A microfluidic chip includes a flow passage plate, a flat plate, and an annular seal. In the flow passage plate, a recess forming a flow passage for liquid and a communication hole communicating with the recess are formed. The flat plate is stacked on or under the flow passage plate to close the recess for defining the flow passage. In the flat plate, a communication through-hole communicating with the recess is formed. The annular seal is located on, or formed on, an outer surface of at least one of the flow passage plate and the flat plate, the annular seal surrounding at least one of the communication hole and the communication through-hole. The annular seal is made of an elastomer.

An object has a durable superhydrophic, self-cleaning, and icephobic coating includes a substrate and a layer disposed on the substrate, the layer resulting from coating with a formulation having an effective amount of hierarchical structuring micro/nanoparticles, liquid silane having one or more groups configured to graft to a hierarchical structuring micro/nanoparticle and at least another group that results in hydrophobicity. The hierarchical structuring micro/nanoparticles are dispersed in the liquid silane. Another effective amount of synthetic adhesive, selected from thermosetting binders, moisture curing adhesives or polymers that form a strong interaction with a surface, is in solution with a solvent. Upon curing, the layer has a contact angle greater than 90 and a sliding angle of less than 10 and, less than 5% of an area of the layer is removed in a Tape test.

A fill packaging machine includes a vertical sealing means for folding a packaging film at its central part and continuously forming a vertical sealed portion at its side edge part to shape into a cylinder, and a lateral sealing means for forming lateral sealed portions in a direction perpendicular to the longitudinal direction of the packaging film. An easy separable sealed portion is continuously formed in the side edge part of the packaging film by the first vertical sealed portion forming section, and a vertical sealed portion having a partial non-sealed portion of a bottle mouth type is formed on the easy separable sealed portion by the second vertical sealed portion forming section. The first vertical sealed portion forming section is a pair of heat sealing rolls or heat sealing plates, a surface of at least one of which is made from an elastic material softer than a metal.

A fill packaging machine includes a vertical sealing means for folding a packaging film at its central part and continuously forming a vertical sealed portion at its side edge part to shape into a cylinder, and a lateral sealing means for forming lateral sealed portions in a direction perpendicular to the longitudinal direction of the packaging film. An easy separable sealed portion is continuously formed in the side edge part of the packaging film by the first vertical sealed portion forming section, and a vertical sealed portion having a partial non-sealed portion of a bottle mouth type is formed on the easy separable sealed portion by the second vertical sealed portion forming section. The first vertical sealed portion forming section is a pair of heat sealing rolls or heat sealing plates, a surface of at least one of which is made from an elastic material softer than a metal.

A method for manufacturing a carbon fiber is provided which involves: (1) immersing a carbon fiber composite material (CFC) in an acidic aqueous solution to elute at least a part of a resin component of the CFC, to thereby obtain a substantially fibrous product; and (2) immersing the substantially fibrous product obtained in step (1) in an alkaline aqueous solution to elute at least a part of a resin component of the substantially fibrous product, to thereby obtain a fibrous product. A method for manufacturing a carbon fiber reinforced resin composition is provided which involves manufacturing a carbon fiber by the above method and manufacturing a carbon fiber reinforced resin composition using the resulting carbon fiber. Using these methods, it is possible to recover and recycle a carbon fiber from a carbon fiber composite material (CFC) at a low cost without deteriorating the carbon fiber.

The present invention relates to the technical field of composite materials, and in particular to a fiber composite material and a preparation method thereof. The preparation method comprises: A) uniformly dispersing nanoparticles in a solvent to obtain a nanoparticle dispersion; B) uniformly spray-coating the nanoparticle dispersion on a chopped fiber nonwoven fabric, and drying the fabric to obtain a nano-modified chopped fiber nonwoven fabric; C) intercalating the nano-modified chopped fiber nonwoven fabric between fiber preforms, and subjecting the obtained material and a resin matrix to composite molding by a molding process to obtain a fiber composite material. In the present invention, firstly nanoparticles are uniformly dispersed in a solvent to obtain a nanoparticle dispersion; secondly, the chopped fiber and the nanoparticles cooperate to construct a multi-scale interlaminar toughening phase, which significantly improves the interlaminar fracture toughness of the fiber composite material.

The device for welding thermoplastic parts includes a matrix for positioning the parts to be assembled, the matrix including an amagnetic insulating insert that defines joining zones in which the welds must be produced, a bladder defining a sealed volume and means for producing a partial vacuum in the sealed volume, and means for moving a magnetic induction head to near the joining zones and without making contact with the bladder. The welding process includes positioning at least one first part, then of placing metal inserts on areas of the first part corresponding to the joining zones that must be welded, and then positioning at least one second part. A bladder is put in place covering the parts and a partial vacuum is created in the volume defined by the bladder. The magnetic induction head is moved to produce the weld bead without contact while the partial vacuum is maintained.

The device for welding thermoplastic parts includes a matrix for positioning the parts to be assembled, the matrix including an amagnetic insulating insert that defines joining zones in which the welds must be produced, a bladder defining a sealed volume and means for producing a partial vacuum in the sealed volume, and means for moving a magnetic induction head to near the joining zones and without making contact with the bladder. The welding process includes positioning at least one first part, then of placing metal inserts on areas of the first part corresponding to the joining zones that must be welded, and then positioning at least one second part. A bladder is put in place covering the parts and a partial vacuum is created in the volume defined by the bladder. The magnetic induction head is moved to produce the weld bead without contact while the partial vacuum is maintained.

Nanocomposites comprising a polymer matrix having a controlled dispersion of nanoparticles at high concentrations are described. The nanoparticles can be materials that absorb radiation. Thus, the nanocomposites can be of use in radiation shielding. Also described are methods of preparing the nanocomposites and multifunctional structures, such as sandwich panels, comprising the nanocomposites.

Mould assembly for injection moulding a personalised hollow breast prosthesis, wherein the mould assembly comprises: a front mould being a female mould of a front side of a patients breast and comprising a first mould surface, a rear mould being a female mould of a patients mastectomized chest and comprising a second mould surface, a mould core comprising a mould core main body being a scaled positive mould of a combination of the patients breast and the patients mastectomized chest, wherein the mould core is smaller than the combination, a support configured to support the mould core main body in an assembled state of the mould assembly, wherein an injection opening is defined by any of the front mould, the rear mould, and the mould core, and wherein in the assembled state the mould core is located between the front mould and the rear mould in order for a mould core surface to be located at a distance from the first mould surface and the second mould surface, wherein in the assembled state an inner volume is defined by the front mould, the rear mould and mould core and is configured to be filled with an injection moulding material.