Reinforced thermoplastic-resin multilayer sheet material, process for producing the same, and method of forming molded thermoplastic-resin composite material

A thermoplastic resin and a technology for a manufacturing method are applied in the fields of thermoplastic resin reinforced sheets, thermoplastic resin multilayer reinforced sheets and their manufacture, and thermoplastic resin multilayer reinforced molded products, which can solve the problem of reduced mechanical properties, inability to strengthen in the thickness direction, Obstruction of reinforcing fibers, etc.

Inactive Publication Date: 2012-12-12
FUKUI PREFECTURE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At the stage of making the reinforcing fiber sheet, since a certain amount of filaments having a bonding function or a bonding fiber web or a porous binder layer are used, these binders are mixed with the thermoplastic resin that becomes the matrix, and There is a possibility of degradation of mechanical properties in composite molded products
In addition, based on stitching of filaments and fibers having a reinforcing effect, when heat and pressure molding multiaxially laminated reinforcing fiber sheets to obtain a composite material molded product, the thickness obtained by laminating the reinforcing fiber sheets and the thermoplastic resin matrix layer at an angle depends on the The impregnation of the thermoplastic resin into the reinforcing fiber bundle reduces the thinning, so the filaments and fibers having a reinforcing effect are slack, which may prevent the reinforcing fiber from becoming straight
In addition, the filaments and fibers in a relaxed state cannot be reinforced in the thickness direction of the composite material molded product, and instead exist as different raw materials, which cause the mechanical properties of the composite material molded product to decrease

Method used

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  • Reinforced thermoplastic-resin multilayer sheet material, process for producing the same, and method of forming molded thermoplastic-resin composite material
  • Reinforced thermoplastic-resin multilayer sheet material, process for producing the same, and method of forming molded thermoplastic-resin composite material
  • Reinforced thermoplastic-resin multilayer sheet material, process for producing the same, and method of forming molded thermoplastic-resin composite material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0274] A thermoplastic resin multilayer reinforced sheet was manufactured using the following materials.

[0275]

[0276] (Fiber bundles used in reinforcing fiber bundles)

[0277] Manufactured by Mitsubishi Rayon Corporation: TR50S-15K, fiber diameter about 7 μm, number of fibers 15,000 (resin used for thermoplastic resin sheets)

[0278] Manufactured by Mitsubishi Chemical Corporation: Nylon 6 resin film, film thickness 20 μm

[0279] (Fiber bundles used in thermoplastic resin fiber bundles for integration)

[0280] Manufactured by Toray Co., Ltd.: Nylon 6 multi-fiber rayon, 77dtex-24filaments

[0281]

[0282] (1) 16 reinforcing fiber bundles TR50S-15K were placed at intervals of 20 mm, and each reinforcing fiber bundle was opened to a width of 20 mm by a method of simultaneously air-fiber-opening a plurality of them (see Patent Document 9).

[0283] (2) Each fiber-opened reinforcing fiber to have a width of 20 mm was vibrated in the width direction to prepare a rei...

Embodiment 2

[0290] A plurality of narrow-width thermoplastic resin reinforced sheets were obtained from the thermoplastic resin reinforced sheets obtained in (1) to (4) of Example 1, and a thermoplastic resin multilayer reinforced sheet was produced.

[0291]

[0292] The reinforcing fiber bundles, the thermoplastic resin sheet, and the thermoplastic resin fiber bundles for integration are also the same as in Example 1.

[0293]

[0294] (1) Through (1) to (4) of Example 1, a thermoplastic resin reinforced sheet having a width of 320 mm was obtained.

[0295] (2) pass Figure 16 The production apparatus shown continuously cut the obtained thermoplastic resin reinforced sheet with a width of 10 mm to obtain 32 narrow-width thermoplastic resin reinforced sheets. At this time, as the cutting blade and the cutting method, a circular blade-shaped cutting blade that freely rotates in response to the movement of the thermoplastic resin reinforced sheet is provided, and the thermoplastic res...

Embodiment 3

[0300] A plurality of thermoplastic resin reinforced sheets obtained in (1) to (4) of Example 1 were laminated and then heated and pressed to manufacture a thermoplastic resin multilayer reinforced sheet in which the layers were thermally welded and integrated. Sheet.

[0301]

[0302] The reinforcing fiber bundle and the thermoplastic resin sheet are also the same as in Example 1.

[0303]

[0304] (1) Through (1) to (4) of Example 1, a thermoplastic resin reinforced sheet having a width of 320 mm was obtained.

[0305] (2) pass Figure 14 The manufacturing apparatus shown laminates the obtained thermoplastic resin reinforced sheets in the 45-degree direction, 0-degree direction, -45-degree direction, and 90-degree direction to form a laminated sheet with a width of 320 mm. Figure 18 The manufacturing apparatus shown performs heating and pressing to obtain a thermoplastic resin multilayer reinforced sheet. As a manufacturing device, heating rollers form a single conne...

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Abstract

The present invention provides a high-quality multilayer thermoplastic-resin-reinforced sheet material having excellent mechanical properties and drapeability in which a thermoplastic resin excellent in recycling efficiency and shock resistance is used as a matrix; a method for efficiently producing the multilayer thermoplastic-resin-reinforced sheet material in a short time; and a thermoplastic-resin multilayer reinforced molding formed of the multilayer thermoplastic-resin-reinforced sheet material, in which the high quality and the mechanical properties are maintained. A multilayer thermoplastic-resin-reinforced sheet material (11) is formed by stacking thermoplastic-resin-reinforced sheet materials (21A) to (21D) each formed of a reinforcing-fiber sheet material (31), consisting of a plurality of reinforcing fibers (31f) arranged in a predetermined direction in a sheet-like structure, and a thermoplastic-resin sheet material (41) joined to a surface of the reinforcing-fiber sheet material (31), and stitching them together with an integration thermoplastic-resin fiber tow (51) composed of the same material as the thermoplastic-resin sheet material (41). The reinforcing-fiber sheet materials (31) are stacked such that their reinforcing directions are multiaxial.

Description

[0001] This application is the international application number PCT / JP2007 / 072520, the national phase application number 200780022166.1, the application date is November 21, 2007, and the title of the invention is "thermoplastic resin multilayer reinforced sheet and its manufacturing method, and thermoplastic resin composite moldings The divisional application of the application of the "shaping method". technical field [0002] The present invention relates to a sheet suitable for manufacturing a three-dimensional thermoplastic resin composite molded product and a molding method. Specifically, it relates to adhering a thermoplastic resin to a reinforcing fiber sheet formed into a sheet by aligning reinforcing fibers such as carbon fibers. Thermoplastic resin reinforced sheet of material sheet laminated and integrated thermoplastic resin multilayer reinforced sheet, method for producing same, and molding thermoplastic resin composite material molded article using molding materia...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B27/12B32B37/06B32B37/10B29C70/20B29C70/34
CPCB32B5/12B29C70/504B29C2043/3644B29C43/146B29C43/46B29C43/20B29C43/36B29C43/30B29C70/465B29K2105/0854B32B5/26B29C33/10B29K2101/12B29C70/543B29C43/203B29C43/305B29C70/086B29C70/202B29C70/24B32B27/12Y10T156/1095Y10T428/187Y10T428/2495Y10T428/2481Y10T428/24124Y10T156/10Y10T428/24033Y10T428/24851Y10T428/249941Y10T442/643Y10T428/249942Y10T442/3472Y10T442/30B29C33/565B29C43/02
Inventor 川边和正
Owner FUKUI PREFECTURE
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