Features and Applications of PP Modified Material With Glass Fiber, Advantages, Disadvantages and Processes

　As one of the four general plastic materials, PP has excellent comprehensive performance, good chemical stability, good molding processing performance, and relatively low price; but it also has low strength, modulus, low hardness and low-temperature impact resistance. Poor strength, large shrinkage, easy to age and other shortcomings. Therefore, it must be modified to suit the needs of the product. The modification of PP materials is generally through several ways of adding minerals to enhance toughening, weathering modification, glass fiber reinforced, flame retardant modification and super toughening modification. Each PP Modified Material has a field of household appliances. A lot of applications.
　　Generally, the tensile strength of PP material is between 20M and 30MPa, the bending strength is between 25M and 50MPa, and the flexural modulus is between 800M and 1500MPa. If you want to use PP on engineering structural parts, you must use glass fiber for reinforcement. PP plus glass fiber, the mechanical properties of glass fiber reinforced PP products can be doubled or even multiplied. Specifically, the tensile strength reaches 65MPa~90MPa, the bending strength reaches 70MPa~120MPa, and the flexural modulus reaches 3000MPa~4500MPa. This mechanical strength is comparable to ABS and reinforced ABS products, and is more resistant to heat. Generally, the heat resistance temperature of ABS and reinforced ABS is between 80 ° C and 98 ° C, while the heat resistance temperature of glass fiber reinforced PP material can reach 135 ° C to 145 ° C. The glass fiber used for reinforcing the modified PP requires a length of 0.4 to 0.6 ram. If the length is less than 0.04 mm, the glass fiber only serves as a filling effect and has no reinforcing effect. Developed countries are developing filament reinforced injection materials. The glass fiber content is 40% (mass fraction), and the higher the glass fiber content, the higher the PPR elastic modulus, tensile strength, and flexural strength. But generally can not exceed 40%, otherwise the flow will decline, losing the reinforcing effect, generally 10% to 30%.
PP Modified Material With Glass Fiber
PP Modified Material With Glass Fiber
　　PP Modified Material With Glass Fiber, which can be used to make axial fans and cross-flow fans in refrigeration machines such as refrigerators and air conditioners. In addition, it can also be used to manufacture the inner barrel, pulsator, and pulley of a high-speed washing machine to meet the high mechanical performance requirements, and is used in places with high-temperature resistance, such as rice cooker base and handle electronic microwave oven. PP plus glass fiber material. Ordinary short glass fiber reinforced PP, because of the short glass fiber, easy to warp, low impact strength, easy to deform by heat, long glass fiber can overcome the above defects of short glass fiber, and the product has a good surface and high The use temperature and high impact strength can be applied to refrigerators and kitchen appliances with high heat resistance.
　　advantage:
　　1. After the glass fiber 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 is added.
　　2. After the glass fiber 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.
　　3. After the glass fiber is reinforced, the PP plastic will not be stress cracked. At the same time, the impact resistance of PP is much improved.
　　4. After the glass fiber is reinforced, the glass fiber is a high-strength material, and thus the strength of the PP, such as tensile strength, compressive strength, and bending strength, is greatly improved.
　　5. After the glass fiber is reinforced, the burning performance of the PP plastic is greatly reduced due to the addition of glass fiber and other auxiliaries, and the flame retardation becomes difficult.
　　Our company is Flame-retardant PP Granules Factory, welcome to come to us.

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