Photoinitiators are an essential component in the formulation of radiation-curable coatings, inks, and adhesives. They are responsible for initiating the polymerization process when exposed to UV light. Among the various photoinitiators available in the market, PI-1173 stands out for its versatility and compatibility with different systems.

Manufactured by Ningbo Inno Pharmchem Co., Ltd., PI-1173 is a highly efficient photoinitiator that belongs to the acetophenone family. It is also known by other names, such as 2-Hydroxy-2-methyl-1-phenyl-1-propanone, α-Hydroxy-α-methylpropiophenone, and 2-Hydroxy-2-methylpropiophenone. Its chemical structure comprises a benzene ring with a ketone and a hydroxyl group attached to it.

PI-1173 is a white crystalline powder that is soluble in organic solvents such as ethanol, acetone, and ethyl acetate. It has a melting point of 48-50°C and a boiling point of 144-146°C. It has a high purity level of above 99%, making it suitable for use in various applications.

One of the primary advantages of PI-1173 is its broad absorption spectrum, which makes it suitable for use with different types of UV lamps and sources such as LEDs, mercury vapor lamps, and metal halide lamps. It exhibits a maximum absorption at 250-360 nm, which overlaps with the emission spectrum of most UV sources.

PI-1173 is also highly reactive and can initiate the polymerization process at low concentrations. Its reactivity is due to the presence of the hydroxyl group, which can undergo hydrogen abstraction and generate free radicals upon UV irradiation. This property makes PI-1173 suitable for use in formulations requiring fast curing speeds.

Additionally, PI-1173 is compatible with various monomers and oligomers such as acrylates, methacrylates, epoxies, and vinyl ethers. It can be used in formulations intended for various substrates such as plastic, metal, wood, and paper. Its versatility makes it suitable for use in various applications such as coatings, adhesives, inks, and 3D printing.

PI-1173 is also known for its low toxicity and low odor, making it suitable for use in food packaging and medical applications. It complies with various regulations such as FDA, REACH, and RoHS. It is also stable under storage conditions and has a shelf life of up to two years.

In conclusion, PI-1173 is a versatile photoinitiator suitable for various applications. Its broad absorption spectrum, high reactivity, and compatibility with different systems make it an attractive option for formulators. Its low toxicity and compliance with various regulations make it suitable for use in food and medical applications. Ningbo Inno Pharmchem Co., Ltd. is a reliable supplier of PI-1173, providing high-quality products and excellent customer service.

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