The present invention belongs to the technical field of energy conversion devices, which provides an rGO-PEI/PVDF pyroelectric thin film, and the method for preparing the film, as well as a self-energized bracelet produced based on such film, which utilizes the reduced graphite oxide after modified by polyethyleneimine (PEI) (rGO-PEI) as photothermal conversion material, and the silver-plated polarized polyvinylidene fluoride (PVDF) film as pyroelectric conversion material. The rGO-PEI photothermal material is fixed to the surface of the PVDF through a transparent film, and prepare the self-energized bracelet based on it. The obtained bracelet has an output power of up to 21.3 mW/m2, and does not require additional mechanical devices to control the temperature during operation, wherein, the thermoelectric conversion, rectification, storage and application are realized through temperature fluctuation produced by absorbing sunlight during doing outdoor sports, utilizing temperature difference of air flow, and sweeping gesture, etc.

Provided are a vapor deposition film, a black metallic product, a vehicle interior/exterior member, a container, and a casing, which are capable of expressing a jet black metallic design having a luxurious appearance on items of various dimensions by a method simpler than a case of applying black plating and are excellent in physical properties such as light resistance. The vapor deposition film comprises: a protection layer; a decoration layer; and a vapor deposition layer, wherein the vapor deposition layer includes a metal including at least any one of indium and tin, wherein the decoration layer includes a resin and a black pigment, and wherein the black pigment includes carbon black and manganese ferrite having a spinel structure ((Fe,Mn)(Fe,Mn).sub.2O.sub.4).

Systems and methods for making a structure. The methods comprise: obtaining a composite tube structure; and coupling a tube doubler structure at any point along the composite tube structure. The tube doubler structure comprises a first lamina layer formed of a first material and a second lamina material formed of a second material different than the first material. The combination of the first and second materials provides a tube doubler structure with (i) a bulk bearing strength greater than a bearing strength of the composite tube structure and (ii) hoop and axial bulk Coefficient of Thermal Expansions respectively matching hoop and axial Coefficient of Thermal Expansions of the composite tube structure by a given amount.

Composite materials are provided which may include one or more sheets of carbon fibers woven in orthogonal direction bundles; carbon nanotubes embedded within pores between the bundles; and a matrix material in which the one or more sheets and the carbon nanotubes are embedded. In one case, the carbon fibers lie substantially in an x-direction and a y-direction and the carbon nanotubes are oriented substantially in a z-direction, which is substantially perpendicular to the x- and y-directions. Methods for making the composite materials are also provided.

A laminated structure, includes two glass sheets, one exterior and one interior, that are bound together by an interlayer including at least one layer of a plastic material, the exterior first sheet delineating an exterior surface of the structure and the second glass sheet delineating an interior surface of the structure, the structure further including, between the two glass sheets, a louver film that selectively filters towards the interior surface light rays incident on at least one segment of the exterior surface of the structure, the film having a louver angle α included between 15° and 75° with respect to the normal to the exterior surface of the structure.

A metal-fiber reinforced resin material composite is provided which improves the shear strength between a metallic member and a fiber reinforced material by more strongly bonding the metallic member and the fiber reinforced resin member, and which is very light and has excellent workability while increasing strength.

[Solution]

This metal-fiber reinforced resin material composite is provided with a metallic member and with a fiber reinforced resin material that is stacked on at least one surface of the metallic member and combined with the metallic member, wherein the fiber reinforced resin material comprises a matrix resin containing a thermoplastic resin, a reinforcing fiber material included in the matrix resin, and a resin layer interposed between the reinforcing fiber material and the metallic member and comprising a resin of the same type as the matrix resin. The shear strength of the metallic member and the fiber reinforced resin material is greater than or equal to 0.8 MPa.

A flame retardant SMC laminate composition comprising a layer of and effective amount of flame retardant material attached to a layer of an SMC composition for providing a flame retardant moldable laminate.

A superstrate can include a body having a surface; a buffer layer overlying the surface; and a protective layer overlying the buffer layer, wherein the protective layer has a surface roughness that is equal to or less than a surface roughness of the surface of the body. The protective layer can include a material that can be selectively removed with respect to the buffer layer, and the buffer layer can include a material that can be selectively removed with respect to the body of the superstrate. The superstrate can be used for more planarization or other processing sequences before the body needs to be replaced, as any defects that may form extend into the protective layer or buffer layer and not reach the body. The layers can be removed and replaced by corresponding new layers without significantly adversely affecting the body.

A cross-linked polyethylene (PEX) tubing having an aluminum welded tube as reinforcement and method of making PEX tubing disclose tubing having an inner PEX layer and an outer polyethylene layer with an intermediate aluminum tube enveloped by adhesive layers for joining the inner and outer polyethylene layers with the aluminum tube. Carbon black particles are included in the polyethylene material for increasing absorption and dispersion of UV and thermal energy.

Cards made in accordance with the invention include a specially treated thin decorative layer attached to a thick core layer of metal or ceramic material, where the thin decorative layer is designed to provide selected color(s) and/or selected texture(s) to a surface of the metal cards. Decorative layers for use in practicing the invention include: (a) an anodized metal layer; or (b) a layer of material derived from plant or animal matter (e.g., wood, leather); or (c) an assortment of aggregate binder material (e.g., cement, mortar, epoxies) mixed with laser reactive materials (e.g., finely divided carbon); or (d) a ceramic layer; and (e) a layer of crystal fabric material. The cards may be dual interface smart cards which can be read in a contactless manner and/or via contacts.