CasNo.162881-26-7,Bis(2,4,6-trimethylbenzoyl)-phenylphosphineoxide,(162881-26-7) Suppliers

1 Kilogram	FOB Price: USD 46.0000

Min.Order :1 Kilogram
Purity: 99%
Payment Terms : T/T

Keywords

Photoinitiator XBPO Photoinitiator 819 KEYCURE 981

Quick Details

Appearance:yellow powder
Application:After testing, it can be used for printing ink and pre impregnation system on the surface of wood, metal, plastic, paper and optical fiber.
PackAge:20KG
ProductionCapacity:100|Metric Ton|Year
Storage:Keep away from light
Transportation:

Superiority:

Keycure 981 is a versatile photoinitiator for radical polymerisation of unsaturated resins upon UV light exposure. It is specially 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.

Details:

Physical properties

Appearance	：	yellow powder
Purity %	：	99.0min
Melting Point (°C)	：	127.0-134.0
Absorption (nm)	：	360,365,405

Solubility at 20°C (g/100 g solution)
Acetone	14
Butylacetate	6
Methanol	3
Toluene	22
Hexanedioldiacrylate (HDDA)	9
Oligomeric acrylate	3

Applications Keycure 981 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.

Keycure 981 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 Keycure 981 allow curing of thick sections.

Keycure 981 can be used in combination with other photoinitiators such as Chemacure PI-184 or Chemacure 651. With the latter it is especially suited to cure polyester/styrene resins as used for glass reinforced materials.

Due to its photosensitivity at longer wavelengths, KEYCURE 981 can easily be used in combinations with UV absorbers, e.g. TINUVIN 400. It is therefore ideally suited for use in weather-resistant UV curable coatings. The amount of KEYCURE 981 required for optimum performance should be determined in trials covering a concentration range.

Recommended concentrations:

Clear acrylate & UPES/styrene coatings:	0.1 - 0.2 %KEYCURE 981		+ 1	- 2% Chemacure PI-184
White acrylate & UPES/styrene	0.5	- 1.0 %KEYCURE 981	+ 1	- 2% Chemacure PI-184
furniture coatings:

Colored acrylate formulations:	0.5	- 1.0 %KEYCURE 981	+ 1	- 2% IRGACURE 651
Colored acrylate formulations:	0.5	- 1.5 %KEYCURE 981	+ 1	- 2% Chemacure PI-184
Colored acrylate formulations:	0.2	- 0.4 %KEYCURE 981