BASF IRGACURE 184 Photoinitiator

Features Of BASF IRGACURE 184 Photoinitiator

1. Efficient UV initiation - Rapid free-radical generation under UV, accelerating curing speed, shortening production cycle

2. Excellent non-yellowing - Minimal yellowing, suitable for outdoor and light-colored systems, ensuring long-term color stability

3. Superior miscibility & compounding - Compatible with most monomers/oligomers, usable alone or with other photoinitiators

4. High thermal stability & low migration - Good thermal stability, low migration, suitable for food-contact compliant formulations

5. Easy processing & wide adaptability - Easy to disperse, suitable for various film thicknesses, consistent batch performanc

Typical Applications Of BASF IRGACURE 184 Photoinitiator

1. Acrylic UV-curable varnishes - For paper, metal, plastic surfaces, improving gloss and weather resistance

2. Outdoor wood/plastic UV coatings - Suitable for outdoor weathering requirements, minimizing yellowing, ensuring long-lasting color

3. Flexo/screen UV inks - For packaging printing, enabling rapid curing and color stability

4. Electronic coatings - For PCB solder masks, optical film coatings, ensuring fine-pattern curing

5. Water-based UV dispersions - Suitable for water-based UV-curable coatings, ensuring curing efficiency and storage stability

Specifications Of BASF IRGACURE 184 Photoinitiator

BASF IRGACURE 184 Photoinitiator – Frequently Asked Questions (FAQ)

Q1: What is the primary mechanism of photoinitiation for IRGACURE 184?

A: IRGACURE 184 is a Type I photoinitiator that undergoes efficient α-cleavage upon UV irradiation (typically 250–350 nm), generating two reactive benzoyl and methyl radicals capable of initiating free-radical polymerization of acrylates and methacrylates.

Q2: Is IRGACURE 184 suitable for use in food-contact or medical-grade formulations?

A: IRGACURE 184 is widely used in coatings and inks intended for indirect food contact applications; however, final regulatory compliance depends on the complete formulation, processing conditions, and applicable regional regulations—users must conduct appropriate migration testing and consult current regulatory guidance before commercial use.

Q3: How does IRGACURE 184 perform in pigmented systems?

A: Due to its strong absorption in the near-UV range, IRGACURE 184 may exhibit reduced efficiency in highly pigmented or opaque formulations; optimal performance is typically achieved in clear or lightly tinted systems, and synergistic combinations with longer-wavelength photoinitiators are often recommended for pigmented applications.

Q4: What is the typical dosage range for IRGACURE 184 in UV-curable formulations?

A: Dosage depends on formulation composition, film thickness, and irradiation conditions, but IRGACURE 184 is generally used at low concentrations—commonly ranging from 0.1% to 2% by weight relative to total formulation solids.

Q5: Does IRGACURE 184 require thermal post-cure to achieve full properties?

A: No—IRGACURE 184 enables rapid, room-temperature curing under appropriate UV exposure; full conversion and final properties are typically achieved during the primary UV exposure step without mandatory thermal treatment, though post-cure may be applied optionally for specific performance enhancements.