초록 ▼

An electrically conductive structural composite which can be heated by application of an electrical current. The structural composite includes a plurality of layers of structural fabric which have been treated and prepreged with a laminating resin and cured into a laminate structure. At least one of

An electrically conductive structural composite which can be heated by application of an electrical current. The structural composite includes a plurality of layers of structural fabric which have been treated and prepreged with a laminating resin and cured into a laminate structure. At least one of the layers of fabric is rendered conductive by being treated with conductive polymer produced by the steps of contacting an electrically insulating porous structural fabric with a liquid pyrrole; contacting the electrically insulating porous structural fabric with a solution of a strong oxidant capable of oxidizing pyrrole to a pyrrole polymer; and, oxidizing the pyrrole by the strong oxidant in the presence of a substantially non-nucleophilic anion and precipitating a conductive pyrrole polymer in the pores of the structural fabric. Electrical conducting means in electrical contact with the conductive layer are utilized for providing passage of electrical current for joule heating of the structural composite. The structural composite has been found to be particularly useful as an airplane surface which is capable of anti-icing and de-icing.

대표청구항 ▼

An electrically conductive structural composite which can be heated by application of an electrical current, comprising: (a) a plurality of layers of structural fabric which have been treated and prepreged with a laminating resin and cured into a laminate structure, at least one of said layers being

An electrically conductive structural composite which can be heated by application of an electrical current, comprising: (a) a plurality of layers of structural fabric which have been treated and prepreged with a laminating resin and cured into a laminate structure, at least one of said layers being a conductive layer of fabric which has been treated with conductive polymer produced by the steps of: (i) contacting an electrically insulating porous structural fabric with a liquid pyrrole, (ii) contacting said electrically insulating porous structural fabric with a solution of a strong oxidant capable of oxidizing pyrrole to a pyrrole polymer, and (iii) oxidizing said pyrrole by said strong oxidant in the presence of a substantially non-nucleophilic anion, and precipitating a conductive pyrrole polymer in the pores of said structural fabric; and (b) electrical conducting means in electrical contact with said conductive layer for providing passage of electrical current for joule heating of said structural composite.