What’s glass fiber reinforced plastic?
Glass fiber reinforced plastic is based on the original pure plastic, adding glass fiber and other additives to improve the use of the material.
In general, most of the glass fiber reinforced materials are used in structural parts of the product and are a structural engineering material; such as: PP, ABS, PA66, PA6, PC ,POM, PPO ,PET, PBT ,PPS.
- After the plastic is reinforced, the glass fiber is a high temperature resistant material. Therefore, the heat resistant temperature of the reinforced plastic is much higher than before the glass fiber being added, especially the nylon material;
- After the plastic is reinforced, the addition of the glass fiber limits the mutual movement of the polymer chains of the plastic. Therefore, the shrinkage rate of the reinforced plastic is greatly reduced, and the rigidity is also greatly improved;
- After the plastic is reinforced, the reinforced plastic will not be stress cracked, and at the same time, the impact resistance of the material is improved a lot;
- After the plastic is reinforced, the glass fiber is a high-strength material, which also greatly increases the strength of the plastic, such as: tensile strength, compressive strength, bending strength, and a lot of improvement;
- After the plastic is reinforced, the combustion performance of the reinforced plastic is greatly reduced, and most of the materials cannot be ignited, which is a flame retardant material.
- After the plastic is reinforced, , it will become opaque without adding the glass fiber;
- After the plastic is reinforced, and the brittleness is increased;
- After the plastic is reinforced, the melt viscosity of all materials increases, the fluidity becomes worse, and the injection pressure is much higher than that without the glass fiber;
- After the plastic is reinforced, , the fluidity is poor. For normal injection molding, the temperature of injection molding machine of all reinforced plastics is increased by 10 ° C to 30 ° C before the addition of glass fiber;
- After the plastic is reinforced, due to the addition of glass fiber and additives, the hygroscopic property of the reinforced plastic is greatly enhanced, and the original pure plastic will not become water-absorbing, so it must be dried during injection molding.