According to foreign media reports, Tepex continuous fiber-reinforced thermoplastic composites, because of their special semi-finished structure, even if they do not contain flame retardant additives, also show good fire performance. LANXESS subsidiary Bond-Laminates conducted a comprehensive investigation and testing (partly in cooperation with an external testing agency) for Tepex's typical applications and installations, and obtained this result. Dr. Stefan Seidel, Head of Research and Development at Bond-Laminates, said: "The test also shows that our composite materials are very suitable for the structure and housing parts of high-voltage batteries for electric vehicles. For safety reasons, these parts need to have excellent flame retardant properties This type of material is a lightweight alternative to aluminum and can provide a cost-effective component solution. This is due to the hybrid molding method that can bring together various functions, thereby reducing costs, and the processing method is simple, not Need to rework. " Among them, in the United States Federal Motor Vehicle Safety Standard FMVSS 302 (Federal Motor Vehicle Safety Standard) test, mainly to test the combustion characteristics of materials in automotive interiors, such as burning speed. During the test, the non-flame retardant Tepex version performed well. The material was indeed ignited, but within the prescribed test time, the flame hardly spread outward. At the same time, according to the provisions of UN 180,6.2.4, a brazier test is performed on the non-flame retardant Tepex version. Place the test sample flat on the burning fuel, directly exposed to the fire for 70 seconds, and not directly exposed to the fire for 60 seconds. This test truly reproduces the fire conditions that Tepex may face in typical applications, such as underbody paneling components. As Seidel said: "In these two tests, there were no holes in the composite material, and the fibers were not burned." The plastic did not show any drip burning, and the test piece itself went out. "The reason for the flame retardant properties is that the content of flame retardant continuous fibers is high and the proportion of flammable plastics is relatively low. In addition, the UL 94 test conducted did not provide any reliable basis to explain the actual fire behavior of Tepex. The reason is that the vertically fixed specimen is exposed to the flame from the edge. Seidel said: "This method is not consistent with the typical Tepex installation. Usually, our composite material undergoes overmolding and reinjection processes, which can prevent the flame from entering the fiber end." Bond-Laminates provides halogen-free flame retardant Tepex materials based on polyamide, polycarbonate and polyphenylene sulfide for applications requiring mandatory V-0 classification. For example, the polycarbonate product types are listed as V-0 on the UL yellow card, and the sample thickness is between 0.4-2.2mm. In the electric vehicle power system, the potential application ability of Tepex material is great. Bond-Laminates comprehensively studies the combustion behavior of the Tepex material based on polyamide 6 over-injection through its own testing device. The "HiAnt carrier" used in the test is a U-shaped profile made of Tepex, the inside of which is reinforced by various transverse ribs made of polyamide 6, with or without flame retardant packaging. The actual test sample was exposed to 6 positions in a flame at 900 ° C for 30 seconds to 5 minutes, for example, on a polyamide rib or where it has not been overmolded. In this test, the non-flame retardant Tepex material once again confirmed its excellent fire performance. After five minutes of flame treatment, only the molded rib material burned, and only when not equipped with a special flame retardant. In contrast, if ribs and overmolded areas made of tested flame-retardant polyamide are used, the flame in the flame treatment area will not spread, but will extinguish when the burner is removed. Seidel said: "For the design of flame retardant components, combining non-flame retardant Tepex with flame retardant injection molding materials can provide a very large safety factor. We have seen the huge potential of this material combination for high-voltage battery components , Such as housings and partitions, can also be applied to the floor of induction battery charging systems. " Electrolysis Membrane,Electrolysis Ion Exchange Membrane,Chlor-Alkali Ion Exchange Membrane,Pfsa Ion Membrane Mianyang Prochema Commercial Co.,Ltd. , https://www.gustek.com