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Resin composition for FRP, FRP sheet and molded body

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

Active Publication Date: 2018-09-04
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 body
  • Resin composition for FRP, FRP sheet and molded body
  • Resin composition for FRP, FRP sheet and molded body

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

The objective of the present invention is to provide: a resin composition for FRP, which is capable of suppressing whitening of fiber bundles; an FRP sheet; and a molded body. A resin composition forFRP according to the present invention is a resin composition that is impregnated into a reinforcing sheet, which is formed from fibers, for the formation of an FRP. This resin composition for FRP ischaracterized by containing: methyl methacrylate which serves as a main component; a methyl methacrylate polymer; a polymerization initiator; and dendrimer (meth)acrylate or glycidyl (meth) acrylate,which serves as a monomer. An FRP sheet according to the present invention is an FRP sheet which is provided with a matrix and a reinforcing sheet that is formed from fibers and is present within thematrix. This FRP sheet is characterized in that the matrix contains a cured body of the above-described 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 Applications(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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