摘要:
A polysiloxane(amide-ureide) which inhibits the ability of ice to adhere to a surface of a physical object when applied to a surface of a substrate. The polysiloxane(amide-ureide) has a backbone including: (i) at least one diamine-terminated polysiloxane of the general formula: wherein, for each unit of the polysiloxane R1 and R2 are independently selected from the group consisting of C1 to C10 alkyls, aryls, and polyaryls; for each unit of the polysiloxane R3 and R4 are independently selected from the group consisting of hydrogen, C1 to C6 alkyls, aryls, C3 to C6 cycloaliphatics, and C3 to C6 heterocycles; for each unit of the polysiloxane A1 and A2 are independently selected from the group consisting of hydrogen, C1 to C6 alkyls, aryls, polyaryls, C3 to C6 cycloaliphatics, and C3 to C6 heterocycles; for each unit of the polysiloxane, x is a number from 1 to 1000; (ii) at least one aromatic diamine; (iii) at least one diisocyanate; and (iv) at least one halide substituted dicarboxylic acid.
摘要:
A method of improving the material properties of a composite by electrodepositing particular polymers, organic compounds or inorganic compounds onto electrically conductive fibrous substrates, whether individual fibers or as a fabric, to form composites of improved structural properties and having particular physical properties such as being ice phobic, fire resistant, or electrically conductive.
摘要:
A method of improving the material properties of a composite by electrodepositing various polymers, organic compounds or inorganic compounds onto each individual carbon (graphite) fiber strand, whether individual fiber or as a fabric to form an homogeneous chemically-bonded composite as opposed to the formation of a heterogeneous, non-chemically bonded composite. Thus, electrodeposition forms a unique discrete interface at the molecular layer (nanolayer) between the reinforcement (fiber) and the matrix (resin) over as opposed to any previous resin infusion process.
摘要:
The present invention is directed to a method for applying to a substrate, in the form of a seal, a polysiloxane-containing coating, preferably a polysiloxane(amide-ureide) coating capable of inhibiting corrosion as well as the accumulation of ice. One embodiment of the present invention is directed to a polysiloxane(amide-ureide) that forms a durable, long lasting, anti-corrosive and anti-ice coating when applied to a substrate as a seal.
摘要:
A method for preparing and treating the surfaces of structural components, such as structural aircraft wing and fuselage skin panels, spar, spar assemblies, ribs, stiffeners, hinges, doors, etc., and the mechanical components attached to these aforementioned structural components, with a semi-permeable, corrosion-inhibiting organic coating. The method being particularly applicable for the improved sealing process of the faying surfaces of these aircraft components.
摘要:
A method of improving the material properties of a composite by electrodepositing various polymers, organic compounds or inorganic compounds onto each individual carbon (graphite) fiber strand, whether individual fiber or as a fabric to form an homogeneous chemically-bonded composite as opposed to the formation of a heterogeneous, non-chemically bonded composite. Thus, electrodeposition forms a unique discrete interface at the molecular layer (nanolayer) between the reinforcement (fiber) and the matrix (resin) over as opposed to any previous resin infusion process.
摘要:
A test method for determining, quantifying, and qualifying the flow characteristics of a sealant material compound comprising the steps of applying a uniform layer of known initial mass of sealant material between two test surfaces and compressing the sealant material between the surfaces at a specific pressure for a specific length of time, and at a specific temperature, causing an amount of sealant to be extruded from between the test surfaces. The amount of the extruded sealant is measured and compared to the total mass of initial sealant material to determine the ratio of the extruded to initial sealant material. Based upon the mass ratio of extruded sealant material versus the initial sealant material, the flow characteristics of the sealant material may be expressed for any given combination of temperature, pressure, and duration and compared to other sealant materials.
摘要:
A test method for determining, quantifying, and qualifying the stress-relaxation characteristics of a sealant material compound comprising applying a sealant material layer between a first plate and a second plate, disposing a fastener assembly through the plates, and providing tension preload upon the fastener assembly so as to compress the plates together. The elongation of the fastener assembly is measured and the test assembly is heated and cooled under controlled parameters and the elongation of the fastener assembly is again measured. The stress-relaxation of the sealant material compound is correlated to the corresponding change in fastener assembly elongation for the purposes of measuring, quantifying, and qualifying the sealant material compound.