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Reinforcing fiber bundle and carbon-fiber-reinforced thermoplastic resin molded article, and method for manufacturing reinforcing fiber bundle

A technology of resin molding and enhanced thermoplasticity, which is applied in the field of carbon fiber reinforced thermoplastic resin molding and reinforced fiber bundles to achieve the effect of improving adhesion

Active Publication Date: 2018-01-19
MITSUI CHEM INC +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in this method, under the condition that the amount of the surfactant in the emulsion is small, etc., there may be cases where foreign matter is generated in the emulsion during the preparation of the reinforcing fiber bundle, and the foreign matter is considered to be caused by aggregation of the modified PP. , Defects occur in the process of continuously applying acid-modified PP aqueous dispersion (sizing agent) to the fiber surface
In addition, due to the foreign matter, it may not be possible to provide sufficient adhesion between the fiber surface and the matrix resin.

Method used

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  • Reinforcing fiber bundle and carbon-fiber-reinforced thermoplastic resin molded article, and method for manufacturing reinforcing fiber bundle
  • Reinforcing fiber bundle and carbon-fiber-reinforced thermoplastic resin molded article, and method for manufacturing reinforcing fiber bundle
  • Reinforcing fiber bundle and carbon-fiber-reinforced thermoplastic resin molded article, and method for manufacturing reinforcing fiber bundle

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1～4、 comparative example 1

[0096] Examples 1-4, Comparative Example 1: Commercially available carbon fiber (manufactured by Formosa Plastics Corporation, trade name TC-36S (12K), [O / C]=0.22)

Embodiment 5 and 7、 comparative example 2、3 and 6

[0097] Examples 5 and 7, Comparative Examples 2, 3 and 6: Commercially available carbon fibers (manufactured by Formosa Plastics Corporation, trade name TC-35(12K), [O / C]=0.25)

Embodiment 8～10、 comparative example 7

[0098] Examples 8-10, Comparative Example 7: Commercially available carbon fibers (manufactured by Formosa Plastics Corporation, trade name TC-35R (12K), [O / C]=0.30)

[0099] [Material resins for emulsions]

[0100] (Maleic anhydride modified polypropylene)

[0101] Maleic anhydride-modified polypropylene prepared in Production Example 1 described later was used.

[0102] (Maleic anhydride modified polyethylene resin)

[0103] Maleic anhydride-modified polyethylene prepared in Production Example 2 described later was used.

[0104] (unmodified polypropylene resin)

[0105] The propylene-1-butene-ethylene copolymer prepared in Production Example 3 described later was used.

[0106] (unmodified polyethylene resin)

[0107] I used a density of 0.87g / cm 3 , MFR (230° C.) 5.4 g / 10 min ethylene-propylene random copolymer (abbreviated as EPR: TAFMER P manufactured by Mitsui Chemicals Co., Ltd., ethylene-derived skeleton content=82 mol %).

[0108] [Amine compound (B)]

[0109...

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Abstract

Provided are: a reinforcing fiber bundle comprising a carbon-fiber bundle treated with an emulsion including a modified polyolefin (A1) including at least a metal carboxylate bonded to a polymer chain, and 0.1-5000 moles of an amine compound (B) represented by general formula (1) per mole of carboxylate groups in the modified polyolefin (A1); a carbon-fiber-reinforced thermoplastic resin molded article which uses the reinforcing fiber bundle; and a method for manufacturing the reinforcing fiber bundle. (1): R-NH2 (In general formula (1), R represents a hydrogen atom or a C1-10 hydrocarbon group.)

Description

technical field [0001] The present invention relates to a reinforcing fiber bundle used as a reinforcing material for a thermoplastic resin, a carbon fiber reinforced thermoplastic resin molded article using the reinforcing fiber bundle, and a method for producing the reinforcing fiber bundle. Background technique [0002] Carbon fiber composite materials (CFRP) obtained by combining reinforcing fibers and plastics are remarkably excellent in specific strength and inelastic modulus, and thus have been put to practical use in various fields as lightweight structural materials, or are being tried for practical use. For example, CFRP using a thermosetting resin has been adopted as an aircraft body material. However, since a special molding method (autoclave molding method, RTM method) is required, productivity is not so high. Therefore, for example, the application of CFRP using a thermosetting resin to automobiles is limited to high-end vehicles. Therefore, recently, in orde...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M15/227C08K3/04C08K5/17C08L23/26D06M13/328D06M101/40
CPCC08K5/17C08L23/26D06M13/328D06M15/227C08J5/06C08J2323/12C08L23/10C08L23/14C08L2205/16C08J2423/26C08J2323/06C08J2323/14C08J5/042C08J2451/06C08K7/02C08L23/36C08K9/08C08L23/06C08L23/12C08J2323/20C08K3/28
Inventor 永井直伊崎健晴清水正树石川淳一菊地一明张怡娟颜凯宸林铭源
Owner MITSUI CHEM INC
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