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Application: Can be used in UV coatings, UV inks, UV adhesives, photoresists, photopolymerizable plates, composites, dental fillings, etc.
Contact UsDescription
Product: (784) Photoinitiator
CAS#125051-32-3
Lencolo 5021 is an excellent visible photoinitiator. Its initiation process is neither cleavage nor hydrogen capture, but after absorbing light energy, the photoisomerisation becomes a cyclic light reaction intermediate, and ligand substitution occurs with the ester carbonyl group of the acrylate ester in the oligomer and reactive diluent, generating free radicals and initiating polymerisation and cross-linking. It has bleaching effect after photolysis, and is very suitable for visible light curing of thick coatings, and can cure coatings with a thickness of more than 70um.
Chemical & physical data
| Molecular formula | C30H22F4N2Ti |
|---|---|
| Molecule weight | 534.4 |
| Ingredients | Bis-2,6-difluoro-3-pyrrolephenyl titanocene |
| Appearance | Yellow or orange powder |
| Melting point | 160-162 |
| Purity (%) | ≥99 |
| Volatile content(%) | ≤0.5 |
| Ash content(%) | ≤0.1 |
| Absorption peak(nm) | 398、470 |
Application
Can be used in UV coatings, UV inks, UV adhesives, photoresists, photopolymerizable plates, composites, dental fillings, etc.
Usage method
Solubility (20℃, g/100g)
| solvent or monomer | acetone | methyl ethyl ketone | toluene | HDDA | TMPTA |
|---|---|---|---|---|---|
| Solubility | 30 | 30 | 10 | 22 | 5 |
Addition amount: 3~4%,
Users are advised to determine the optimum dosage by experiment before use.
Storage, shelf time and Packing
To prevent the product from polymerization and gelling, please keep it sealed and away from heat and light. Recommended storage temperature is not higher than 30°C. Unused products must be sealed and stored in a timely manner and cannot be stored in the open. Safe storage time is 6 months at room temperature( 25ºC) and under ventilation. 20KG/bag
Tips:Lencolo 5021 has good absorption of visible light, has a bleaching effect, and is used in PCB inks and dental fillings.
Note: Technical data represents typical values only. In view of the differences in formulas, production process, conditions, all the above statements must be adjusted according to the actual situation, our company does not make any promises. Our company reserves the right to reform its products without prior notice of any changes.