摘要:
A laminate structure may include: an aluminum layer; a glass composite layer adjacent to the aluminum layer; and/or a carbon composite layer adjacent to the glass composite layer, opposite to the aluminum layer. The glass composite layer may include one or more glass-fiber-reinforced thermoplastic prepreg plies. The carbon composite layer may include one or more carbon-fiber-reinforced thermoplastic prepreg plies. A laminate structure may include: a first aluminum layer; a first glass composite layer adjacent to the first aluminum layer; a first carbon composite layer adjacent to the first glass composite layer, and opposite to the first aluminum layer; and/or a second glass composite layer adjacent to the first carbon composite layer, and opposite to the first glass composite layer. The first glass composite layer may include one or more glass-fiber-reinforced thermoplastic prepreg plies. The first carbon composite layer may include one or more carbon-fiber-reinforced thermoplastic prepreg plies.
摘要:
The invention relates to a composite system for the back contacting of photovoltaic modules, consisting of a metal foil, which has a conducting-track structure, and at least one electrically insulating and stabilizing polymer layer, which is applied to the metal foil and connected to the metal foil in an adhering manner. The main task of the stabilizing polymer layer is to mechanically stabilize the structured conducting tracks such that the structured conducting tracks do not move when shear forces occur, which are triggered, for example, by elevated temperature during the lamination process or during operation.
摘要:
A resin composition for a printed wiring board containing a cyanate compound (A); a maleimide compound (B); and a benzoguanamine compound (C) having an aminomethyl group represented by the following general formula (1) : wherein R is a hydrogen atom or a substituent selected from a group consisting of a hydrocarbon group having 1 to 10 carbon atoms, an alkoxyl group having 1 to 10 carbon atoms, an aryloxy group having 6 to 10 carbon atoms, a hydroxyl group, an amide group, and a halogen atom, and n is an integer of 1 to 2.
摘要:
The invention relates to a container for emanating volatile substances, The container comprises a container body which has at least one opening and is closed by a lid film. The lid film comprises an outer multi-layer film having at least one barrier layer impermeable to the volatile substances, a coextruded inner multi-layer film having at least one layer permeable to the volatile substances. The coextruded inner multi-layer film is bonded on one side to the outer multi-layer film and on another side to the container. The coextruded inner multi-layer film consists of at least a polyethylene layer, a release layer comprising a polymer selected from the group consisting of EVOH and PETg, a peelable interface interposed between the release layer and a layer permeable to the volatile substances, whereby said permeable layer comprises a polymer selected from the group consisting of mVLDLLDPE, ethylene vinyl acetate copolymer, and ethylene n-butyl acrylate copolymer.
摘要:
The invention refers to a structural composite component (1, 1'), in particular for an aircraft or spacecraft (10), comprising: a lightning strike protection layer (2, 2'); and a composite battery (3) comprising a cathode layer (4, 4') and a separation layer (7), wherein the lighting strike protection layer (2, 2') is formed integrated with the cathode layer (4, 4'), and wherein the separation layer (7) is configured for providing acoustic damping, and/or fire barrier, and/or impact resistance to the structural composite component (1, 1'). The invention further provides a method for configuring such a structural composite component (1, 1'); and an aircraft or spacecraft (10) comprising such a structural composite component (1, 1').
摘要:
The invention relates to a substrate (1, 10) for electrical circuits, comprising at least one metal layer (2, 3, 14) and a paper ceramic layer (11), which is joined face to face with the at least one metal layer (2, 3, 14) and has a top side and bottom side (11a, 11b), wherein the paper ceramic layer (11) has a large number of cavities in the form of pores. Especially advantageously, the at least one metal layer (2, 3, 14) is connected to the paper ceramic layer (11) by means of at least one glue layer (6, 6a, 6b), which is produced by applying at least one glue (6a', 6a'', 6b', 6b'') to the metal layer (2, 3, 14) and/or to the paper ceramic layer (11), wherein the cavities in the form of pores in the paper ceramic layer (11) are filled at least at the surface by means of the applied glue (6a', 6a'', 6b', 6b'').
摘要:
A rigid cap is provided for a motor vehicle, in particular, for the engine of a motor vehicle. The rigid cap has a first layer made of a metal material and at least a second layer comprising polyamide 11. Preferably, the second layer is made entirely of polyamide 11 and, even more preferably, entirely covers the first layer. The cap may be a press-fit cap or a threaded cap.
摘要:
The invention relates to a method for producing a sandwich structure comprising two steel face sheets separated by a polymer layer, said method comprising the following steps: - the sandwich structure is sized according to an objective to be achieved, by carrying out the following sub-steps: - the objective to be achieved is defined in terms of three target values, that is to say tensile stiffness Tc, expressed in kN/mm, bending stiffness Bc, expressed in kN/mm and mass per unit area Mc, expressed in Kg/m2; - a tolerance margin for achieving the target values is defined; - the sandwich structure is defined in terms of five variables, that is to say the thickness Ea of the steel face sheets, expressed in mm, the thickness Ep of the polymer layer, expressed in mm, the intrinsic Young's modulus Yp of the polymer layer, the intrinsic density dp of the polymer layer and the volume fraction Rp of the polymer layer, expressed as volume percent of the material polymer layer; - the combinations of Ea, Ep, Yp, dp and Rp that make it possible to achieve the target values within the defined tolerance margin are defined; - for every variable a useful range is determined from the above; - the steel and polymer layer are selected for which every variable is situated in the range defined in the previous step; - and the corresponding sandwich structure is produced.
摘要:
A sandwich material having both structural strength and significant acoustic attenuation. In one embodiment, a sandwich is composed of an architected core secured between two facesheets, with a compliant layer forming the connection between the core and the facesheets. The compliant core has a low modulus, resulting in a low speed for elastic shear waves in the sandwich, at low static loads. At high static loads the compliant material stiffens and allows the sandwich to exhibit significant structural strength.
摘要:
The present invention relates to an organic silicone resin aluminum base copper clad laminate and preparation method thereof. The aluminum base copper clad laminate comprises sequentially a copper foil layer, an insulation layer and an aluminum plate layer, wherein, the insulation layer is prepared from an organic silicone resin composition, and the organic silicone resin composition comprises the following components in parts by weight: 100 parts of an organic silicone resin, 40-100 parts of a vinyl-terminated silicone oil, 0.0001-0.5 parts of a catalyst, and 0.00001-0.1 parts of an inhibitor. By adopting an organic silicone resin as a substrate polymer, the electrical insulation and heat resistance functions of the aluminum base copper clad laminate are improved. Moreover, the vinyl-terminated silicone oil as reactive diluent can effectively reduce brittleness of a silicone resin, improving the toughness of the organic silicone resin composition. The aluminum base copper clad laminate has advantageous electrical insulation, heat-conduction, high-temperature resistance and resistance to long-term aging.