A composite material for passive radiative cooling is provided. In some embodiments, the composite material includes a base layer, and at least one emissive layer located adjacent to a surface of the base layer. In some embodiments, the at least one emissive layer is affixed to the surface of the base layer via a binding agent. In some embodiments, the surface of the base layer comprises a reflective substrate comprising an adhesive layer. In some embodiments, the at least one emissive layer is affixed to the base layer via the adhesive layer of the base layer.

The electret-treated sheet includes: a core layer (A) which is a porous film containing at least a thermoplastic resin; a surface layer (X) disposed on one side of the core layer (A); and a back surface layer (Y) disposed on the other side of the core layer (A), the surface layer (X) and the back surface layer (Y) each having a charged outermost surface, wherein the electret-treated sheet has a water vapor permeability coefficient of 0.1 to 2.5 g.Math.mm/m.sup.2.Math.24 hr; the core layer (A) has a pore aspect ratio of 5 to 50 and an average pore height of 2.5 to 15 μm; the surface layer (X) and the back surface layer (Y) each have a thickness of 5 to 200 μm; and the surface layer (X) includes a heat seal layer (B) including the outermost surface, wherein the heat seal layer (B) has a melting point of 50 to 140° C.

According to at least one embodiment, there is provided a hard coat laminated film, including, from a surface layer side, a second hard coat, a first hard coat, and a transparent resin film layer, where the first hard coat and the transparent resin film layer are laminated directly, where the first hard coat is formed of a coating material including: (A) 100 parts by mass of a polyfunctional (meth)acrylate; and (B) 1 to 100 parts by mass of an N-substituted (meth)acrylamide compound, where the second hard coat is formed of a coating material containing no inorganic particles, and where the transparent resin film is a transparent multilayer film or a transparent monolayer film made of a poly(meth)acrylimide resin, where the transparent multilayer film includes a surface layer made of a poly(meth)acrylimide resin, the first hard coat being formed on the surface layer.

A composite member (1) satisfies the following expressions. X/(E×|CTE(B)−CTE(A)|)≥50, X/(E×|CTE(B)−CTE(C)|)≥50, Y/|CTE(B)−CTE(A)|×L(BA)≤50, and Y/|CTE(B)−CTE(C)|×L(BC)≥50. X: shear bond strength (MPa) between the heat dissipating base substrate and heat generating member, Y: fracture elongation of the thermoconductive insulating adhesive film, E: modulus of elasticity (MPa) of the thermoconductive insulating adhesive film, CTE(A): linear expansion coefficient (° C..sup.−1) of the heat dissipating base substrate, CTE(B): linear expansion coefficient (° C..sup.−1) of the thermoconductive insulating adhesive film, CTE(C): linear expansion coefficient (° C..sup.−1) of the material of the surface of the heat generating member in contact with the thermoconductive insulating adhesive film, L(BA): initial contact length (m) between the thermoconductive insulating adhesive film and the heat dissipating base substrate, and L(BC): initial contact length (m) between the thermoconductive insulating adhesive film and the heat generating member.

Disclosed is a biaxially oriented polyester film that is superior in transparency and easy to perform secondary processing such as coating and vapor deposition, and satisfies performance after the secondary processing. The biaxially oriented polyester film consists of a polyester resin composition including particles, and at least one surface of the film satisfies all of the following requirements (1) to (3): (1) the number of micro protrusions having a height of less than 3 nm per an area of 4×10.sup.−12 m.sup.2 of 250 or more and 600 or less; (2) the number of micro protrusions having a height of 3 nm or more per an area of 4×10.sup.−12 m.sup.2 of 300 or more and 600 or less; and (3) an arithmetic average height Sa of 0.010 μm or more and 0.025 μm or less.

A polymer pre-laid waterproof rolling material, including a polymer base material layer, a pressure-sensitive adhesive layer on the polymer base material layer, and a sand anti-sticking layer on the pressure-sensitive adhesive layer; the pressure-sensitive adhesive layer includes: 25-35 parts by mass of a styrene-isoprene-styrene block copolymer; 32-38 parts by mass of a C5 petroleum resin; 5-12 parts by mass of a 145 pentaerythritol modified rosin resin; 25-32 parts by mass of a naphthenic oil; 0.3 parts by mass of an antioxidant; and 0.5 parts by mass of a UV light stabilizer; the C5 petroleum resin has a softening point of 95-105° C. and a color number of less than 4; the naphthenic oil has a kinematic viscosity of 9-11 mm.sup.2 at 100° C. and a density of 0.8950 g/cm.sup.3-0.9100 g/cm.sup.3 at 20° C. The pressure-sensitive adhesive layer has a stronger bonding effect with sintered sand and further improves the bonding effect with concrete.

A composite panel structure of a polymer matrix cote sandwiched by metal layers is described. The polymer matrix comprises 1-30 wt % fluoropolymer and 70-99 wt % of a flame retardant mineral. The fluoropolymer may be polyvinylidene fluoride (PVDF) with a high limiting oxygen index, which confers fire resistance properties to the polymer matrix and the composite panel structure. The composite panel structure may be used on the exterior of buildings and may fulfill building code requirements for the polymer matrix core being noncombustible as determined by ASTM E136 and CAN/ULC S114 compliance.

Provided is a thermal conducting sheet, including: a binder resin; insulating-coated carbon fibers; and a thermal conducting filler other than the insulating-coated carbon fibers, wherein the insulating-coated carbon fibers include carbon fibers and a coating film over at least a part of a surface of the carbon fibers, the coating film being formed of a cured product of a polymerizable material.

Provided is a thermal conducting sheet, including: a binder resin; insulating-coated carbon fibers; and a thermal conducting filler other than the insulating-coated carbon fibers, wherein the insulating-coated carbon fibers include carbon fibers and a coating film over at least a part of a surface of the carbon fibers, the coating film being formed of a cured product of a polymerizable material.

The invention discloses a bionic laminated thermal insulation material, which imitates a multi-thin laminated and thin-layer micro-pore structure of Sequoia sempervirens bark with fire resistance, corrosion resistance and excellent thermal insulation performance. A low thermal conductivity microporous powder is used as main raw material, while reinforcing agent, plasticizer and porosity agent are added to form microporous thin-layer units, and each thin-layer unit is bonded and laminated to make a laminated thermal insulation material. The thermal conductivity of the finished products is as low as 0.02˜0.05 W/m.Math.k, with good thermal insulation and mechanical properties, which can be used in a temperature range below 1000° C., with better thermal insulation and energy-saving effect and toughness than ordinary thermal insulation materials, significantly reducing the thickness of the insulation layer, and can be widely used in industrial furnaces, thermal engineering devices, insulation pipes and other fields.