B302:white pigment ,zinc sulfide content is 28%. After surface treatment, it has better dispersion than B301
B311:white pigment ,zinc sulfide content is 30%. Compared with B301, it has stronger covering power and fading power also better dispersibility
Usage:
Used for coloring paint, ink, rubber, rubber products, paper, lacquer cloth, oil cloth, leather, watercolor pigment, paper, enamel etc . It also used as adhesive in the production of electric beads
Inorganic white pigment, widely used in polyolefin, vinyl resin, ABS resin, polystyrene, polycarbonate, nylon, polyformaldehyde and other plastics, as the white pigment of paint&ink. It is bad use for polyurethane and amino resin, and cannot use for fluoroplastics.
ITEM | INDEX | ||||||||||||||
B301 | B302 | B311 | |||||||||||||
High | First | Qualified | High | First | Qualified | High | First | Qualified | |||||||
Sum of total zinc of zinc sulfide and barium sulfate | 99 | 99 | 99 | ||||||||||||
Total zinc(zinc sulfide) %(m/m)≥ | 28 | 28 | 30 | ||||||||||||
Zinc oxide %(m/m)≤ | 0.6 | 0.8 | 1.0 | 0.3 | 0.3 | 0.5 | 0.2 | 0.3 | 0.5 | ||||||
105ºC volatile matter %(m/m)≤ | 0.3 | 0.3 | 0.5 | 0.3 | 0.3 | 0.5 | 0.3 | 0.3 | 0.5 | ||||||
Water soluble matter %(m/m)≤ | 0.4 | 0.5 | 0.5 | 0.4 | 0.5 | 0.5 | 0. | 0.4 | 0.5 | ||||||
Sieve residue(63um sieve) %(m/m)≤ | 0. | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | ||||||
Color(compared with standard sample) | Over match | similar | Slightly worse than | Over match | similar | Slightly worse than | Over match | similar | Slightly worse than | ||||||
The water extract of alkalinity | Intermediate hurdles | ||||||||||||||
Oil absorption g/100g | 14 | 11 | 10 | ||||||||||||
Reducing power(with standard sample) % ≥ | 105 | 100 | 92 | 105 | 100 | 95 | 105 | 100 | 95 | ||||||
Cover rate(contrast) | Not less than 5% standard sample |
