Optical Brightener For Whitening Polypropylene Plastics
Basically, manufacturers who have used brighteners know that, as long as you use a mixer to mix the raw materials, brighteners and other additives, you can mix them thoroughly, and you must mix them evenly. Otherwise, the material inside the board is unevenly distributed. , It will cause the polyplastic board to crack, and its addition amount is relatively small, as long as it is controlled at one ten thousandth to five ten thousandths. It is generally recommended to add a small amount up until it reaches Satisfactory results. Although the addition amount is small, the whitening effect is more obvious. If the addition amount is too large or too small, it will affect the effect, so the addition amount must be controlled. After mixing well, it can be produced on the machine. After the production of the extruded board is completed, observe its appearance, you will find that there is no yellowing phenomenon, and the whiteness value has been greatly improved.
Product Introduction:
Optical Brightener (OB-1) is a heat resistant and chemically stable fluorescent whitener that increases whiteness and provides brighter looking colors. It is used to offset the yellowness of a polymer and to yield a whiter appearance. Optical brighteners create brilliance by a fluorescence process involving absorption of invisible UV light and emission of visible blue light. OB-1 is especially useful in polyester and nylon fibers as well in high temperature engineering plastics.
Except Optical Brightener,we can also supply Pvc Resin,Pet Resin, Titanium Dioxide, Carbon Black, Iron Oxide Pigments, PP Resin , DOP 99.5%,PVC Paste Resin etc.If any demands you may have,welcome to contact with us.
Specification:
Physical Properties:
| Appearance | Yellowish Powder |
| Molecular Weight | 414.4 |
| Melting Range | 357 - 360°C |
| Specific Gravity (20°C) | 1.39 |
| Decomposition Temperature | >400°C |
Solubility at 25°C (g/100ml solvent): | Solvent | Solubility |
| Acetone | <0.01% |
| Chloroform | <0.01% |
| n-Hexane | <0.01% |
| Methanol | <0.01% |
| Water | <0.02 mg/L |
Application: OB-1 is recommended to increase the whiteness of polyester and polyamide fibers as well as high temperature engineering plastics, including polycarbonates, Polyesters, and polyamides (Nylon). The product can also be used in styrenic and acrylic polymers.
Advantages:
1.Brilliant, bluish white effects that compensates for yellowing.
2.Good light fastness and low volatility.
3. Exceptional whitening properties.
4.Highly compatible with a wide range of organic substrates and solvents.
5.Excellent resistance to heat.
6. Useful as a tracer in clear coatings.
7. In combination with dyes, produces particularly bright shades.
Packing&Storage:
OB-1 is available in powder form in a 25 kg (55.10 Pound) fiber drum, net weight, with an inner PE liner.
This product may be stored up to one year in a sealed container. Containers should be stored in a cool, dry area. Extended storage at elevated temperatures or exposure to direct heat or sunlight could reduce product life. Keep containers sealed when not in use.
Product Categories : Pigment&Dye > Optical Brightener
