What is a polypropylene tube? Polypropylene tube is the lightest thermoplastic tube. It has high rigidity and strength, good chemical resistance to common inorganic acids, alkalis and salts, and a large number of organic compounds. It is suitable for chemical sewage, seawater, oil and irrigation pipes. Due to its special product characteristics and excellent environmental adaptability, polypropylene pipes are sold very well on the market in the current market, and the fields used are also extremely broad. What are the properties and characteristics of polypropylene tubes? The following Xiaobian gave everyone a detailed introduction.

What is polypropylene tube

Due to the low density of polypropylene (0.91 to 0.92 g/cm3), the polypropylene tube is the lightest thermoplastic tube. It has high rigidity and strength, good chemical resistance to common inorganic acids, alkalis and salts, and a large number of organic compounds. It is suitable for chemical sewage, seawater, oil and irrigation pipes. Western European countries also use polypropylene pipes as heating systems for hot water pipes.

Polypropylene tube material

Polypropylene, a thermoplastic resin made from the polymerization of propylene. The positions of the methyl groups are classified into isotactic polypropylene, atactic polypropylene, and syndiotactic polypropylene.

The methyl groups are arranged on the same side of the molecular backbone as isotactic polypropylene. If the methyl groups are disorderly arranged on both sides of the molecular backbone, they are called random polypropylenes. When the methyl groups alternate between the two sides of the molecular backbone, Polypropylene. In general industrial production of polypropylene resins, the isotactic structure content is about 95%, and the rest is random or syndiotactic polypropylene. Industrial products are mainly composed of isotactic substances. Polypropylene also includes copolymers of propylene with small amounts of ethylene. Usually translucent colorless solid, odorless and non-toxic. Due to the highly structured structure, the melting point can be as high as 167°C. Heat resistance, corrosion resistance, steam sterilization products is its outstanding advantages. Low density is the lightest universal plastic. The disadvantages are poor low-temperature impact resistance and easier aging, but they can be overcome by modification.

The copolymer PP material has a low heat distortion temperature (100°C), low transparency, low gloss, and low rigidity, but has a stronger impact strength, and the impact strength of PP increases as the ethylene content increases. . The Vicat softening temperature of PP is 150°C. Due to the high degree of crystallinity, this material has very good surface stiffness and scratch resistance. PP does not have the problem of environmental stress cracking.

The melt flow rate (MFR) of PP is usually from 1 to 100. PP materials with low MFR have better impact resistance but lower strength. For the same MFR material, the copolymer type has higher impact strength than the homopolymer type. Due to crystallization, PP shrinkage is quite high, typically 1.6 to 2.0%.

Polypropylene tube performance and characteristics:

1, PP pipe non-toxic, no rust, no scaling, in line with QB1929-93 water supply standards and HG20539-92 standards.

2, PP pipe high temperature, pipeline water temperature up to 90-100 °C.

3, PP pipe using hot-melt connection technology, pipe and pipe fittings homogeneous melting as one, there is no removable sleeve or pressure type connector, safe and reliable, never leak.

4, PP pipe light weight, the proportion of only one-eighth of the steel pipe, easy to install, handle and connect, saving labor costs.

5, PP pipe corrosion resistance, can effectively prevent water or chemical ions in the pipe inside and outside the role of corrosion.

6, PP pipe wall is smooth, the system pressure loss is small, the water flow speed.

7, PP tube products are soft colors, various colors, to meet the needs of various occasions.

8, PP pipe is widely used in urban water supply; food, chemical industry; ore, mud transport; replace cement pipe, cast iron pipe and steel pipe.

Editor's summary: The relevant information on the properties and characteristics of polypropylene tubes was introduced here. I hope this article will be helpful to everyone. If you still have something you don't understand, you can leave a message to Xiaobian at the bottom. We will answer your questions as soon as possible.

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