Abstract:
A reinforced polymer composite includes a polymer matrix and a strengthening agent. The strengthening agent includes highly crystalline cellulose nanocrystals (CNC) and a stabilizing agent. The crystalline cellulose nanocrystals (CNC) have dimensions of about 3 to 5 nm in width and about 100 to 300 nm in length and a density of about 1.6 g/cm3 and the stabilizing agent may be one of Boehmite nanoclay (Boe) and Cetyltrimethylammonium Bromide (CTAB) or a combination of both.
Abstract:
A fastening component is a molded article of a mixture in which microfibrillated cellulose fibers are dispersed in a thermoplastic resin, wherein the thermoplastic resin has a melting point of between 150 and 200° C., and wherein when the total mass % of the thermoplastic resin and the cellulose fibers is set to be 100 mass %, the mass % of the cellulose fibers included in the mixture is greater than 20 mass % and less than 60 mass %. When the total mass % of the thermoplastic resin and the cellulose fibers is set to be 100%, the mass % of the cellulose fibers included in the mixture is preferably equal to or greater than 30 mass % and equal to or less than 50 mass %.
Abstract:
A frame for a game racquet such as a tennis racquet is formed by helically winding a tow of filament material and thermoplastic material over an elongated mandrel to form a tube. The tube is positioned in a mold having the shape of a game racquet frame and auxiliary pieces for handle and yoke sections are added. This preform is heated to melt the thermoplastic while the interior of the tube is pressurized. The preform is then allowed to cool and harden to form the game racquet frame.
Abstract:
A molding material of the present disclosure includes cellulose fibers, a resin melting at 200° C. or lower, and polyurethane, the molding material having complex viscosity at 180° C. of 3000 Pa·s or more and 147000 Pa·s or less. The resin is preferably at least one selected from the group consisting of polypropylene and polylactic acid.
Abstract:
The present application relates to a supercritical fluid injection foaming polylactide foam material and a preparation method therefor. The method includes: first obtaining a surface-modified cellulose nanofiber aqueous solution; then melting and blending the cellulose nanofiber aqueous solution and a polylactide twice; passing same through extrusion, cooling under water, and granulation so as to obtain a polylactide/cellulose nanofiber composite material; then plasticizing and melting the polylactide/cellulose nanofiber composite material in a microporous foaming injection molding machine; uniformly mixing same with a supercritical fluid foaming agent in the injection molding machine; injecting same into a mold cavity; and subjecting the resultant to post-treatment so as to obtain a polylactide foam material. The polylactide foam material has a sandwich structure, in which two outer surface layers are solid layers that do not contain any foam, and the sandwiched layer is a foam layer having a cellular structure.
Abstract:
Provided herein is a process for forming a 3D object on a substrate using liquid inkjet compositions, machinery and methodologies, devoid of dry powders or UV-curable agents. The 3D object is digitally printed according to the additive approach, by inkjet printing a top layer over a base layer before curing the base layer, whereas a layer is formed as a gel, and the gelatinous object is thereafter cured.
Abstract:
A method for preparing a composite material that includes the steps of: (i) heat treating natural lignocellulosic fibers at a temperature of 130 to 320° C. for 2 minutes to 24 hours in an atmosphere oxygen-deficient in and in the presence of water vapor, and (ii) mixing the heat treated natural lignocellulosic fibers with at least one thermoplastic polymer in the molten state and whose melting point is less than or equal to 230° C. The method is useful for producing vehicle parts from a composite material having natural lignocellulosic fibers with reduced volatile organic compound odor emissions.
Abstract:
To provide a resin molding and a method for producing the same. A resin molding includes a plate-like substrate including reinforcing fibers and a first thermoplastic resin binding the reinforcing fibers to each other, and an extension part that is constituted of an injection-molded member and is extended from an end surface of the substrate along the plate face direction of the substrate. It is preferred that the reinforcing fibers be plant fibers, such as kenaf. It is preferred that the substrate and the extension part be connected flush to each other on, of the one surface and the other surface of the connection part of the substrate and the extension part, at least the side of one surface. Moreover, the extension part may further be provided with a plate-like part that constitutes an outer edge part of the resin molding and forms a shape involute toward the other surface. The method for producing a resin molding includes a shaping step of shaping the substrate and an extension part formation step of forming the extension part by injection-molding.
Abstract:
A process for producing a precursor material comprising the steps of, agitating a polymer material and a fibre material in a blending device comprising a blending means operating at a velocity sufficient to bring about an increase of the temperature to at least a temperature beyond the VI CAT softening point or within or beyond the melting temperature range of the polymer material. Thereafter, maintaining the velocity of the blending means and, when the specific motor power needed to maintain the velocity of the blending means increases by a predetermined amount or reaches a predetermined value, reducing the velocity. Repeating the previous step as necessary, until the velocity falls below a first threshold value to form an intermediate material. Finally, comminuting the formed intermediate material in a comminuting device comprising a comminuting means operating at a velocity allowing a decrease in temperature, until the temperature falls below a second threshold value.
Abstract:
The present invention relates to a cellulose-containing polypropylene composite resin which is environmentally friendly, and can reduce emission of carbon dioxide and contribute to improvement in fuel efficiency, based on reduced vehicle weight, and a vehicle thin film pillar trim including the same.