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Six Causes of Plastic Yellowing Part 5: Gas Fading
Knowledge Hub
Six Causes of Plastic Yellowing Part 5: Gas Fading
Plastic yellowing can occur even in dark storage when NOx reacts with phenolic antioxidants. This guide explains the gas-fading mechanism and key testing methods.
Six Causes of Plastic Yellowing Part 4: Additives and Impurities
Knowledge Hub
Six Causes of Plastic Yellowing Part 4: Additives and Impurities
Metal ions, pigment breakdown, and TiO₂ quality can cause plastics to yellow—even with identical formulations.
Six Causes of Plastic Yellowing Part 3: The “Side Effect” of Antioxidants
Knowledge Hub
Six Causes of Plastic Yellowing Part 3: The “Side Effect” of Antioxidants
Phenolic antioxidants may cause yellowing as they age, forming quinones and surface blooming detectable by UV-Vis or FTIR-ATR.
Yellowing
Six Causes of Plastic Yellowing Part 2: Thermal Oxidation
Knowledge Hub
Six Causes of Plastic Yellowing Part 2: Thermal Oxidation
Understand how heat accelerates polymer aging through thermal oxidation — from bond breakage and peroxide formation to chain scission and yellowing.
Yellowing
Six Causes of Plastic Yellowing Part 1: Photo-oxidation
Knowledge Hub
Six Causes of Plastic Yellowing Part 1: Photo-oxidation
Why do plastics turn yellow? Sunlight triggers a hidden chemical chain — UV, oxygen, and radicals slowly turn clear plastics brown. Discover the science behind photo-oxidation.
Yellowing
The Science of Stability: How UV Absorbers Extend Material Performance
Knowledge Hub
The Science of Stability: How UV Absorbers Extend Material Performance



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