This invention describes an apparatus, system, and method for the melt-mixing of waste thermoplastic polymers and inorganic particulate fillers to manufacture polymer composites under laboratory conditions. The apparatus is designed as a single screw extruder with a substantial batch volume capacity ranging from 30 cc to 50 cc and can process filler concentrations from 0-70% by weight. Key components include a housing, barrel plates, a cylindrical screw channel, a recirculation channel, an extruder screw with transport and mixing sections, a feed hopper unit, cartridge heating units, a die channel, and thermocouples. This design aims to enhance the efficiency and sustainability of waste material processing, offering a significant advancement in environmental management and polymer composite manufacturing.
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The apparatus and method address significant environmental issues by providing a sustainable way to manage and repurpose waste plastics and inorganic fillers. This innovation can reduce pollution and mitigate health risks associated with improper waste disposal.
- Cost Efficient: Lower fabrication cost
- Large Batch Volume Capacity: Capable of processing batch volumes in the range of 30 cc to 50 cc
- High Filler Concentration: Can handle filler concentrations up to 70% by weight
- Enhanced Mixing Efficiency: Incorporates a recirculation channel for uniform mixing
- Adaptability: Suitable for a variety of waste thermoplastic polymers and inorganic particulate fillers
- Reduced Thermal Degradation: Diamond mixing pins help to minimize thermal-induced degradation during processing
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A pilot-scale recycling plant with a GolDN extruder, as central apparatus, has been built. Additional capabilities like shredding, pre-heating, and conveying allow complete waste plastic to product conversion.
Waste Management, Polymer and Plastic Manufacturing, Environmental Engineering, Materials Science and Engineering, Recycling Industry
- Materials Engineering: Development of new composite materials with varied applications
- Industrial Waste Utilization: Efficiently processing industrial waste materials into reusable composite