Fiber sizing agent composition

A composition and fiber technology, which is applied in the field of fiber sizing agent, can solve the problems at the same time, and achieve the effects of quality improvement, excellent impregnation, and good bundling

Inactive Publication Date: 2014-05-14
SANYO CHEM IND LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the bundling property and the fiber opening property are originally opposite in nature, and it is difficult to have both at a high level.

Method used

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  • Fiber sizing agent composition

Examples

Experimental program
Comparison scheme
Effect test

manufacture example 1

[0096] Polyester resin (A2):

[0097] Bisphenol A ethylene oxide 2 mole adduct "Newpol BPE-20" (trade name) [manufactured by Sanyo Chemical Industry Co., Ltd.] 2,212 parts by weight, 996 parts by weight of terephthalic acid (alcohol / acid = 7 / 6 molar ratio) and 3 parts by weight of potassium oxalate titanate were reduced to 0.001 MPa in a glass reaction vessel at 230° C., and reacted for 15 hours while distilling off water. 1,500 parts by weight of polyoxyethylene glycol "PEG1500" (trade name) [manufactured by Sanyo Chemical Industry Co., Ltd.] was further added thereto, and the reaction was carried out at 180°C under normal pressure for 10 hours to obtain 4,490 parts of polyester resin (A2). parts by weight.

[0098] The viscosity at 35° C. of (A2) was 700 Pa·s.

[0099] The compositions of the sizing agent (A), the thixotropy imparting agent (B), and the surfactant (C) used in the following examples are as follows.

[0100] Sizing agent (A);

[0101] Bisphenol A type epox...

example 1

[0129] Put 600 parts by weight of epoxy resin (A1), 200 parts by weight of higher fatty acid amide (B1), and 200 parts by weight of surfactant (C1) into a universal mixer [manufactured by Sanying Works (Stock)], at 130 ° C After uniformly mixing for 30 minutes, the mixture was cooled to 50° C. to obtain a sizing agent composition (E1) for fibers. Next, 1,500 parts by weight of water was added dropwise to (E1) over 6 hours to obtain 2,500 parts by weight of an aqueous sizing agent solution (S-1) for fibers having a nonvolatile content concentration of 40% by weight. The viscosity at 35° C. of (A1) was 55 Pa·s.

example 2

[0131]Put 650 parts by weight of polyester resin (A2), 50 parts by weight of fatty acid ester (B2), 50 parts by weight of polyether resin (A4), and 200 parts by weight of surfactant (C1) into a universal mixer [Sanying Manufacturing Co., Ltd. (Stock) Manufacturing], uniformly mixed at 50°C for 30 minutes. Then, 1,450 parts by weight of water was added dropwise over 6 hours, and 100 parts by weight of polyurethane emulsion (A3) was added thereto to obtain an aqueous sizing agent for fibers with a non-volatile component concentration of 42% by weight (S-2 ) 2,500 parts by weight. The viscosity at 35 degreeC of (A) component [the non-volatile matter of the mixture of said (A2), (A4), (A3)] was 700 Pa*s.

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Abstract

Provided is a fiber sizing agent capable of imparting sufficient sizing properties and fiber spreading properties to reinforced fiber bundles for producing fiber-reinforced composite materials. A fiber sizing agent composition (E) which contains a fiber sizing agent (A), said fiber sizing agent having a viscosity at 35oC of 50-3,000 Pas, and has a thixotropic index of 3-15. As the sizing agent (A), an epoxy resin, a polyester rein, a polyurethane resin, a polyether resin and a vinyl ester resin are preferred.

Description

technical field [0001] The invention relates to a sizing agent for fibers. More specifically, it relates to a sizing agent for fibers used in fiber-reinforced composite materials. Background technique [0002] Various fibers and unsaturated polyester resins, phenol resins, epoxy resins, polypropylene resins and other matrix resins and composite materials of various fibers are widely used in construction materials, sports equipment, entertainment products and aircraft and other fields. Examples of fibers used in these composite materials include carbon fibers, glass fibers, aramid fibers, ceramic fibers, metal fibers, mineral fibers, and slag fibers. These fibers are treated with a sizing agent or the like to form fiber bundles (fiber bundles). [0003] The fiber bundle is subjected to a step of expanding the bundle width before being combined with the matrix resin. In this way, the impregnation property of matrix resin can be increased, and a thin and high-quality prepreg...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M15/55C08J5/06D06M13/188D06M13/224D06M13/402D06M15/327D06M15/507D06M15/53D06M15/564D06M101/36D06M101/40
CPCC08J5/06C08J2363/00C08J2363/02D06M13/188D06M13/224D06M13/2243D06M13/402D06M15/327D06M15/507D06M15/53D06M15/55D06M15/564D06M15/572D06M2101/36D06M2101/40D06M2200/40Y10T428/2918
Inventor 井上雅仁青木一树
Owner SANYO CHEM IND LTD
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