Solid Photoinitiator
2,4,6-Trimethylbenzoyl-diphenyl-phosphine oxide (TPO) solid photoinitiator with a broad absorption spectrum extending to 420 nm, enabling effective curing under visible light and deep UV LED sources. Its high sensitivity and ability to cure through thick and pigmented layers make it essential for white and colored UV-curable coatings. Available in polymer-bound form to minimize migration in food contact applications.
مشخصات فنی
| purity | ≥ 98% |
| appearance | Light yellow to yellow powder |
| melting point | 91 – 95°C |
| absorption max | 370 nm and 416 nm |
| loss on drying | ≤ 0.5% |
حوزههای کاربرد
- White and pigmented UV-curable coatings
- LED UV offset and screen printing inks
- UV-curable 3D printing resins
- Dental photopolymer materials
- Thick-section UV-cured composites
ویژگیهای محصول
- Broad absorption to 420 nm — curable under visible LED
- Excellent performance in white and pigmented systems
- High cure speed and depth in thick sections
- Polymer-bound grades available for low migration
- Excellent compatibility with acrylate oligomers