Abstract:
The plurality of pieces of low density cellular material, such as foam plastics, form a core panel having opposite side surfaces and with adjacent pieces having opposing edge surfaces extending between the side surfaces. Sheets of flexible material, such as veils or mats or scrim, are adhesively attached to the side surfaces, and portions of one sheet extend between the opposing adjacent edge surfaces for limiting flexing of the panel. The pieces may be tapered, and portions of the one sheet may project between the edge surfaces either partially or fully to form double wall webs. The webs may have flanges adhesively attached to the other sheet on the opposite side. One sheet may also be stretchable in areas not adhesively attached to the pieces to provide for curving the panel from a planar position maintained by the sheet on the opposite side.
Abstract:
A composite laminate (55) for use on an external part of an aerospace vehicle has improved ultraviolet resistance and resistance to microcracking from thermal cycling. The laminate (55) comprises a nanoreinforcement film (10), a support veil (20), and a composite layer (50). The laminate (5) also can have a lightning strike protection layer (40) and an external paint and primer (35). The nanoreinforcement film (10) can comprise carbon nanomaterial and a polymer resin, and the composite layer (50) has one or more layers of a reinforcement and a polymer resin. The carbon nanomaterial can be carbon nanofibers, and the nanoreinforcement film (10) can have an areal weight of less than about 100 g/m2. The carbon nanomaterial can also comprise carbon nanofibers and carbon nanotubes.
Abstract translation:在航空航天车辆的外部使用的复合层压板(55)具有改善的耐紫外线性和耐热循环的微裂纹性。 层压板(55)包括纳米增强膜(10),支撑面纱(20)和复合层(50)。 层压板(5)还可以具有防雷层(40)和外部涂料和底漆(35)。 纳米增强膜(10)可以包括碳纳米材料和聚合物树脂,并且复合层(50)具有一层或多层增强材料和聚合物树脂。 碳纳米材料可以是碳纳米纤维,并且纳米增强膜(10)的面积重量可以小于约100g / m 2。 碳纳米材料还可以包含碳纳米纤维和碳纳米管。
Abstract:
Included are elastic laminate articles that include multiple layers. This includes one stretch fabric comprising about 50% to 100% elastic fibers by weight of the fabric, including fabrics that include 100% elastic fibers and at least one adhesive.
Abstract:
A device for producing a composite sandwich structure (1), wherein the sandwich structure comprises at least a first and second face sheets (2, 3) of a fibrous reinforcing material sandwiching between them a sheet of a core material (4), the device comprising a connecting fibre inserting apparatus for connecting the first face sheet (1), the core material (4) and the second face sheet (3) by means of connecting fibres (6). The connecting fibre inserting device comprises at least one needle bar extending transversally in the moving direction of the sandwich structure (1) and provided to exert a reciprocating movement in height direction of the sandwich structure (1). The needle bar comprises a plurality of spaced apart needles (11), arranged to face the first face sheet (2), and provided to take along a length of connecting fibre yarn (6) when reciprocating in and out of the sandwich structure (1) thereby forming a loop at the lower surface of the second face sheet (3). The connecting fibre inserting device also comprises at least one looper (12) arranged on a side facing the second face sheet (3) provided to co-operate with at least one needle (11) for seizing the loop of connecting fibre (6), and wherein the movement of the looper (12) is driven by a driving device which is provided to drive the movement of the looper (12) independently of the needle bar.
Abstract:
Provided is a carbon fiber prepreg comprising carbon fiber bundles containing numerous carbon fiber single yarns and a matrix resin impregnated in the carbon fiber bundles, the value of the coefficient of variation, displayed as a percentage, of the number of the carbon fiber single yarns contained per unit area being 10% or less, wherein in each unit area, the width and the depth from the surface of the carbon fiber prepreg in the cutting plane when the carbon fiber prepreg is cut at right angles to the array direction (direction of the fiber axis) of the carbon fiber bundles are 100 µm and 30 µm respectively. Also provided is a carbon fiber prepreg comprising carbon fiber bundles containing numerous carbon fiber single yarns and a matrix resin impregnated in the carbon fiber bundles, wherein a projected area of a carbon fiber single yarn which has a fiber orientation angle of 0° ± 3° or more is 2% or less of the projected area of all carbon fiber single yarns.
Abstract:
In a method of manufacturing a drip absorbent sheet, the drip absorbent sheet having: a plurality of holes through which drip, which is juice released from foodstuff, can pass; a porous resin film containing 1 to 3% by mass of a surface-active agent, and a liquid absorbent layer laminated with the porous resin film. The method includes at least: a laminating step of laminating the porous resin film and the liquid absorbent layer; a cutting step of cutting a laminate obtained in the laminating step into a product of a predetermined product dimension; and a product stacking step of stacking the product in sheets after the cutting step into stacks of a plurality of sheets. In at least one of the cutting step and the product stacking step, a contactless charge neutralization process is performed with respect to a front surface side of the porous resin film.
Abstract:
A non-woven textile may be formed from a plurality of thermoplastic polymer filaments. The non-woven textile may have a first region and a second region, with the filaments of the first region being fused to a greater degree than the filaments of the second region. A variety of products, including apparel (e.g., shirts, pants, footwear), may incorporate the non-woven textile. In some of these products, the non-woven textile may be joined with another textile element to form a seam. More particularly, an edge area of the non- woven textile may be heatbonded with an edge area of the other textile element at the seam. In other products, the non-woven textile may be joined with another component, whether a textile or a non-textile.
Abstract:
Provided is a novel composite sheet, including a substrate and a foamed layer which is provided on at least one surface side of the substrate, at a low cost in an environment-friendly manner, in which the composite sheet includes a foamed layer having a uniform fine-cell structure, the average pore diameter of each of spherical cells of the foamed layer can be precisely controlled to a small one, the control range of the density of the foamed layer is wide, the control range of the thickness of the foamed layer is wide, and the composite sheet can express an excellent mechanical strength and is preferably excellent in toughness and heat resistance. The composite sheet includes a substrate; and a foamed layer which is provided on at least one surface side of the substrate, in which: the foamed layer has spherical cells, an average pore diameter of each of the spherical cells being less than 30 µm; and the foamed layer has a density of 0.1 g/cm 3 to 0.9 g/cm 3 .
Abstract translation:提供了一种新颖的复合片材,其包括基材和发泡层,其以环境友好的方式以低成本设置在基材的至少一个表面侧,其中复合片材包括具有均匀的发泡层 细胞结构,发泡层的球形细胞的平均孔径可以精确地控制在较小的范围内,发泡层的密度的控制范围宽,发泡层的厚度的控制范围 宽,并且复合片材能够表现出优异的机械强度,并且优选韧性和耐热性优异。 复合片包括基片; 以及发泡层,其设置在所述基板的至少一个表面侧,其中:所述发泡层具有球形单元,每个球形单元的平均孔径小于30μm; 发泡层的密度为0.1g / cm 3〜0.9g / cm 3。