Abstract:
A transparent pressure sensing film composition is provided having a matrix polymer; and, a plurality of conductive particles; wherein the matrix polymer comprises 25 to 100 wt % of an alkyl cellulose; and, wherein an electrical resistivity of the transparent pressure sensing film is variable in response to an applied pressure having a z-component directed along the thickness of the transparent pressure sensing film such that the electrical resistivity is reduced in response to the z-component of the applied pressure.
Abstract:
A transparent pressure sensing film is provided having a matrix polymer; and, a plurality of hybrid particles; wherein the plurality of hybrid particles are disposed in the matrix polymer; wherein each hybrid particle in the plurality of hybrid particles, comprises a plurality of primary particles bonded together with an inorganic binder; wherein an electrical resistivity of the transparent pressure sensing film is variable in response to an applied pressure having a z-component directed along the thickness of the transparent pressure sensing film such that the electrical resistivity is reduced in response to the z-component of the applied pressure.
Abstract:
A composite transparent pressure sensing film is provided having a matrix polymer wherein the matrix polymer is a combination of 25 to 75 wt % of an alkyl cellulose and 75 to 25 wt % of a polysiloxane; and, a plurality of hybrid particles, wherein each hybrid particle in the plurality of hybrid particles, comprises a plurality of primary particles bonded together with an inorganic binder; wherein the plurality of hybrid particles are disposed in the matrix polymer; wherein an electrical resistivity of the composite transparent pressure sensing film is variable in response to an applied pressure having a z-component directed along the thickness of the composite transparent pressure sensing film such that the electrical resistivity is reduced in response to the z-component of the applied pressure.