Why LFT Plastics Substitute Metals Are Favored By Car Manufacturers?

- Jun 14, 2018 -

Why LFT plastics substitute metals are favored by car manufacturers?

1. Outstanding performance

     In addition to PP, ABS and other general engineering materials, nylon plastics represented by PA6, PA66, and long carbon chain nylon have been increasingly recognized for their excellent mechanical properties, electrical properties and dimensional stability in automotive applications. In particular, higher operating temperatures and more aggressive corrosive environments around the engine have imposed more stringent conditions on the use of plastics. Nylon materials have great potential for application in automobiles because of their excellent temperature resistance, chemical resistance, and good mechanical properties. The application of nylon modified materials in the automotive field is mainly based on structural parts, which is crucial to the safety of automobiles. Therefore, the requirements for nylon materials for vehicles are also more stringent. It has become an important indicator of the technical level of material production enterprises.

       At present, the automotive industry has become the largest consumer market for nylon modified materials, accounting for about 30% of its total market demand. Taking the BMW 328I as an example, the amount of plastic used for vehicles is 162Kg, and the amount of PA used is 21.8Kg, accounting for 13% of the total. Common automotive nylon materials are glass fiber/mineral reinforced PA6 and PA66 and can be used for intake manifolds, engine cylinder covers, radiator water chambers, throttle pedals, heat exchangers, oil pans and rear view Mirror brackets and other components.

2. No spray material - make the car more environmentally friendly

     In order to achieve a more beautiful appearance of interior and exterior trims, many decorative parts are painted to obtain a metallic effect with different effects. However, the spraying process has the disadvantages of complicated processes, environmental pollution, high production costs, and easy stripping of the parts. If it can give good appearance effects to the parts during the injection process, it can save energy and reduce emissions, and reduce production costs. .

    The spray-free material is based on the above requirements, solves the drawbacks of the traditional plastics, and satisfies the function of the product while being both decorative and aesthetically pleasing. Compared to traditional modified plastics, spray-free materials are rich in color, have a good surface gloss, meet a wide range of aesthetic needs, are more environmentally friendly, 100% recycled, and have a low cost of comprehensive use.

     In the automotive sector, spray-free materials are mainly based on high gloss and metallic gloss applications. High gloss non-spraying materials mainly include PMMA/ASA, PC and ASA. They are mainly used in automotive control panels, grilles, fenders and other components. The non-spraying material with metallic luster effect is mainly based on PP, ABS, PC/ABS, PMMA, and PA. It can be used as an alternative to electroplated plastic for automotive bumpers, pedals, and luggage racks.

3.LFT Plastics - Lower Costs for Automotive Manufacturing

    LFT plastic is a thermoplastic composite material with thermoplastic resin as matrix and long glass fiber (mainly glass fiber and carbon fiber) as reinforcement material. It has light weight, high strength, strong impact resistance, corrosion resistance, and excellent molding processability. Design and repeated recycling, environmental protection and other outstanding performance. At present, LFT plastics are mainly based on glass fibers. The plastic matrix is mainly polypropylene (more than 80% of the plastic matrix). It is mainly used in the manufacture of automotive semi-structures and structural components, and can replace lightweight metals and expensive engineering plastics.

    The mechanical properties of long glass fiber PP materials are close to those of PA+GF30 and PBT+GF30, and can replace PA and PBT engineering plastics in some areas to achieve cost reduction. At the same time, because of the lower density, parts can be made lighter. At present, long-glass fiber PP materials have been used by some auto manufacturers for automotive pedals, battery trays, door modules, front-end modules, and car tailgates, replacing not only the higher-cost aluminum metal or PA materials. , And to achieve a modular design of the workpiece, further reducing the car manufacturer's production costs.

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