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PVC heat stabilizer :The Substitute of Tribasic Lead Sulfate (FM803)
Heat stabilizers for PVC. For opaque rigid PVC pipe, sheet, injection molding products, also used in leather products. Because of its excellent performance, are widely used in PVC electrical insulation materials, can also be used with the paint color, with light stable, the benefits do not change.
Property:
It is white, sweet and toxic powder with the specific gravity of 7.10. It can dissolve in nitric acid, hot thick hydrochloric acid, ammonium acetate and sodium acetate, partly in acetic acid, but not in water. It will turns to yellow when loses the crystal water at 135, it turns to yellow under sunlight, especially in wet condition.
Application:
Mainly used for the heat stabilizer of PVC opaque or semi opaque products.
Storage:
It is toxic inorganic product, so it should be kept in a dry and cool storage house with good ventilation, and cannot be stored or transported with food.
ADVANTAGES
1. High heat stability
2.Environmentally safe, non-heavy metal
3.High transparency
4.Excellent dispersability
5.Good weatherability
6. Sulfide-free
7.Applicable for all resins
8. No deterioration of the insulating characteristics of PVC
Grade | FM803 | |
Specific gravity (g/ml) | 2.1 | |
Heavy metals | < 10 ppm | |
Loss on drying (105°C, 1hr) | 0.5% | |
Starting temperature of deHydration | 185°C | |
BET (m2/g) | 6-13 | |
Apparent specific gravity (g/ml) | 0.38 | |
Oil absorption capacity (ml/100g) | 50 | |
Particle size distribution | ||
Average particle size (μm) | 0.7 | |
Heat Stability | Combination with Zn-St | Very good |
With Tin-mercapto | Good | |
Transparency | Rigid | Good |
Flexible | Very good | |
Early coloring | with Tin-mercapto | Normal |
Recommended application | Flexible PVC | |