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Fluorescent Brightener OB
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Fluorescent Brightener OB

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Product Description

Fluorescent brightener OB

Chemical name: 2, 5 - two (5 - tert-butyl - 2 - benzo pbo) thiophene

 

1

Performance indicators:

Molecular formula: C26H26N2O2S

Molecular weight: 430

Inclusive of our 99.5% amount:

Ash: 0.5%

Outside view: light yellow crystalline powder

Melting point: 201-203 ° C

The maximum absorption wavelength of 375 nm (ethanol)

Fluorescence emission wavelength: 435 nm (ethanol)

Product application:

Fluorescent brightener OB can be widely used in PVC, PS, ABS, PE, PP and other plastics, because of its superior fluorescent whitening effect, good thermal stability, adding small amounts of characteristics, has been widely adopted as a domestic one of fluorescent whitening agent. At the same time can also be applied to polyester fiber, coating, paint, printing ink and acrylic whitening. Fluorescent brightener OB can be Shared with dye to produce special brightness, this effect is especially effective in color formula.

Product usage:

Every 100 kg of fluorescent whitening agent is added to the polymer, the dosage of the OB (see dosage)

PVC: white 0.01 0.05% (10 g) - 50 g)

Transparent 0.0001-0.001% - 1 g (0.1 g), and can improve the brightness of PVC)

PS: white 0.001% (1 g)

Transparent 0.0001-0.001% - 1 g (0.1 g)

ABS: ecru 0.01 0.05% (10 g) - 50 g (ABS can effectively eliminate inherent in yellow)

White 0.01 0.05% (10 g to 50 g)

PE, PP: colorless 0.0005-0.001% - 1 g (0.5 g)

White 0.005 0.05% (5 g to 50 g)

Other plastic: dosage can call for enquiry.

Any uv absorber is added in the polymer, adjust the amount of fluorescent brightener OB should be paid attention to

Product usage:

Because of fluorescent whitening agent adding quantity is little, should be thoroughly dispersed brightener, make the whitening agent can evenly dispersed in the polymer. If use brightener concentrated masterbatch, are more likely to achieve sufficient dispersion effect.

 

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