Abstract:
A ballistic composite comprises multiple layers of a fabric having unidirectional ballistic resistant yarns in at least two layers and a resin layer between each pair of such multiple layers adhered to the ballistic resistant yarns but not encapsulation the same and not penetrating the layer of fabric. The ballistic yarn layers are at 90°±5° with respect to each other and the ballistic resistant yarns are stabilized by being woven in a second fabric. The second fabric is formed of yarns having a substantially lower tenacity and tensile modulus than the ballistic resistant yarn. The ballistic resistant yarns have a tenacity of at least about 15 grams per denier and a modulus of at least about 40 grams per denier. The resin in the resin layer has a modulus of at least about 7000 psi.
Abstract:
A ballistic composite comprises multiple layers of a fabric having unidirectional ballistic resistant yarns in at least two layers and a resin layer between each pair of such multiple layers adhered to the ballistic resistant yarns but not encapsulation the same and not penetrating the layer of fabric. The ballistic yarn layers are at 90~ .plusmn. 5~ with respect to each other and the ballistic resistant yarns are stabilized by being woven i n a second fabric. The second fabric is formed of yarns having a substantially lower tenacity and tensile modulus than the ballistic resistant yarn. The ballistic resistant yarns have a tenacity of at least about 15 grams per denier and a modulus of at least about 40 grams per denier. The resin in the resin layer has a modulus of at least about 7000 psi.
Abstract:
A laminated fabric for penetration resistant e.g. ballistic applications. The fabric comprising a fabric of penetration resistant yarns having a linear density in the range from 100 to 700 dtex, said yarns being woven in a satin weave. The woven fabric is coated on at least one-side with a polymeric material in a micro-lamination process, the coating material being from 0.5 to 20%
Abstract:
A ballistic resistant article is provided along with a process to manufacture the article. The ballistic resistant articles includes at least one consolidated composite, wherein the at least one consolidated composite includes at least two layers, each layer includes a network of fibers, the fibers have a strength of at least 800 mN/tex (1100 MPa) according to ASTM D 7269-07, the fibers in each layer are impregnated with a matrix material, and each consolidated composite has a front surface and a rear surface. In the ballistic article, at least the front surface of each consolidated composite is powder coated with partly molten and solidified powder particles to form a powder coated surface.
Abstract:
A multi-layer ballistic woven fabric, including an upper woven layer having upper warp yarns and upper weft yarns that are interwoven together to form the upper woven layer. The multi-layer ballistic woven fabric also includes a lower woven layer having lower warp yarns and lower weft yarns that are interwoven together, and a plurality of securing yarns, each securing yarn interwoven with at least some of the upper yarns and some of the lower yarns so as to secure the upper and lower woven layers together. At least one of the securing yarns is woven underneath a first lower weft yarn, then above a second upper weft yarn adjacent the first lower weft yarn, then underneath a third lower weft yarn adjacent the second upper weft yarn and then above a fourth upper weft yarn adjacent the third lower weft yarn. The multi-layer ballistic woven fabric is formed by interweaving the securing yarns with the warp yarns and weft yarns as the upper woven layer and lower woven layer are made.
Abstract:
A penetration-resistant article is provided comprising two or more layers of woven fabric. The layers of woven fabric each comprise a first series of fibers aligned in a first direction and a second series of fibers interwoven with the first series of fibers and aligned in a second direction perpendicular to the first direction. Two or more layers of woven fabric are loosely stacked together so as to permit relative slippage therebetween and are rotationally offset by an offset angle selected so as to inhibit mechanical interference between opposing adjacent surfaces of the woven fabric layers during slippage therebetween. Also provided are methods for assembling penetration-resistant articles.
Abstract:
Se proporcionan un artículo balístico resistente y un método para su fabricación; el artículo comprende al menos un compuesto consolidado, en donde el al menos un compuesto consolidado comprende una capa A y una capa B enlazadas entre sí, cada capa A y B exhibe una primera superficie, una segunda superficie opuesta a la primera superficie, y una sección transversal que se extiende desde la primera superficie a la segunda superficie, cada capa A y cada capa B comprende una red de fibras que tiene una fuerza de al menos 800 mN/tex (1100 MPa) de conformidad con ASTM D 7269-07, y las fibras en cada capa A y B se impregnan con un material de matriz, caracterizado en que el material de matriz se distribuye a lo largo de la sección transversal de cada capa en la forma de un gradiente de concentración, en donde la concentración inicia con un valor máximo sobre la primera superficie, de modo que la primera superficie es rica en material de matriz, disminuye a lo largo de la sección transversal y alcanza un valor mínimo sobre la segunda superficie, de modo que la segunda superficie es pobre en material de matriz, y el material de matriz comprende una mezcla de 75 a 95 % en peso de policloropeno, y de 5 a 25 % en peso de un copolímero aleatorio de cloruro de vinilo y un éster acrílico basándose en el peso de la mezcla.
Abstract:
artigo à prova de bala, e, processo para fabricar o mesmo um artigo à prova de bala é apresentado compreendendo uma pluralidade de camadas fibrosas, cada uma das referidas camadas compreendendo uma rede de fibras, em que as fibras têm uma resistência de pelo menos 800 mn/tex (1100 mpa), de acordo com a norma astm d 7269-07 e um material de matriz, em que o material de matriz compreende uma mistura compreendendo pelo menos uma resina acrílica de autorreticulação e/ou pelo menos uma resina acrílica reticulável, e pelo menos um agente de pegajosidade. em comparação com um artigo da mesma construção, mas com um material de matriz sem agente de pegajosidade, o artigo de acordo com a invenção compreende uma maior adesão entre as camadas fibrosas, tanto no estado não envelhecido quanto envelhecido e uma captação de água inferior após imersão em água e o artigo passa pelo teste de imersão com gasolina. o artigo compreendendo adicionalmente uma placa de metal ou cerâmica apresenta mínima ou mesmo nenhuma deslaminação das camadas fibrosas após ataque balístico, enquanto que um artigo da mesma construção, mas com um material de matriz sem agente de pegajosidade exibe deslaminação interna das camadas fibrosas.
Abstract:
painel antibalístico a invenção refere-se a um painel antibalístico. o painel compreende pelo menos uma primeira pilha e uma segunda pilha, em que a primeira pilha tem uma pluralidade de primeiros laminados feitos de um primeiro tipo de fibra e a segunda pilha tem uma pluralidade de segundos laminados feitos de um segundo tipo de fibra, em que o primeiro tipo de fibra tem um módulo de tração na faixa de 40 ? 85 gpa, medido de acordo com astm d7269 e o segundo éipo de fibra tem um módulo de tração na faixa de 86 - 140 gpa, medido de acordo com astm d7269.
Abstract:
A ballistic resistant article is provided along with a process to manufacture the article. The ballistic resistant articles includes at least one consolidated composite, wherein the at least one consolidated composite includes at least two layers, each layer includes a network of fibers, the fibers have a strength of at least 800 mN/tex (1100 MPa) according to ASTM D 7269-07, the fibers in each layer are impregnated with a matrix material, and each consolidated composite has a front surface and a rear surface. In the ballistic article, at least the front surface of each consolidated composite is powder coated with partly molten and solidified powder particles to form a powder coated surface.