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

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.

Photosensitizer 395

Photosensitizer 395   Chemical Name 2,4-Oxazolidinedione,5-[[4-(dipenylamino)phenyl]methlene-3-(2-phenylethyl)- CAS NO. 506426-96-6 Appearance Yellow crystal powder Purity ≥98% Melting Point 144-146*C Advantages 1) Good thermal stability 2) Excellent photoinitiating activity 3) Can promote the sensitivity of photoinitiator Application Can transfer energy, promote UV coating react quickly, and improve photosensitivity and photocuring efficiency. It can be widely used in…

Photoinitiator 261

Photoinitiator 261   Chemical Name (Cumene)cyclopentadienyliron(II) hexafluorophosphate CAS NO. 32760-80-8 Appearance Yellow Powder Purity ≥98% Melting Point 80-84 *C Absorption Peak 300nm 390nm 450nm Advantages 1) Wide range of UV absorption 2) Good thermal stability, High solubility 3) Low-volatility, mild-smell, and environment friendly Application Wide range of UV absorption, extending to the visible region. Especially…

Photoinitiator 262

Photoinitiator 262   Chemical Name h-cumene)-(h-cyclopentadienyl)iron(II) hexafluoroantimonat CAS NO. 100011-37-8 Appearance Yellow Powder Purity ≥98% Melting Point 83-85*0 Absorption Peak 300nm 390nm 450nm Advantages 1) Wide absorption range, can cure under visible light 2) Good thermal stability. High solubility 3) Low volatility, mild-smell and environmentally friendly Application Photoinitiator 262 can cure under visible light and…

Photoinitiator ITX

Photoinitiator Irgacure ITX Chemical Name 2-isopropyl thioxanthone Synonym name Omnirad ITX, irgacure ITX CAS NO. 5495-84-1 Appearance Yellowish Powder Purity ≥99% Melting Point 70-76*0 Absorption Peak 258nm 382nm Advantages 1) Fast photocuring speed 2) Can be used in clear or colorful UV coating or ink 3)  Excellent photoinitiating activity Application Mainly used as a photoinitiator…

Photoinitiator 369

Photoinitiator Irgacure 369 Chemical Name 2-benzyl-2-(dimethylamino)-4’-morpholinobutyrophenone Synonym name Omnirad 369, irgacure 369 CAS NO. 119313-12-1 Appearance Yellowish Powder Purity ≥99% Melting Point 110-119℃ Absorption Peak 206nm 323nm Advantages 1) Fast photocuring speed and high sensitivity 2) Good performance in color system 3) Low-volatility, mild-smell and environment friendly Application Mainly used as a photoinitiator in Etch…

Photoinitiator TPO-L

Photoinitiator Irgacure TPO-L Chemical Name Ethyl (2, 4, 6-trimethylbenzoyl) pheny1phosphinate Synonym name Omnirad TPO-L, irgacure TPO-L CAS NO. 84434-11-7 Appearance Yellow Liquid Purity ≥95% Absorption Peak 369nm Advantages 1) Fast photocuring speed 2) Low volatility, mild-smell and environment friendly 3) Anti-yellowing Application Mainly used in white system.

Photoinitiator MBF

Photoinitiator Irgacure MBF   Chemical Name Methylbenzoylformate Synonym name Omnirad MBF, irgacure MBF CAS NO. 15206-55-0 Appearance Yellowish Liquid Purity ≥99% Melting Point 17*C Absorption Peak 300nm 390nm 450nm Advantages   1) High-efficiency 2) Anti-yellowing Application Widely used in Overprint varnish and coatings for wood, plastics and metal.

Photoinitiator CBP

Photoinitiator CBP Chemical Name 4-chlorobenzophenon CAS NO. 134-85-0 Appearance White to Light Yellow Powder Purity ≥99% Melting Point 75-77*0 Absorption Peak 204nm 258nm Advantages 1) Fast photocuring speed 2) Low-volatility, mild-smell and environment friendly 3) Anti-yellowing

Photoinitiator BP

Photoinitiator Photoinitiator BP   Chemical Name Benzophenone Synonym name Omnirad BP CAS NO. 119-61-9 Appearance White flakes Purity ≥ 99. 5% Melting Point 46-49℃ Absorption Peak 256nm 330nm Advantages 1) Good thermal stability 2) Excellent photoinitiating activity Application Benzophenone is a widely-used UV photoinitiator, especially in inks, varnishes and related field.

Photoinitiator bdk

Photoinitiator Irgacure BDK Chemical name: 2,2-Dimethoxy-2-phenylacetophenone CAS Number: 24650-42-8 Chemical formula: C16H16O3 Chemical Structure Synonym name: Irgacure 651, Omnirad BDK Properties: Appearance White powder Melting Point ℃ 64-67℃ Purity ≥99.9 Volatile ≤0.05% Features: BDK is mainly used as the light curing agent for ultraviolet curing systems, applied to printing ink, paper and metal paints. Package:…