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Prepreg for manufacturing composite materials

A technology for prepregs and composite materials, used in the manufacture of fiber-reinforced composite materials. The field of manufacturing the prepregs can solve problems such as reducing compression mechanical properties, and achieve the effects of eliminating waste of consumables and reducing costs.

Inactive Publication Date: 2016-04-27
GURIT (UK) LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This "loss of shape" causes some out-of-plane aviness to the unidirectional fibers, which degrades the compressive mechanical properties, since the fibers will tend to deform earlier under compressive loads

Method used

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  • Prepreg for manufacturing composite materials
  • Prepreg for manufacturing composite materials
  • Prepreg for manufacturing composite materials

Examples

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Embodiment Construction

[0093] refer to figure 1 and figure 2 , shows the prepreg 2 according to the first embodiment of the present invention. For clarity of illustration, some dimensions in the figures are exaggerated and only a portion of the fibers are shown.

[0094] The prepreg 2 comprises layers of fibrous reinforcement 4 , shown as a plurality of bundles or towsor fibrebundles 5 , which are substantially completely impregnated with a matrix resin 6 . Complete impregnation is such that the opposite major surfaces 8 and 10 of the prepreg 2 comprise resin surfaces. Resin 6 is typically an epoxy functional resin comprising a latent curing agent as is known in the art. Other resins, especially thermosetting resins, may also be used. The fiber reinforcement 4 contains fibers 14 made of glass, carbon, aramid or similar material. The fibers 14 are unidirectional (UD) and are oriented with figure 1 and figure 2 common longitudinal direction perpendicular to the drawing plane. Preferably, the...

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Abstract

A prepreg for manufacturing a fibre-reinforced composite material, the prepreg comprising a body comprising a layer of fibrous reinforcement impregnated with a matrix resin material, and a powder coating layer of resin material on at least one major surface of the body and at least partly fused to the matrix resin material.

Description

technical field [0001] The present invention relates to a prepreg for manufacturing a fiber reinforced composite material, and a method of manufacturing the prepreg. The invention also relates to the use of the prepreg for the manufacture of fiber-reinforced composite materials. Background technique [0002] For many years, in the field of fibre-reinforced composites, it has been known to provide prepregs comprising layers of fibrous reinforcement impregnated with a structural polymer resin. The amount of structural polymer resin is carefully matched to the amount of fiber reinforcement. Thus, prepregs can be used in a method of forming fiber reinforced composites in which a multilayer stack of prepregs having a desired shape and configuration is provided and the The multi-layer laminate is heated so that the structural polymer resin melts and solidifies to form a single uniform resin matrix in which the fiber reinforcement is arranged in a desired fiber orientation. The ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J5/24B05D1/06B29C70/54B32B5/16B32B5/28B32B5/30C08J7/04C08J7/05
CPCB29C70/547C08J2363/00C08J2463/00B29C70/465B32B5/26B32B2255/02B32B2255/26B32B2260/023B32B2260/046B32B2262/101B32B2262/106B32B2307/52B32B2307/544B32B2603/00C08J5/24C08J7/0427C08J7/05B05D1/06B32B27/38B32B37/003B05D2201/02B05D2252/10B05D2504/00B32B2305/076B32B2264/0214B05D1/12B05D3/0263B05D3/12B32B37/1018
Inventor 保罗·斯潘塞凯文·史蒂文·卡迪
Owner GURIT (UK) LTD
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