PP-LGF compounds Long glass fiber reinforced polypropylene composites belong to a kind of long glass fiber reinforced thermoplastics, the main preparation materials are continuous long glass fiber and polypropylene. and polypropylene. Long glass fiber reinforced polypropylene composites have longer glass fiber length, high strength, low density, high impact performance, its rigidity, strength, creep and other properties better than conventional fiber reinforced polypropylene composites. The role of glass fiber reinforced materials in glass fiber reinforced polypropylene composites is to carry loads, and the specific load-bearing properties are related to the proportion of glass fiber reinforced materials in the material, length, orientation and other factors. In the preparation process, it is found that, under the condition of unchanged preparation technology, the increase of the proportion of glass fiber reinforced material in the material will shorten the length of the material, and the bending property, tensile property, and strength of the material will be increased; when the proportion reaches 50%, the various mechanical properties of the material will reach the best. PP-LGF application In automotive engineering, instrument panels, front-end components and underbody elements are increasingly made of glass-fiber-reinforced polypropylene. Polypropylene is characterized by low density, low material costs and ease of reuse, and is therefore gradually replacing engineering plastics and metals in these applications. Glass fiber reinforced composites can significantly enhance the durability, rigidity, toughness, creep, etc. of the original material, the current glass fiber reinforced composites are increasingly widely used in automotive parts.LGF polypropylene composites can solve the traditional short glass fiber reinforced materials are easy to warp, poor low-temperature toughness, fatigue resistance is generally shortcomings such as LGF polypropylene composites, LGF polypropylene composites in the glass fiber retention length is longer, with a high specific strength, LGF polypropylene composites have longer retained glass fiber length, high specific strength, high specific modulus, strong impact resistance, dimensional stability and low warpage, etc. Therefore, LGF polypropylene materials are used to replace parts produced by traditional PA-SGF, PBT-SGF and other materials. Further weight and cost reductions are realized. LGF polypropylene can be used for engine hoods, front-end modules, instrument panel frames, tailgates, battery trays, and door liner modules. Datasheet for reference Details Grade Fiber specification Mian characteristics Applications General grade 30%-60% Chemical coupling,high strength Automobile parts, washing machine parts, water pump parts, water treatment parts, furniture, etc. Heat-resistance grade 30%-60% High strength, long-term heat aging resistance Automobile front and rear end modules, water tank frames, battery brackets, hood covers, sunroof frames, etc. UV-resistance grade 30%-60% High strength, UV resistance, long term heat aging resistance, good product appearance Car (truck) door handles, mirror systems, battery housings, truck (SUV) exterior pedals, etc. Toughten resistance grade 30%-60% Ultra-high impact strength (at normal and low temperatures) Power tools, pump housings, pipe fittings, etc. Other materials you may wonder                          PA6-LGF                                   TPU-LGF                                  PA12-LGF Frequently asked questions Q. Does long glass fiber and long carbon fiber injection have special requirements for injection molding machines and molds? A. There are certainly requirements. Especially from the product design structure, as well as the injection molding machine screw nozzle and mold structure injection molding process must consider the requirements of long fiber. Q. Using a long fiber reinforced thermoplastic material, will it block the die hole due to the long length of the fiber or not? A. When using long glass fiber or long carbon fiber, it is necessary to evaluate whether the product is suitable for LFT-G. If the product is too small or the dispensing is not suitable for long fiber materials. The long fiber itself has requirements for the mold nozzle. Q. How to choose the reinforcement method and length of the material when using long fiber reinforced thermoplastic material? A. The selection of materials depend on the requirements of the products. It is necessary to assess how much the content is enhanced and how much length is more appropriate, which are depending on the performance requirements of the products.