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UV absorber UV-571

Advantage:

  • ‍UV absorber UV-571  is a liquid benzotriazole type ultraviolet absorber, capable of absorbing ultraviolet rays ranging from 280 to 380nm, with absorption peaks at 303nm and 343nm. It has the characteristics of high temperature resistance, resistance to extraction, low volatility, and low migration. 
  • It also has good compatibility, good dispersion, high thermal stability, and high absorption efficiency. It is easy to emulsify water-based systems. The dispersion in the water-based system can be obtained by dissolving in water-based solvents such as diethylene glycol dimethyl ether. 
  • It is suitable for thermoplastic polyurethanes, polyurethane plastics, polyurethane coatings, polyurethane adhesives, hard PVC, PVB, PVDC, PMMA, EVOH, EVA, PET spinning, PA spinning, PP spinning, thermosetting unsaturated polyester, and styrene-based polymers. General usage: 0.5%-1.0% for adhesives; 0.3%-0.5% for polyvinyl chloride; 1.0-5.0% for composite polyvinyl chloride.‍

Applications:

Used in  plastic PVC, PVB, PMMA, PVDC, EVOH, EVA, heat curing unsaturated resin and PA, PET and PUR coil, and the PP fiber

Package: 

25KG plastic drum

Storage and Transportation:

Keep container tightly closed and dry and storage in cool place.

Note: The data contained here are based on our current knowledge and experience. It is the responsibility of user to test our products before the final application.

Technical Specifications

  • ‍Product Name: UV absorber UV-571
  • CAS No.: 125304-04-3
  • Chemical Name:2-(2H-benzotriazol-2-yl)-6-dodecyl-4-methyl phenol 
  • Molecular Formula: C25H35N3O
  • Molecular Weight: 393.6
  • Other Name:Tinuvin 571,Sumisorb 330,Songsorb 5710
  • Appearance: Light amber viscous liquid‍

Purity

≥95%

Ash

≤0.1%

Loss On Drying

≤2.0%

Density

1.07g/cm3

Viscosity

1800-2000mPa.s

Refractive Index

1.571-1.579

Transmittance

460 nm≥90%   500 nm≥95%

Solubility

(20oC:g/100g Solvent)

Water

Ethanol

N-hexane

Ethyl acetate

Toluene

<0.01

12

>50

>50

>50

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