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LANXESS at K 2016: To Promote PBT+ASA Blend via Electric Scooter Housing Components

Published on 2016-07-11. Author : SpecialChem

COLOGNE -- In addition to being comfortable and environmentally friendly, two-wheelers with an electric drive are also ideal for getting around quickly in congested towns and cities. The new eS1, eS2, eB1 and eB2 models are the first electric bikes and scooters to be designed and developed in Italy. The colorful classics with a retro touch are manufactured by Askoll Holding srl, which is based in Dueville near Vicenza. To make housing components for the bike and scooter batteries, the company uses a material from LANXESS that will in the future be marketed under the name Pocan AF 4110.

Electric Scooter

GF-reinforced PBT+ASA Blend for E&E Applications


“The new material forms part of our comprehensive product portfolio for electric vehicles. This segment offers good growth opportunities for our Pocan polyesters and Durethan polyamides, and we’ll be systematically expanding the range in close collaboration with development partners specializing in electric mobility,” says Tim Arping, a marketing expert in LANXESS’s High Performance Materials (HPM) business unit. LANXESS will be exhibiting the eS2 two-seater electric scooter at its stand at the K 2016 plastics trade show in Düsseldorf.

Excellent Flame-retardant Properties


Electric Scooter
Electric Scooter
The new compound is a blend of PBT (polybutylene terephthalate) and ASA (acrylate styrene acrylonitrile) reinforced with 12 percent glass fibers. The highly flame-retardant material is designed for large, geometrically complex housing components in electrical and electronic applications and, because it contains ASA, it benefits from a very low tendency to warp. In fire tests in line with the U.S. test standard UL 94 (UL = Underwriters Laboratories), it achieves the best classification of V-0 with a test specimen 0.4 millimeters thick. Components made from this compound have excellent surfaces that also benefit from very low emissions proven by VDA 278 thermal desorption measurements.

Chemical Resistance, Thermal Stability and Impact Strength


Askoll uses the material for the battery cell housing of its electric scooters. It replaces a material solution based on a polycarbonate/ABS blend. “Our material was selected not only due to its low tendency to warp and excellent flame-retardant properties, but also because it meets the strict requirements relating to chemical resistance, thermal stability and impact strength. It also supports a safe ultrasonic welding process,” explains Fabio Passeri, HPM’s Sales Manager for Italy/Switzerland.

Virtually No Aging When Exposed to Light and Moisture


LANXESS
LANXESS
The white and black compound colors used to make the battery housings and frames for the two electric bikes were developed for Askoll. The compound replaces a glass fiber-reinforced, flame-retardant PBT with a UL 94 V-0 classification. The blend material from LANXESS scored highly with its excellent resistance to light and moisture, which ensures it, passes the relevant weathering tests based on the conditions of ISO 4892-3. “The high color stability means there is no need for the components to have a separate UV protective coating, which delivers significant cost savings,” reveals Passeri. The excellent resistance to weathering also ensures that the blend’s exceptional mechanical properties withstand very long periods of exposure to light and moisture. This is confirmed by tests on the finished component based on various standards for the safety of batteries, accumulators and electric bikes such as UN 38.3, IEC 62133 and UNI EN 15194.

Expansion of Pocan AF Product Line


The Pocan AF product line currently comprises variants with 20 and 30 percent glass fibers. Their flame-retardant properties, hydrolysis stability and warping behavior are comparable to the new material used by Askoll, and they are ideal for applications requiring that little bit extra when it comes to rigidity and strength. Other potential applications besides battery cell housings include connectors that are subject to mechanical loads and housings for electronic circuits such as battery management systems.

About LANXESS


LANXESS is among the leading specialty chemicals companies with sales of EUR 7.9 billion in 2015 and about 16,600 employees in 29 countries. The company is currently represented at 52 production sites worldwide. The core business of LANXESS is the development, manufacturing and marketing of chemical intermediates, specialty chemicals and plastics. Through ARLANXEO, the joint venture with Saudi Aramco, LANXESS is also a leading supplier of synthetic rubber. LANXESS is listed in the leading sustainability indices Dow Jones Sustainability Index (DJSI World) and FTSE4Good.

Source: LANXESS

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