Abstract:
The present disclosure provides compositions, articles thereof, and methods of forming compositions. In at least one aspect, a composition includes (1) an epoxy, (2) an amino or amido hardener, (3) a polyaniline, (4) a dopant selected from a triazolyl, a thiazolyl, a quinolinyl, a salicylate, a benzoate, a glycolate, a phosphate, a sulfonate, an oxalate, or combination(s) thereof; and (5) a pigment selected from titanium dioxide, silica, talc, mica, aluminium stearate, or combination(s) thereof. The polyaniline+dopant comprises greater than 6 wt %, by weight of the composition. In at least one aspect, a method includes introducing an acid form of a polyaniline to a hydroxide to form a polyaniline hydroxide. The method includes introducing a dopant to the polyaniline hydroxide to form a doped polyaniline.
Abstract:
The present disclosure provides methods of coating a substrate. A method includes depositing a conductive coating including an electrically conductive material over the substrate to form a conductive layer having a sheet resistivity of about 10Ω/□ to about 1000Ω/□. The method includes depositing an anti-icing layer comprising nanomaterials over the conductive layer to form a coating system.
Abstract:
Compositions are described for protecting a metal surface against corrosion. The composition includes a corrosion-inhibiting particle. The corrosion inhibiting particle may be usable in an epoxy resin-based coating or an olefin resin-based coating. The particle may include a core and a protectant. The core may include a water soluble corrosion inhibitor. The protectant may be disposed on at least a portion of a surface of the core and may be covalently or ionically bonded to a thiol group of the corrosion inhibitor. The protectant may be configured to reduce reaction between the core and the epoxy resin or the olefin resin. Methods of making the compositions are also disclosed.
Abstract:
Described herein are methods for the continuous preparation of 1,2-di(furan-2-yl)ethane-1,2-diol from furan-2-carbaldehyde. The methods can proceed chemically or electrochemically. In certain examples, the methods further comprise the application of a static mixer. The present methods produce 1,2-di(furan-2-yl)ethane-1,2-diol in greater yield, purity, chemoselectivity, and stereoselectivity than traditional batch methods.
Abstract:
The present disclosure provides compositions including a conductive polymer; and a fiber material comprising one or more metals disposed thereon. The present disclosure further provides a component, such as a vehicle component, including a composition of the present disclosure disposed thereon. The present disclosure further provides methods for manufacturing a component including: contacting a metal coated fiber material with an oxidizing agent and a monomer to form a first composition comprising a metal coated fiber material and a conductive polymer; and contacting the first composition with a polymer matrix or resin to form a second composition.
Abstract:
An electrically conductive and corrosion resistant graphene-based coating composition, including a binder, a graphene-filler; and a dispersing agent, wherein the graphene filler comprises a plurality of graphene stacks.
Abstract:
Aspects described herein generally relate to a sol-gel that is the reaction product of a hydroxy organosilane, a metal alkoxide, an acid stabilizer, and a corrosion inhibitor. The hydroxy organosilane is represented by Formula (I): wherein R is selected from alkyl, cycloalkyl, ether, and aryl. The acid stabilizer is at a molar ratio of acid stabilizer to metal alkoxide of 1:1 or greater and the sol-gel has a pH from about 3 to about 4.
Abstract:
An antenna includes an ion exchange material and at least one polymer member coupled to a communication circuit. The at least one polymer member is configured to, responsive to receiving a bias voltage, interact with the ion exchange material to change electrical conductivity of the at least one polymer member.
Abstract:
Formulations, coatings and methods for coating a corrosion inhibiting formulation on a substrate are provided. The corrosion inhibiting formulation includes (a) at least one resin, (b) at least one Brønsted acid and (c) at least one thio-containing corrosion inhibitor.
Abstract:
An electrically conductive and corrosion resistant graphene-based coating composition, including a binder, high-pressure airless-sprayed expanded graphene stacks, carbon fibers, and a dispersing agent, wherein the graphene-based coating composition has an electrical conductivity of at least 2 S/cm and a pull-off adhesion of at least 2 MPa.