Optical Brightening Agent OB-1
Main composition
Chemical name:2,2'-(1,2-Ethenediyldi-4, 1-phenylene)bisbenzoxazole
C.I.No:393
CAS:1533-45-5
Formula:C28H18N2O2
Molecular Weight:414.4
Technical index
Appearance:Green- yellow powder
Melting Point:359℃
Purity:≥98.0%
Volatile:0.5%
Performance and Features
1.High whiteness and strong fluorescence.
2.It has wide adaptability and is widely used in whitening of polyester, nylon fiber and various plastics.
3.Excellent heat resistance and light fastness.
Recommended dosage: the dosage of OB-1 against 1000kg material by weight.
1.For EVA, polypropylene, nylon and polycarbonate, add 75-200g.
2.For polyester fiber, add 75-300g.
Packaging and Storage
Packaging with 25kg bag, 25kg carton, 500kg bag or according to customer's request.
Shelf-life:2 years, store under the room temperature. Avoid strong sunlight and wet environment.
|
TEST |
UNIT |
SPECIFICATION |
|
APPEARANCE |
|
GREENISH CRYSTAL POWDER |
|
ASSAY |
% |
98.50MIN |
|
VOLATILES |
% |
0.50MAX |
|
MELTING POINT |
℃ |
350.0-360.0 |
|
FINENESS |
MESH |
200MIN |
TGA: 0.2%(300℃)2.2%（350℃）19.4%（400℃）
Our company is a professional supplier of functional material additives. Our products include antioxidants, ultraviolet absorbers, light stabilizers, photoinitiators, heat stabilizers, nucleating agents, flame retardants, polyurethane chain extenders, nano light absorbing materials, antibacterial materials, functional masterbatches, colorants etc. After years of steadfast industry accumulation and technological innovation, a relatively complete additive industry chain has been formed in the rubber and plastic industry, ink industry, coating industry, textile printing and dyeing industry, functional resin and other industries. Significant achievements have been made in the field of additives.
Please visit our website if you have any inquiry: Optical Brightening Agent OB-1.If you can't find materials from around the world, please let us know and we will research and produce them in our labs equipped with high technology.
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