Research on the Preparation and Property of High Content Glass Fiber Reinforced Nylon 66

Using chopped glass fiber and PA66, the enhanced PA66 materials with high glass fiber content were prepared by side feeding and melting extrusion method. the mechanical properties of materials were tested and analyzed,the surface condition of the injection molding plate with different glass fiber content was observed. The impact section of glass fiber reinforced PA66 composite with 30%,50% glass fiber content was scanned by SEM. DSC tested the melting peaks of glass fiber reinforced PA66 composite with45%,50% glass fiber content. The results showed that the glass fiber reinforced PA66 materials of 50%glass fiber content had the highest tensile strength,flexural strength,flexural modulus and impact strength.SEM scan showed the combining effect of 50% glass fiber content material was well,but the model surface smooth was relatively the worst. The melting peak of material was enhanced by 3. 18 ℃ compared with the45% glass fiber PA66 material. The PA66 composite material with 50% glass fiber could be applied to the structural components with high heat resistance,high strength and low requirement for smooth.