has excellent comprehensive properties, good chemical stability, good molding performance and relatively low price; however, PP has low strength, modulus, hardness, poor low temperature impact strength, and molding. The disadvantages of large shrinkage and easy aging.
Generally speaking, the tensile strength of PP material is between 20M~30MPa, the bending strength is between 25M~50MPa, and the bending modulus is between 800M~1500MPa. Especially the high modulus reinforced material Fiberglass ECR Roving
, durable quality guarantee.Therefore, it is modified so that it can be adapted to the needs of the product. Today, each modified PP has a large number of applications in the field of household appliances and vehicles.
long glass fiber Glass fiber rovng
is an inorganic non-metallic material with excellent performance. Its advantages are good insulation, strong heat resistance, good corrosion resistance and high mechanical strength, but its disadvantages are brittleness, resistance Poor abrasiveness. One of the main uses of glass fiber is the reinforcement of composite materials. Long glass fiber generally refers to glass fiber with a length of more than 10mm.