Polypropylene Technical Document

SIMONA®PP-DWU AlphaPlusAdded value in chemical equipment and tank engineering2 SIMONA®PP-DWU AlphaPlus 09/2007In developing SIMONA® PP-DWU AlphaPlus, we have successfully transferred the outstanding prop-erties associated with SIMONA® PP-H AlphaPlus pipes to the product segment of extruded sheets. Thus, companies operat-ing within the field of chemical equipment and tank engineer-ing now have at their disposal a homopolymeric polypropylene (PP-H) that opens up a host of new opportunities for production at industrial level. Whereas the various types of polypropylene used until recently had their indi-vidual material-related strengths and weaknesses, PP-DWU AlphaPlus delivers uncompromis-ing functionality.SIMONA® PP-DWU AlphaPlus combines all the key strengths known from other materials:? Finer and more stable alpha-crystalline structure? Superior notched impact strength and enhanced rigidity? Excellent welding properties ? Longer service life? Improved chemical resistance and superior stress crack resistanceFiner and more stable alpha-crystalline structureBy adjusting key elements within the area of process engineer-ing and incorporating special nucleating agents, SIMONA has SIMONA® PP-DWU AlphaPlus – Added value in chemical equipment and tank engineeringPhotographs of PP-H types taken under an optical microscope PP-H, non-nucleated PP-H, mildly a-nucleatedPP-H, ß-nucleated SIMONA® PP-DWU AlphaPlusbeen able to develop a PP-H with a-crystalline properties – SIMONA® PP-DWU AlphaPlus. It offers a range of benefits even under extremely difficult process-ing conditions. Next-generation sheets made of SIMONA® PP-DWU AlphaPlus are a tribute to our research and develop-ment activities on the basis of SIMONA® PP-DWU sheets, which have an extensive track record within the field of chemical tank and equipment engineering. As well as delivering added value to customers, SIMONA® PP-DWU AlphaPlus sets new standards within this segment of the market.100 µm09/2007 SIMONA®PP-DWU AlphaPlus 3Superior notched impact strength and enhanced rigidity SIMONA® PP-DWU AlphaPlus offers users considerably improved rigidity, in addition to increased toughness. In fact, the level of rigidity measured at 100 °C is twice as high as that of ß-nucleated PP. At low temperatures, in particu-lar, SIMONA® PP-DWU AlphaPlus displays higher impact resistance than standard PP-H, thus com-bining greater functionality with improved safety.Modulus of elasticity in various types of PP(single measurement on pressed sheets)Notched impact strength according to Charpy methodTensile modulus of elasticity in MPaStandard PP-HSIMONA®PP-DWU AlphaPlusß-nucleated PP-H200018001600140012001000800600400200020 40 60 80 100Notched impact strength in kJ/m2Standard PP-HSIMONA®PP-DWU AlphaPlusß-nucleated PP-H1412108642023 °C 10 °C 0 °C -10 °C4 SIMONA®PP-DWU AlphaPlus 09/2007SIMONA®PP-DWU AlphaPlus –Outstanding material propertiesSIMONA® PP-DWU AlphaPlus in bend test according to DVS 2203-5Excellent welding propertiesThe various welding methods applied within the area of plas-tics processing can often result in changes to the morphology of a specific material. This has a significant impact on the proper-ties of welded joints and thus also on the overall quality of plas-tic parts and assemblies, particu-larly in the case of polypropylene. A prime example is heated-tool butt welding, which generally pro-duces welding beads in the joint zone. In this case, a notch is formed in the area of the weld seam, potentially causing stress concentration under increasing mechanical loads. In turn, stress concentration in the notch root of a weld seam can induce stress cracks under tensile load-ing or when exposed to chemi-cals. The ultra-fine structure of SIMONA® PP-DWU AlphaPlus is thermodynamically stable and remains intact during welding; this feature applies to a range of different welding methods. The thus resulting toughness signifi-cantly reduces the level of stress concentration in the notch root. Technological bend tests have shown a considerable increase in the bend angle achievable with this material.09/2007 SIMONA®PP-DWU AlphaPlus 5Longer service lifeThe superior safety properties of SIMONA® PP-DWU AlphaPlus are reflected in its higher resistance to slow crack growth – as dem-onstrated by means of full-notch creep testing (FNCT). Compared to a mildly a-nucleated standard PP-H with a useful life of between 700 and 800 hours, SIMONA® PP-DWU AlphaPlus is capable of achieving a service life of more than 1500 hours. In contrast, ß-nucleated PP-H is usually asso-ciated with a maximum life of 700 hours.surface is much less susceptible to chemical attack. This results in a longer service life and greater operational reliability. Again, one of the key factors is the fine and highly stable crystalline structure associated with SIMONA® PP-DWU AlphaPlus, which helps to reduce material-related stress. Within this context, resistance to stress-crack-inducing chemicals