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Mineral Filled PP

Xinyite's Mineral Filled PP product line offers reinforced polymer materials with superior strength and performance. Our reinforced PP plastics play a key role in a variety of industrial applications, including automotive manufacturing and electronics and appliances. Since our establishment in 2001, we have been committed to independently developing and producing functional polymer materials to provide customers with high-quality solutions.

Mineral filled polypropylene (PP) materials are composite materials that combine polypropylene with various mineral fillers to enhance its mechanical and thermal properties. The addition of mineral fillers can significantly improve the performance characteristics of polypropylene, making it suitable for more demanding applications.

General Characteristics

  1. Enhanced Mechanical Properties: Mineral fillers can improve the stiffness, strength, and dimensional stability of polypropylene.

  2. Thermal Stability: Increased resistance to heat and reduced thermal expansion make it suitable for high-temperature applications.

  3. Improved Processability: Mineral fillers can enhance the flow properties of polypropylene, making it easier to mold and process.

  4. Reduced Shrinkage: The presence of fillers helps in reducing shrinkage during cooling, leading to better dimensional accuracy.

  5. Cost-Effectiveness: Adding mineral fillers can reduce the overall cost of the material by replacing some of the more expensive polymer content.

General Applications

  1. Automotive Industry: Used in under-the-hood components, interior parts, and structural elements due to its enhanced strength and thermal resistance.

  2. Electrical and Electronics: Employed in housings, connectors, and other components that require improved dimensional stability and thermal properties.

  3. Construction: Utilized in building materials, piping, and insulation where rigidity and stability are crucial.

  4. Household Appliances: Found in parts of washing machines, refrigerators, and other appliances that benefit from enhanced mechanical properties.

Different Mineral Fillers

  1. Talc: Improves stiffness, heat resistance, and dimensional stability while providing a smooth surface finish.

  2. Calcium Carbonate: Enhances rigidity and impact strength, and is commonly used to reduce material costs.


  1. Improved Mechanical Strength: The addition of mineral fillers enhances the stiffness, strength, and overall mechanical performance of polypropylene.

  2. Thermal Stability: Mineral filled PP materials exhibit better resistance to high temperatures and lower thermal expansion.

  3. Dimensional Stability: Reduced shrinkage and improved dimensional accuracy make it ideal for precision applications.

  4. Cost Efficiency: The incorporation of mineral fillers can reduce material costs by replacing a portion of the  polymer with less expensive fillers.

  5. Enhanced Processability: Improved flow properties during processing facilitate easier molding and      manufacturing.

  6. Versatility: Suitable for a wide range of applications across various industries due to its enhanced properties.

In summary, mineral filled polypropylene materials offer a robust combination of improved mechanical properties, thermal stability, and cost-effectiveness. By incorporating various mineral fillers, these materials can be tailored to meet the specific requirements of diverse applications, making them a versatile choice for many industries.

The company specializes in the production of high-quality thermoplastic materials, including ABS, PC, PA6,PA66, PMMA, PP etc

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