Method for producing partially defibrated fiber bundle, and method for producing fiber-reinforced resin molding material

A fiber reinforced resin and manufacturing method technology, which is applied in the direction of conveying filamentous materials, thin material processing, filament generation, etc. beams and other issues, to achieve the effect of reducing material costs, reliability balance, and manufacturing costs

Active Publication Date: 2021-10-29
TORAY IND INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in this method, the peripheral speed of the roller and the conveying speed of the fiber bundle are basically the same speed synchronously, so it is impossible to control the lengths of the fiber-splitting treatment section and the non-fiber-splitting treatment section, etc., and it is difficult to obtain the optimal form of partial fiber splitting. fiber bundle

Method used

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  • Method for producing partially defibrated fiber bundle, and method for producing fiber-reinforced resin molding material
  • Method for producing partially defibrated fiber bundle, and method for producing fiber-reinforced resin molding material
  • Method for producing partially defibrated fiber bundle, and method for producing fiber-reinforced resin molding material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0153] Using a winder, the fiber bundle [A-1] is rewinded at a constant speed of 10 m / min, and the vibration broadens the roller is passed from the axial vibration of 5 Hz, and then the widening process is performed from 20 mm wide width control roller. This is thus widened to broaden the fiber bundle of 20 mm. For the resulting broadening fiber bundle, the fiber treatment mechanism obtained in the following manner is prepared: the iron plate having a thickness of 0.2 mm, a width of 3 mm, a height of 20 mm, is a width direction of the reinforcing fiber bundle. The equivalent interval is set in parallel with a 5 mm equal interval. The framing mechanism is intermitted relative to the broadening fiber bundle, and wounds to the wound barrel, thereby obtaining a portion of the fiber bundle.

[0154] At this time, the framing process mechanism repeatedly performs the following operation with respect to the open-wide fiber bundle of 10 m / min to repeatedly perform the following operat...

Embodiment 2

[0160] Using a winder, the fiber bundle [A-2] is unfolded at a constant speed of 10 m / min, and the widening process is performed from the vibration broadening roller along the axial vibration of 10 Hz, and then the roller is passed from a width of 60 mm. This is thus widened to broaden the fiber bundle of 60 mm. For the resulting broadening fiber bundle, a framed treatment mechanism obtained by means of an equal interval of 3.5 mm in the width direction of the reinforcing fiber bundle in the width direction of the reinforcing fiber bundle is used in the width direction of the reinforcing shape. In addition to this, the bundle is operated in the same manner as in Example 1.

[0161] At this time, for the obtained portion of the fiber bundle, the fiber bundle is divided into 17 parts in the width direction in the width direction, and at least one end portion of the at least one fiber treatment section has monofilament. The complex accumulation portion accumulated in the complex po...

Embodiment 3

[0163] Anti-fiber bundle of fiber bundle [A-2] is used in accordance with the constant speed of 10 m / min, which is repeated, i.e., insertion of the fiber treatment mechanism for 1 second, generating a framed processing section, divided in 1 second. The fiber treatment mechanism is unplugged, inserted again, in addition to, in the same manner as in Example 2, evaluated. A series of evaluations obtained are shown in Table 1.

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Abstract

Partially divided fiber bundles, which are partially divided fibers formed by alternately forming a splitting treatment section and a non-fiberization treatment section that are divided into a plurality of bundles along the length direction of a fiber bundle formed of a plurality of monofilaments A bundle, wherein the content of the non-fiber-dividing treatment section is 3% or more and 50% or less; and a method of manufacturing a partially-divided fiber bundle, wherein the fiber-dividing processing time t1 of the fiber-dividing mechanism is inserted, and the fiber-dividing mechanism The time t2 after pulling out until the fiber bundle is reinserted is a specific relationship; and a fiber-reinforced resin molding material using the partly divided fiber bundle and its manufacturing method. It is possible to provide an optimal partially-divided fiber bundle for producing a molding material, and to express fluidity and mechanical properties of a molded product in a well-balanced manner during molding of a fiber-reinforced resin molding material using the same.

Description

Technical field [0001] The present invention relates to a partial fiber bundle and a method of manufacturing the same, and more detailed, involving a low-cost wire beam (Largetow) that can be continuously concerted without envisioning the number of different filaments that do not enhance the filament. The fractionation can be formed to form a partial fiber bundle of the optimal form of the molded material used in the molding material used in the composite material, and the fiber reinforced resin molding material obtained by felting and impregnating the resin. And a method of manufacturing a series of steps until the fiber reinforced resin molded material is prepared. Background technique [0002] The molded material formed by the formation material formed by discontinuous reinforcing fibers (eg, carbon fibers) is used, and the molded material formed by the matrix resin is formed by heating, press molding. The technology is widely known. In such a molding material, for the molding...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D02J1/18B65H51/005
CPCB65H51/005B29B15/122D02J1/18D10B2101/12D04H1/732D01D11/02B29C70/18B29K2307/04B65H2701/314
Inventor 本桥哲也桥本贵史三好且洋河原好宏铃木保佐藤智麻
Owner TORAY IND INC
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