A composite wearable includes a first toroid, substantially formed of a first material and having a recess, and a second toroid substantially formed of a second material. The recess is sized and shaped to at least partially receive the second toroid in a manually-removable friction fit such that the second toroid may be manually interchanged with another second toroid, or the first toroid may be manually interchanged with another first toroid, to adjust a configuration of the composite wearable. One of the toroids may be formed of a substantially rigid material and the other may be formed of a substantially flexible material. The recess may be at least partly defined by two inner sidewalls of the first toroid, each inner sidewall having a surface perpendicular to an axis of rotation of the first toroid. The second toroid may be configured to fully fill the recess leaving no air pocket.

The present invention provides a method for producing a molded article by pressing a composite material containing a resin composition and carbon fibers, wherein the resin composition contains a polyamide resin, a copper compound and potassium halide, and (1) the copper compound content is 0.1 parts by mass or more relative to 100 parts by mass of the polyamide resin.

Provided is a method for manufacturing a molded plastic products having copper-based compound particulates. The method includes the steps of: reacting copper sulfate with sulfuric salt, at a molar ratio of 1:1 in an aqueous solution at a temperature of 1080 C., thereby synthesizing copper sulfide particulates; forming a sheet comprising the copper sulfide particulates dispersed in a thermoplastic resin.

A conductive fastener system for connecting a composite structure to a support structure includes a composite structure hole that extends through the composite structure and shares a common axis with a support structure hole that extends at least partially through the support structure. A fastener comprising a shank having an outer surface passes through the composite structure hole and at least partially through the support structure hole and provides an annular space between the outer surface of the shank and the inner surface of the composite structure hole. The annular space is filled with a conductive paste that comprises conductive particles suspended in a bonding agent.

Molded plastic products having fine particles of copper-based compound with relatively low price, simple process and good economic feasibility and productivity, and method of manufacturing the products are provided. A chemical structure of the molded plastic products is Cu.sub.xM.sub.y, wherein M is any one selected from groups 15 to 17 of the periodic table, x/y is 0.5-1.5. Also the molded plastic products comprises thermoplastic resin which contains dispersed therein copper-based particles reacts copper sulfate with any one salt, selected from among sulfuric salt, hydrofluoric salt and hydrochloric salt, at a molar ratio of 1:1 in an aqueous solution at a temperature of 1080 C.

The invention relates to a PC resin material with a neutral filtering effect, and a preparation method therefor and the use thereof. The PC resin material with a neutral filtering effect provided in the present invention comprises polycarbonate, an antioxidant, a dispersing agent and an additive. The PC resin material with a neutral filtering effect provided in embodiments of the present invention has a flat transmittance curve at a spectral band of 400-1000 nm, a better neutral filtering effect and the advantages of easy machinability and low costs, and can be widely applied to the preparation of optical products.

A buffer structure, a preparation method for the buffer structure, and a display apparatus are provided. The buffer structure includes a substrate layer. A plurality of microporous structures are distributed in the substrate layer. The substrate layer is doped with electrically and thermally conductive materials. The electrically and thermally conductive material is distributed in the whole-layer structure of the substrate layer. The electrically and thermally conductive materials forms a heat conducting network structure in the substrate layer.

Provided is a method for manufacturing a molded plastic products having copper-based compound particulates. The method includes the steps of: reacting copper sulfate with sulfuric salt, at a molar ratio of 1:1 in an aqueous solution at a temperature of 1080 C., thereby synthesizing copper sulfide particulates; forming a sheet comprising the copper sulfide particulates dispersed in a thermoplastic resin.

A method of forming a composite article, wherein the method includes providing a composite formulation, the composite formulation including a polymer matrix and at least one additive distributed in the polymer matrix at a concentration of between 10% and 50%, by volume, the at least one additive having a molar percentage of carbon that is equal to or less than 90%, feeding the composite formulation to a printing head of an additive manufacturing device, heating the composite formulation to form a heated composite formulation, extruding the heated composite formulation through a nozzle in the printing head, and depositing the heated composite formulation onto a platform to form the composite article. Also provided is a composite article produced from a composite formulation having at least one additive distributed in a polymer matrix.

A masterbatch may be blended with virgin polymer to add desired color or other properties to the virgin polymer prior to further processing. Methods and processes for producing an antimicrobial and/or antiviral polymeric masterbatch that may be used to add antimicrobial, antiviral and/or antifungal properties to a virgin polymer without significantly degrading the properties of the virgin polymer. The masterbatch may be extruded into pellets or formed into other particles for subsequent blending with the virgin polymer to add antimicrobial and antiviral properties to the polymeric materials.

The method includes a heat treatment after compounding the base polymer with the antimicrobial, antiviral and/or antifungal are compounded together. The heat treatment comprises heating the masterbatch blend to a temperature between the glass transition temperature and the melting point of the base polymer.