18 Years Factory Brightner KCB - Optical Brightener OB – Subang

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18 Years Factory Brightner KCB - Optical Brightener OB – Subang Detail:

Structural formula

1

Product Name: Optical brightener OB

Chemical Name: 2,5-thiophenediylbis(5-tert-butyl-1,3-benzoxazole)

C.I.:184

CAS NO.:7128-64-5

Specifications

Molecular formula: C26H26N2O2S

molecular weight: 430

Appearance: light yellow powder

Tone: blue

Melting point: 196-203℃

Purity: ≥99.0%

Ash: ≤0.1%

Particle size: Pass 200 mesh

Maximum absorption wavelength: 375nm(Ethanol)

Maximum emission wavelength: 435nm(Ethanol)

Properties

Optical brightener OB is a kind of benzoxazole compound, it is odorless, hard to dissolve in water, soluble in paraffin, fat, mineral oil, wax and common organic solvents. It can be used for whitening thermoplastic plastics, PVC, PS, PE, PP, ABS, Acetate fiber, paint, coating, printing ink, etc. It can be added at any stage in the process of whitening the polymers and make the finished products emit a bright bluish white glaze.

Application

Optical brightener OB is one of the best brighteners widely used in plastics and fibers and has the same whitening effect as Tinopal OB. It can be used in thermoplastics, polyvinyl chloride, polystyrene, polyethylene, polypropylene, ABS, acetate, and it can also be used in varnishes, paints, white enamels, coatings, and inks.It also has a very good whitening effect on synthetic fibers.It has the advantages of heat resistance, weather resistance, non-yellowing, and good color tone.It can be added to the monomer or prepolymerized material before or during polymerization, condensation, addition polymerization, or added in the form of powder or pellets (i.e masterbatch) before or during the formation of plastics and synthetic fibers.

Reference usage:

1  PVC:

For soft or rigid PVC:

Whitening: 0.01-0.05% (10-50g/100KG material)

Transparent: 0.0001-0.001%(0.1g-1g/100kg material)

2  PS:

Whitening: 0.001% (1g/100kg material)

Transparent: 0.0001-0.001 (0.1-1g/100kg material)

3  ABS:

Adding 0.01-0.05% to ABS can effectively eliminate the original yellow color and achieve a good whitening effect.

4  Polyolefin:

Good whitening effect in polyethylene and polypropylene:

Transparent: 0.0005-0.001%(0.5-1g/100kg material)

Whitening: 0.005-0.05%(5-50g/100kg material)

Package

25kg fiber drum,with PE bag inside or as customer’s request.


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We are going to make every single effort for being excellent and excellent, and accelerate our ways for standing while in the rank of international top-grade and high-tech enterprises for 18 Years Factory Brightner KCB - Optical Brightener OB – Subang , The product will supply to all over the world, such as: New Zealand, Angola, Sudan, It is our customers' satisfaction over our products and services that always inspires us to do better in this business. We build mutually beneficial relationship with our clients by giving them large selection of premium car parts at marked down prices. We offer wholesale prices on all our quality parts so you are guaranteed greater savings.
  • We have been looking for a professional and responsible supplier, and now we find it.
    5 Stars By Cherry from Malaysia - 2018.09.21 11:01
    This manufacturers not only respected our choice and requirements, but also gave us a lot of good suggestions, ultimately, we successfully completed the procurement tasks.
    5 Stars By John from Tunisia - 2018.08.12 12:27
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