Abstract: The present disclosure relates to a method for producing a nonwoven fabric that improves filtration performance when applied as a filter material. By adjusting the modification ratio of the Y-shaped cross-section of polyester filaments constituting the nonwoven fabric, when applied to a filter by increasing a specific surface area of the nonwoven fabric, it increases the collection amount of the materials to be filtered and maintains a low differential pressure, thus enabling long-term use.

Abstract: A cosmetically altered fiberglass piece having an outer layer of curable gel-coat, an intermediate layer of textile fabric having a graphical element depicted thereon, and an inner layer of composite. A resin or epoxy is used to bond the layers to form the cosmetically altered fiberglass piece. Introduction of resin or epoxy is performed through one of a manual application, a vacuum infusion, or light RTM.

Abstract: A three-dimensional object comprises stacked substrate layers infiltrated by a hardened material comprising engineered powder that is transformed into a substance that flows and subsequently hardens into the hardened material in a spatial pattern that infiltrates positive regions, and does not infiltrate negative regions, in the substrate layers. The powder may be emulsion aggregation powder, chemically-produced toner powder, or a combination. It may be a thermoplastic or thermosettable polymer and may include nylon, elastomers, polyolefins, polyethylene, polyether ether ketone, polyimide, polyetherimide, polyphenylene sulfide, polystyrene, polypropylene, polymethyl methacrylate, and polyaryletherketone, or a combination. The powder particles may have a pre-specified controlled shape and/or a non-homogenous composition. Surface treatments and/or additives may be used to control powder flow and charge distribution. Each substrate layer may be a sheet-like structure comprising fibers held together by binder.

Abstract: To provide a metal-carbon fiber reinforced plastic material (CFRP) composite that has excellent adhesion and adhesion durability at a member interface and a method of producing a metal-CFRP composite. The metal-CFRP composite according to the present invention includes: a metal member; a CFRP layer; and one or two layers of coating layers provided between the metal member and the CFRP layer. In the case where the coating layer consists of one layer, the coating layer is a coating layer containing an isocyanate group, and the matrix resin contains a phenoxy resin as a main component thereof, contains an epoxy group, and has bonds represented in (a structural formula 1) in the vicinity of an interface between the CFRP layer and the coating layer.

Abstract: A fluororesin composition containing a melt moldable fluororesin and a silica, wherein the fluororesin has 25 or more carbonyl group-containing functional groups per 106 main-chain carbon atoms; the silica is a spherical silica; and the fluororesin composition has a linear expansion coefficient of 100 ppm/° C. or lower. Also disclosed is a fluororesin sheet including the fluororesin composition, a laminate including a copper foil layer and a layer including the fluororesin composition and a substrate for circuits including a copper foil layer and a layer including the fluororesin composition.

Abstract: The purpose of the present invention is to provide a fiber-reinforced resin material having minimal directionality of strength as well as excellent productivity, a method and device for manufacturing a fiber-reinforced resin material whereby a molded article is obtained, and a device for inspecting a fiber bundle group. A method for manufacturing a sheet-shaped fiber-reinforced resin material in which a paste (P1) is impregnated between cut fiber bundles (CF), the method for manufacturing a fiber-reinforced resin material including a coating step applying a coating of a paste (P1) on a first sheet (S11) conveyed in a predetermined direction, a cutting step for cutting a long fiber bundle (CF) using a cutter (113A), a scattering step for dispersing the cut fiber bundles (CF) and scattering the cut fiber bundles (CF) on the paste (P1), and an impregnation step for pressing a fiber bundle group (F1) and the paste (P1) on the first sheet (S11) and impregnating the paste (P1) between the fiber bundles (CF).

Abstract: The disclosure discloses a preparation method and product of carbon fiber reinforced polymer composites with a designable characteristic structure. The method includes: (a) choosing carbon fabrics as raw material, where a predetermined number of the fabrics are selected to deposit the reinforcement phase; (b) coating all carbon fabrics with resin matrix, placing the fabrics layer by layer, where the carbon fabrics with the reinforcement phases are placed in a predetermined layer, meanwhile a micro power supply is placed in a setting layer during the stacking process, then a prefabricated product is obtained; (c) placing the prefabricated product in a vacuum bag then evacuating and sealing, hot pressing the sealed prefabricated product, finally the carbon fiber reinforced polymer composite product in the vacuum bag after hot pressing is successfully manufactured.

Abstract: An antibacterial twisted yarn including a first fiber and a second fiber having a shorter length than the first fiber and twisted together with the first fiber, wherein at least one of the first fiber and the second fiber includes a piezoelectric fiber that generates a charge by application of external energy.

Abstract: A polyphenylene ether resin composition includes (A) polyphenylene ether, and (B) a block copolymer including a butadiene block having a molar ratio of a 1,2-bonding structure to a 1,4-bonding structure of 80:20 to 100:0 and a styrene block. The number average molecular weight (Mn) of the component (A) may be 1,000 to 7,000, the weight ratio of the styrene block to the butadiene block in the component (B) may be 10:90 to 80:20, and the weight average molecular weight (Mw) of the component (B) may be 2,000 to 100,000.

