Photoinitiator

Introduction

Photoinitiator absorbs a certain wavelength of ultraviolet (250-420nm) or visible light (400-800nm) energy, generating free radicals, or cations, etc., thereby initiating monomer polymerization and crosslinking curing compounds.

Photoinitiator Types

The full name of photoinitiator is UV curing photoinitiator, which can be divided into three categories:
1. Photoinitiator,
such as
2. Photosensitizer
Free radicals, such as BP, are formed by the hydrogen abstraction reaction and
DETX
EMK
OMB

3. Cationic photoinitiators,

such as
1130
1172
1176
1190

BXCure Photoinitiator Series

NameCompare asCasFeature
BXCURE TPOOmnirad TPO

Irgacure TPO

75980-60-8BXCure TPO is an efficient Photoinitiator for pigmented UV-curable coatings and printing inks as well as for UV-stabilized topcoats for outdoor use. BXCure TPO is used to initiate the photopolymerization of unsaturated prepolymers – e.g., acrylates – in combination with mono- or multifunctional monomers.
BXCURE-184Omnirad 184

Irgacure 184

947-19-3BXCure 184 is a highly efficient non-yellowing photoinitiator used to initiate the photopolymerization of chemically unsaturated prepolymers – e.g., acrylates – in combination with mono- or multifunctional vinyl monomers.
BXCURE-907Omnirad 907

Irgacure 907

71868-10-5BXCure 907 is a highly efficient photoinitiator that is used to initiate the photopolymerization of unsaturated prepolymers, e.g., acrylates, in combination with mono- or multifunctional vinyl monomers. BXCure 907 is especially suitable for pigmented UV-curable systems.
BXCURE-819Omnirad 819

Irgacure 819

162881-26-7BXCure 819 is a versatile photoinitiator for the radical polymerization of unsaturated resins upon UV light exposure. It is especially suitable for white-pigmented formulations, the curing of glass-fiber-reinforced polyester/styrene systems, and for clear coats for outdoor use in combination with light stabilizers. Thick section curing is also possible with this photoinitiator.
BXCURE-754Omnirad 754

Irgacure 754

211510-16-6 &

442536-99-4

BXCure 754 is a liquid photoinitiator that is used to efficiently initiate the photopolymerization of unsaturated prepolymers – e.g., acrylates – in combination with mono- or multifunctional vinyl monomers. BXCure 754 achieves a good balance between the requirements of low residual odor, low emission after
cure and efficient polymerization. An additional benefit is the minimal yellowing after curing.
BXCURE-651Omnirad 651

Irgacure 651

24650-42-8BXCure 651 is a highly efficient photoinitiator that is used to initiate the photopolymerization of unsaturated prepolymers, e.g., unsaturated polyesters or acrylates, in combination with mono- or multifunctional monomers.
BXCURE-369Omnirad 369E

Irgacure 369E

119313-12-1BXCure 369 E is the electronic grade of BXCure 369. It is a highly efficient UV-curing agent used to initiate the photopolymerization of chemically unsaturated prepolymers – e.g., acrylates – in combination with mono- or multifunctional monomers.
BXCure 369 E is especially suitable for pigmented UV-curable systems, photoresists, and printing plates.
BXCURE-500Omnirad 500

Irgacure 500

119-61-9

947-19-3

BXCure 500 is a blend of two photoinitiators. It is used to initiate the photopolymerization of chemically unsaturated prepolymers – e.g., acrylates – in combination with mono- or multifunctional monomers.
BXCure 500 is especially suitable for pigmented UV-curable systems, photoresists, and printing plates.
BXCURE-379Omnirad 379

Irgacure 379

119344-86-4BXCure 379 is a highly efficient UV-curing agent used to initiate the photopolymerization of chemically unsaturated prepolymers – e.g., acrylates – in combination with mono- or multifunctional monomers. BXCure 379 is especially suitable for pigmented UV-curable systems, photoresists and printing plates. Its excellent solubility (compared to BXCure 369) makes it easy to incorporate into nearly all formulations.
BXCURE-2959BXCure 2959

