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Plastic materials

Systems list

Mion Ventoltermica Depurazioni S.p.A is a company specialized in the design, construction and installation of systems for the recovery, treatment, transport and sorting of plastic materials. In order to meet the needs of plastic material manufacturing processes, it is necessary to use specific machinery, systems and devices, such as:

  • Dust and chips collection systems
  • Sorting, storage and extraction systems for plastic materials
  • Pneumatic and mechanical conveying systems
  • Paint drying/curing ovens and tunnels
  • Fire fighting equipment for use in potentially explosive atmospheres (ATEX)

Thanks to its long experience and qualified and experienced staff, the company can provide advanced and optimal solutions to complex problems regarding the manufacturing process of plastic materials and tailor them to the technical and financial needs of each customer.

Problems regarding the manufacturing process of plastic materials

The use of plastic materials in industry requires specific machinery, systems and devices for their transport, sorting and storage, which are aimed at reducing risks in the workplace. The problem of dusts generated by plastic materials is considered in the ATEX Directives and that is why it is necessary to use specific devices aimed at reducing the risks of fire and explosion in every step of the manufacturing process.
The painting process of finished and semi-finished plastic products requires collection, filtration and scrubbing systems for paints, dusts and solvents. Environmental problems The disposal methods of plastic waste, mostly not biodegradable, can be the following ones:

  • Recycling
  • Disposal in landfills
  • Incineration

The sorting and recycling process of plastic dusts and particulates is the preferable form of waste disposal, since it minimizes the negative impact on the environment.

General description of plastic materials

Plastic materials are synthetic materials composed of polymers, which can be moulded under heat and pressure. They are classified into: Thermoplastics, Thermosetting plastics, Elastomers.

  • Thermoplastics: plastic materials which become elastic end flexible above a determined temperature so that they can be moulded and harden when cooled sufficiently. This process can be repeated many times, depending on the quality of the plastic material.
  • Thermosetting plastics: plastic materials that can be moulded under heat and pressure. Then, they become solid and, because of their 3D network of bonds (cross-linking), cannot be melted and re-shaped and decompose before the melting temperature is obtained.
  • Elastomers: plastic materials with elastic and flexible properties. They can be thermoplastic or thermoset.

The advantages of plastic materials compared to metallic and non-metallic materials are: flexibility, low costs, easier colouring, sound, thermal, electrical and mechanical (from vibrations) insulation, high corrosion resistance and chemical inertness. Moreover, they are water-repellent, mildew-proof and resistant to fungus and bacteria.
The chemical structure of plastic materials is composed of molecular units, called monomers, which polymerize to form long chains. Homopolymers are polymers resulting from the polymerization of a single monomer, copolymers are derived from two (or more) monomeric species and polymer blends are a mixture of two polymers which are blended together to create a new material. Plastic materials mainly derive from petroleum processing.