JPH02299528A - Construction material for fishing reel - Google Patents

Abstract

PURPOSE:To obtain a construction material for a fishing reel, having beautiful appearance and excellent dimensional stability, light-resistance and durability and giving agreeable feeling by graphitizing a carbon fiber grown in vapor phase and dispersing a specific amount of the graphitized product in a resin. CONSTITUTION:A carbon fiber grown in vapor phase is heat-treated at >=1500 deg.C (preferably 2100-3000 deg.C) to obtain a graphitized carbon fiber having a carbon purity of >=98.5% (preferably >=99.5%) and a fiber diameter of 0.01-5mum (preferably 0.01-0.5mum). The graphitized product is uniformly dispersed in a thermoplastic resin and/or a thermosetting resin in an amount of 5-50wt.% (preferably 15-35wt.%) based on the resin.

Description

[Detailed description of the invention] (Industrial application field) The present invention relates to fishing reel constituent materials.

(Prior Art) Conventionally, fishing reel constituent materials have generally been aluminum die-cast products. However, in recent years, resin composition molded products have rapidly become popular in response to market demands for weight reduction.
Most fishing reels have been replaced with resin compositions.

However, although such resin compositions are lighter than aluminum die-cast products, they are inferior in color, luster, luster, etc., and their surface hardness is low, so the outer surface is easily scratched and their weather resistance is poor. It was bad, discolored, deteriorated, and weakened, and what's more, it lacked a high-class appearance.

Therefore, in order to improve the texture and decorative appearance and protect the resin material, we applied metallic coating or used resin with aluminum powder, nickel powder, copper powder, magnesium powder, etc. dispersed in it. Reel construction materials are also available.

However, due to changes in the reel's use, environment, molding conditions, quality, demands, and other conditions, the strength cannot be achieved with resin alone, so reinforcing materials such as glass fiber and carbon fiber are added, and improvements in weather resistance are required. Therefore, fishing reel construction materials containing additives such as light stabilizers and heat stabilizers are also on the market.

However, the reel construction material, which is coated with metallic paint to give it a high-class image, has the following problems.

After molding, many steps are required: surface polishing, degreasing, painting, and drying, and the drying process involves high temperature treatment, which causes deformation and distortion, poor dimensional accuracy, and difficulty in maintaining high accuracy. In addition, since the coating is applied after molding, poor adhesion and hardness of the coating film are likely to occur, and in the case of complex shapes, it is difficult to coat uniformly, and coating defects are likely to occur, causing a lot of scratches and uneven coloring. In this way, the number of steps increases and the product cost increases.

In addition, in the case of reel constituent materials with a metallic feel that are made by adding metal powder (aluminum, nickel, copper, magnesium) to resin, the original mechanical strength of the reel may decrease due to cracks and breakage due to the metal powder. Therefore, large amounts of glass fiber and carbon fiber must be used to maintain strength. Although the weight was reduced by replacing the resin with resin, the combined use of metal powder, glass fiber, and carbon fiber not only increased the weight but also caused problems in terms of cost due to the large number of steps.

(Problems to be Solved by the Invention) An object of the present invention is to have a beautiful appearance, excellent tactile sensation,
Another object of the present invention is to provide a fishing reel constituent material that has excellent dimensional stability, light resistance, and durability.

(Means for Solving the Problems) The present invention provides, as a new carbon material, a graphitized product of vapor grown carbon fiber (hereinafter abbreviated as VGCF-G), which has a unique morphology, chemical and thermal stability, When we conducted various practical tests focusing on light resistance, we found that wood VGCF-G has excellent shape, agglomeration state, and dispersion state in other substances, and also has good dimensional stability and weather resistance, and does not deteriorate. They discovered that this is a constituent material for a reel that can maintain its strength for a long period of time without discoloring, and have arrived at the present invention.

That is, the present invention provides vccp with a fiber diameter of 0.01 to 5 μm.
This is a fishing reel constituent material characterized by being composed of a resin composition containing 5 to 50% by weight of -G.

VGCF-G of fishing reel constituent material obtained by the present invention
It is characterized by its black color and no metallic feel, giving it a high-class image.

In the present invention, VGCF-G is a fibrous carbonaceous material made by heating a carbon source such as a hydrocarbon in the presence of a catalyst and growing it in a vapor phase, that is, vapor-grown carbon fiber, which is subjected to graphitization heat treatment. It is a graphite material in the form of fibers obtained by pulverizing or cutting the fibers, and when the fibers are observed with an electron microscope, the core and the surrounding parts - looking like tree rings - can be seen. It has a unique shape consisting of carbon layers.

