The invention relates to a multi-layered fabric comprising an absorption layer between two liquid-permeable layers, which multi-layered fabric has a surface with: 1) one or more connection areas wherein a connection is present between both layers; and 2) one or more absorption areas wherein both layers are not connected to each other. The absorption areas are capable of absorbing a liquid whereby the liquid is absorbed by the absorption layer. The connection between the layer L1 and the layer L2 comprises a fusion of the layer L1 and the layer L2, which fusion optionally also includes the absorption layer.

A multifunctional diffusion barrier comprising at least one organic polymer and a 2D graphene or 2D graphene derivative material and a method for preparing the multifunctional barrier. The multifunctional diffusion barrier can be used as a liquid and/or gas barrier, or as structural material, or as sealing material, or as a self-cleaning material or as protective material against UV radiation in aeronautical, automotive, marine or building field. The multifunctional diffusion barrier is suitable in producing parts of aircraft such as a fuel tank, a fuel tank conduit and a gasket.

A multifunctional diffusion barrier comprising at least one organic polymer and a 2D graphene or 2D graphene derivative material and a method for preparing the multifunctional barrier. The multifunctional diffusion barrier can be used as a liquid and/or gas barrier, or as structural material, or as sealing material, or as a self-cleaning material or as protective material against UV radiation in aeronautical, automotive, marine or building field. The multifunctional diffusion barrier is suitable in producing parts of aircraft such as a fuel tank, a fuel tank conduit and a gasket.

A method of infusing, infiltrating or impregnating a three dimensional printed, free-form fabricated or additive manufactured object having pores or voids in or between particles or sheets of material from which the object is manufactured may include infusing the object with a thermoplastic material. The thermoplastic material may be a linear or branched semi-crystalline aliphatic polyester with a melting point of between 40° C. and 65° C. which may have a solidification/crystalisation point between 20° C. and 40° C., and which may be introduced under controlled conditions of temperature and pressure. The thermoplastic material may be caused to penetrate the object by immersing the object in the thermoplastic material and controlling the frequency and amplitude of pressure oscillation to ensure sufficient infusion into the object to penetrate the pores or voids by at least 10% and bond particles or sheets of material from which the object is manufactured.

A method of infusing, infiltrating or impregnating a three dimensional printed, free-form fabricated or additive manufactured object having pores or voids in or between particles or sheets of material from which the object is manufactured may include infusing the object with a thermoplastic material. The thermoplastic material may be a linear or branched semi-crystalline aliphatic polyester with a melting point of between 40° C. and 65° C. which may have a solidification/crystalisation point between 20° C. and 40° C., and which may be introduced under controlled conditions of temperature and pressure. The thermoplastic material may be caused to penetrate the object by immersing the object in the thermoplastic material and controlling the frequency and amplitude of pressure oscillation to ensure sufficient infusion into the object to penetrate the pores or voids by at least 10% and bond particles or sheets of material from which the object is manufactured.

A multilayer sheet disposed at least between a plurality of heat sources and capable of conducting heat from the heat sources includes: a rubber sheet made of a rubber-like elastic body; heat insulating sheets laminated on both surfaces of the rubber sheet and capable of reducing heat conduction between the plurality of adjacent heat sources; and first heat conductive sheets laminated outside the heat insulating sheets in a separated manner and having more excellent heat conductivity than the rubber sheet and the heat insulating sheets, in which the heat insulating sheets have a bag shape wrapping the rubber sheet, and a cell unit including the multilayer sheet.

An heat dissipation sheet with excellent thermal conductivity, which is capable of reducing manufacturing cost, is disclosed. The heat dissipation sheet of the present invention comprises a graphite layer, a first graphene layer and a second graphene layer. The first graphene layer is attached to a first surface of the graphite layer through a first adhesive layer. The second graphene layer is attached to a second surface of the graphite layer through a second adhesive layer.

A composition of polyvinyl chloride for powder molding may include a polyvinyl chloride (A), a polyvinyl chloride (B), and a phosphate, among others. The polyvinyl chloride (A) may have an average particle diameter of 50 to 500 μm, and the polyvinyl chloride (B) may have an average particle diameter of 0.01 μm or more and less than 50 μm. An average polymerization degree of the polyvinyl chloride (A) may be 1350 or more, and the phosphate may comprise a polyoxyalkylene alkyl phosphate.

A heat insulating material (1) includes a heat insulating layer (10) which has a porous structural body, a reinforcing fiber, and nanoparticles of a metal oxide used as a binder, wherein the porous structural body has a skeleton formed by connecting a plurality of particles, has pores inside, and has a hydrophobic portion on at least one surface between a surface and an inside of the porous structural body. The heat insulating layer (10) has a mass loss rate of 10% or less in thermogravimetric analysis held at 500° C. for 30 minutes.

A heat insulating material (1) includes a heat insulating layer (10) which has a porous structural body, a reinforcing fiber, and nanoparticles of a metal oxide used as a binder, wherein the porous structural body has a skeleton formed by connecting a plurality of particles, has pores inside, and has a hydrophobic portion on at least one surface between a surface and an inside of the porous structural body. The heat insulating layer (10) has a mass loss rate of 10% or less in thermogravimetric analysis held at 500° C. for 30 minutes.