Yellowing resistance test chamber

The yellowing resistance test chamber, a key testing device in the field of materials science, accurately evaluates the color stability of materials during long-term use by simulating sunlight ultraviolet radiation and high-temperature environments. This equipment is widely used in industries such as plastics, rubber, textiles, coatings, and electronic products, providing a scientific basis for product quality control and material development.

Applications

Test method for determining the yellowing resistance of light and white products, such as upper and bottom materials for shoes, to approximate sunlight and ultraviolet light. According to the light-colored or white products, the phenomenon of yellow color is easy to occur in the natural sunlight for a long time, with the solar lamp and heating temperature control device to simulate the natural environment, within the specified time, observe the change of the surface color of the sample, determine the degree of discoloration of the sample, so as to determine the ability of the material to resist yellow under sunlight radiation.

Standards

HG/T3986:Plastic tower filler

ASTM D1748-24:Standard Test Method for Rust Protection by Metal Preservatives in the Humidity Cabinet

Features

This machine is designed to promote the metamorphism of vulcanized materials and then calculate the rate of change, stretching, and elongation. It also simulates the effects of ultraviolet radiation and heat from the sun. Samples are placed on the machine's table and subjected to UV radiation and temperature. Over time, the degree of yellowing and discoloration of the samples is observed, and the grayscale values can be used as a reference to determine the extent of yellowing. This is relevant to products that are exposed to radiation or sunlight during transportation.

The machine addresses the impact of color changes in the container environment on product quality.  Using a 300W UV lamp, the experiment can be completed in a shorter time. This machine can be used as a basic yellowing resistance testing machine, an aging testing machine, and an oven, demonstrating its multi-functional capabilities. The machine is equipped with a forced hot air circulation control system to ensure uniform temperature distribution.

Technical Parameters