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Piezoelectric Tyres

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CSIR NAL
CSIR NAL

1. The document discusses the fabrication of nanocomposites using carbon nanotubes (CNTs) as the fibrous part and flexible or conductive polymers as the matrix. 2. Several fabrication methods are mentioned including sol gel, in situ polymerization, and solution processing. The properties of the composite can be controlled based on fabrication parameters and functionalization of the CNTs. 3. Potential applications discussed include using piezoelectric nanocomposites in tires to extract energy from pressure and store it in batteries to be used elsewhere. Proper design of the wheels and efficient energy extraction with minimal losses is important.

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By Pabitra Kumar Das M.Tech Materials Science
Polymer Films With Flexibility – synthetic rubber, phenol formaldehyde resin (or Bakelite), neoprene, nylon, polyvinyl chloride (PVC or vinyl), polystyrene,polyethylene, polypropylene, polyacrylonitrile, PVB, silicone Conductive Polymers – Polyaniline , Polypyrrole , PEDOT:PSS etc etc .. Tpes of CNT- Zigzag , armchair , chiral
1. Fabricate nanocomposites with CNT as fibrous part and flexible or conductive polymers as matrix with different methods like sol gel , in situ polymerization , solution processing etc . 2. To control the temperature and mechanical or chemical bonding according to fabrication parameters . 3. Decide the functionalization of CNT with matrix according to requirered properties .
1. Conductive polymers with CNT to enhance the piezoelectric properties and conduction of ions or conjugating parts .( Conductive polymers have low mechanical properties and some are brittle which may harm mechanical properties of composite ) 2. CNT with flexible polymers to give very good elastic properties with piezoelectricity . 3. Selecting appropriate polymers and CNT and choose the appropriate way for making composites . 4. Deciding to functionalize CNT or not . (Just using CNT fibre reinforced polymer matrix may cause low bonding and errors ) 5. Uniform dispersion methods for processing nanocomposite .
1. Solution Processing . 2. Melt Blending 3. In-situ Polymerization . Factors that affect fabrication – 1. Homogeneous dispersion of CNT throught the matrix without destroying the integrity . 2. Good interfacial bonding in case of functionalization . 3. Choosing surface modification techniques for better dispersion
Piezoelectric Tyres
1. Stress Strain analysis 2. Mechanical properties deformation limit , youngs modulus etc 3. Micromechanical analysis 4. Comparison of composites with different polymers and CNT types . 5. Resonance and poling methods with dc polarization in order to induce piezoelectricity after sintering treatments .
1. Using Piezoelectric nanocomposites to embedd in tyres with specific design and to extract pressure due to gravity each and every moment by proper mechanism . 2. To store the extracted energy in a good battery (electrolytic or supercapacitors) and use it for further use . 3. Proper design of wheels to get pressure and calculations for stress strain curve to bear load limit . 4. Ways to efficiently extract the power to batteries with minimal losses . 5. Use a design of rubber and piezoelectric flexible films to give all the wear and tear to rubber and conserve the piezoelectric material .
Rectifiers that are used to extract electricity provide very high resistance in reverse mode (opposite to the direction of permitted current flow), the remaining PZT benders act like a disconnect in the path of electric current, that is, like an open circuit.

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Piezoelectric Tyres

  • 1. By Pabitra Kumar Das M.Tech Materials Science
  • 2. Polymer Films With Flexibility – synthetic rubber, phenol formaldehyde resin (or Bakelite), neoprene, nylon, polyvinyl chloride (PVC or vinyl), polystyrene,polyethylene, polypropylene, polyacrylonitrile, PVB, silicone Conductive Polymers – Polyaniline , Polypyrrole , PEDOT:PSS etc etc .. Tpes of CNT- Zigzag , armchair , chiral
  • 3. 1. Fabricate nanocomposites with CNT as fibrous part and flexible or conductive polymers as matrix with different methods like sol gel , in situ polymerization , solution processing etc . 2. To control the temperature and mechanical or chemical bonding according to fabrication parameters . 3. Decide the functionalization of CNT with matrix according to requirered properties .
  • 4. 1. Conductive polymers with CNT to enhance the piezoelectric properties and conduction of ions or conjugating parts .( Conductive polymers have low mechanical properties and some are brittle which may harm mechanical properties of composite ) 2. CNT with flexible polymers to give very good elastic properties with piezoelectricity . 3. Selecting appropriate polymers and CNT and choose the appropriate way for making composites . 4. Deciding to functionalize CNT or not . (Just using CNT fibre reinforced polymer matrix may cause low bonding and errors ) 5. Uniform dispersion methods for processing nanocomposite .
  • 5. 1. Solution Processing . 2. Melt Blending 3. In-situ Polymerization . Factors that affect fabrication – 1. Homogeneous dispersion of CNT throught the matrix without destroying the integrity . 2. Good interfacial bonding in case of functionalization . 3. Choosing surface modification techniques for better dispersion
  • 7. 1. Stress Strain analysis 2. Mechanical properties deformation limit , youngs modulus etc 3. Micromechanical analysis 4. Comparison of composites with different polymers and CNT types . 5. Resonance and poling methods with dc polarization in order to induce piezoelectricity after sintering treatments .
  • 8. 1. Using Piezoelectric nanocomposites to embedd in tyres with specific design and to extract pressure due to gravity each and every moment by proper mechanism . 2. To store the extracted energy in a good battery (electrolytic or supercapacitors) and use it for further use . 3. Proper design of wheels to get pressure and calculations for stress strain curve to bear load limit . 4. Ways to efficiently extract the power to batteries with minimal losses . 5. Use a design of rubber and piezoelectric flexible films to give all the wear and tear to rubber and conserve the piezoelectric material .
  • 9. Rectifiers that are used to extract electricity provide very high resistance in reverse mode (opposite to the direction of permitted current flow), the remaining PZT benders act like a disconnect in the path of electric current, that is, like an open circuit.