The VGCF-G used in the present invention has a diameter of 0.01 to
5 μm, preferably 0.01-2 μm, more preferably 0.01-1 μm, most preferably 0.01-0.5 μm
m, and the length of the fiber is not particularly limited. In general, 5
000 μm or less, but may be even shorter, 1000 μm or less
It may be μm, 100 μm, or 1.0 μm, or
Fibrous materials that are further crushed, cut, or crushed into shorter lengths,
Alternatively, granular or irregularly shaped materials can also be used.

The VGCF-G used in the present invention has a high carbon purity, generally 98.5% or more, particularly 99% or more, and most preferably 99.5% or more.

In addition, VGCF-G used in the present invention is a highly graphitic substance, and furthermore, in the structural analysis by X-ray analysis, the lattice constant Co in the graphite crystal structure is
is in the range of 6.88 or less, preferably 6.
86 or less, particularly preferably in the range of 6.80 to 6.70,
The most preferred range is 6.78 to 6.72.

VGCI used in the present invention? -G can be obtained by heat-treating vapor grown carbon fiber at high temperature, and the heat treatment temperature is 1500°C or higher, preferably 170°C or higher.
The temperature is 0°C or higher, particularly 2000°C or higher, and the most preferred range is 2100 to 3000°C.

In the present invention, resin means a thermoplastic resin and/or a thermosetting resin, and thermoplastic resins are preferred from the viewpoint of moldability and mass productivity. Thermoplastic resins are resins that do not exhibit plasticity at room temperature, but can be made plastic by heating to an appropriate temperature, such as polyethylene, polypropylene, polystyrene, poly-p-xylene, polyvinyl acetate, polyacrylate, Polymethacrylate-1・
, polyvinyl chloride, polyvinylidene chloride, fluorine-containing plastics, polyacrylonitrile, polyvinyl ether, polyvinyl ketone, polyether, polycarport, thermoplastic polyester, liquid crystal polyester, polyether ketone, polyphenylene sulfide, polyamide, diene plastic, polyurethane Examples include plastics, and preferred are polyamides and polycarbonates, with polyamide being particularly preferred.

A thermosetting resin is a resin that undergoes a crosslinking reaction when heated, changes to a three-dimensional structure, and finally hardens from a thermoplastic state to an insoluble or infusible state.For example, phenolic resin, furan resin, etc. resins, xylene formaldehyde resins, urea resins, melamine resins, aniline resins, alkyd resins, unsaturated polyester resins, epoxy resins, etc.

The fishing reel constituent material of the present invention has a composition ratio of VGCF-G of 5 to 50% by weight, preferably 10 to 40% by weight,
Particularly preferably 15 to 35% by weight.

If it is less than 5% by weight, the strength will be low, and if it is more than 50% by weight, the strength will increase, but it will take a long time to improve the dispersion state, which is disadvantageous in terms of cost, and the fluidity when melting the resin will decrease, making it difficult to mold. detract from sexuality.

The fishing reel constituent material of the present invention includes a crystal nucleating agent, a thickener,
Contains various known compounding agents such as flame retardants, diluents, stabilizers, antioxidants, lubricants, fillers, and additives to improve release from molds during molding. It's okay.

When manufacturing the fishing reel constituent material of the present invention, first the resin and the present VGCF-G are blended to ensure uniform dispersion.

The blending method may be tri-blending, wet blending, or impregnation blending. For the triblend, a stirrer such as a Henschel mixer is used, and the stirring time and rotation speed are arbitrarily set so that the resin powder and VGCF-G are mixed uniformly. At this time, it is effective to use a powder of the resin having a particle size of 1 mm or less. In addition, in wet blending, first, a liquid that does not dissolve the resin, such as water or alcohol, is placed in a stirrable container, and then VGCF-
Add G and stir to form a slurry. Next, a predetermined amount of a desired type of resin powder is added to this slurry and further stirred. This slurry is then filtered and dried. Furthermore, the impregnated blend is prepared by mixing and stirring the resin and VGCF-G, which have been separately dissolved in a solvent in advance, and then removing the solvent and drying. Banbury mixer and kneader are used for melting and kneading.
Kneading machines such as , roll mills and single screw extruders can be used.

By melt-kneading the pre-blended composition in this manner, a uniformly dispersed fishing reel constituent material can be obtained.

In this melt-kneading process, it is common to once form pellets and then use them for molding. The composition thus obtained can be molded into desired size legs, a part of the cover for the gear storage part, and a part to which the spool is attached by injection molding, and can be molded into a sheet or film by extrusion molding, calendar molding, etc. This intermediate product is then manufactured as a fishing reel component using a vacuum forming method or the like.

On the other hand, when using a thermosetting resin, the composition obtained by blending (VGCF-G + thermosetting resin) is made into a fishing reel constituent material of the desired size by compression molding, vacuum forming, etc. Manufactured.

