BASF Tinuvin 320 - The Ultimate Solution for UV Stabilization
The damaging effects of ultraviolet (UV) radiation on materials, especially polymers, are well documented. The consequences can range from discoloration, embrittlement, and cracking to complete failure of the material. Therefore, it is crucial to incorporate a UV stabilizer into the formulation to protect the material from the harmful effects of UV radiation.
BASF Tinuvin 320 is a highly effective UV stabilizer that provides excellent protection against the damaging effects of UV radiation. It belongs to the class of benzotriazole-based stabilizers and is widely used in various applications, including coatings, adhesives, plastics, and fibers.
Chemical Structure and Properties
BASF Tinuvin 320 has a molecular weight of 323.4 and a chemical formula of C22H29N3O. It is a white crystalline powder that is soluble in organic solvents such as acetone, methanol, and chloroform. The melting point of Tinuvin 320 is 136-140°C.
The chemical structure of Tinuvin 320 consists of a benzotriazole unit with two bulky tert-butyl groups at the 4 and 6 positions and a hydroxyphenyl group at the 2 position. This unique structure provides excellent UV absorption and stabilization properties.
UV Absorption and Stabilization Mechanism
BASF Tinuvin 320 absorbs UV radiation in the range of 290-400 nm, which corresponds to the most damaging portion of the solar spectrum. It works by absorbing the UV radiation and converting it into harmless thermal energy. This prevents the UV radiation from reaching the polymer matrix and causing damage.
Furthermore, Tinuvin 320 acts as a free radical scavenger, which inhibits the formation of free radicals that can cause chain scission and degradation of the polymer. It also acts as a quencher of excited states, which prevents the energy transfer from the excited state to the polymer matrix.
Applications
BASF Tinuvin 320 is a versatile UV stabilizer that finds use in a wide range of applications. It is widely used in coatings, adhesives, and sealants to protect against the damaging effects of UV radiation. It is also used in fibers and films to improve their weatherability and durability.
In the automotive industry, Tinuvin 320 is used in exterior automotive parts, such as bumpers and side moldings. It is also used in interior components, such as dashboards and door panels, to prevent discoloration and cracking.
In the construction industry, Tinuvin 320 is used in building materials, such as roofing membranes, to protect against UV radiation and prolong their service life.
Conclusion
BASF Tinuvin 320 is a highly effective UV stabilizer that provides excellent protection against the damaging effects of UV radiation. Its unique chemical structure and mechanism of action make it a versatile and reliable solution for UV stabilization. INNO SPECIALTY CHEMICALS is the manufacturer and supplier of Tinuvin 320 from China, and they offer high-quality products that meet the stringent requirements of various industries. Incorporating Tinuvin 320 into the formulation can significantly improve the weatherability and durability of the material, making it a wise investment for any application that requires protection against UV radiation.
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