Photoinitiator 1173 for UV radiation curing systems

Product Introduction
Photoinitiator 1173 is a liquid type, non-yellowing photoinitiator. It was first proposed by Merck in the 1980s, and the original name was DAROCUR 1173. Good solvency makes it an ideal material for making photoinitiator mixtures. It is the first choice for inks for wood, metal and plastics, as well as UV curable adhesives.

Physical parameters

Soluble
Insoluble in water, soluble in most organic solvents; compatible with most unsaturated prepolymers, resins and monomers used in UV curing industry.

Specifications

Application
Photoinitiator 1173 undergoes homolysis and intramolecular destruction under the irradiation of ultraviolet light to generate a pair of free radicals, thereby initiating the polymerization of the ultraviolet curing system. It does not require a hydrogen donor to initiate its free radicals. But its free radicals are very sensitive to oxygen in the air. It is the first initiator for non-yellowing clear coats. Since it is a liquid type and has good solvency, it is easy to handle and formulate. It uses unsaturated acrylic acid monomer as active diluent to initiate system polymerization. The usage rate of photoinitiator 1173 varies according to system composition, light source, line speed and film thickness, but is usually between 0.5% and 5% w/w. Adding photosensitizers such as ITX and DETX can greatly increase the curing speed. Photoinitiator 1173 can be used in printing ink, solder resist; overprint varnish and wood paint, adhesive and photoresist dry film.

Storage Conditions
Must be stored in a closed container in a dark, dry place.

Packaging
25kg plastic drum/200kg iron drum.

Clarify

Application
Photoinitiator 1173 undergoes homolysis and intramolecular destruction under the irradiation of ultraviolet light to generate a pair of free radicals, thereby initiating the polymerization of the ultraviolet curing system. It does not require a hydrogen donor to initiate its free radicals. But its free radicals are very sensitive to oxygen in the air. It is the first initiator for non-yellowing clear coats. Since it is a liquid type and has good solvency, it is easy to handle and formulate. It uses unsaturated acrylic acid monomer as active diluent to initiate system polymerization. The usage rate of photoinitiator 1173 varies according to system composition, light source, line speed and film thickness, but is usually between 0.5% and 5% w/w. Adding photosensitizers such as ITX and DETX can greatly increase the curing speed. Photoinitiator 1173 can be used in printing ink, solder resist; overprint varnish and wood paint, adhesive and photoresist dry film.

Storage Conditions
Must be stored in a closed container in a dark, dry place.

Packaging
25kg plastic drum/200kg iron drum.