Chiguard® UV-234

1 of 12 products in this brand
Chiguard® UV-234 belongs to the family of substituted benzotriazoles which protect against ultraviolet radiation. Compared to other Chitec’s UV absorbers, Chiguard® 234 has lowest volatility which makes it especially useful for those applications involving high temperature processing.

Functions: Stabilizer

Chemical Family: Benzotriazoles

Compatible Polymers & Resins: Polyamide 6 (PA 6), Polycarbonates (PC), Polyethylene Terephthalate (PET), Polyoxymethylene (POM), Thermoplastic Elastomers (TPE)

Features: High Temperature Resistance, Low Volatility, UV Resistant

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Knowde Enhanced TDS

Identification & Functionality

Chemical Family
Plastics & Elastomers Functions

Features & Benefits

Applications & Uses

Applications

Chiguard® 234 is most suitable for polymer production where additive losses may occur during high temperature processing. Therefore, Chiguard® 234 has been widely used in the following area:

  1. PET fiber and film
  2. PC
  3. POM
  4. Nylon
  5. TPE compounding

A percentage of 0.1% - 0.5% of Chiguard® 234 is recommended for protection. Light stability of polymer can be further enhanced by use of a phenolic antioxidant (e.g. DEOX 10 and 76) and a hindered amine light stabilizer (e.g. Chiguard® 770 and 944) in the combination with Chiguard® 234.

Properties

Odor
Faint
Appearance
Slightly yellowish crystalline powder
Color No.
70321-86-7
Typical Properties
ValueUnitsTest Method / Conditions
Molecular Weight447.6
Boiling Pointmin. 300°C
Melting Point137 - 141°C
Bulk Density at 20°C0.67
Ethyl acetate Solubility (g in 100 ml solvent)7
Toluene Solubility (g in 100 ml solvent)25
Acetone Solubility (g in 100 ml solvent)2
Hexane Solubility (g in 100 ml solvent)1
Assaymin. 99%
Volatilesmax. 0.5%
Clarity in tolueneClear solution (5g/100ml)
Clarity in Toluene (5g/100ml)Clear solution-
Transmittance at 460 nmmin. 95%
Transmittance at 500 nmmin. 97%

Regulatory & Compliance

Certifications & Compliance

Technical Details & Test Data

UV Spectrum

Chiguard® UV-234 - Uv Spectrum

Packaging & Availability

Packaging Type
Packaging

25 kg net/fiber Drum

Storage & Handling

Storage

Must be stored in closed containers in dark dry conditions.