Abstract: A plant fiber-containing composite resin molded article contains a base resin, plant fibers, and, a dispersant, in which each of the plant fibers contains an aroma component, the base resin is a crystalline resin, and in a case where a total content of the base resin, the plant fibers, and the dispersant is 100% by mass, a content of the plant fibers is more than or equal to 50% by mass and less than or equal to 90% by mass.

Abstract: A laminate assembly includes a matrix layer and elongated, continuous strips of a conductive alloy. The matrix layer has opposite first and second sides connected by opposite first and second edges. Each of the first and second edges extends from the first side of the matrix layer to the opposite second side of the matrix layer. The elongated, continuous strips of the conductive alloy are disposed in the matrix layer between the first and second sides of the matrix layer. The elongated continuous strips continuously extend through the matrix layer from the first edge to the opposite second edge.

Abstract: To provide a method for manufacturing a novel molded article using a commingled yarn and a composite material using a commingled yarn. The method for manufacturing a molded article, includes disposing a commingled yarn containing a continuous reinforcing fiber and a continuous thermoplastic resin fiber on a part of a surface of a prepreg, the prepreg containing continuous reinforcing fibers paralleling at least unidirectionally, and a thermosetting resin impregnated between the continuous reinforcing fibers, and heat-processing the prepreg with the commingled yarn.

Abstract: A method for reinforcing a concrete structure so as to have high substrate visibility and sufficient reinforcing performance. A fiber sheet for reinforcing a concrete structure, the sheet including: a framework in which a filament-based, multi-axial mesh sheet and a matrix resin are integrated, wherein the multi-axial mesh sheet has a base weight amount in a range of 500 g/m2 to 1000 g/m2.

Abstract: Some embodiments relate to non-woven composite materials, methods of making and uses thereof, including articles including the composite structures. More particularly, some embodiments relates to non-woven composite materials possessing desirable impact performance and penetration resistance.

Abstract: An intermediate base material is provided that is excellent in the conformity to three-dimensional shapes and that, when formed into a fiber reinforced plastic, develops good surface quality and high mechanical properties. According to one aspect, an incised prepreg is provided that has, in at least a partial region in a prepreg that contains unidirectionally oriented reinforcing fibers and a resin, a plurality of incisions that divide reinforcing fibers, wherein, in the case where a population is made up of the numbers of incisions contained in ten small circular regions of 10 mm in diameter randomly selected in the aforementioned region, a mean value for the population is 10 or greater and a coefficient of variation therefor is within 20%.

Abstract: Fibrous structures containing filaments and solid additives, and more particularly to fibrous structures containing filaments and solid additives wherein the fibrous structure has three or more regions that exhibit different characteristics and/or properties and methods for making same, are provided.

Abstract: The present invention is a resin substrate including an organic resin and a quartz glass cloth, where the organic resin has a dielectric loss tangent of 0.0002 to 0.0020 measured at 10 GHz and a 40 GHz/10 GHz ratio is 0.4 to 0.9, the quartz glass cloth has a dielectric loss tangent of 0.0001 to 0.0015 measured at 10 GHz and a 40 GHz/10 GHz ratio is 1.2 to 2.0, and the resin substrate has a dielectric loss tangent of 0.0001 to 0.0020 at 10 GHz and a 40 GHz/10 GHz ratio is 0.8 to 1.2. This provides a resin substrate having a low dielectric loss tangent in a high-frequency region and dielectric characteristics with little frequency dependence.

Abstract: An object is to mitigate plugging of spinneret hole, the plugging occurring with the passage of spinning time, even though cellulose acetate has a small titanium dioxide content or contains no titanium dioxide, and to prevent a reduction in pressure drop of the resulting cellulose acetate band. A cellulose acetate fiber having a titanium dioxide content of not greater than 0.05 wt. %; and a content of at least one type of metal oxide selected from the group consisting of Fe3O4, Fe2O3, MnO2, Cr2O3, Cr2CuO4, NiO, Sb2O3, and CoAl2O4 of not smaller than 0.05 wt. % and not greater than 1 wt. %.

Abstract: A dyeing and welding process may be configured to convert a substrate into a welded substrate having at least some color imparted thereto via a dye and/or coloring agent by applying a process solvent having a dye and/or coloring agent therein to the substrate, wherein the process solvent interrupts one or more intermolecular force between one or more component in the substrate. The substrate may be configured as a natural fiber, such as cellulose, hemicelluloses, and silk. The process solvent may include a binder, such as dissolved biopolymer (e.g., cellulose). After application of a process solvent comprised of a dye and/or coloring agent, the substrate may be exposed to a second application of a process solvent comprised of a binder, which second application may occur before or after a process temperature/pressure zone, process solvent recovery zone, and/or drying zone.

Abstract: A void filler material includes a ceramic rod and a fibrous overwrap. The void filler material may be used in a ceramic matrix composite. The method of making the ceramic matrix composite includes inserting the void filler material in voids of a preform and depositing a ceramic matrix on the preform and the void filler material using chemical vapor infiltration.