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Help Centerpp Pipe, Cangzhou Jiahe, Dn63, no Pressure, Temperature Resistance up to 80°c
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1. What is a PP pipe?
· A PP pipe is a thermoplastic pipe formed by melting and extruding polypropylene resin in one piece.
2. Characteristics of PP pipes and fittings:
① Advantages:
· Good mechanical properties - The raw material (polypropylene resin) is a polymer with high cleanliness and has a non - standard long - chain structure. These long - chain molecules penetrate, overlap, and entangle with each other, forming a random coil structure. There is a strong attractive force between the long - chain molecules, which makes the polymer exhibit good mechanical properties.
· Good chemical resistance - It can resist the corrosion of acids, alkalis, salt solutions, and a variety of organic solvents.
· Low density - 0.91 - 0.95g/cm³.
· High strength - The tensile yield strength reaches 30MPa, the impact strength is ≥90J/m, and the bending strength is ≥46MPa.
· Good heat resistance - According to the actual application, the working temperature can reach 80℃.
· Low thermal conductivity - The thermal conductivity of a PP pipe is 1/200 of that of a steel pipe.
· High wear - resistance coefficient - When transporting ore sand slurry, the wear - resistance of a PP pipe is 4 times that of a steel pipe.
· Hygienic - Colorless, odorless, and non - toxic.
· Heat distortion temperature - 85 - 100℃.
② Disadvantages:
· Poor low - temperature impact resistance. It shows great brittleness at around 5℃.
· Decomposes under high temperature and oxidation.
3. Application scope:
· Due to its colorless, odorless, non - toxic properties, as well as chemical resistance, heat resistance, electrical insulation, high - strength mechanical properties, and good high - wear - resistant processing properties, it is widely used in the transportation of water, industrial gases, and liquids. At the same time, by adding corresponding additives to the raw material, properties such as flame retardancy, antistatic, anti - ultraviolet, and anti - aging can be achieved to solve more complex usage scenarios in actual working conditions.
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