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Thermalplastic resin multi-layer reinforced sheet, production method thereof and forming method for thermalplastic resin composite material forming article

A technology of thermoplastic resin and manufacturing method, applied in the field of thermoplastic resin multilayer reinforced sheet and its manufacture, and molding of thermoplastic resin composite material molding, capable of solving problems such as reduction of mechanical properties, hindrance of reinforcing fibers, reduction of mechanical properties, etc.

Active Publication Date: 2009-06-24
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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  • Thermalplastic resin multi-layer reinforced sheet, production method thereof and forming method for thermalplastic resin composite material forming article
  • Thermalplastic resin multi-layer reinforced sheet, production method thereof and forming method for thermalplastic resin composite material forming article
  • Thermalplastic resin multi-layer reinforced sheet, production method thereof and forming method for thermalplastic resin composite material forming article

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0273] A thermoplastic resin multilayer reinforced sheet was manufactured using the following materials.

[0274] 〈Materials used〉

[0275] (Fiber bundles used in reinforcing fiber bundles)

[0276]Manufactured by Mitsubishi Rayon Corporation: TR50S-15K, fiber diameter about 7 μm, number of fibers 15,000 (resin used in thermoplastic resin sheets)

[0277] Manufactured by Mitsubishi Chemical Corporation: Nylon 6 resin film, film thickness 20 μm

[0278] (Fiber bundles used in thermoplastic resin fiber bundles for integration)

[0279] Manufactured by Toray Co., Ltd.: Nylon 6 multi-fiber rayon, 77dtex—24filaments

[0280] 〈Manufacturing process〉

[0281] (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 according to the method of simultaneously air-fiber-opening a plurality of them (see Patent Document 9).

[0282] (2) Each fiber-opened reinforcing fiber to have a width of 20 mm was...

Embodiment 2

[0289] 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.

[0290] 〈Materials used〉

[0291] The reinforcing fiber bundles, the thermoplastic resin sheet, and the thermoplastic resin fiber bundles for integration are also the same as in Example 1.

[0292] 〈Manufacturing process〉

[0293] (1) Through (1) to (4) of Example 1, a thermoplastic resin reinforced sheet having a width of 320 mm was obtained.

[0294] (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...

Embodiment 3

[0299] 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.

[0300] 〈Materials used〉

[0301] The reinforcing fiber bundle and the thermoplastic resin sheet are also the same as in Example 1.

[0302] 〈Manufacturing process〉

[0303] (1) Through (1) to (4) of Example 1, a thermoplastic resin reinforced sheet having a width of 320 mm was obtained.

[0304] (2) pass Figure 14 The production apparatus shown laminates the obtained thermoplastic resin reinforced sheets in the direction of 45 degrees, 0 degrees, -45 degrees and 90 degrees to form a laminated sheet with a width of 320mm, and passes through Figure 18 The manufacturing apparatus shown performs heating and pressing to obtain a thermoplastic resin multilayer reinforced sheet. As a manufacturing device, heati...

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Abstract

A reinforced thermoplastic-resin multilayer sheet material which includes , as a matrix, a thermoplastic resin excellent in suitability for recycling and impact resistance and which has high quality and is excellent in mechani cal properties and draping properties. Also provided are: a process for effi ciently producing the reinforced thermoplastic-resin multilayer sheet materi al in a short time; and a reinforced thermoplastic-resin multilayer molding obtained by forming the reinforced thermoplastic-resin multilayer sheet mate rial and retaining the high quality and mechanical properties. The reinforce d thermoplastic-resin multilayer sheet material (11) comprises reinforcing t hermoplastic-resin sheet materials (21A) to (21D) superposed together which each is composed of a reinforcing fibrous sheet material (31) obtained by pa ralleling reinforcing fibers (31f) in a given direction and forming them int o a sheet and a thermoplastic-resin sheet material (41) adherent to one side of the reinforcing fibrous sheet material (31), the sheet materials (21A) t o (21D) having been united together by stitching with a thermoplastic-resin fiber bundle (51) for uniting which is made of the same material as the ther moplastic-resin sheet materials (41). The reinforcing fibrous sheet material s (31) have been superposed so that their reinforcing directions are multi-a xial.

Description

technical field [0001] 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 material composed of reinforcing fiber material and thermoplastic resin material forming method. Background technique [0002] Fiber-reinforced composite material is a combination of fiber material and matrix material. It is lightweight, highly rigid, and multifunctional. It is used in a wide range of fields such as aerospace, transportation, civil engineering, and sports equipment. in the field. Currently, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B5/12B29C43/02B29C43/36B29C43/52B29C43/56B32B27/12
CPCB29C33/10B29C43/20B29C43/30B29C43/36B29C43/46B29C70/465B29C70/504B29C70/543B29C2043/3644B29K2101/12B29K2105/0854B32B5/12B32B5/26B29C43/203B29C43/305B29C70/086B29C70/202B29C70/24B32B27/12B29C43/146Y10T156/1095Y10T428/187Y10T428/2495Y10T428/2481Y10T428/24124Y10T156/10Y10T428/24033Y10T428/24851Y10T428/249941Y10T442/643Y10T428/249942Y10T442/3472Y10T442/30B29C33/565B29C43/02
Inventor 川边和正
Owner FUKUI PREFECTURE
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