Polypropylene is a widely used general-purpose plastic. Its main characteristics are low specific gravity, good rigid chemical stability, low water absorption and excellent high frequency performance, and its disadvantages are brittleness of products at low temperature, high molding shrinkage rate and low heat distortion temperature. Lijia Company enhances the performance of PP to a new level and gives products special purposes by adopting advanced formulas and equipments and using modified methods such as reinforcement, flame retardancy, toughening, transparency, high gloss, heat resistance, antistatic measure.
Performance and application of typical products:
| Material | Grade | Characteristics | Typical Applications |
| General-purpose PP | AB132 | High gloss & high flow | Shell of household appliances such as rice cooker, microwave oven & coffee pot |
| BT100 | Heat resistance & high gloss | Kitchen utensils & packaging products | |
| AF112 | Environment-friendly flame retardancy & high flow | Bobbin, electrical housing, electrical switch, connector & microwave components | |
| AF189 | Halogen-free flame retardancy & high flow | Electrical and electronic components |
(Note: products of special specifications and colors may be developed according to different requirements of customers.)
Performance parameters of typical products:
| Item | Unit | Standard | Grade of general-purpose PP of Nanjing Lijia | |||
| ISO | AB132 | BT100 | AF112 | AF189 | ||
| Tensile strength | Mpa | 527 | 30 | 27 | 26 | 22 |
| Elongation at break | % | 527 | 60 | 100 | 120 | 1150 |
| Bending strength | Mpa | 178 | 42 | 40 | 30 | 35 |
| Bending modulus | Mpa | 178 | 1800 | 1700 | 1400 | 1500 |
| IZOD notched impact | KJ/m2 | 180/1A | 8 | 4 | 6 | 6 |
| Rockwell hardness | R标 | 2039/2 | 90 | 85 | 80 | 80 |
| Density | g/cm3 | 1183 | 1.12 | 0.90 | 1.08 | 1.03 |
| Melt flow rate | g/10min | 1133 | 6 | 6 | 8 | 8 |
| Molding shrinkage | % | 294/4 | 1.0-1.2 | 1.4-1.8 | 1.0-1.4 | 0.9-1.2 |
| Heat distortion temperature | ℃ | 75 | 120 | 125 | 125 | 125 |
| Flame retardancy | Class | UL-94 | HB | HB | V-0 | V-0 |
(Note: the above test data are measured in our laboratory, for reference only.)
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