Specification
Ultraviolet absorber UV-234 (also known as light stabilizer UV-234) is a highly efficient benzotriazole class ultraviolet absorber. It effectively protects polymer materials from photodegradation by converting harmful ultraviolet energy into harmless heat energy for release, thereby significantly extending the service life of products.
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Molecular Formula: C30H29N3O |
Molecular Weight: 447.58 |
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CAS No: 70321-86-7 |
Appearance: White or Light crystalline powder |
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Assay:99% |
Melting point(℃): 137℃~141℃ |
Features
UV 234 is an UV absorber used in high temperature processing environment.
| Advantage | Description |
|---|---|
| Highly Efficient UV Absorption | Strong absorption capacity in the 270-380 nm range, effectively protecting materials |
| Excellent Thermal Stability | Heat resistance >200°C, suitable for high-temperature processing and high-temperature curing systems |
| Low Volatility | Low volatilization loss during high-temperature processing, particularly suitable for high surface area applications such as films and fibers |
| Good Compatibility | Excellent compatibility with various polymers, low tendency to bloom |
| Low Color Contribution | Minimal impact on substrate color, suitable for light-colored and transparent products |
| Extraction Resistance | Good resistance to water and solvent extraction |
Applications
It is mainly used for polycarbonate and polycarbonate blends, and can also be used in automotive coatings. Applications include molded articles, films, sheets and fibers.
1. Plastics Industry (Primary Application)
Suitable for a wide range of engineering plastics and commodity plastics, especially recommended for:
| Resin Type | Applicability Description |
|---|---|
| Polycarbonate (PC) | Specially recommended, heat resistance up to 330-350°C |
| Polyester (PET, PBT) | Specially recommended, suitable for fibers and films |
| Polyamide (PA) | High-temperature processing stability for nylon materials |
| Polyoxymethylene (POM) | Suitable for both homopolymer and copolymer acetal |
| Polyphenylene Sulfide (PPS) | Preferred choice for high-temperature engineering plastics |
| Polyvinyl Chloride (PVC) | Outdoor applications for rigid PVC |
| Polystyrene (PS, HIPS) | Improves weatherability |
| ABS, SAN | Improves outdoor aging resistance |
| Polymethyl Methacrylate (PMMA) | Maintains transparency and weatherability |
| Thermoplastic Elastomers (TPE, TPV) | Extends service life of products |
2. Coatings Industry
Suitable for high-performance coating systems:
Powder Coatings: Resists high-temperature baking, protects the coating
Coil Coatings: Improves outdoor weatherability
Solvent-borne Coatings: Automotive paints, industrial coatings
3. Fibers and Films
Due to low volatility and good compatibility, particularly suitable for:
Polyester Fibers: Mass coloration and outdoor textiles
Agricultural Films: Extends service life
Packaging Films: UV protection for transparent products
4. Other Applications
Automotive interior and exterior parts
Electronic and electrical enclosures
Building materials (pipes, sheets, profiles)
Wires and cables
Package & Storage
25kg/ fiber drums. It can be packed in other forms according to user's requirements.
Shelf life: not more than 24 months in the room temperature.
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