With the development of urban construction, water supply and drainage pipes are used more and more widely. At the same time, people have put forward more and higher requirements on the material selection of water supply and drainage pipes. For example, water supply and drainage pipes must not only meet the standards of practicality, but also meet the requirements of environmental protection. Among the various pipe materials, plastic composite materials are increasingly valued by people.
Traditional drainage pipes are generally metal pipes, plastic pipes, and composite pipes, but these pipes also have some shortcomings in terms of environmental protection, service life, cost performance, etc. The emergence of plastic composite materials has solved the problems of traditional pipes.
This post will give you a detailed introduction from four aspects: the meaning of plastic composite pipes, the selection criteria of plastic composite pipes, the advantages of plastic composite pipes, and the applications of plastic composite pipes.
Meaning Of Plastic Composite Pipes
As the name implies, plastic composite pipes are made of a combination of multiple raw materials. They are based on plastic materials and other materials are added during the manufacturing process. In the end, this composite pipe combines the characteristics of different materials, taking into account strength, corrosion resistance, toughness, stability, service life, weight, cost-effectiveness, and other characteristics.
Generally speaking, plastic composite pipes can be divided into plastic-aluminum composite pipes, plastic-steel composite pipes, plastic-fiber composite pipes, and plastic-copper composite pipes.
Selection Criteria Of Plastic Composite Pipes
Different application scenarios have different requirements for water supply and drainage pipes, such as pipe raw materials, pipe size, pipe quality, etc. However, these choices also have some standards that must be followed.
1. The pipes must be able to withstand vibration, impact, water hammer, thermal expansion, and contraction. For example, in some areas with extremely cold winters, the low temperature in winter will increase the volume of ice cubes formed by water, so the water pipes must be able to withstand the risk of bursting.
2. The water supply and drainage pipeline system is closely related to the lives of residents. As a water circulation carrier, the pipe must meet strict hygiene standards.
3. As a building material, water supply and drainage pipes must be recyclable and sustainable.
4. When choosing pipes, if the quality of the pipes is not good, it will cause the pipes to be damaged during construction or use, increasing maintenance and repair costs. If too expensive materials are selected, it will lead to increased costs and even waste of resources. Therefore, when choosing pipes, high quality, and cost-effectiveness must be taken into account.
Advantages Of Plastic Composite Pipes
1. Superior properties
Compared with metal pipes, plastic composite pipes are better isolated from the air and are not prone to oxidation reactions inside the pipes, which can cause problems such as deterioration of pipe quality and scaling and clogging.
The inner wall of the plastic composite pipe is smoother, and the friction with water is smaller, which reduces the resistance of water flow.
2. Convenient to use
Compared with metal pipes, plastic composite pipes are lighter, thinner, easier to transport, cut, and install, and can effectively shorten the construction time.
3. Resource saving
Plastic composite pipes use a combination of polymer materials and traditional materials. They can not only meet the functions of water supply and drainage pipes, but also have cost-effectiveness. They also have good corrosion resistance and greatly reduce the consumption of energy and resources.
Applications Of Plastic Composite Pipes
1.Plastic-aluminum composite pipes
Plastic-aluminum composite pipes have the performance advantages of both metal and plastic materials. They have the characteristics of smooth appearance, rich colors, high strength, strong corrosion resistance, strong low-temperature resistance, and easy processing.
The inner layer of the commonly used plastic-aluminum composite pipe is polyethylene material, which is corrosion-resistant, and the outer layer is made of aluminum alloy material, which has high strength, is not easy to damage, and can withstand low temperatures.
Its service life can reach 50 years, and it is mainly used in hot and cold water pipes and heating pipes in buildings.
For example, in places such as Central Asia and Russia where the winter is particularly cold, it is particularly in demand as a floor heating pipe.
2.Plastic-steel composite pipes
Plastic-steel composite pipes are made of new materials that are a composite of steel and high polymer.
It can maintain the mechanical strength of steel, and at the same time, because of the high polymer material on the surface, it has better corrosion resistance and friction resistance. Its innermost layer is the inner plastic layer, which can overcome the problem of pipe rust and can be used in water supply systems and cold water pipe systems.
3.Plastic-fiber composite pipes
Plastic-fiber composite pipes are made of a mixture of reinforcing fibers and thermoplastic polymers.
Fibers have strong mechanical properties, good impact resistance, good stability, good fatigue resistance, and can adapt to high temperature and humid environments. Therefore, the pipes made by compounding with plastics have strong stability and can adapt to water shock and vibration.
This type of pipe is mainly used in petrochemical pipeline systems, water supply and drainage, and sewage treatment systems in municipal engineering, seawater transportation, agricultural irrigation, and other fields.
4.Plastic-copper composite pipes
Plastic-copper composite pipes have many advantages of copper, such as good electrical conductivity, thermal conductivity, chemical stability, and corrosion resistance. At the same time, copper has a good bactericidal effect. The use of copper-made water supply pipes can improve water quality and ensure the safety and hygiene of water.
The good thermal conductivity of copper enables plastic-copper composite pipes to be used alone as hot water pipes. The plastic in it can be used as an insulation layer, which not only has excellent mechanical strength, but also protects the copper pipe from damage.
The hot-melt plastic-coated copper water pipe is a double-layer composite pipe with inner copper and outer plastic. It is suitable for direct drinking water pipes and other pipes. According to the structure of the water pipe interface, it can be divided into equal-diameter tees and reducing-diameter tees. Using plastic copper as an interface is not easy to rust, prevents aging, and is fire-retardant. It has a good application effect in locations where pipeline construction is more complicated.
Summarize
The above is the complete introduction of plastic composite pipes. The use of plastic composite pipes can not only save the construction cost of the project, but also increase the service life of the pipeline, which is very cost-effective. In addition, it is low-carbon and environmentally friendly, and has sustainability. Using plastic composite pipes to replace traditional pipes has become a trend.
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