ENGINEERING THERMOPLASTICS | MATERIALS
Lamberts in Product Management at the company says that since then, various modifications have been made to the production process and the product, so today it is a lot different. It still contains glass fibres though (35% or 50% at the moment, but there will be other versions coming out later). The new Grivory G5V is for applications at
temperatures of up to 100 °C. Modulus of elasticity in a conditioned state at 80°C is 45 % higher than the company’s well-established Grivory GV (PA66+PA6I/X), while creep resistance is 35% higher. Lanxess is expanding its range of halogen-free, flame-retardant, glass-fibre-reinforced PA 6 compounds to include Durethan BKV30FN01 and Durethan BKV30FN04 DUS064. Both products are designed for use in thick-walled compo- nents with specially optimised requirements regarding fire resistance. Potential applications include power tools, household appliances and industrial equipment. “These structural materials also offer outstanding potential in the field of electro- mobility and its periphery – for components such as thick-walled battery covers or charging plugs and the associated connector holders,” says Alexander Radeck, an expert in flame-retardant plastics at Lanxess. The new products are derived from Durethan BKV30FN04, which is already widely used in flame-retardant components. This compound achieves a UL 94 V-0 rating at 0.4mm. Many components requiring a high degree of flame resistance, however, are much thicker than 0.4mm, so they can be made using compounds containing less flame retardant while still obtaining sufficient fire resistance. Durethan BKV30FN01 and Durethan BKV30FN04 DUS064 are specially designed for components with wall thicknesses of 0.75 - 1.5mm and more. They have a V-0 classification with 0.75mm and 1.5mm respectively. Radeck says the specially optimised flame-retardant package provides very good processability during injection moulding. “They also ensure high-quality surfaces, even with large, planar component geometries,” he says. Lanxess is planning to expand the Durethan BKV
FN range to include exceptionally easy-flow variants for thick-walled components. Evonik is expanding its portfolio of PA 12 compounds for insulating electrical conductors,
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with Vestamid LX9050 OR, which is suitable for extrusion and injection moulding. It contains a halogen-free flame retardant system to achieve a UL94 V-0 rating and is coloured orange (RAL 2003). The new grade was developed especially for e-mobility and “offers the possibility of making energy management in electric vehicles even more efficient and, above all, significantly safer,” says Eckart Ruban, who is responsible for e-mo- bility in Evonik’s High Performance Polymers Business Unit. In recent years, several standard requirements have been issued for many industries with high security risks. For exam- ple, EN 45545-2 was issued in 2013 for railway applications, and became mandatory in Europe in 2016. It sets out the
material specifications to be used in railway
vehicles to protect them against
fire in accordance with the test methods and criteria specified in the standard, depending on the place of use.
Compounder Eurotec has recently been developing and certifying many tailor-made products to meet the increasing high safety requirements in the transportation industry. It has developed products with PA 6 and PA 66 fire resistance grades to meet the demanding require- ments for application classes R22-R23 in accord- ance with EN 45545-2. Tecomid products can be safely used in electrical and electronic applications for railway vehicles, such as insulators, switches, relays and connectors. Eurotec says it continues to develop products to
offer proper solutions to the more demanding requirements of technical applications needed for the railway industry.
CLICK ON THE LINKS FOR MORE INFORMATION: �
www.dsm.com �
www.dupont.com �
www.avient.com �
www.sabic.com �
www.lehvoss.de �
www.domochemicals.com �
www.ascendmaterials.com �
www.basf.com �
www.emsgrivory.com �
https://lanxess.com �
https://corporate.evonik.com �
www.eurotec-ep.com
November/December 2021 | INJECTION WORLD 23
Left: Durethan BKV30FN01 and
BKV30FN04 DUS064 were developed for components like thick- walled battery covers or charging plugs and the associated connector holders
IMAGE: LANXESS
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