Component having vibration-damping properties, mixture for manufacturing the component, and method of manufacturing such a component
AssigneeDaimlerChrysler AG
InventorsIngo Borchers, Martin Hartweg, Josef Michel, Rolf-Dirc Roitzheim, Silvia Tomaschko, Ping Wang, Jurgen Schnur
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Abstract
In a component having vibration-damping properties, a mixture for manufacturing the component, and a method of manufacturing such a component, the component has granular and/or grain- and/or flake-shaped piezoelectric particles which are embedded in a polymer matrix in a proportion of at least 10 volume %. In order to improve the damping effect, at least some of the piezoelectric particles have a polarization which is different from zero.
Claims38
A component having vibration-damping properties, comprising:
- at least one of granular, grain-shaped and flake-shaped piezoelectric particles embedded in at least one matrix polymer forming a matrix in a level of at least 10 volume %, wherein, after the matrix polymer has set, at least some of the piezoelectric particles have a particle polarization other than a zero particle polarization.
A mixture for manufacturing a component having vibration-damping properties using a molding method for components made of plastic, the component including at least one of granular, grain-shaped and flake-shaped piezoelectric particles embedded in at least one matrix polymer forming a matrix in a level of at least 10 volume %, wherein, after the matrix polymer has set, at least some of the piezoelectric particles have a particle polarization other than a zero particle polarization, comprising:
- at least one of the matrix polymer and precursors of the matrix polymer;
- and
- the piezoelectric particles mixed with the at least one of the matrix polymer and the precursors of the matrix polymer.
A method of manufacturing a component having vibration-damping properties, the component including at least one of granular, grain-shaped and flake-shaped piezoelectric particles embedded in at least one matrix polymer forming a matrix in a level of at least 10 volume %, wherein, after the matrix polymer has set, at least some of the piezoelectric particles have a particle polarization other than a zero particle polarization, comprising the steps of:
- forming a particle-containing mixture from at least one of the matrix polymer and precursors of the matrix polymer and from the piezoelectric particles, the piezoelectric particles including particle polarizations different from zero;
- molding the component from the mixture using a molding method for components made of plastic;
- and
- crosslinking the polymer matrix.
A method of manufacturing a component having vibration-damping properties, the component including at least one of granular, grain-shaped and flake-shaped piezoelectric particles embedded in at least one matrix polymer forming a matrix in a level of at least 10 volume %, wherein, after the matrix polymer has set, at least some of the piezoelectric particles have a particle polarization other than a zero particle polarization, comprising the steps of:
- forming a particle-containing mixture from at least one of the matrix polymer and precursors of the matrix polymer and from the piezoelectric particles;
- molding the component from the mixture using a molding method for components made of plastic;
- crosslinking the polymer matrix;
- and
- providing the piezoelectric particles with a particle polarization other than zero at least one of during and after the crosslinking step.
A method of manufacturing a component having vibration-damping properties, the component including at least one of granular, grain-shaped and flake-shaped piezoelectric particles embedded in at least one matrix polymer forming a matrix in a level of at least 10 volume %, wherein, after the matrix polymer has set, at least some of the piezoelectric particles have a particle polarization other than a zero particle polarization, comprising the steps of:
- manufacturing a particle-containing blank from at least one of the matrix polymer and precursors of the matrix polymer and the piezoelectric particles using a molding method for components made of plastic;
- and
- orienting the particle polarization of at least some piezoelectric particles at least before the matrix polymer is completely crosslinked.
A method of manufacturing a component using an application method, the component having vibration-damping properties and including at least one of granular, grain-shaped and flake-shaped piezoelectric particles embedded in at least one matrix polymer forming a matrix in a level of at least 10 volume %, wherein, after the matrix polymer has set, at least some of the piezoelectric particles have a particle polarization other than a zero particle polarization, comprising the steps of:
- forming a mixture from at least one of the matrix polymer and precursors of the matrix polymer and the piezoelectric particles;
- adding piezoelectric particles having a particle polarization which is different from zero form the mixture;
- molding the component from the mixture using a molding method for components made of plastic;
- and
- crosslinking the polymer matrix.
A method of manufacturing a component having vibration-damping properties, the component including at least one of granular, grain-shaped and flake-shaped piezoelectric particles embedded in at least one matrix polymer forming a matrix in a level of at least 10 volume %, wherein, after the matrix polymer has set, at least some of the piezoelectric particles have a particle polarization other than a zero particle polarization, comprising the steps of:
- forming a mixture from at least one of the matrix polymer and precursors of the matrix polymer and the piezoelectric particles;
- introducing the mixture into a molding tool;
- and
- orienting the particle polarization of at least some piezoelectric particles at least one of during the introduction of the mixture and during crosslinking of the matrix polymer.
Dependencies are inferred from the claim text.