UV RESISTANT AGENT UV531
1.Introduction:
This product is a light stabilizer with good performance, capable of absorbing the
UV radiation of 240-340 nm wavelength with the characteristics of light color,
It can protect the polymer to its maximum extent, helps to reduce the color.
It can also delay the yellowing and obstacle the loss of its physical function.
CAS No. 1843-05-6
EINECS 217-421-2
Molecular Formula C21H26O3
Molecular Weight 326.43
Appearance Light yellow powder
Melting point 47-49 ºC
Assay 98%
2.Technical Specification
|
Items |
Parameter |
|
Appearance |
Pale yellow or white crystalline powder |
|
Density (25℃) |
1.160g/cm3 |
|
Melting Point, ℃ |
48~49 |
|
Solubility(g/100 solvent, 25℃) |
|
|
Acetone |
74 |
|
Benzene |
72 |
|
Methyl Alcohol |
2 |
|
Alcohol(95%) |
2.6 |
|
Normal Heptane |
40 |
|
Normal Hexane |
40.1 |
|
Water |
0.5
|
3.Application:
1) polypropylene: 0.2-0.5 wt% on the polymer weight.
2) polyethylene: 0.2-0.5% wt% on the polymer weight.
3) polyvinyl chloride:
0.5-2.0% for plasticized pvc by weight basis.
0.5% for rigid pvc by weight basis.
It is widely applied to PE,PVC,PP,PS,PC organic glass, polypropylene fiber,
ethylene-vinyl acetate etc. Moreover,
Its dosage is 0.1%-0.5%.
4. Feature:
1) very strong UV absorptivity in the ultraviolet region( especiallt in 240-340nm).
2) very low vapor pressure, prevernts product from loss during processing.
3) no effect on the odor of the resins.
4) very good compatibility with thermoplastic polymers owing to its octoxy substituent group, thus ensursing homogeneous distribution during processing.
5) high purity, no adverse effects due to impurties.
6) very high heat resistance, without significant degradation or volatility at proper extrusion temperature.
5. Packaging Details
200kg/drum, Galvanlzed iron drum.
