PP Long Glass Fiber For Electronic Accelerator Pedal

Long glass fiber reinforced polypropylene plastic refers to a modified polypropylene composite material containing glass fibers with a length of 10 to 25 mm, which is formed into a three-dimensional structure through injection molding and other processes.

The microstructure determines the macro performance, so 10 ~ 25mm long glass fiber reinforced plastic (abbreviated as LGFPP) has higher strength, stiffness, toughness, and dimensional stability, warping than ordinary 4 ~ 7mm short glass fiber reinforced plastic (abbreviated as GFPP). Low curvature and other advantages. In addition, long glass fiber reinforced polypropylene materials do not produce significant creep even when subjected to a high temperature of 100 ° C, and have better creep resistance than short glass fiber reinforced polypropylene.

On injection molded products, long glass fibers are staggered to form a bulk network structure. Even after the polypropylene substrate is burned, the long glass fiber network still forms a glass fiber skeleton with a certain strength, while short glass fibers generally become non-strength fibers after burning skeleton. The cause of this situation is mainly because the aspect ratio of the reinforcing fibers determines the reinforcement effect. The critical aspect ratio = L / D. The filler with a critical aspect ratio of less than 100 and short glass fibers have no reinforcing effect, while the critical aspect ratio is less than 100. Glass fiber acts as a reinforcement.