Chinese wholesale Brightening Agent - Optical Brightener OB – Subang
Chinese wholesale Brightening Agent - Optical Brightener OB – Subang Detail:
Structural formula
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.
Product detail pictures:
Related Product Guide:
Our primary intention should be to offer our clientele a serious and responsible enterprise relationship, delivering personalized attention to all of them for Chinese wholesale Brightening Agent - Optical Brightener OB – Subang , The product will supply to all over the world, such as: Cancun, Kenya, Croatia, We warmly welcome you to come to visit us personally. We hope to establish a long-term friendship based on equality and mutual benefit. If you want to get in touch with us, please do not hesitate to call. We will be your best choice.
By EliecerJimenez from Uganda - 2018.05.15 10:52
After the signing of the contract, we received satisfactory goods in a short term, this is a commendable manufacturer.
By Danny from Austria - 2018.02.12 14:52