摘要:
Articles of wear having one or more textiles that include a low processing temperature polymeric composition and a high processing temperature polymeric composition, and methods of manufacturing the same are disclosed. The low processing temperature polymeric composition and the high processing temperature polymeric composition can be selectively incorporated into a textile to provide one or more structural properties and/or other advantageous properties to the article. The textile can be thermoformed to impart such structural and/or other advantageous properties to the article of wear. This abstract is intended as a scanning tool for purposes of searching in the particular art and is not intended to be limiting of the present disclosure.
摘要:
A process for forming a moldable, uncured nonwoven composite containing forming a structural nonwoven layer, at least partially impregnating the structural nonwoven layer with an uncured, water-based thermosetting resin having a cure temperature of at least about 160° C., and at least partially drying the uncured, wet nonwoven composite such that the temperature at the inner plane is less than about 130° C. forming an moldable, uncured composite. The structural nonwoven layer contains a plurality of bi-component binder fibers and a plurality of reinforcing fibers, the bi-component fibers containing a core and a sheath. The core contains a polymer having a melting temperature of at least about 180° C. and the sheath contains a polymer having a melting temperature less than about 180 ° C. A process for forming a molded, cured composite containing forming a structural nonwoven layer and a molded cured nonwoven composite are also disclosed.
摘要:
Bone tissue biomimetic materials, biomimetic constructs that can be formed with the materials, and methods for forming the materials and constructs are described. The bone tissue biomimetic materials include electrospun nanofibers formed of polymers that are conjugated with peptides that include acidic amino acid residues. The materials can incorporate high levels of mineralization so as to provide mechanical strength and promote osteogenesis and/or osteoconductivity on/in the bone tissue biomimetic materials. The materials and constructs can be utilized in forming tissue engineered structures for in vitro and in vivo use. Macroscopic bone tissue biomimetic scaffolds formed from the materials can be seeded with osteogenic cells and utilized to develop bone graft materials that can exhibit strength and osteoconductivity similar to the native bone and that exhibit uniform distribution of nutrients in the scaffolds.
摘要:
A housing shell for electrical measuring, controlling and communication devices, in particular the lower housing part of a cellphone, has very great flexural and torsional rigidity in spite of an extremely small wall thickness if it is formed as a part created by a forming operation from the planar blank of a thermoplastically impregnated long-fibered multi-layered mat. Fine-membered functional elements of likewise thermoplastic material are then molded onto the housing shell in an injection mold.
摘要:
The present invention relates to a board using crosslinked polylactic acid and a method for preparing same, and more specifically, to a board using the crosslinked polylactic acid which has superior processing properties during the preparation process and superior water-resistant properties after processing, by using a composition comprising the crosslinked polylactic acid and wood fiber, and to a method for preparing the same.
摘要:
A method for manufacturing non-sewing three-dimensional fabric capable of polychrome printing comprises steps of setting a mold seat formed by a stack of layers of mold powder, reversely pressing a surface layer thereof by a substantial fabric to form a plurality of low-lying grooves corresponding to the patterns, sintering the mold seat under high temperature for getting a ventilative mold plate, and placing and positioning the mold plate in a vacuum suction groove, whereby a half-melted plastic fabric plastered on a top surface of the ventilative mold plate is tightly pressed on a surface of the low-lying grooves by a vacuum suction force and plastic-formed into an initial material with corresponding reverse and three-dimensional patterns.
摘要:
A method for fabricating and processing a flexible substrate is provided, which mainly includes: providing at least one first medium of a flexible material; providing at least one second medium of a thermoplastic plastic material; binding the first medium and the second medium to form a sheet; and curing the sheet into a plate of a predetermined shape by hot pressing. In addition, the plate is subjected to secondary processing to form a secondary composite medium of another predetermined shape. Thereby, a predetermined shape of the plate is achieved by primary processing, and is in turn changed by secondary processing.
摘要:
A method and system for aligning nanotubes within an extensible structure such as a yarn or non-woven sheet. The method includes providing an extensible structure having non-aligned nanotubes, adding a chemical mixture to the extensible structure so as to wet the extensible structure, and stretching the extensible structure so as to substantially align the nanotubes within the extensible structure. The system can include opposing rollers around which an extensible structure may be wrapped, mechanisms to rotate the rollers independently or away from one another as they rotate to stretch the extensible structure, and a reservoir from which a chemical mixture may be dispensed to wet the extensible structure to help in the stretching process.
摘要:
A method and apparatus for Z-direction reinforcement of composite laminates is disclosed. Discrete fibers are pulled through a fiber composite preform in the Z-direction by barbed needles.
摘要:
Improved microlayer structures and methods typically employing at least 4 stacked layers of polymers (e.g., including alternating layers of components A and B), such as that obtained by coextrusion. The layers each have a thickness of less than about 50 microns. One optional approach involves forming an intermediate form that includes at least one elongated member made from the plurality of layers, from which a shaped composite article may be made.