Self-limiting electrospray compositions including a non-charge-dissipative component and/or a charge-dissipative component. Self-limiting electrospray composition including a plurality of charge-dissipative components and excluding a non-charge-dissipative component. Methods for forming layers of self-limiting thickness. Methods for determining a conductivity of a material. Methods for repairing a flaw in a layer on a surface of an object.

The present invention addresses the problem of providing a flexible electronic element substrate comprising a polyimide layer that has both low ultraviolet transmittance and high visible light transmittance and that is capable of suppressing ultraviolet degradation without any reduction in the performance of an electronic element. In order to solve this problem, the flexible electronic element substrate comprises a polyimide layer that satisfies all of (1) through (3) below: (1) maximum transmittance at a wavelength of 400±5 nm is 70% or higher at a thickness of 5 μm; (2) the b* value in an L*a*b* color system is 5 or less at a thickness of 5 μm; and (3) transmittance of light at a wavelength of 350 nm is 10% or less at a thickness of 5 μm.

Provided is a method of producing a graphitic film, comprising: (a) providing a suspension of a mixture of graphene oxide (GO) and aromatic molecules selected from petroleum heavy oil or pitch, coal tar pitch, a polynuclear hydrocarbon, a halogenated variant thereof, or a combination thereof, dispersed or dissolved in a liquid medium; (b) dispensing and depositing the suspension onto a surface of a supporting substrate to form a wet layer, wherein the procedure includes subjecting the suspension to an orientation-inducing stress or strain; (c) partially or completely removing the liquid medium; and (d) heat treating the resulting dried layer at a first temperature selected from 20° C. to 3,200° C. so that the GO and aromatic molecules are cross-linked, merged or fused into larger aromatic molecules to form the graphitic film, wherein the larger aromatic molecules or graphene planes in the graphitic film are substantially parallel to each other.

A multilayer composite is provided. The composite may include a plurality of metallic glass layers interleaved with a plurality of polymer layers. The composite may have a thickness of up to 100 microns. The composite may have a fatigue strength of at least 1.5 times of the fatigue strength of a monolithic metallic glass having the same thickness as the composite and the same chemical composition as the metallic glass layer.

The present invention belongs to the field of super-hydrophobic surface technology, and discloses a durable hydrophilic-super-hydrophobic bipolar self-cleaning composite film and a preparation method therefor. The preparation method is as follows: adding an epoxy silane coupling agent into an organic solvent; after stirring and mixing well, adding an amine curing agent and distilled water to the mixture; stirring and adding micron-sized solid particles and hydrophobic nano silicon dioxide particles; continuing stirring to obtain a hydrophilic layer solution; adding a hydrophobic modifier and a hydrophilic nano silicon dioxide particles into the solvent to obtain a hydrophobic layer solution; coating a pretreated substrate surface with the hydrophilic layer solution, and performing heating treatment at 60° C. to 80° C. for 10-50 min; then coating the surface with the hydrophobic layer solution, and performing heating treatment at 100° C. to 140° C. for 50-90 min to obtain the durable hydrophilic-super-hydrophobic bipolar self-cleaning composite film. The preparation method of the present invention is simple, and the super-hydrophobic surface of the obtained composite film has strong mechanical durability and a good industrial application prospect.

A simple spray coating process can be utilized to create epoxy/HNT nanocomposites with vertically aligned nanotubes. Important mechanical properties such as modulus and hardness values can be optimized and enhanced by controlling the level of nanotube dispersion during processing and the final orientation of the nanotubes. Thus, a technologically relevant processing scheme can be used to fabricate HNT nanocomposites with a high level of control over nanotube alignment and the resulting mechanical properties.

A modular apparatus for coating glass articles with a chemical compound includes a coating hood section (10a) including a series of interconnected walls (12) defining an interior chamber (18, 20a, 20b) having an inlet (32) and an outlet (44), a blower (24) positioned at least partially in the interior chamber (18, 20a, 20b) to carry air from the inlet (32) towards the outlet (44); and a connector (50) for connecting the coating hood section (10a) to an identical coating hood section (10b). The connector (50) for connecting being defined on at least one of the interconnected walls (12) of the coating hood section (10a).

An apparatus and method for producing a coated analytic substrate using a compact and portable automated instrument located in the laboratory setting at the point of use which can consistently produce one or a plurality of coated analytic substrates “on demand” for using the analytic substrate immediately after coating, preferably without a step of rinsing the coated analytic substrate before use. The apparatus preferably uses applicator cartridges having a reservoir containing the coating compositions used to form the coatings. Preferably the cartridges are removable and interchangeable to facilitate the production of individual analytic substrates having different coatings or different coating patterns. These coated analytic substrates have superior specimen adhesion characteristics due to the improved quality of the coatings applied by the coating apparatus and due to the quickness with which the coated analytic substrates can be used in the lab after production.

A film having a metallic luster that is easier to manufacture and exhibits little degradation over time, an article having the film formed thereon, and a manufacturing method for the film having a metallic luster. The film, which has a metallic luster, is characterized by containing a thiophene polymer. The manufacturing method for the film which has a metallic luster is characterized by a thiophene being polymerized using an oxidizing agent and made into a solution containing the thiophene polymer, and then coating and drying the solution containing the thiophene polymer on an article. The article having the film, which has a metallic luster formed thereon, is characterized by containing a thiophene polymer.

A method for producing a PEDOT film on a substrate comprising a substrate and at least one PEDOT layer on a surface of the substrate is disclosed. The method comprises applying a solution comprising an oxidant and a base inhibitor on a surface of the substrate; subjecting the oxidant-coated substrate to a polymerization step by exposing the surface (s) of the oxidant-coated substrate to EDOT monomer vapour at a polymerization temperature; and wherein, during the polymerization step, the temperature of the oxidant-coated substrate is kept at a controlled substrate temperature and wherein the controlled substrate temperature is 2-40° C. lower than the polymerization temperature. Further is disclosed a conducting PEDOT film, an electronic device comprising the conducting PEDOT film and different uses of the conducting PEDOT film. Further, is disclosed a method for producing a polymer film formed of a copolymer, a conducting polymer film, an electronic device comprising the conducting polymer film and different uses of the conducting polymer film.