polypropylène matériaux composites en fibres de verre pp homopolymère de polypropylène long fibre de verre est polymérisé à partir d’un seul monomère de propylène, avec une cristallinité élevée, une bonne résistance mécanique et une bonne résistance à la chaleur.

PP fill Long glass fiber Advantages of glass fiber reinforced PP material in modified PP material. 1、The heat resistance temperature of glass fiber reinforced PP is much higher. 2、The shrinkage of glass fiber reinforced PP decreases a lot, and the rigidity is greatly improved. 3, glass fiber reinforced PP plastic, will not stress cracking, impact resistance improved a lot. 4、After glass fiber reinforced, the burning performance of PP plastic is reduced a lot. 5、After glass fiber reinforcement, the strength of PP is improved, such as: tensile strength, compressive strength, bending strength. The disadvantages of glass fiber reinforced PP material in modified PP material. 1、After glass fiber reinforcement, the transparency of the material decreases. 2、After glass fiber reinforced, the toughness of PP decreases and the brittleness increases. 3、After glass fiber reinforced, the hygroscopic property of PP is greatly enhanced, therefore, it should be dried when injection molding. 4、After glass fiber reinforcement, the melt viscosity of PP increases, the fluidity becomes worse, and the injection pressure increases a lot. 5、After glass fiber reinforcement, the fluidity of PP material is poor, and the injection temperature of reinforced plastic is increased by 10℃-30℃. 6、After glass fiber reinforced, attention should be paid to the surface corrosion treatment and surface hardness treatment of the equipment. 7、After glass fiber reinforcement, during the injection process, glass fiber can enter the surface of plastic products, making the surface of the products become rough. It is necessary to use the mold temperature machine to heat the mold when injection molding, so that the plastic polymer can enter the surface of the products and obtain a higher surface quality. TDS for reference only We have general grade, heat-resistance grade, UV-resistance grade, toughen-resistance grade for you to choose. Application General grade: Car parts, washing machine parts, water pump parts, water treatment components, furniture parts, etc. Heat-resistance grade: Car front and back module, water tank frame, battery bracket, engine cover, skylight frame, etc. UV-resistance grade: Car handle, car mirror parts, battery case, truck outside pedal etc. Toughen resistance grade: Power tools, pump shell, pipe fittings etc. LGF VS SGF Frequently askes 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. The causes and solutions for floating fibers for long glass fiber and long carbon fiber products. A. En raison de la basse température du sol ou de la basse température du moule et de la faible pression de moulage par injection, la fibre de verre et la résine ne peuvent pas être bien compatibles et diffusées. La température inégale du moule de surface du moule entraînera le problème des fibres flottantes et peut être résolue en augmentant la température du sol, la température du moule et la pression d'injection. Q. Le PP renforcé de fibres de verre longues réduira la ténacité du matériau et augmentera sa fragilité. Existe-t-il un moyen de résoudre ce problème? A. Les fibres de verre longues et les fibres de carbone longues améliorent considérablement l'impact et la résistance à la traction du substrat.