UV Absorber

UV Absorbers

1. Definition & Mechanism

UV absorbers are additives that protect materials from UV degradation by:

Absorbing harmful UV radiation (290–400 nm)Converting it into harmless heat energyPreventing chain reactions (e.g., polymer breakdown, color fading)

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2. Key Applications

Industry	Protected Materials	Common UV Absorbers
Polymers	Plastics (PP, PVC), rubber	Benzotriazoles (e.g., Tinuvin 328)
Coatings	Paints, automotive finishes	Hindered Amine Light Stabilizers (HALS)
Textiles	Synthetic fibers, outdoor fabrics	Hydroxyphenyl-triazines (e.g., Cyasorb)
Cosmetics	Sunscreens, skincare	Octinoxate, Avobenzone

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3. Advantages

Material Protection:Extends product lifespan by 50–300%Prevents yellowing, cracking, and loss of mechanical strengthPerformance:Broad-spectrum coverage (UVA + UVB)Low migration (for long-term stability)

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4. Technical Specifications

Property	Typical Value
UV Absorption	290–400 nm (tailorable)
Thermal Stability	Up to 300°C (for plastics)
Compatibility	Works with most resins/polymers
Load Rate	0.1–2.0% by weight

Declaration: The products displayed on this website are intended exclusively for industrial applications or scientific research. They are not intended for medical, pharmaceutical, or food use. In accordance with applicable laws and regulations, purchasing organizations must hold valid qualifications and approvals.