Ningbo Inno Pharmchem Co., Ltd. is a leading supplier of high-quality specialty chemicals for various industries. One of their flagship products is the Ultraviolet Absorber UV-326, also known as BASF TINUVIN 326. This light stabilizer is widely used in the plastic, coating, and adhesive industries to protect against UV radiation and other environmental factors that can cause material degradation.
What is UV-326?
UV-326 is a type of benzotriazole-based ultraviolet absorber that acts as a light stabilizer. It is a highly effective agent that can absorb both UVA and UVB radiation, which are the main causes of material degradation. UV-326 is a white crystalline powder that is soluble in organic solvents like acetone, chloroform, and toluene. It has a melting point of 137-141°C and a molecular weight of 357.87 g/mol.
How Does UV-326 Work?
UV radiation can cause various types of damage to polymers, including discoloration, embrittlement, cracking, and loss of mechanical properties. UV-326 works by absorbing the energy from UV radiation and dissipating it as heat, thus preventing it from reaching the substrate. This process is known as photoabsorption, and it is a common mechanism used by many types of UV absorbers.
UV-326 is particularly effective because it has a high molar extinction coefficient, which means that it can absorb a significant amount of UV radiation even at low concentrations. It also has a broad absorption spectrum, which allows it to protect against a wide range of wavelengths. UV-326 can be used alone or in combination with other types of UV absorbers, such as hindered amine light stabilizers (HALS), to provide synergistic effects.
Applications of UV-326
UV-326 is widely used in the plastic, coating, and adhesive industries to improve the durability and longevity of various materials. It can be used in a variety of applications, including:
1. Polyolefin plastics: UV-326 can be used in polyethylene (PE) and polypropylene (PP) to improve their weatherability and resistance to degradation caused by UV radiation. It can also improve the color stability of thermoplastic elastomers (TPEs) and thermoplastic olefins (TPOs).
2. PVC plastics: UV-326 can be used in PVC to improve its weatherability and prevent discoloration and degradation caused by UV radiation. It is commonly used in outdoor applications such as window profiles, siding, and roofing.
3. Coatings and paints: UV-326 can be used in solvent-based and water-based coatings to improve their resistance to UV radiation and prevent fading, chalking, and other forms of degradation. It is commonly used in automotive coatings, wood coatings, and industrial coatings.
4. Adhesives and sealants: UV-326 can be used in adhesives and sealants to improve their weatherability and prevent degradation caused by UV radiation. It is commonly used in construction adhesives, sealants, and caulks.
Advantages of UV-326
UV-326 has several advantages over other types of UV absorbers, including:
1. High efficiency: UV-326 has a high molar extinction coefficient, which means that it can absorb a significant amount of UV radiation even at low concentrations.
2. Broad absorption spectrum: UV-326 can protect against a wide range of UV wavelengths, making it an effective light stabilizer for various applications.
3. Good compatibility: UV-326 is compatible with many types of polymers, coatings, and adhesives, making it easy to incorporate into existing formulations.
4. Low volatility: UV-326 has a low vapor pressure and is not volatile, which means that it does not evaporate or migrate over time.
5. Environmentally friendly: UV-326 is non-toxic and does not contain any heavy metals or other harmful substances, making it safe for use in food packaging and other sensitive applications.
Conclusion
UV-326 is a highly effective ultraviolet absorber that can provide superior protection against UV radiation and other environmental factors. As a leading manufacturer and supplier of specialty chemicals, Ningbo Inno Pharmchem Co., Ltd. offers high-quality UV-326 that can be tailored to meet the specific needs of various industries. Whether you are looking for a light stabilizer for plastics, coatings, or adhesives, UV-326 is an excellent choice that can provide long-lasting protection and improve the durability of your materials.
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