The fishing reel constituent material manufactured in this manner becomes a member with a black color and a high-class image. In addition, since VGCF-G is needle-like and has a minute fiber diameter of 0.01 to 5 μm, PAN-G
Like resin composite materials such as CP glass fibers, it protrudes from the surface and has a rough surface, giving it a high-quality image without adversely affecting the texture or dirt. Furthermore, since no heat treatment is required after molding, the material is excellent in dimensional stability, light resistance, and durability.

(Examples) Hereinafter, the present invention will be explained in more detail with reference to Examples and Comparative Examples.

In addition, each characteristic value in Examples and Comparative Examples was measured according to the following method or JIS standard.

Tensile strength, JIS K-6810 Bending strength; JIS K-6810 Bending modulus, JIS K-6810 Light resistance, JIS K-7102 (Apparatus - FV type, irradiation method = B-1 method 48 hour irradiation) Surface roughness; Surface property measurement - Universal surface profile measuring instrument (SE-3
A) Friction characteristics; ■Amount of wear: The coefficient of dynamic friction was measured using the Suzumoto type wear test. 545C steel was used as the mating material, and all were operated continuously at a wear rate of 30 cm/sec and a load of 10 kg/cTfl without lubrication. The friction coefficient when the friction distance reached 10 km was determined, and the amount of wear per unit distance was determined.

(2) pv value: The friction surface was observed and measured 2 hours after keeping the friction speed constant at 30 cm/sec and varying the load. (The "limit Pv value" referred to here means that the member is under a certain load P
(kg/CTl1)), at a certain circumferential speed V (cm/
5ec) or more, it means the product of the limit P and V of the load that melts or seizes.

Appearance/Image: The decorative appearance was judged on a four-level scale by the naked eye in natural light near a north-facing window.

Example 1 Vapor-grown carbon fibers with a diameter of 0.05 to 0.1 μm (synthesized in a floating state by introducing trisacetylacetonate iron and benzene into a heating space at 1400°C) were grown at 2400°C.
Carbon content is 99% by heat treatment with argon gasification of C.
A graphitized material with a lattice constant of 6.74 was obtained, which was slightly crushed,
Made distributed operations easier. Further, the fiber length was observed using an electron microscope, and VGCF-G having a length of substantially 5.0 μm or more was obtained.

150g of this VGCF-G and polyamide resin (Leona, type 1300S (Asahi Kasei Corporation (J@ (product name))
) was cryogenically ground and adjusted to an average particle size of 30 μm85
0 g for 5 minutes using a Henschel mixer, and the resulting composition was pelletized using a PCM-30 type twin screw extruder manufactured by Ikegai Iron Works. After drying the pellets, the pellets were injection molded using a KC-20 injection molding machine manufactured by Kawaguchi Iron Works (Il) at an injection temperature of 290°C and a mold temperature of 85°C to create test pieces and measure various physical properties. .

The results are shown in Table-1.

Example 2 A test piece was prepared in the same manner as in Example 1, except that the blending amounts were changed to 250 g of VGCF-G and 750 g of polyamide injection, and the physical properties were evaluated. The results are shown in Table-1.

Example 3 A test piece was prepared in the same manner as in Example 1, except that the blending amounts were changed to 330 g of VGCF-G and 670 g of polyamide resin, and the physical properties were evaluated. The results are shown in Table-1.

Comparative Example 1 Polyamide resin (Leonatype 13 used in Example 1)
A test piece was prepared and evaluated using the method of Example 1. The results are shown in Table-1.

Comparative Example 2 Glass fiber (fiber diameter 9 μm, fiber length 3)
A test piece was prepared and evaluated using the method of Example 1 with a blending amount of 0g and 670g of polyamide resin. Table the results.
Shown in 1.

Comparative Example 3 Chopped strands of PAN-CF (manufactured by Asahi Kasei Carbon Fiber ■) obtained by firing acrylic fibers (
330g of 3mm cut), 670g of polyamide resin
A test piece was prepared and evaluated using the method of Example 1 with the amount of the following. The results are shown in Table-1.

Blank space below (effects of the invention) The reel component material of the present invention is easy to mold with synthetic resin, can be lightweight, and has a reinforcing effect that can be achieved by using VGCF-G alone without adding other reinforcing materials. There is no need for surface plating or addition of metal powder to improve light resistance and heat resistance, and it is advantageous in terms of cost and production, making it the ideal material for fishing reels.

Furthermore, fishing reels made using the constituent materials of the present invention have a beautiful appearance, give a sense of luxury, have a good feel, and have good dimensional stability, light resistance, and durability (discoloration, strength, etc.). is also excellent.

Patent applicant: Asahi Kasei Industries, Ltd. Agent: Patent Attorney Watanabe - Yu =16 one

Claims (1)

[Claims] A fishing reel constituent material comprising a resin composition containing 5 to 50% by weight of graphitized vapor grown carbon fibers having a fiber diameter of 0.01 to 5 μm.