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Structure：
| Ausgesinn | White Powder |
| Formel | C24H30O6 |
| CAS Nr. | 135861-56-2 |
| EC Nr. | 413-110-2 |
| Boiling point °C | 245-255 |
| Dicht (20 ℃) g/ml | 1.195 |
| Moisture(%) | ≤0.1% |
| particle size(mesh ) | ≥320 |
| HS Code | 2905440000 |
| Addition amount(%) | 0.18-0.24 |
| Package | 20kg/PE bag |
| storage condition | Sealed in dry,Room Temperature |
| Synonyme | dimethyldibenzylidene sorbitol,1,3:2,4-Bis(3,4-dimethylobenzylideno) sorbitol |
NP-828 is a sorbitol-based transparent nucleating agent, a small amount added
to polypropylene can significantly improve the transparency of the product.
NP-828 is applied to homopolymerization and random copolymerization polypropylene,
which can significantly reduce the haze of PP products, improve the transparency and
surface gloss of products, improve the rigidity and heat resistance of materials, improve
the crystallization rate and crystallization temperature of PP, shorten the molding cycle of
products, and improve production efficiency. This product is insoluble in water,
non-toxic and tasteless, excellent heat resistance, can be used in the production of household
and food contact with high-grade transparent polypropylene products.
Store at room temperature, away from direct sunlight
Physical Appearance: Visual inspection
Purity Analysis: Gas chromatography (GC)
Acid Value: Potentiometric titration
Water Content: Moisture analyzers
Refractive Index: Refractometer
Density: Density meter
Performance comparison
Not added NP 828 VS Added 0.22% NP828 on Random Copolyed PP Product
| Artikel | Unit | Random Copolyed PP Product | |
| Not added | added 0.22% | ||
| Nucleating Agent Addition | % (wt) | 0 | 0.22 |
| Melt Mass Flow Rate | g/10min | 25 | 26 |
| Tensile Yield Stress | Mpa | 28 | 30 |
| Bending Modulus | Mpa | 1080 | 1260 |
| Simply Supported Beam Impact Strength | kJ/m 2 | 3.8 | 3.8 |
| Load Deformation Temperature | ℃ | 83 | 87 |
| Haze | % (wt) | 51.4 | 10.6 |
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