uv-p

uv absorber uv-p
2440-22-4

浙江更新日期：2012-07-13

hangzhou flying technology co.,ltd

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联系人：bubble

电话：0571-87389059拨打

产品详情:

中文名称：: uv-p

英文名称：: uv absorber uv-p

CAS号：: 2440-22-4

UV Absorber UV-P

Chemical Name:         2-(2'-Hydroxy-5'-methylphenyl)-benzotriazole

CAS No.:                 2440-22-4, 2240-22-4

EINECS No.:            219-470-5

Molecular Formula:     C₁₃H₁₁N₃O

Molecular Weight:      225.25

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                                  128℃-132℃

Assay                                          Min. 99%(HPLC)

Light Transmittance(460nm)                  Min. 98%

(500nm)                  Min. 99%

Ash content                                    Max. 0.1%

Volatile Matter                                 Max. 0.3

Specific Gravity                                1.38g/cm³

At 20 Deg. C g/100ml solvent

Water                                           Max. 0.01

Acetone                                        Max. 3

Ethyl Acetate                                    Max. 3.5

Cyclohexane                                     Max. 1

N-Hexane                                        Max. 0.8

Chloroform                                      Max. 13

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: 0.2-0.5wt% for PS based on polymer wt.

0.3-0.5wt% for ABS based on polymer wt.

0.5-2.0wt% for HIPS based on polymer wt.

* Polyvinyl chloride: 0.2-0.5wt% for PVC based on polymer wt.

* Polyurethane: 0.3-1.0wt% for PS based on polymer wt.

* Polyacrylate: 0.15-0.3wt% for PS based on polymer wt.

* Polycarbonate: 0.15-0.3wt% for PS based on polymer wt.

* Unsturated Polyester: 0.2-0.4wt% for PS based on polymer wt.

ADVANTAGE

* Very high photostability for its strong ability to absorb light especially in UV region(270-340nm)

* 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: 25 kg drum with inner PE bag

Shelf life:24 months