الوصف
Chemical Name:
2,5-Thiophenediylbis(5-tert-butyl-1,3-benzoxazole)
Synonym Name:
Uvitex Ob, Tinopal OB, Fluorescent Brightener 184 (FB 184) , c.i.184, Fluorescent Brightener OB
مواصفات:
| المظهر | Slight greenish yellow powder |
| Dosage | 0.01-0.05% |
| Melting point | 196-200℃ |
| Purity | ≥99% |
| Solubility | (g/100 g solution) at 20° C: |
| Acetone | 0.5 |
| Chloroform | 14 |
| Dimethylformamide | 0.8 |
| Dioxane | 2 |
| n-Hexane | 0.2 |
| Methanol | ＜0.1 |
| Methylethylketone | 1.3 |
| Tricresylphosphate | 0.8 |
| Xylene | 5 |
التطبيق:
>Features:Brilliant bluish whitening effects; excellent heat resistance; high chemical stability; good compatibility in a wide range of resin.
>Optical Brightener OB is used as an brightener and to offset the yellowness of a polymer and yield a whiter appearance. Mainly used as thermoplastic (بولي كلوريد الفينيل, ملاحظة:, PE, PP, القيمة المطلقة) optical brightener. Also for coatings, printing inks, paints, dyes, manufactured fibers, synthetic leather, waxes, fats, and oils. Recommend indoor use only.
>If OB must be used in combination with a UV absorber, the absorption spectrum of the latter must leave an open window in the near UVA for the optical brightener ob.
>Recommended concentrations:0.02-5% depend on the application and degree of desired whiteness.
Handing and Safety:
>FDA approved for use in polymers subject to the limitations in 21 CFR §176.170(ج).
>For additional handing and toxicological information, please consult us for Maternal Safety Date Sheet.
حزمة:
25kg per fiber drum, 6*2 layer 12 drum per pallet, 5CBM per ton,or according to customers’ requirements.
