Irgacure 819
Bis (2,4,6-trimethylbenzoyl)-phenylphosphineoxide
162881-26-7
Ciba Specialty Chemicals
光触发剂
Photoinitiator
丙烯酸/丙烯酸盐树脂
Acrylic/Acrylate Resins
聚酯
Polyester
乙烯基
Vinyl
涂层 >> UV / 辐射线固化
Coatings >> UV / Radiation Curing
涂层 >> 水生
Coatings >> Waterborne
木器 &家具涂层
Wood & Furniture Coatings
IRGACURE 819 is a versatile photoinitiator for radical polymerisation
of unsaturated resins upon UV light exposure. It is especially suited
for white pigmented formulations, the curing of glass fiber reinforced
polyester/styrene systems and for clearcoats for outdoor use in
combinations with light stabilizers. Thick section curing is also
possible with this photoinitiator.
IRGACURE 819 may be used, after adequate testing, in UV curable
formulations for clear and for pigmented coatings on wood, metal,
plastic, paper and optical fibers as well as for printing inks and
prepregs. For patent reasons, however, the use of this product is not
allowed in dental applications.
IRGACURE 819 exhibits at low concentrations an outstanding curing
performance in highly opaque white and colored furniture coatings or
screen inks containing rutile titanium dioxide or colored pigments and
affords minimum yellowing after exposure to sufficient amounts of UV
radiation. Additionally the outstanding absorption properties of
IRGACURE 819 allow curing of thick sections.
IRGACURE 819 can be used in combination with other photoinitiators
such as IRGACURE 184 or IRGACURE 651. With the latter it is
especially suited to cure poyester/styrene resins as used for glass
reinforced materials.
Due to its photosensitivity at longer wavelengths, IRGACURE 819 can
easily be used in combinations with UV absorbers, e.g. TINUVIN Ò 400.
It is therefore ideally suited for use in weather-resistant UV curable
coatings.
The amount of IRGACURE 819 required for optimum performance
should be determined in trials covering a concentration range.
Versatile photoinitiator for radical polymerisation of unsaturated resins upon UV light exposure. Suited for white pigmented formulations and for clearcoats for outdoor use in combinations with light stabilizers. Thick section curing is also possible with this photoinitiator. May be used in UV curable formulations for clear and for pigmented coatings on wood, metal, plastic, paper and optical fibers. Not allowed in dental applications. Exhibits at low concentrations an outstanding curing performance in highly opaque white and colored furniture coatings containing rutile titanium dioxide or colored pigments. Affords minimum yellowing after exposure to sufficient amounts of UV radiation.
Can be used in combination with other photoinitiators. With the IRGACURE 651, it is especially suited to cure polyester/styrene resins as used for glass reinforced materials. Photosensitive at longer wavelengths. Can easily be used in combinations with UV absorbers. Suited for use in weather-resistant UV curable coatings.
Recommended usage level: 0.1-0.2% for clear acrylate & UPES/styrene coatings, 0.5-1.0% for white acrylate & UPES/styrene furniture coatings and for colored acrylate formulations.