Sell UV Absorber UV-P

详情

 UV Absorber UV-P
Chemical Name:         *-(2'-Hydroxy*5'-methylphenyl)-benzotriazole
CAS No.:                 ********4, ********4
EINECS No.:             ********5
Molecular Formula:     C*3H*1N3O
Molecular Weight:       **5.*5
Structural Formula:
 

Solubility: UV-P is particularly effective in styrenic polymers, PVC, unsaturated polyesters, polyurethanes, acrylic polymers and polycarbonates.

Property                                       Specification                                  
Appearance                           White to yellowish crystal powder
Melting Point                                  **8℃***2℃
Assay                                          Min. *9%(HPLC)
Light Transmittance(**0nm)                  Min. *8%
(**0nm)                  Min. *9%
Ash content                                    Max. 0.1%
Volatile Matter                                 Max. 0.3
Specific Gravity                                1.*8g/cm3
At *0 Deg. C g/**0ml solvent
Water                                           Max. 0.*1
Acetone                                         Max. 3
Ethyl Acetate                                    Max. 3.5
Cyclohexane                                     Max. 1
N-Hexane                                        Max. 0.8
Chloroform                                      Max. *3
Benzene                                         Max. 7
Methanol                                        Max. 0.2    
                        
Applications: 
UV-P is a benzotriazole type UV absorber. Characterized by its strong, broad range UV absorption property, UV-P brings an excellent photostability to polymers against UV light exposure in many ways i.e. retarding color yellowing , preventing embrittlement, maintaining of mechanical properties etc.
* Styrenic polymers: 0.**0.5wt% for PS based on polymer wt.
0.**0.5wt% for ABS based on polymer wt.
0.**2.0wt% for HIPS based on polymer wt.
* Polyvinyl chloride: 0.**0.5wt% for PVC based on polymer wt.
* Polyurethane: 0.**1.0wt% for PS based on polymer wt.
* Polyacrylate: 0.***0.3wt% for PS based on polymer wt.
* Polycarbonate: 0.***0.3wt% for PS based on polymer wt.
* Unsturated Polyester: 0.**0.4wt% for PS based on polymer wt.

ADVANTAGE
* Very high photostability for its strong ability to absorb light especially in UV region(******0nm)
* Odorless, does not bring smells to the polymers.
* Very stable to heat, and can be used in plastics which require high processing temperature.
* Low vapor pressure, very little or no loss during processing.

Stability and Storage: 
In a closed system and dry, dark place without any light exposure.

Package: *5 kg drum with inner PE bag
Shelf life: *4 months