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公开(公告)号：WO1985004887A1
公开(公告)日：1985-11-07
申请号：PCT/US1985000612
申请日：1985-04-08
Applicant: HUGHES AIRCRAFT COMPANY
Inventor： HUGHES AIRCRAFT COMPANY , ROSSER, Robin, W. , TEDESCO, James, S. , SEIBOLD, Robert, W. , MILEWSKI, John, V.
IPC: C08K07/02
Abstract: A composite material comprising an ultra-high molecular weight polymer and fibers having lengths of about 0.05 inch (1270 micrometers). This composite is formed by first dispersing the fibers with particles of the polymer in an inert liquid carrier. The dispersion is drawn through a filter which collects the particles and fibers as an intermediate structure in which the fibers are oriented in a quasi-isotropic array and the particles are dispersed throughout this fiber network. The intermediate structure is removed from the filter, dried, compacted, and then compressed at an elevated temperature such that the polymer melts, while the fibers remain unmelted. Upon cooling, there is formed a composite comprising a continuous polymer matrix reinforced with the randomly oriented and intertwined fibers of relatively long length. This material can be formed into articles, such as piston rings or seals, to provide a self-lubricating structure having good wear resistance and creep resistance.
Abstract translation: 包含超高分子量聚合物和长度为约0.05英寸（1270微米）的纤维的复合材料。 该复合物通过首先将纤维与聚合物颗粒分散在惰性液体载体中而形成。 分散体通过过滤器吸收，该过滤器收集颗粒和纤维作为其中纤维以准各向同性阵列取向的中间结构，并且颗粒分散在整个纤维网络中。 将中间结构从过滤器中除去，干燥，压实，然后在升高的温度下压缩，使得聚合物熔融，同时纤维保持未熔化。 在冷却时，形成复合材料，该复合材料包括用相对较长长度的随机取向和相互缠绕的纤维增强的连续聚合物基体。 该材料可以形成诸如活塞环或密封件的制品，以提供具有良好的耐磨性和抗蠕变性的自润滑结构。
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公开(公告)号：EP0181396B1
公开(公告)日：1989-06-14
申请号：EP85903450.6
申请日：1985-04-08
Applicant: Hughes Aircraft Company
Inventor： ROSSER, Robin, W. , TEDESCO, James, S. , SEIBOLD, Robert, W. , MILEWSKI, John, V.
Abstract: A composite material comprising an ultra-high molecular weight polymer and fibers having lengths of about 0.05 inch (1270 micrometers). This composite is formed by first dispersing the fibers with particles of the polymer in an inert liquid carrier. The dispersion is drawn through a filter which collects the particles and fibers as an intermediate structure in which the fibers are oriented in a quasi-isotropic array and the particles are dispersed throughout this fiber network. The intermediate structure is removed from the filter, dried, compacted, and then compressed at an elevated temperature such that the polymer melts, while the fibers remain unmelted. Upon cooling, there is formed a composite comprising a continuous polymer matrix reinforced with the randomly oriented and intertwined fibers of relatively long length. This material can be formed into articles, such as piston rings or seals, to provide a self-lubricating structure having good wear resistance and creep resistance.
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公开(公告)号：EP0181396B2
公开(公告)日：1992-10-14
申请号：EP85903450.6
申请日：1985-04-08
Applicant: Hughes Aircraft Company
Inventor： ROSSER, Robin, W. , TEDESCO, James, S. , SEIBOLD, Robert, W. , MILEWSKI, John, V.
Abstract: A composite material comprising an ultra-high molecular weight polymer and fibers having lengths of about 0.05 inch (1270 micrometers). This composite is formed by first dispersing the fibers with particles of the polymer in an inert liquid carrier. The dispersion is drawn through a filter which collects the particles and fibers as an intermediate structure in which the fibers are oriented in a quasi-isotropic array and the particles are dispersed throughout this fiber network. The intermediate structure is removed from the filter, dried, compacted, and then compressed at an elevated temperature such that the polymer melts, while the fibers remain unmelted. Upon cooling, there is formed a composite comprising a continuous polymer matrix reinforced with the randomly oriented and intertwined fibers of relatively long length. This material can be formed into articles, such as piston rings or seals, to provide a self-lubricating structure having good wear resistance and creep resistance.
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公开(公告)号：EP0181396A1
公开(公告)日：1986-05-21
申请号：EP85903450.0
申请日：1985-04-08
Applicant: Hughes Aircraft Company
Inventor： ROSSER, Robin, W. , TEDESCO, James, S. , SEIBOLD, Robert, W. , MILEWSKI, John, V.
Abstract: Un matériau composite comprend un polymère de poids moléculaire ultra-élevé et des fibres ayant des longueurs de 0,05 pouces (1270 micromètres) environ. Ce matériau composite est formé en dispersant les fibres avec des particules du polymère dans un support liquide inerte. La dispersion est passée par un filtre qui recueille les particules et les fibres en tant que structure intermédiaire dans laquelle les fibres sont orientées suivant une matrice quasi-isotrope et les particules sont dispersées dans tout ce réseau fibreux. La structure intermédiaire est enlevée du filtre, séchée, compactée puis comprimée à une température élevée de sorte que le polymère fond tandis que les fibres ne fondent pas. Lors du refroidissement un composite se forme, lequel comprend une matrice polymère continue renforcée avec les fibres entrelacées et orientée au hasard et de longueur relativement importante. Ce matériau peut être transformé en articles tels que des segments de piston ou des joints, pour obtenir une structure autolubrifiante ayant une bonne résistance à l'usure et une bonne résistance au fluage.
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