摘要:
Broadband reflectors include a UV-reflective multilayer optical film and a VIS/IR-reflective layer. In various embodiments, the VIS/IR reflective layer may be a reflective metal layer or a multilayer optical film. Concentrated solar power systems and methods of harnessing solar energy using the broadband reflectors and optionally comprising a celestial tracking mechanism are also disclosed.
摘要:
The invention relates to a moisture resistant composition comprising: a) from 20 to 80 weight percent based on the total weight of the composition of a polyetherimide copolymer made from a monomer mixture comprising 3, 3'bisphenol-A dianhydride (BPADA), and 4, 4'– diaminodiphenyl sulfone (DDS); b) from 5 to 75 weight percent based on the total weight of the composition of polyetheretherketone (PEEK); and c) from 0 to 30 weight percent based on the total weight of the composition of a filler. The invention relates to a reflector substrate comprising a moisture resistant layer metalized with a reflective layer, wherein the moisture resistant layer comprising the moisture resistant composition. The invention relates to a method for producing a metalized coating without a primer comprising applying a reflective layer directly to a moisture resistant layer in the absence of a primer, wherein the moisture resistant layer comprises the moisture resistant composition.
摘要:
Lightweight articles comprising a polymeric material at least partially coated with a fine-grained metallic material are disclosed. The fine-grained metallic material has an average grain size of 2nm to 5,000nm, a thickness between 25 micron and 5cm, and a hardness between 200VHN and 3,000 VHN. The lightweight articles are strong and ductile and exhibit high coefficients of restitution and a high stiffness and are particularly suitable for a variety of applications including aerospace and automotive parts, sporting goods, and the like.
摘要:
The present invention relates to polymerizable N-substituted acrylamide phosphorus-containing monomers, organic polymers formed from the same. Incorporation of said monomers into adhesives, pigment dispersants, coatings or films for polar surfaces or particles gives improved adhesive, anti-corrosive, and flame retardant properties.
摘要:
The invention relates to a laminate comprising two plastic films and (optionally in between a metal or metal oxide layer and) a layer of an organic compound other than triazine, the laminate having a lamination strength of about 2 N/inch or more as measured in a 90 degree tensile testing at 30 mm/min. The invention further relates to a composite layer, suitable for said laminate. The invention further relates to laminate having a crystalline organic compound other than triazine to improve the barrier properties.
摘要:
A linear polyimide is produced from mellophanic dianhydride, diamine (NH 2 -A-NH 2 ), and a monofunctional acid anhydride and contains a repeating unit represented by the following general formula (3);
(wherein A represents a divalent aromatic diamine residue or aliphatic diamine residue, B represents a monofunctional acid anhydride residue, and n represents a degree of polymerization). The polyimide has good solubility in organic solvents and thermoplasticity and also has high adhesive force to a copper foil and a non-thermoplastic polyimide film, a high glass transition temperature, and high toughness.
摘要:
A flexible film is provided. The flexible film includes a dielectric film; and a metal layer disposed on the dielectric film, wherein the ratio of the thickness of the metal layer to the thickness of the dielectric film is about 1:1.5 to 1:10. The flexible film has excellent plating, adhesive strength, thermal resistance, folding endurance and chemical resistance properties.