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Photoinitiators are chemical compounds that, when exposed to UV light, convert the energy to initiate the curing of the formula. Photinitiators are indispensable components of UV-curable adhesives, inks, and coatings.

RAHN offers a wide variety of high-quality photoinitiators under the GENOCURE* trademark. Explore the below product portfolio to get acquainted with the applications and characteristics of each product and to be able to choose the appropriate solution for your formulations.

Incorporating composite raw materials with RAHN's GENOCURE* photoinitiators can significantly enhance the mechanical properties and durability of UV-curable systems, making them ideal for advanced applications in aerospace, automotive, and electronics industries where performance and reliability are paramount.

  • GENOCURE* BAPO 光引发剂
  • GENOCURE* BDK 光引发剂
  • GENOCURE* BDMM 光引发剂
  • GENOCURE* BMS 光引发剂
  • GENOCURE* BP 光引发剂
  • GENOCURE* CPK 光引发剂
  • GENOCURE* CQ 光引发剂
  • GENOCURE* DEAP 光引发剂
  • GENOCURE* DETX 光引发剂
  • GENOCURE* DMHA 光引发剂
  • GENOCURE* EMK 光引发剂
  • GENOCURE* ITX 光引发剂
  • GENOCURE* LBC 光引发剂
  • GENOCURE* LBP 光引发剂
  • GENOCURE* LRT 光引发剂
  • GENOCURE* LTD 光引发剂
  • GENOCURE* LTM 光引发剂
  • GENOCURE* MBB 光引发剂
  • GENOCURE* MBF 光引发剂
  • GENOCURE* PBZ 光引发剂
  • GENOCURE* PMP 光引发剂
  • GENOCURE* TPO 光引发剂
  • GENOCURE* TPO-L 光引发剂
  • GENOPOL* BP-5 光引发剂

FAQ on Photoinitiators

What are the types of photoinitiators?

They can be classified into two main types: Free Radical Photoinitiators: These generate free radicals, which initiate polymerization in formulations like styrene or acrylate. They are divided into Type I (unimolecular bond cleavage) and Type II (bimolecular reaction). Cationic Photoinitiators: They can also be distinguished by their molecular architecture — for applications requiring low migration and low odour, a polymeric photoinitiator offers an alternative to standard monomeric grades by binding the active chromophore to a polymer backbone. When exposed to UV light, they form acids that start the polymerization process. Cationic photoinitiators are known for their efficient curing, strong adhesion, and resistance to chemicals. They are ideal for coatings in various industries like printing and packaging.
 

What is the most common photoinitiator?

The most common photoinitiators are benzoin methyl ether and camphorquinone. These are widely used in UV-curing applications such as polyester acrylate formulations due to their efficiency and reliability in initiating the curing process.
 

Are photoinitiators toxic?

Photoinitiators are generally safe when used correctly in UV-curing processes, but some can be toxic if mishandled or exposed in large quantities. It's important to follow safety guidelines and handle them with care, especially in industrial settings.
 

What activates a photoinitiator?

Photoinitiators are activated by UV light. When exposed to UV radiation, they absorb the energy and undergo a chemical reaction that initiates the curing of UV-curable materials, such as coatings, inks, and adhesives.