Measuring the weather resistance of polyethylene (PE) pipes is very important, as PE pipes are widely used in water supply, drainage, natural gas transmission, and industrial pipelines, which need to be able to resist the erosion of various factors such as ultraviolet radiation, teplotní změny, vlhkost vzduchu, Chemikálie, and mechanical stresses for a long time. Weather resistance testing can help evaluate the stability, fyzikální vlastnosti, and service life of PE pipes under these conditions to ensure that they can maintain good performance and reliability in the application.

Metoda testu
Accelerated aging test: use simulated accelerated aging equipment, such as ultraviolet radiation lamp or constant temperature and humidity box, to expose PE pipe samples for a certain time. The weatherability of PE pipes is evaluated by observing phenomena such as appearance change, color stability, povrchové praskání, odlupování, or other shape changes.

Physical property test: measure the physical properties of PE pipe samples, such as strength, tvrdost, impact resistance and wear resistance. By comparing the test results at different time points, whether the physical properties of PE pipes are affected by weathering conditions is evaluated.

Dimensional stability measurement: Measure the dimensional changes of PE pipe samples, including parameters such as length, diameter and wall thickness. The dimensional stability and change of PE pipes were evaluated by comparing the measurement results at different time points.

Weatherability of pe pipe and its detection method

Chemical property analysis: Chemical analysis methods, such as infrared spectroscopy (FTIR) or nuclear magnetic resonance (NMR), se používají k detekci změn chemických vlastností vzorků PE trubek v podmínkách odolnosti vůči povětrnostním vlivům. Pozorujte, zda se mění molekulární struktura, přerušení chemických vazeb, nebo dochází k tvorbě produktů rozkladu.

Zkouška pevnosti v protržení: použijte tlakovou zkoušečku nebo prodlužovací zkoušečku k aplikaci vnitřního tlaku nebo vnější síly na vzorek PE trubky, abyste změřili její pevnost v protržení. By comparing the test results at different time points, byla hodnocena povětrnostní odolnost a odolnost proti protržení PE trubek.

Dlouhodobý zakopaný test: Vzorky PE potrubí se zakopou do půdy nebo vody, po určitou dobu vystaveny skutečnému prostředí, a sledujte jeho výkon a změny vzhledu. Srovnáním pozorování z různých časových období byla hodnocena povětrnostní odolnost PE trubek za skutečných podmínek použití.

Prostřednictvím výše uvedených metod, the weather resistance of PE pipe can be comprehensively evaluated, and its stability, physical properties and service life under different environmental conditions can be understood. This helps to improve the quality and reliability of PE pipes, ensuring that they can maintain good performance and safety for a long time in applications such as water supply, drainage, natural gas transmission, and industrial piping. Please note that specific test methods and standards may vary depending on different PE pipe types and application requirements. Proto, it is recommended to refer to relevant standards and specifications and consult professional laboratories or testing institutions for more specific and accurate advice before conducting tests.