Over time, silicone products may appear yellow phenomenon, which not only affects the beauty of the product, but also makes consumers have doubts about its performance. The causes of yellowing of silica gel products and the effects of yellowing on their properties.
The reason why silicone products turn yellow
Ultraviolet radiation: silica gel products exposed to sunlight or strong ultraviolet radiation for a long time will cause photooxidation of organic matter in silica gel, causing the color to turn yellow.
Thermal aging: At high temperatures, silica gel molecular chains may break or cross-link, resulting in material color changes.
Chemical contamination: Exposure to certain chemicals, such as oils, solvents, oxidants, etc., may cause chemical reactions on the surface or inside of the silica gel, causing color changes.
Impurities: Impurities that may remain during the production of silica gel, such as metal ions, organic impurities, etc., may promote the oxidation and discoloration of silica gel under certain conditions.
Decomposition of additives: Some additives added to silica gel, such as antioxidants, colorants, etc., may decompose during long-term use, resulting in color changes in silica gel.
The effect of yellowing of silicone products
Appearance impact: The most direct impact of the yellowing of silicone products is the change in appearance, which may reduce the market appeal of the product, especially for those products that focus on aesthetics.
Performance impact: Under normal circumstances, the yellowing of silicone products does not mean a significant decline in their physical and chemical properties. The main properties of silica gel, such as mechanical strength, elasticity and heat resistance, are usually not affected by color changes.
Psychological impact: Consumers may have doubts about the quality and safety of the product because of the yellowing of silicone products, which may affect the market acceptance of the product.
How to prevent silicone products from turning yellow
Avoid ultraviolet radiation: When storing and using silicone products, try to avoid long-term exposure to sunlight or strong ultraviolet radiation.
Control the use of temperature: avoid the use of silicone products at too high a temperature to reduce the impact of thermal aging on silicone.
Choose high quality silicone: When purchasing, choose silicone products with reliable quality and reasonable additives to reduce the impact of impurities and additive decomposition on silicone.
Appropriate packaging: For silicone products that need to be stored for a long time, appropriate packaging materials and methods can be used to isolate external pollution and ultraviolet radiation.
The yellowing of silicone products is a common phenomenon, and the reasons mainly include ultraviolet radiation, thermal aging, chemical pollution, the influence of impurities and the decomposition of additives. Although the yellowing of silicone products may affect its appearance and the psychological feelings of consumers, it usually does not have a significant impact on its main performance. By avoiding ultraviolet radiation, controlling the use of temperature, choosing high-quality silicone and appropriate packaging and other measures, can effectively reduce the risk of silicone products yellowing.
