MATERIALS | HIGH TEMPERATURE PLASTICS


Above: Freudenberg Sealing Technologies says its


Quantix Ultra material has been flame tested at a temperature of 1,200° C for over 25 minutes


Below: Syensqo’s newest offerings include the Xydar liquid crystal polymer grade G-330 HH for high-heat EV battery module components


a 2 mm thick aluminium sample that was destroyed under similar conditions in 2-3 s, Truxius said. Freudenberg Sealing Technologies said its Quantix Ultra can produce flame protection barriers for the cooling system of lithium-ion batteries for an electric vehicle. Starting in February 2024, the material will be used for the first time in series production by a supplier to an international automotive manufacturer as a flame protection barrier for cooling system parts in an EVs lithium- ion battery, where it will regulate the temperatures of drive batteries, said Marco Sutter, Global Market Segment Manager. The company said the material is not limited to specific geometric shapes, offering the greatest possible design freedom that injection moulding manufacturing allows. The material properties of the patented compound can be adjusted for a specific application. It can, for example, be pro- cessed into films for use in battery electric devices. Other potential applications include enclosures for power supply units, media-carrying lines, cable insulation, battery housing covers and components for electric motors. It can be used for the casings for conductor rails or busbars, as the polymer is an outstanding electrical insulator and helps to prevent short-circuits. Mounting chips can be integrated into the desired part during production without difficulty.


Quantix Ultra processes with the advantages


associated with other thermoplastics, allowing for the production of large complex geometries in high volumes with short cycle times. Crosslinking is achieved with a special cross-linking agent intro- duced into the material in-line with standard injection moulding processes. This compares to other cross-linking processes for thermoplastics that rely on gamma radiation or the use of solvents. The material has a melting temperature of about 220° C with a barrel temperature of 230-240° C, according to the company. Freudenberg Sealing Technologies also men- tioned that the material offers a reduced CO2 footprint when compared to conventional polyam- ide 6.6. “The so-called emission factor is 61% less and represents 2.8 kg of CO2 per kg of granulate,” the company said. Syensqo, the former specialties business of


Solvay, said the trend for thinner and smaller automotive and electronic mouldings continues to drive developments in high-temperature plastics. “Reducing the size of the component is a critical issue for e-mobility, even more important than in the past. The key trend in e-mobility is increasing voltage. By the end of the decade 800 V architec- tures are expected to assume around 25% of the market. Some car manufacturers are already working on architectures based on 1,000 V and higher. This voltage increase will require new material solutions in order not to jeopardise the safety of cars and passengers,” said Nicolas Batailley, Marketing Manager Automotive at Syensqo. The company’s newest offerings include the


Xydar liquid crystal polymer (LCP) grade G-330 HH for high-heat EV battery module components. The new material grade addresses challenging thermal and insulation requirements particularly for battery module plates of EV models operating with higher voltage systems, the company said. The material’s development, the company said,


reflects a trend as automakers are moving from 400 V to 800 V on next-generation vehicles, prompted by new regulations in Europe, China, the US, and


50 COMPOUNDING WORLD | September 2024 www.compoundingworld.com


IMAGE: SYENSQO


IMAGE: FREUDENBERG


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