AUTOMOTIVE | COMPOUNDS


contains many PTFE/PFAS free materials based on the most widely used polymer types with equal or better performance.”


Heating up Maintaining battery temperature within a defined operating range is one of the most critical aspects of battery life, making an efficient and appropriate cooling system vital. Eurotec’s Tecomid NA40 GR30 NL HY QH (PA6.6, 30% glass fibre reinforced, hydrolysis stabilised, black) is formulated for use in such cooling systems thanks to its hydrolysis resistance and copper-free stabilisation. Demand for PP-based products in such systems is increas- ing, mainly in the context of sustainability and cost, and the company has conducted long-term tests to investigate the hydrolysis performance of glass fibre reinforced PP products. Tecolen HP10 GR35 NL HT A (PPHP, 35% glass fibre reinforced, hydroly- sis stabilised, natural) maintained its tensile strength and elongation values at the end of the test performed in an ethylene-glycol/water mixture for 2,000 hours at 120°C. It is important to establish effective communication between vehicle and environment using control systems which process information coming from sensors. Sensor housing materials should have a good mechanical stiffness, creep and fatigue resistance, dimensional stability, and EMI shielding properties. Eurotec provides materials especially suited to sensor components, including Tecomid NB30 GR20 BK EF (PA6, 20% glass fibre reinforced, electrically conductive, black) which a well-known OEM is currently using for sensor brackets and housings. Most OEMs require components in EV batteries to have a UL V-0 flame retardant rating. Joachim Floeck, Marketing Manager at Celanese, said that achieving this can be difficult. “Whereas parts in the E&E industry often are very small, in an EV battery there are also large components such as battery module housing, E-box housings and covers, and other semi-structural parts. Often, flame retardant


Source: Eurotec


additives can cause a compound to be more viscous [which] slows injection moulding cycle times, which is especially problematic on large parts that already have longer cycle times.” Celanese’s solution to this problem is its new


Frianyl PA W-Series of flame retardant solutions which achieve V-0 flame retardance at 1.5mm and boast excellent flow characteristics. Compared to standard PA66 grades with 30% glass fibre reinforce- ment, the equivalent grade of the W-Series offers a 10-20% improvement in flow enabling high-volume processing of larger, more complex parts. W-Series solutions also have excellent laser markability, which is important for logistical management. Floeck adds that the solutions maintain an excellent Comparative Tracking Index (CTI) of 600V even after ageing at 150°C for 1,000 hours and long-term colour stability is described as “outstanding”. Power modules are crucial in power electronic systems such as inverters, DC-DC converters, and on-board chargers, facilitating the transfer of power and energy from the battery to the vehicle’s systems. Syensqo has introduced two new Amodel PPA grades for power electronics; Amodel PPA Bios HFFR R133 and Amodel PPA Supreme AE-1133 HFFR. These materials meet Critical to Quality (CTQ) requirements with high CTI (>600V), UL V0 flammability rating and retention of mechani- cal and electrical properties above 150°C, making


Above: Eurotec Tecolen HP10 GR35 NL HT A maintained its tensile strength and elongation values at the end of the test performed in an ethylene- glycol/water mixture for 2,000 hours at 120°C


New Covestro PC copolymer production


At Chinaplas 2024 in April, Covestro introduced a new production process which means plastics based on polycarbonate copolymers can be launched on the market more quickly and produced on an industrial scale. A new plant to produce these copolymers was commissioned at the company’s Antwerp site in March.


www.compoundingworld.com


The freedom of design, dimension- al stability, impact as well as chemical resistance and good flame retardancy of the new Apec XT grades makes them ideally suited for the automotive industry. The new copolymer technology enables the manufacture of products that exhibit high impact strength even


at temperatures as low as minus 40° C. In addition, these copolymers have improved chemical and ageing resistance, making them ideal for applications that require contact with aggressive cleaning agents and long durability in outdoor applications such as charging stations and wall boxes.


August 2024 | COMPOUNDING WORLD 55


Page 1  |  Page 2  |  Page 3  |  Page 4  |  Page 5  |  Page 6  |  Page 7  |  Page 8  |  Page 9  |  Page 10  |  Page 11  |  Page 12  |  Page 13  |  Page 14  |  Page 15  |  Page 16  |  Page 17  |  Page 18  |  Page 19  |  Page 20  |  Page 21  |  Page 22  |  Page 23  |  Page 24  |  Page 25  |  Page 26  |  Page 27  |  Page 28  |  Page 29  |  Page 30  |  Page 31  |  Page 32  |  Page 33  |  Page 34  |  Page 35  |  Page 36  |  Page 37  |  Page 38  |  Page 39  |  Page 40  |  Page 41  |  Page 42  |  Page 43  |  Page 44  |  Page 45  |  Page 46  |  Page 47  |  Page 48  |  Page 49  |  Page 50  |  Page 51  |  Page 52  |  Page 53  |  Page 54  |  Page 55  |  Page 56  |  Page 57  |  Page 58  |  Page 59  |  Page 60  |  Page 61  |  Page 62