Photoinitiatoren sind chemische Verbindungen, die, wenn sie UV-Licht ausgesetzt werden, die Energie umwandeln, um die Aushärtung der Formel einzuleiten. Photoinitiatoren sind unverzichtbare Bestandteile von UV-härtenden Klebstoffen, Druckfarben und Beschichtungen.

RAHN bietet unter dem Markennamen GENOCURE* eine große Auswahl an hochwertigen Fotoinitiatoren an. Machen Sie sich mit den Anwendungen und Eigenschaften der einzelnen Produkte vertraut und wählen Sie die passende Lösung für Ihre Formulierungen.

Beispielsweise durch die Kombination von Verbundwerkstoffe mit den GENOCURE*-Photoinitiatoren von RAHN können die mechanischen Eigenschaften und Effizienz von UV-härtbaren Systemen deutlich verbessert werden, was die UV LED Härtung besonders effizient und zuverlässig macht. Damit sind sie ideal für fortschrittliche Anwendungen in der Luft- und Raumfahrt, der Druck-, Automobil- und der Elektronikindustrie, bei denen Leistung und Zuverlässigkeit an erster Stelle stehen.

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

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.