phosphine oxidephenyl bis (246-trimetyl benzoyl)

GR-XBPO is a kind of photoinitiator with the same molecular structure as of the Ciba i-819 photoinitiator.

 GR-XBPO appears light yellow powderthe melting point is at 127-131 °Cand it has enough solubility in active diluents. Its typical absorptions are at 338nm370nm405 nm, and the maximum absorption wavelength can amount to 450 nm. Its photodissociation products are two benzoyl and one phosphorus acyl free radicals which are high initiation activity radicalsso its photoinitiation activity is better than TPO.

  Because GR-XBPO has photosensitiveness in the long wave bandit can be not only used alone but also co-used with other photoinitiators. GR-XBPO is suitable for being used in unsaturated polyester wood lacquerwhite wood lacquerresistant UV varnishUV powder japanninglow volatile and mild odor coatingthick coatingoptical fiber coatingadhesiveoffset printing inkscreen printing inkflexo inkand it also can be used in acrylic acid series wood varnishplastic metal varnish and paper gloss oilPCB anti-corrosion agent scaling powder and flexography. The usage of this product should on the basis of the results practical experimentand the suggested volume of addition is 0.1-5%.

  In consideration of that GR-XBPO also absorbs a little in the visible regionit should be protected from light in the process of storage and transportation. 

Advantages: 

1. Can be used in the thick coatingdeep curing

2. Can be used in both white system and brunet system

3. Belongs to low-volatilitymild-smell and environment friendly product

4. Excellent photoinitiation activity and good solubility

5. Have light-decolourizatio

6. Anti-yellowing

  

GR-XBPO UV absorption spectra

Chemical Name: phosphine oxidephenyl bis (246-trimetyl benzoyl)

CAS No.: [162881-26-7]

Formula: C26H27O3P  

Formula Weight: 418.46

Chemical Structure:   

                    

Appearance: light yellow powder 

Purity: ≥99.0%

Melting Point: 127-131°C

Flash Point: 310.6 °C 

Boiling Point: 90 °C (760 mmHg)

Density: 1.17 g/cm3    

 

phosphine oxidephenyl bis (246-trimetyl benzoyl)