摘要:
A panel (1) is described having a layered structure comprising: - a first outer layer (2), - an intermediate layer (3), and - a second outer layer (4). The second outer layer (4) has a buckling stress lower than a buckling stress of the first outer layer (2), and the first outer layer (2) and the second outer layer (4) each have a compression failure stress higher than the buckling stress of the second outer layer (4).
摘要:
The present invention relates to a flame resistant thermal liner comprising a nonwoven sheet comprising nanofibers of a synthetic polymer having an limiting oxygen index of at least 21, a mean flow pore of 10 micrometers or less, a thickness air permeability of 25 to 6000 cubic feet per min - micrometers (12 to 2880 cubic meters per square meter per min - micrometers), and an average thickness T 1 : and a thermally stable flame resistant fabric attached to an outer surface of the nonwoven sheet, the fabric having an average thickness T 2 ; a surface of the thermally stable fabric being in contact with a surface of the nonwoven sheet; wherein T 1 and T 2 are selected such that the ratio of T 1 to T 2 is less than 0.75. The invention also relates to a flame resistant composite fabric comprising the flame resistant thermal liner and a garment comprising this flame resistant composite fabric.
摘要:
A flexible, wrappable multilayered heat shield is provided. The heat shield includes a reflective metal outermost layer, an innermost layer of high temperature yarn capable of withstanding temperatures up to about 650 degrees °C continuously, and about 750 °C intermittently, and an intermediate layer of nonwoven material capable of withstanding temperatures up to about 550 °C continuously sandwiched between the outermost and innermost layers.
摘要:
The present invention provides articles and methods related to insulation panels made from aerogels, and specifically polyimide based aerogels. Such insulation panels have a wide variety of applications, including specifically in aerospace applications.
摘要:
The present invention provides articles and methods related to insulation panels made from aerogels, and specifically polyimide based aerogels. Such insulation panels have a wide variety of applications, including specifically in aerospace applications.
摘要:
In various embodiments, an improved flexible-composite material is described that comprises at least one scrim constructed from at least two unidirectional tape layers bonded together and at least one woven fabric, non-woven fabric, or membrane bonded to the scrim. In various embodiments, the unidirectional tape layers comprise a plurality of parallel fiber bundles comprising monofilaments within an adhesive resin. In various embodiments, the fiber bundles are separated by gaps that can be filled in by adhesive or non-adhesive resin.
摘要:
A composite laminate having improved impact strength, which comprises: a multilayer carbon fiber fabric, wherein said carbon fiber fabric may be a bidirectional weave or a unidirectional weave; a multilayer nonwoven mat, wherein said nonwoven mat is made of para-aramid; and cured epoxy resin, wherein said cured epoxy resin is made of the epoxy resin system designed for impregnation that immersed in the carbon fiber fabric layer and at least one layer of the nonwoven mat is sandwiched between two layers of carbon fiber fabric layer and both outer surface layers of the composite laminate are carbon fiber fabric layer.