China (Mainland)
Diamondsupplier 
Bis(2,4,6-trimethylbenzoyl)-phenylphosphineoxide CAS NO.162881-26-7
- FOB Price: USD: 46.00-46.00 /Kilogram Get Latest Price
- Min.Order: 1 Kilogram
- Payment Terms: T/T
- Available Specifications:
Industrial Grade(1-10000)Kilogram
- Product Details
Keywords
- Photoinitiator XBPO
- Photoinitiator 819
- KEYCURE 981
Quick Details
- ProName: Bis(2,4,6-trimethylbenzoyl)-phenylphos...
- CasNo: 162881-26-7
- Molecular Formula: C26H27O3P
- Appearance: yellow powder
- Application: After testing, it can be used for prin...
- DeliveryTime: 15
- PackAge: 20KG
- Port: FOB SHANGAHI
- ProductionCapacity: 100 Metric Ton/Year
- Purity: 99%
- Storage: Keep away from light
- LimitNum: 1 Kilogram
- Grade: Industrial Grade
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 |
|
|