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Method of manufacturing polymer composite member by use of two or more resins

A composite material and polymer technology, applied in the field of resin infusion technology, can solve problems such as high material cost

Active Publication Date: 2014-03-05
VESTAS WIND SYST AS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

These additions often result in significantly higher material costs, and the choice of resin for a given product must therefore be a compromise between optimal material properties and cost

Method used

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  • Method of manufacturing polymer composite member by use of two or more resins
  • Method of manufacturing polymer composite member by use of two or more resins
  • Method of manufacturing polymer composite member by use of two or more resins

Examples

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Embodiment Construction

[0031] figure 1 A known mould arrangement 1 is shown schematically for the manufacture of fibre composite elements by using resin transfer moulding techniques. The mould arrangement 1 comprises a first mould part 2 and a second mould part 3 which are usually treated with a release agent and possibly also a coating before use. In this figure and the following figures, the first mould part 2 and the second mould part 3 are shown as rigid elements, but the second mould part 3 may also be flexible, such as by being fastened to the first mould part 3 by using a sealing tape Plastic sheet on mould part 2. A fibre layer 4, usually in the form of a mat, and possibly a release cloth (not shown) is placed on the first mould part 2, and the second mould part 3 is placed on top of it. Resin is introduced into the mould cavity 5 and into the fibers 4 via the resin inlet 6, also referred to as a resin infusion port. The preparation of the resin is not included in the figures, but is well...

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Abstract

The present invention relates to a method of manufacturing a polymer composite member by a resin infusion technique. The method comprises providing a mould cavity (5) wherein a reinforcement material (4) is arranged. The mould cavity has at least one first resin inlet for a first resin and at least one second resin inlet (6b) for a second resin, which first and second resins have different mechanical properties after moulding. The method further comprises concurrently leading the first resin into a first region (5a) of the mould cavity via the first inlet and leading the second resin into a second region (5b) of the mould cavity via the second inlet, and transferring the resins into the reinforcement material so that the resins at least partly merge in a third region of the mould cavity. For this application, the first resin is typically used for a root end of the wind turbine blade or part of wind turbine blade.

Description

technical field [0001] The present invention relates to a method of manufacturing a polymer composite element by using two or more resins, and in particular to a resin infusion technique in which multiple resins are injected simultaneously. Background technique [0002] Polymer composites such as fibre reinforced composites are used in the wind turbine industry, eg for wind turbine blades, and one possible manufacturing process is resin transfer moulding assisted by vacuum. Resin materials are, for example, epoxy, polyester or vinyl ester, and each material exists in a range of products including those with at least one additive added to improve things such as fracture toughness and stiffness characteristic product. These additives generally result in significantly higher material costs, and resin selection for a given product must thus be a compromise between optimal material properties and cost. [0003] Thus, an improved method of making polymer composite elements would...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29D99/00B29C70/48B29C70/34F01D5/00F03D1/06
CPCB29K2021/00B29K2063/00Y02E10/721B29L2031/08B29K2105/16B29K2067/06B29K2031/00B29K2105/167B29L2031/085B29C70/48F03D1/065B29C70/342B29C70/0035Y02E10/72Y02P70/50
Inventor M·D·哈格K·S·尼尔森
Owner VESTAS WIND SYST AS
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