Description of Resistant Plastic PP film, PP Polypropylene Film RollsResistant Plastic PP film, PP Polypropylene Film Rolls made of PP resin through beer extrusion, calendaring, trimming and other processes. It has light weight, bright and calm surface, good heat resistance, high mechanical strength, excellent chemical stability and electrical insulation , Non-toxic and other characteristics, after thermoforming can be made into beverage cups, food boxes and other daily necessities.Resistant Plastic PP film, PP Polypropylene Film Rolls molding specific gravityResistant Plastic PP film, PP Polypropylene Film Rolls specific gravity: 0.9-0.91 g / cm3 molding shrinkage: 1.0-2.5% molding temperature: 160-220 ° C. Low density, strength and stiffness, can be used at about 100 degrees. Has good electrical properties and high-frequency insulation is not affected by humidity, but becomes brittle at low temperatures, not resistant to mold and easy to age. Suitable for making general mechanical parts, corrosion-resistant parts and insulating parts.Resistant Plastic PP film, PP Polypropylene Film Rolls molding performance1. Crystal material, low hygroscopicity, prone to melt fracture, easy to decompose in contact with hot metal for a long time.2. Good fluidity, but the shrinkage range and shrinkage value are large, and shrinkage holes, dents and deformation are easy to occur.3. The cooling speed is fast, the pouring system and cooling system should slowly dissipate heat, and pay attention to control the molding temperature. Low temperature and obvious directionality. It is especially obvious at low temperature and high pressure. When the mold temperature is lower than 50 degrees, the plastic part is not smooth, and it is easy to produce poor welding, leaving marks, and warping deformation is easy to occur above 90 degrees.
Specificqtion of Resistant Plastic PP film, PP Polypropylene Film Rolls
Summary of Properties of Materials
1. Density Resistant Plastic PP film, PP Polypropylene Film Rolls is the lowest density of all synthetic resins, only 0.90~0.91g/cm3, which is about 60% of pvc density. This means that more products of the same volume can be produced with the same weight of raw materials.
2. Mechanical property pp has good tensile strength and rigidity, but poor impact strength, especially poor impact resistance at low temperature. In addition, if there is orientation or stress when the product is formed, the impact strength will also be significantly reduced. Although the impact strength is poor, its mechanical properties can compete with higher cost engineering plastics in many fields after modification such as filling or reinforcement.
Common acid and alkali organic solvents have little effect on it and can be used for tableware. A kind of A thermoplastic resin made by polymerization of propylene. There are three kinds of configurations, i.e. isotactic, random and indirect. Industrial products are mainly composed of isotactic. Resistant Plastic PP film, PP Polypropylene Film Rolls also includes copolymers of propylene and a small amount of ethylene. It is usually a translucent colorless solid, odorless and nontoxic. Because of its regular structure and high crystallization, its melting point is as high as 167 ℃, and it is heat-resistant. With a density of 0.90g/cm3, it is the lightest general-purpose plastic. Corrosion resistance, tensile strength 30MPa, strength, rigidity and transparency are better than polyethylene. The disadvantage is poor low temperature impact resistance and easy aging, but it can be overcome by modifying and adding antioxidant respectively
