MATERIALS | HIGH-TEMPERATURE PLASTICS


Comparison of Eurotec’s high-heat thermoplastics Properties


Glass Transition Temperature (Tg) Melting Temperature (Tm)


Continuous Service Temperature HDT (1.80 MPa)


Properties Density


Moisure Absorption Yield Strength Tensile Modulus


Izod Impact, notched (23˚C) 60


265 140 70


Unit Tecomid (PA6.6) Tecomid HT (PPA) PPS (Lineer) Tecopeek (PEEK) Tecotek (PEI) ˚C ˚C ˚C ˚C


125 315 180 125


90 280


210-230 95-110


143 343 260 152


217 –


170 200


Unit Tecomid (PA6.6) Tecomid HT (PPA) PPS (Lineer) Tecopeek (PEEK) Tecotek (PEI) g/cm3 %


MPa MPa


kJ/m2


1.14 2.7 85


3,200 5


1.2 2.4 90


3,500 7


These advantages have to be weighed up against factors such as less-than-ideal impact resistance in the unmodified state, and the frequent need to use oil heated injection moulds, he notes. Moving further up the performance pyramid, at compounder Lehmann & Voss, Thomas Collet, the company’s Marketing Director for Customised Polymer Materials, points to a line based on polyetherketoneketone (PEKK, not to be confused with PEEK polyetheretherketone), Luvocom 1114. He highlights several features, including “unique” tribological properties, stable coefficients of friction over temperature, stable and only moder- ately increasing wear under temperature, high strengths achievable under heat (the Tg of PEKK is 165°C), and the company’s ability to tailor-make compounds.


“Using the high-performance polymer PEKK as a base, we are developing and producing com-


1.35 0.05 90


3,800 3


1.3


0.45 100


3,700 6


1.27 0.7


110


3,200 6


pounds for applications with outstanding tribologi- cal and mechanical requirements,” says Collett. “The unmodified polymer alone exhibits good wear characteristics. Trials even record negative values for initial wear as well as favourable wear patterns with low ranges of fluctuation.” According to Collett, PEKK compounds that


have already been developed display improved tribological behaviour over PEEK compounds with the same formulation. “This has been confirmed under different test conditions, for example with different mating materials and at elevated tempera- tures,” he says. The argument over PEKK vs PEEK is not cut and dried however. Rival compounder Akro-Plastic has just introduced Akrotek PTFE-modified PEEK tribological grades. It says it can now offer the market “a material performing in injection mould- ing tools with less delamination in the gating area


Media information 2018


The global digital magazine and apps for injection moulders


Injection World is the monthly magazine providing business, industry and technology news for injection moulders, mould makers and product designers around the globe. It is accessed by thousands of readers every month free-of-charge online, on tablets, smartphones, and via our free apps for the iPad, iPhone and Android devices.


Injection World delivers relevant and up-to-date information on the most important technical developments, market trends, business news, design innovations and legislative announcements. And, unlike other general plastics magazines, it is 100% focused on the specific information needs of designers and producers of plastic mouldings.


Published by our expert editorial team at AMI – the leading provider of databases, market intelligence and conferences for the global plastics processing industries – Injection World benefits from access to our detailed databases of senior decision makers at injection moulding sites across Europe, the Americas, Asia and the Middle East. These global databases include key purchasers of injection moulding machines, moulds, ancillary equipment, polymers, additives and related services.


Looking to access this market? Our advertisements are very competitively priced and include links directly to your website. If you are selling machinery, ancillary equipment, materials, additives or services to the injection moulding industry, then Injection World is the vehicle to promote your business globally.


Media information 2018


Injection World offers: 4 Comprehensive global coverage 4 100% focused on injection moulding 4 In-depth market knowledge 4 Free access online and via apps 4 Highly competitive advertisement rates 4 Live weblinks from all advertisements 4 App viewable without internet connection


Visit www.injectionworld.com to see the latest issue and take out a free subscription


The global digital magazine and apps for injection moulders


Injection World is the monthly magazine providing business, industry and technology news for injection moulders, mould makers and product designers around the globe. It is accessed by thousands of readers every month free-of-charge online, on tablets, smartphones, and via our free apps for the iPad, iPhone and Android devices.


Injection World delivers relevant and up-to-date information on the most important technical developments, market trends, business news, design innovations and legislative announcements. And, unlike other general plastics magazines, it is 100% focused on the specific information needs of designers and producers of plastic mouldings.


For more information about advertising in Injection World, contact:


Levent Tounjer:


levent.tounjer@ami.international or Claire Bishop:


claire.bishop@ami.international


Published by our expert editorial team at AMI – the leading provider of databases, market intelligence and conferences for the global plastics processing industries – Injection World benefits from access to our detailed databases of senior decision makers at injection moulding sites across Europe, the Americas, Asia and the Middle East. These global databases include key purchasers of injection moulding machines, moulds, ancillary equipment, polymers, additives and related services.


Looking to access this market? Our advertisements are very competitively priced and include links directly to your website. If you are selling machinery, ancillary equipment, materials, additives or services to the injection moulding industry, then Injection World is the vehicle to promote your business globally.


Published by:


Injection World offers: 4 Comprehensive global coverage 4 100% focused on injection moulding 4 In-depth market knowledge 4 Free access online and via apps 4 Highly competitive advertisement rates 4 Live weblinks from all advertisements 4 App viewable without internet connection


Visit www.injectionworld.com to see the latest issue and take out a free subscription


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