Compounds | engineering plastics
conductive compounds is more cost-effective than treating parts after moulding, when levels of scrap can be much higher. While masterbatches containing stainless steel fi bres are available, Bernhard says many processors prefer to use compounds in order to ensure optimal dispersion of the fi bres in the part. The Alcom EC compounds contain 6mm fi bres, with fi bre length largely retained in fi nal parts due to their fl exibility. The company also offers the Alcom T-Conductive grades, which are based on polyamide 6 and 66 and achieve a thermal conductivity up to 8 W/mK (integral) und 15 W/mK (in-plane). Some grades are also electrically conductive. Available on the market for around two years now, applications include LED lighting refl ectors and housings providing thermal manage- ment. Bernhard also highlights the easy-fl ow (MFI 35 under 1.2 kg) polycarbonate-based Alcom LB light blocking materials that yield parts giving up to 96% diffuse refl ection in applications including LED lighting. Nilit Plastics, one of the world’s largest polyamide
compounders, was highlighting its expertise in developing innovative solutions for electrical & electronics applications, automotive and consumer durables at Fakuma. It says that following the introduc- tion in 2014 of the Frianyl XT series of polyphthalamide- based high performance compounds, one key grade – Frianyl XT4 GF30 V0I - has now obtained a V-0 rating under the UL 94 fl ammability standard for thicknesses down to 0.4 mm and for all colours. Arno Wolf, Vice President for Sales at Nilit Plastics
Europe, says this means customers have full freedom to colour-code and colour-brand their applications using the new PPA compound. “This listing will now
Comparison of shielding effectiveness in parts made from compounds and masterbatches
Source: Albis
allow our customers to apply Frianyl XT4 GF30 V0I compounds in an even broader spectrum of applications in the electronics industry, where the mechanical and electrical performance of miniaturised parts has to withstand elevated temperatures,” he says. Nilit Plastics is active in the white goods industry as
well. Two Nilamid compounds, both based on polyamide 66 reinforced with 30% glass fi bre, have recently obtained independent certifi cation from authorities in the UK and in Germany for use in products for washing machines, dishwashers and the like that come into contact with drinking water. “These new certifi cations will be valuable for our
customers in obtaining approvals for their products from major OEMs in the white goods industry,” says Wolf. “By having the quality of our materials indepen-
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