rubber. 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 . T 1! %M 1 g " M 1 a , !1" M 2 g ! T 2" M 2 a , !2" where T 1 and T 2 are the string tensions, a is the acceleration of M 1 and M 2, and % is the COF . 05. Date：2021-01-11. A subset of the thermoplastic polyethylene, UHMW (aka UHMWPE) is characterized as one of the miracle polymers of the 20th century. In stock. 28 0. The extraordinary durability and versatility of UHMW-PE is used by designers and engineers in many industries worldwide. Research Acetal material properties, uses and specs at Curbell Plastics, get a quote, or ask a plastics expert. GAR-DUR® UHMW plasticwasassignedan abrasionratingof10; results for the other materials tested are shown in relation to thisbaseline. 2 The friction and wear behavior of ultra-high molecular weight polyethylene (UHMWPE) sliding against GCr15 steel and electroless Ni-P alloy coating under the lubrication of seawater was investigated and compared with that under dry sliding and lubrication of pure water and 3. The chain's coefficient of friction differs by type of chain, by material, and by type of roller; it is shown in the manufacturer's catalog. 20 - 0. One of its defining characteristics is its toughness and high impact strength; this is due to long polymer chains with a molecular. The coefficient of friction is an important tribological property of polymer materials. The next ASTM meeting of the UHMWPE working group will be in May, 2013. The exceptional hardness and slick surface is ideal for maintaining a gliding. Wear coefficient of UHMWPE as function of pv for friction pairs with steels of different grades: 45 steel (⚪); 18X2H4MA steel. Its coefficient of friction is significantly lower than that of acetal. ‐lb/inch of notch ‐Higher is better) 0 0. •Tivar ® HPV is a dry-running sliding material designed to enhance motion and reduce friction among conveying systems and bearings. RE: friction coefficient of UHMW and HDPE kjoiner (Mechanical) (OP) 1 Nov 02 15:33. Because there are so many influencing factors that are not mutually independent, it is not possible to quote exact values for the coefficient of friction. 15-. 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. 96% for 720 h aging time and 80 °C aging temperature. Ultra High Molecular Weight polyethylene (UHMW-PE) is an engineering thermoplastic with a molecular weight of greater than 3. However, the material also needs to have a silicone free. Both materials have a lower friction coefficient than many metals, such as stainless steel. 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. 12: against self - dynamic: 40 psi/50fpm : 0. 05), UHMWPE is able to reach a somewhat respectable 0. Select options; Delrin® – High Strength Black Homopolymer Acetal SheetUHMW PE, Glass Filled. 25 and higher where its increase caused a decrease in. Because of its high melt viscosity, conventional. FMorin (Mechanical) (OP) 12 Feb 05 13:57. Learn more at Curbell Plastics. The friction coefficient of the chain guide is small, only 0. The coefficient of friction is a number that describes the interactions between the surfaces, it is not a force. Generally, the UHMWPE panel set in front of the steel panel. 930g/cm³. Results from tests showed that the yarn–yarn coefficient of static friction (CSF) has been improved from 0. Aug 19, 2022; Replies 9 Views 693. Introduction. 1. (UHMW-PE): Designed for performance. It was found that under the lubrication of aqueous medium, the friction and wear. Download scientific diagram | Coefficients of friction of various UHMWPE materials. This Ultra High Molecular Weight (UHMW) Polyethylene will outwear all other materials, including metals, nylons, urethanes, and fluoroplastics. It is also very resistant to moisture, most chemicals, UV radiation, and micro-organisms. Low friction. 4 –0. tl;dr: the CoF for printed ABS was moderately higher than for PLA (by 50-70%), depending on the test conditions. When considering the use of UHMWPE in total-joint replacement, there are several advantages. Protect small parts with these slippery UHMW rings, discs, and squares. UHMW coefficient of friction is significantly better than nylon and acetal and is virtually the same as Teflon® but has superior abrasion resistance. UHMW also replaces metal in many applications. 125 Uhmw Black Round Uhmw Strip Uhmw 1/2 Uhmw Plastic Polyethylene Sheet Uhmw Black Uhmw Polyethylene Uhmw Tube Uhmw 48. PTFE is significantly more expensive than UHMW. 76 0. Micrographs on the friction surface of (a) the UHMWPE/HDPE and (b) nanocomposites with 3. It was found that. Reprocessed UHMW-PE offers all the same benefits of standard UHMW-PE sheets but at a much more cost-effective price. Tivar® HPV – Bearing Grade Ultra-Low Friction UHMW Sheet $ 722. 61-Brake (Composite) Cast Iron. 07, 0. It is also observed that UHMWPE-1 and UHMWPE-2 specimens corresponding to 280 °C has minimum. 4 MPa m/s and pv ≈ 1. The low coefficient of friction also gives UHMW excellent release properties, preventing buildups and bottlenecking on conveyor lines moving food products or other potentially-sticky substances. 8 1 PA 6/6 PA ‐ 6 POM H ‐ C PET ‐ The coefficient of friction is an important tribological property of polymer materials. 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). 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. 2 to 2. 5 10-4: UHMW Electrical Properties. CTE, linear D696 in/in°F 1. Evolution of the friction coefficient of the UHMWPE and UHMWPE-g-AA samples under seawater lubrication with a load of 50 N. UHMWPE. Suitable for machining and fabrication. This is a rough guide - as others have mentioned, it will vary a lot depending on the specific filament, geometry, etc. A system in which f k = μ k N is described as a system in which friction behaves simply. Those both had about 2-3x the CoF of traditionally-constructed UHMWPE samples. 09 and also showed an excellent wear life of 250,000 cycles at a load of 7 N and a speed of 0. Interstate Plastics provides many grades of UHMW-PE (ultra high molecular weight polyethylene) for a variety of wear, friction, and high-impact related applications from guard rails and wear strips to power. Although UHMW has around 12x the coefficient of thermal expansion of steel, because.