The present disclosure relates to a pre-treatment composition for sealing polymeric film, said composition comprising: 0.5 to 10 weight % of a halogenated carboxylic acid, a surfactant, and a liquid solvent.

The invention relates to a method for connecting two fibre-reinforced plastic components, comprising the following steps: producing a first fibre-reinforced plastic component, wherein a fabric made of fibrous matting is provided, which is impregnated with a resin-curing agent mixture, which is then subsequently cured, wherein the part of the surface of the first fibre-reinforced plastic component, which is to be later adhered to the second fibre-reinforced plastic component (hereinafter also referred to as joining surface), is masked with an adhesive strip before the impregnation of the fibrous matting with the resin-curing agent mixture; producing a second fibre-reinforced plastic component using the above steps, wherein the part of the surface of the second fibre-reinforced plastic component, which is to be later adhered to the first fibre-reinforced plastic component, is also masked with an adhesive strip before the impregnation of the fibrous matting with the resin-curing agent mixture; removing the adhesive strips from the two finished fibre-reinforced plastic components; bringing the two joining surfaces in contact; introducing a resin-curing agent mixture between the two joining surfaces; curing the resin-curing agent mixture, wherein the adhesive strip has a carrier film, on one side of which an adhesive mass, in particular self-adhesive mass is applied, and wherein the carrier film consists of fluoropolymers, polyethylene polymers, undrawn polypropylenes or of metal, and the adhesive mass is an acrylate or silicon adhesive mass.

A method for plasma treating a surface of a first substrate is disclosed. The method may comprise generating a plasma flume using a plasma treatment device having a nozzle. The plasma flume may emanate through a flume aperture of the nozzle at an emanation angle of about 5 degrees or less. The emanation angle may be defined as an angle between a central axis of the nozzle and a central axis of the flume aperture. The method may further comprise plasma treating the surface of the first substrate with the plasma flume by scanning the plasma flume over the surface of the first substrate. The first substrate may be one of a consolidated thermoplastic material and a cured thermoset material.

A method of joining first and second layers of polymeric composite material includes disposing a portion of a molded insert having a bottom end into a top surface of a first layer of material and then applying a layer of adhesive between the top surface of the first layer and a bottom surface of a second layer of material to create a bond-line thickness. Next, a top surface of the second layer is pierced with a headless end of a fastener and interlocked into the molded insert. A layer of protective coating is then applied to the top surface of the second layer of material to cover the interlocked fastener.

A 3D processing device configured to attach a decorative film on a surface of a 3D glass, the 3D processing device includes a decorative film pre-deformation unit and a attachment unit. The decorative film pre-deformation unit includes an upper mould and a lower mould opposite to the upper mould, wherein the upper mould engages the lower mould to press the decorative film and cause the decorative film to have a shape matching a surface of the 3D glass. The attachment unit defines a sealing chamber, and includes a mould and a gas bag within the sealing chamber, wherein the mould is configured to support the 3D glass. The present disclosure further provides a method thereof.

Provided is a method for manufacturing a fishing net formed from a plastic net that can be handled by winding or folding although the net has plastic rigidity. The fishing net is manufactured by (1) a step of preparing a multifilament yarn formed by bundling a plurality of core-sheath type composite filaments, in each of which a core component is made of polyethylene terephthalate and a sheath component is made of polyolefin, (2) a step of preparing a yarn thread obtained by paralleling a plurality of the multifilament yarns, (3) a step of twisting or braiding four yarn threads 11, 12, 13, 14 to obtain a net constructed with strands 1 and intersections 2, (4) a step of heat-treating the net under without pressure to melt the sheath component of the yarn threads 11, 12, 13, 14 constituting the strands 1 and the intersections 2, followed by solidifying, thus obtaining a plastic net, and (5) a step of forming the fishing net using the plastic net.

Disclosed is a method for connecting a connecting face of an edge material to a connecting face of a workpiece by a synthesis element, including the steps: of making available the workpiece, feeding the synthesis element, which is made available by at least one function film composed of an adhesive, activating the adhesive function film, applying the synthesis element to one of the connecting faces, connecting the synthesis element to the other of the connecting faces, wherein the workpiece and the edge material are connected by the synthesis element located between them. Furthermore, there is disclosed a synthesis element and a device for connecting a connecting face of an edge material to a connecting face of a workpiece.

A method of forming a composite article. One step involves applying adhesive on surfaces of a plurality of sublaminate units, each ply of each sublaminate unit comprising fibers impregnated with resin which has been initially cured to 30% to 50% of full cure. The initially cured sublaminate units are then arranged in a stack, which stack is pressed against a surface of a forming tool. While pressure is being applied, the stack is heated to an intermediate temperature above a glass transition temperature of the resin for a time interval sufficient to intermediately cure the resin to 50% to 70% of full cure to form a composite laminate having a contour defined by the surface of the forming tool. Then the resin is finally cured at a final temperature higher than the intermediate temperature.

A device for attaching a decorative film to a surface of a 3D glass, includes a vacuum chamber, an upper mould, and a lower mould. The upper mould includes an upper planar pressing portion and an upper curved portion. The lower mould includes a lower planar pressing portion and a lower curved portion, the upper planar pressing portion and the lower planar pressing portion are configured to correspond to a planar portion of the 3D glass, the upper curved portion and the lower curved portion are configured to correspond to a curved portion of the 3D glass, the upper mould is provided with a first heating block. The present disclosure further discloses a method thereof.

A method for surface preparation of composite substrates prior to adhesive bonding. A curable surface treatment layer containing blocked isocyanate compounds is applied onto a curable composite substrate, followed by co-curing. The surface treatment layer may be a resin layer without fibers or a removal peel ply composed of resin-impregnated fabric. After surface preparation, the composite substrate is provided with a chemically-active, bondable surface that can be adhesively bonded to another composite substrate to form a covalently-bonded structure.