GUR PE-UHMW. Micropowder GUR Micropowders as Additives. Micropowder GUR Micropowders as Additives

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2 GUR PE-UHMW Micropowder GUR Micropowders as Additives GUR is the trademark of Ultra-High Molecular Weight Polyethylene (PE-UHMW) products produced by Celanese. GUR Micropowders product line has an average molecular weight, measured by a viscosimetric method, in the range of 3.9 to 10.5 million g/mol. GUR Micropowders have a melting point of C. In the molten state, because of their very high viscosity, they exhibit a rubber-elastic behavior and therefore remarkably maintain their particle shape and morphology. This thermalrheometric property is very important for GUR additive applications. GUR Micropowders are manufactured with 20, 30 and 60 microns which are ideal for many additive applications. Some of the typical property improvements which may be achieved with these products in other material matrices are: Scratch resistance Surface effects Impact strength Abrasion resistance Energy absorption at high speed impact Mechanical and dimensional thermostability registered trademark 2

3 Regular Particle Morphology Special Particle Morphology This SEM picture shows a very regular shape with an excellent binding surface for many materials. This material has an average particle size of 60 microns. Unique particle morphology, high surface area and extremely fine average particle size of 20 or 30 microns allow excellent dispersion of this product and helps phase binding with other materials. Typical particle size distribution: Laser light scattering method 20 µm-product 30 µm-product 60 µm-product Q3(x) [%] Particle size [mm] Q3(x) [%] Particle size [mm] Q3(x) [%] Partikelgröße [mm] Possible fields of applications and functions: Additive in Paints Additive in Technical Rubbers Additive in Coatings Filler in Other Plastics Filler in Sealants Filler in Polishing Compounds Improved finishing texture, wear resistance, gloss reduction and abrasion resistance Good matting agent Improved thermal and mechanical behavior Improved abrasion resistance Permanent texturing agent Improved gliding properties and abrasion resistance Texturing agent forspecial surface effects Anti-slip agent Reduced cohesive forces Reduced cohesive forces 3

4 Typical Physical Properties Properties Unit Test-Method 20 µm-product 30 µm-product 60 µm-product Density g/cm 3 ISO ,95 0,93 0,93 Method A Viscosity numberl (VN) mg/l ISO Part 3 Bulk density g/cm 3 ISO 60 0,33 0,26 0,45 Mechanical properties measured under standard conditions Charpy notched kj/m 2 ISO >120 >120 impact strentgh Part 2 Thermal properties Melting point C ISO Particle size distribution D10 µm Laser light scattering D50 µm Laser light scattering D90 µm Laser light scattering Chemical Properties: GUR Micropowders, like other polyethylenes, possess very good resistance to aggressive media, with the exception of strong oxidizing acids. Aromatic and halogenated hydrocarbons (e.g. decahydronaphthalene) which dissolvelower molecular weight polyethylenes only cause partial swelling in GUR Micropowders. Dosage: Normal concentration of GUR Micropowders as additives may vary between 3% to 10% by weight depending on the specific application field and expected modification results. The material can be dispersed with conventional mixing equipment. The good thermal stability of GUR Micropowders allow high intensity mixing with minimumparticle deformation. Flammability: Polyethylene ignites in contact with flame, burn-ing with a faintly luminous flame. It continues toburn when the flame is removed and melts withburning drips. Packaging: GUR (Bulk density g/cm 3 ): 25kg bags GUR (Bulk density g/cm 3 ): 12.5kg bags Storage: It is recommended that GUR Products be stored dry at room temperature. Material Safety Data Sheets with additional informationare available 4

5 GUR Micropowder Application Example: Mat paint The SEM picture shows good binding of the structure body of 60µm-product with the paint layer (Layer thickness 80 microns). Application Advantages: Excellent scratch and abrasion resistance Improved mechanical properties in a material matrix material, e.g. increase of notched impact strength and abrasion resistance Improved dynamic coefficientof friction (sliding and abrasion properties) Good binding and phase connection due to the excellent particle morphology characteristics Increased dimensional stability at elevated temperatures and high elasticity, with the result of no significant deformation after mechanical load Surface texturing from the unique morphology of GUR Micropowders Improved in porous structures dampening behavior Improved chemical resistance Reduced water and moisture absorption Broad application temperature range (between -265 C and 90 C depending upon mechanical load) 5

6 ENGINEERED MATERIALS celanese.com/engineered-materials Engineered Materials Contact Information Celanex thermoplastic polyester (PBT) Americas 8040 Dixie Highway, Florence, KY USA Hostaform and Celcon acetal copolymer (POM) Celstran, Compel and Factor long fiber reinforced thermoplastic (LFRT) Celstran continuous fiber reinforced thermoplastic (CFR-TP) Fortron polyphenylene sulfide (PPS) GUR ultra-high molecular weight polyethylene (UHMW-PE) Impet thermoplastic polyester (PET) Product Information Service t: t: Customer Service t: t: e: Europe Am Unisys-Park 1, Sulzbach, Germany Product Information Service t: +(00) t: +49-(0) e: Riteflex thermoplastic polyester elastomer (TPC-ET) Thermx polycyclohexylene-dimethylene terephthalate (PCT) Vandar thermoplastic polyester alloy (PBT) Vectra and Zenite liquid crystal polymer (LCP) Asia 4560 Jinke Road, Zhang Jiang Hi Tech Park Shanghai PRC Customer Service t: f: e: Copyright 2013 Celanese or its affiliates. All rights reserved. This publication was printed on 19 September 2013 based on Celanese s present state of knowledge, and Celanese undertakes no obligation to update it. Because conditions of product use are outside Celanese s control, Celanese makes no warranties, express or implied, and assumes no liability in connection with any use of this information. Nothing herein is intended as a license to operate under or a recommendation to infringe any patents. GUR-007 (B315EPRr3)_GUR-007_UHMWPEMicroProdInfoBro_AM_0913