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The mobile phone case, as a common plastic product, is often exposed to outdoor environments and is susceptible to UV light exposure. To evaluate the weather resistance of mobile phone case materials and ensure that they do not experience color fading, surface degradation, or mechanical performance decline during use, UV aging test is needed.
UV aging test can simulate long-term outdoor exposure for mobile phone cases. By exposing the material to UV light sources, it allows the material to undergo UV irradiation and other environmental factors, thereby testing the weather resistance of the material and predicting its durability in actual use.
There are mainly three units in the production supply chain of mobile phone cases that need to test their durability.
Mobile phone manufacturers: The weather resistance of mobile phone cases is one of the important indicators of phone product quality. Through the UV aging test, the weather resistance of different materials can be evaluated, material selection optimized, and it can be ensured that the phone cases will not experience color fading, surface degradation, etc., during long-term use.
Plastic material suppliers: Suppliers can use UV aging test chambers to evaluate the weather resistance of their plastic materials and provide materials that meet the requirements to mobile phone manufacturers. By continuously improving the weather resistance of their materials, suppliers can enhance the competitiveness of their products.
Research institutions and laboratories: Research institutions and laboratories can use UV aging test chambers to evaluate the weather resistance of new materials and compare them with traditional materials. This helps guide the development and improvement of new materials.
Select representative mobile phone case samples and ensure that the sample size meets the test requirements. Samples of different materials, colors, and textures can be chosen for testing.
Set the test conditions such as UV light intensity, temperature, and humidity according to the test requirements. UV aging test chambers or UV aging test instruments can be used to control the test conditions.
Install the mobile phone case samples in the testing equipment, ensuring that the sample surface is exposed to the UV irradiation area. The samples should be installed in a manner similar to actual usage conditions, such as vertical or horizontal installation.
Start the UV irradiation equipment and perform UV irradiation according to the set time and irradiation intensity of the test equipment. Continuous irradiation or periodic irradiation can be chosen based on the test requirements.
Regularly observe and record the changes in the samples, including changes in color, surface degradation, cracking, and cracks. Quantitative analysis can be done using colorimeters, microscopes, tensile testing machines, etc.
End the test according to the test requirements. Remove the samples and conduct a final observation and record.
Evaluate the weather resistance of the samples based on the test results. Compare the differences before and after the test to determine the aging degree and performance changes of the samples.
Select samples with similar materials, colors, and textures to actual mobile phone cases.
Set test conditions based on the actual use environment, including light intensity, temperature, and humidity.
Regularly observe and record the changes in the samples to capture the subtle changes during the aging process.
Ensure proper operation and maintenance of the test equipment, adhering to safety operating procedures.
Refer to relevant industry standards and specifications, such as ISO, ASTM, JIS, etc., to ensure the accuracy and comparability of the test.
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