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Resin composition for frp, frp sheet and molded product

A technology of resin composition and reinforcing sheet, which is applied in the field of resin composition, FRP sheet and molded products for FRP, can solve the problems of reducing the strength of molded products, etc., and achieve the effect of inhibiting whitening

Active Publication Date: 2021-03-02
YAMAHA CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] In the case where the aesthetic effect of the FRP molded product is not desired, the occurrence or possibility of whitening among fiber bundles and between individual fiber bundles, that is, separation among fiber bundles or between individual fiber bundles The occurrence or possibility of separation between the molded products may reduce the strength of the molded product and is therefore not preferred

Method used

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  • Resin composition for frp, frp sheet and molded product
  • Resin composition for frp, frp sheet and molded product
  • Resin composition for frp, frp sheet and molded product

Examples

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Embodiment approach

[0108] The above-described embodiments do not limit the constitutional features of the present invention. Therefore, based on the description in this specification and common technical knowledge, constituent elements of each part of the above-mentioned embodiments may be omitted, substituted or added, and such omission, substitution and addition shall be construed as falling within the scope of the present invention.

[0109] In addition to the above-mentioned components, modifiers for adjusting physical properties of the polymerized resin and / or for adjusting aesthetic appearance may be contained as additives in the resin composition for FRP as appropriate. Examples of the modifying agent include other various types of monomers, crosslinking agents, fillers, colorants, and the like. As an additive for dispersing the above particles, a monomer combined with, for example, the methyl methacrylate polymer may be used.

[0110] A molded product including the FRP sheet including a...

Embodiment

[0116] The present invention is described in detail below through examples, but the present invention should not be limitedly interpreted based on the description of the examples.

[0117] Resin composition for FRP

[0118] In order to verify the effect of the present invention, the resin compositions for FRP of Examples 1-12 and Comparative Examples 1-3 were prepared by using the respective components in the proportions shown in Table 1 (expressed in parts by mass).

[0119] As the methyl methacrylate, "Light Ester M" (Kyoeisha Chemical Co., Ltd.) was used. As the methyl methacrylate polymer, "SR8500" (Asahi Kasei Corporation) was used. As the dendrimer acrylate, "Viscoat #1000" (Osaka Organic Chemical Industry Ltd.) was used. As glycidyl methacrylate, "Light Ester G" (Kyoeisha Chemical Co., Ltd.) was used. As particles containing an acrylic resin as a main component in its surface layer, monomer "IBOA-MB302" (containing acrylic resin as a core) or "IBOA-MB602" (containing...

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Abstract

An object of the present invention is to provide a resin composition for FRP, an FRP sheet, and a molded product capable of suppressing whitening in and between fiber bundles. A resin composition for FRP according to one embodiment of the present invention is a resin composition for impregnating a fiber-made reinforcing sheet to form an FRP, and contains methyl methacrylate as a main component; a methyl acrylate polymer; a polymerization initiator; and at least one of dendrimer (meth)acrylate and glycidyl (meth)acrylate as a monomer. An FRP sheet according to another embodiment of the present invention includes a matrix and a fiber-made reinforcing sheet in the matrix. The matrix includes a hardened resin composition for FRP.

Description

technical field [0001] The present invention relates to a resin composition for FRP, an FRP sheet, and a molded product. Background technique [0002] Fiber-reinforced plastics (FRP) in sheet form obtained by impregnating woven cloth with resin have now found a wide variety of uses. Some types of such FRP sheets are used as interior materials that take advantage of the aesthetic effect created by the weave pattern of the woven cloth. In particular, a composite material including, for example, an interior panel for an automobile is used: an FRP sheet obtained by impregnating a woven cloth with resin; a resin base layer laminated on the FRP sheet; and as an FRP sheet The top layer of clear resin coating. [0003] Among FRPs, carbon fiber reinforced plastics (CFRP) obtained by impregnating carbon fiber woven cloth with resin are used as molded products for aircraft wings, wind wheels, tennis rackets, fishing rods, and the like. Specifically, a CFRP sheet obtained by impregna...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F2/00B64C1/00C08F2/44B60R13/02
CPCB64C1/00B60R13/02C08F2/00C08F2/44B29C70/48C08F265/04C08J2333/12C08J2433/08C08J2433/10B29C70/443B29C70/50C08J5/042Y02T50/40C08J5/243C08J5/249C08F220/325D06M15/263C08F20/18C08J2333/08C08J2333/10C08L101/005C08L2207/53C08F220/14
Inventor 中村康敬宗田和弘远藤和志滨田宽
Owner YAMAHA CORP
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