Irgacure 2959

106797-53-9BXCure 2959 is a highly efficient non-yellowing radical photoinitiator for the UV curing of systems comprising of unsaturated monomers and prepolymers.
BXCURE-127Omnirad 127

Irgacure 127

474510-57-1BXCure 127 is a highly efficient UV-curing additive used to initiate the photopolymerization of unsaturated prepolymers – e.g., acrylates – in combination with mono- or multifunctional monomers. BXCure 127 is especially suitable for all types of pigmented UV inks.
BXCURE-1173Omnirad 1173

Irgacure 1173

7473-98-5BXCure 1173 is a versatile highly efficient liquid photoinitiator that is used to initiate the photopolymerization of chemically unsaturated prepolymers – e.g., acrylates – in combination with mono- or multi-functional monomers.
BXCURE-BPBXCure BP

Irgacure BP

119-61-9BXCure BP is a photo initiator for various applications using UV-curing technology, e.g., UV coatings and UV printing inks.
BXCURE-ITXOmnirad ITX5495-84-1BXCure ITX is not suitable for light-colored systems due to the serious change of color after exposure. It is suitable for colored light-curing systems. Its main applications are: PCB inks, electronic product coatings, adhesives, printing inks, home decoration cosmetics packaging, etc.
BXCURE DETXOmnirad DETX

Irgacure DETX

82799-44-8BXCure DEXT main applications are PCB inks, coating and manufacturing of electronic products, adhesives, printing inks, home decoration, etc., suitable for UVLED applications

Selection guide

  1. Select appropriate photoinitiators according to the type of prepolymer and monomer.
  2. Food solubility and reactivity, less dosage, and high triggering efficiency.
  3. Shall have a certain thermal stability, does not decompose below 85 ℃, and should have long-term storage stability.
  4. It is better to use several photoinitiators in combination, which can initiate curing in different wavelength ranges, which is faster than a single photoinitiator.
  5. Photoinitiator is used in combination with amine accelerator EDAB.
  6. Small odor, no poison, and no environmental pollution.
  7. Cheap and easy to get low cost.
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Photoinitiator 907

photoinitiator

Photoinitiator Irgacure 907 Chemical information Chemical name: 2- Methyl-1-[4-(methylthio)phenyl]-2-morpholinopropanone-1 CAS Number: 71868-10-5 Chemical formula: C13H17NO2S Chemical structure Syonym name:  Irgacure 907, Omnirad 907 Properties: Appearance White powder Melting Point ℃ 73-76 Purity ≥99.0 Ash ≤0.1% Absorption Peak [nm] 231, 307 Features: Irgacure 184 is a highly efficient non-yellowing photoinitiator for inks, coating and adhesives application. low…

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Photoinitiator 1173

photoinitiator

Photoinitiator Irgacure 1173 Chemical information Chemical name: 2-Hydroxy-2-Methyl-Phenyl-Propane-1-one CAS Number: 7473-98-5 Chemical formula: C10H12O2 Chemical structure           Synonym name:  Irgacure 1173, Darocur 1173, Omnirad 1173 Properties: Appearance Transparent yellow liquid Purity ≥98.0 Color ≤100 Transmission 425nm≥98.0% Absorption Peak [nm] 244, 278, 330 Features: Irgacure 1173 is a liquid non-yellowing photoinitiator. Good solvency…

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Photoinitiator 184

photoinitiator

Photoinitiator Irgacure 184 Chemical information Chemical name: 1-Hydroxycyclohexyl phenyl ketone CAS Number: 947-19-3 Chemical formula: C13H16O2 Chemical structure           Synonym name: Irgacure 184, Omnirad 184 Properties: Appearance White crystalline powder Melting Point ℃ 46-50 Purity ≥99.0 Ash ≤0.1% Transmission 425nm≥98.0%，500nm≥98.0% Absorption Peak [nm] 244, 280, 330 Features: Irgacure 184 is a highly…