In outdoor engineering construction, PE pipes are used more and more widely, especially in some scenes that require open-air laying. Many people will be concerned about the sun resistance and durability of PE pipes exposed to outdoor and long-term direct sunlight.
First of all, let's understand the basic characteristics of PE pipes. PE, also known as polyethylene, is a plastic material with excellent chemical stability, corrosion resistance, flexibility and processing properties. These characteristics make PE pipes widely used in water supply and drainage, gas transportation and other fields.
Then, regarding sun resistance, PE materials themselves have a certain sensitivity to ultraviolet rays. If it is a pipe made of pure PE material, long-term exposure to strong sunlight will accelerate its aging process, which may lead to cracks on the surface of the pipe, mechanical properties and other problems, thus affecting the service life. However, the PE pipes currently on the market for outdoor open-air installation are not pure PE materials. In order to improve its anti-ultraviolet aging ability, a certain proportion of anti-ultraviolet stabilizers (also known as UV stabilizers) are usually added during the production process. These stabilizers can effectively absorb or shield ultraviolet rays and reduce the damage of ultraviolet rays to the molecular structure of PE, thereby significantly improving the sun resistance and anti-aging ability of the pipe in outdoor environments.
Let's talk about durability. The PE pipe with anti-ultraviolet stabilizer added not only has good sun resistance in outdoor open-air environment, but also maintains its inherent durability characteristics. PE pipe has good flexibility and can withstand the stress caused by certain soil settlement and temperature changes, and is not prone to brittle fracture. Its chemical stability also makes it able to resist the erosion of most acid and alkali media. In open-air environment, even if it encounters rainwater and some corrosive substances in the air, it is not easy to be damaged by corrosion. In addition, PE pipe is light in weight, easy to install, and the interface is connected by hot melt or electric fusion. It has high connection strength and good sealing performance. These all help to ensure its reliability during long-term use.
Of course, to ensure that the PE pipes installed outdoors in the open air can be sun-resistant and durable for a long time, in addition to the quality of the pipes themselves, correct installation and use maintenance are also very important. During installation, PE pipes with qualified quality and clearly marked with anti-ultraviolet stabilizer should be selected. When laying, the pipes should be avoided from being scratched by sharp objects as much as possible to avoid damaging the anti-aging layer on the surface. During use, regular inspections of the pipes can be carried out to detect and deal with possible problems in time, which can also effectively prolong their service life.
To sum up, as long as the PE pipe with reliable quality and anti-ultraviolet stabilizer is added, and standardized installation and proper maintenance are carried out, the PE pipe has good sun resistance and durability in the case of outdoor outdoor installation, which can meet the requirements of long-term use. This is also one of the important reasons why PE pipe is widely used in outdoor municipal engineering, agricultural irrigation, landscape water system and other open-air application scenarios.