is particularly high in critical regions such as weld seams or anchor points, which are subjected to internal stress or stress from external sources.These benefits are also demon-strated as part of creep-depend-ing-on-time tests under internal compression. At 95 °C and a pressure/stress of 4.4 MPa, the useful life of SIMONA®PP-DWU AlphaPlus was in excess of 3000 hours. This represents a signifi-cant increase compared with the minimum requirement of 100 hours specified by DIN 8078.Improved chemical resistance and superior stress crack resistanceThe fine morphology and increased toughness of SIMONA® PP-DWU AlphaPlus also have a positive effect on its chemical resistance. Alongside improved welding prop-erties, tests have shown that the Service life of various types of PP in FNCT (Full-Notch Creep Test)at 80 °C and 4.0 MPa1500140013001200110010009008007006005004003002001000Service life in hStandardPP-H 100SIMONA®PP-DWUAlphaPlusß-nucleatedPP-H 1006 SIMONA®PP-DWU AlphaPlus 09/2007Your benefits at a glance? Next generation of proven SIMONA® PP-DWU? Significantly improved welding properties? Superior notched impact strength and enhanced rigidityKey benefits? Improved chemical resistance and superior stress crack resistance ? Longer service life? Excellent processing proper-ties? Additional safety reserves even for critical applications? Excellent value and highly cost-effectiveProcessing versatilitySIMONA® PP-DWU AlphaPlus can be processed using various methods.For specific details, please feel free to contact our Technical Service Centre:Phone +49 (0) 67 52 14-587Fax +49 (0) 67 52 14-302tsc@simona.de09/2007 SIMONA®PP-DWU AlphaPlus 7Material specifications/Product rangeSIMONA® PP-DWU AlphaPlusProduct range (data in mm) PP-DWU AlphaPlus PP-DWU-SK AlphaPlus PP-DWU-GK AlphaPlus (polyester-backed) (glass-fibre-backed)Extruded sheets (size/thickness) 2000 x 1000 0.8 – 50 2 – 8 2 – 8 3000 x 1500 1.5 – 40 2 – 8 2 – 8 4000 x 2000 0,2 – 50 20000 x 1500 2 – 6 2 – 6 Colours grey grey grey Welding rods Types Thickness 3 – 7 Colours grey Properties Test standard Unit SIMONA®PP-DWU AlphaPlusMechanical properties Density ISO 1183 g/cm3 0.915Tensile test DIN EN ISO 527Yield stress MPa 33Elongation at yield % 8Elongation at break % 70Tensile modulus of elasticity MPa 1700Impact bending test DIN EN ISO 179 Impact strength kJ/m2 no break Notched impact strength kJ/m2 9Surface hardness Ball indentation hardness DIN EN ISO 2039-1 MPa 70Shore hardness DIN EN ISO 868 D 72Thermal properties Mean coefficient DIN 53752 K–1 1.6 · 10–4of linear thermal expansion Thermal conductivity DIN 52612 W/m · K 0.22Electrical properties Dielectric strength DIN IEC 60167 kV/mm 52Surface resistivity IEC 60093 Ohm 1014Other properties Fire behaviour DIN 4102 normal flammability Temperature range ° C 0 to + 100Physiologically safe BfR yesChemical resistance excellent in contact with various acids, alkalis and solvents8 SIMONA®PP-DWU AlphaPlus 09/2007K+D 09/2007 - 1000 - KD - GB Printed on Allegro demi-matt by m-real.SIMONA worldwideSIMONA S.A. ParisZ.I. 1, rue du Plant LogerF -95335 Domont CedexPhone +33 (0) 1 39 35 4949Fax +33 (0) 1 39 910558domont@simona-fr.comSIMONA S.A. LyonZ.I. du Chanay2, rue Marius BerlietF -69720 Saint-Bonnet-de-MurePhone +33 (0) 4 78 40 70 71Fax +33 (0) 4 78 40 83 21lyon@simona-fr.comSIMONA S.A. AngersZ.I. 20, Bld. de l’IndustrieF -49000 EcouflantPhone +33 (0) 2 41370737Fax +33 (0) 2 41608012angers@simona-fr.comSIMONA UK LIMITEDTelford DriveBrookmead Industrial ParkGB-Stafford ST16 3STPhone +44 (0) 1785 222444Fax +44 (0) 1785 222080mail@simona-uk.comSIMONA AG SCHWEIZIndustriezoneBäumlimattstrasseCH-4313 MöhlinPhone +41 (0) 61 8 55 9070Fax +41 (0) 61 8 55 9075mail@simona-ch.comSIMONA S.r.l. ITALIAVia Padana Superiore 19/BI -20090 Vimodrone (MI)Phone +39 02 25 08 51Fax +39 02 25 08 520mail@simona-it.comSIMONA IBERICA SEMIELABORADOS S.L.Doctor Josep Castells, 26–30Polígono Industrial FonollarE-08830 Sant Boi de Llobregat Phone +34 93 635 4103Fax +34 93 630 88 90mail@simona-es.comSIMONA-PLASTICS CZ, s.r.o.Zde?bradská ul. 70CZ-25101 R?íc?any-Jaz?lovicePhone +420 323 6378 3-7/-8/-9Fax +420 323 6378 48mail@simona-plastics.czwww.simona-plastics.czSIMONA POLSKA Sp. z o.o.ul. H. Kamien´skiego 201–219PL-51-126 WroclawPhone +48 (0) 71 3 52 80 20Fax +48 (0) 71 3 52 8140mail@simona.plwww.simona.plSIMONA FAR EAST LIMITEDRoom 501, 5/FCCT Telecom Building11 Wo Shing StreetFo TanHongkongPhone +852 29 47 01 93Fax +852 29 47 01 98sales@simona.com.hkSIMONA AMERICA Inc.64 N. Conahan DriveHazleton, PA 18201USAPhone +1 866 501 2992Fax +1 800 522 4857mail@simona-america.comwww.simona-america.comSIMONA AGTeichweg 16D-55606 KirnPhone +49 (0) 67 52 14-0Fax +49 (0) 67 52 14-211mail@simona.dewww.simona.dePlant I/IITeichweg 16D-55606 KirnPhone +49 (0) 67 52 14-0Fax +49 (0) 67 52 14-211Plant IIIGewerbestraße 1–2D-77975 RingsheimPhone +49 (0) 7822 436-0Fax +49 (0) 7822 436-124Plant VWürdinghauser Str. 53D-57399 KirchhundemPhone +49 (0) 27 23 772-0Fax +49 (0) 27 23 772-266