JPWO2019009325A1 - Sizing agent and method for producing the same, and fiber and fiber tow - Google Patents
Sizing agent and method for producing the same, and fiber and fiber tow Download PDFInfo
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- 239000003795 chemical substances by application Substances 0.000 title claims abstract description 89
- 238000004513 sizing Methods 0.000 title claims abstract description 89
- 239000000835 fiber Substances 0.000 title claims abstract description 55
- 238000004519 manufacturing process Methods 0.000 title claims description 12
- XMWRBQBLMFGWIX-UHFFFAOYSA-N C60 fullerene Chemical compound C12=C3C(C4=C56)=C7C8=C5C5=C9C%10=C6C6=C4C1=C1C4=C6C6=C%10C%10=C9C9=C%11C5=C8C5=C8C7=C3C3=C7C2=C1C1=C2C4=C6C4=C%10C6=C9C9=C%11C5=C5C8=C3C3=C7C1=C1C2=C4C6=C2C9=C5C3=C12 XMWRBQBLMFGWIX-UHFFFAOYSA-N 0.000 claims abstract description 44
- 229910003472 fullerene Inorganic materials 0.000 claims abstract description 43
- 239000002994 raw material Substances 0.000 claims description 23
- 239000011347 resin Substances 0.000 claims description 19
- 229920005989 resin Polymers 0.000 claims description 19
- 238000000034 method Methods 0.000 claims description 11
- 238000002156 mixing Methods 0.000 claims description 9
- 239000011259 mixed solution Substances 0.000 claims description 8
- 239000000203 mixture Substances 0.000 claims description 8
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 6
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 6
- 239000004917 carbon fiber Substances 0.000 claims description 6
- 239000003365 glass fiber Substances 0.000 claims description 6
- 229920002994 synthetic fiber Polymers 0.000 claims description 6
- 239000012209 synthetic fiber Substances 0.000 claims description 6
- 238000001914 filtration Methods 0.000 claims description 5
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 5
- 239000000243 solution Substances 0.000 claims description 5
- 150000002148 esters Chemical class 0.000 claims description 4
- 239000007788 liquid Substances 0.000 claims description 4
- 239000004925 Acrylic resin Substances 0.000 claims description 3
- 229920000178 Acrylic resin Polymers 0.000 claims description 3
- 150000001408 amides Chemical class 0.000 claims description 3
- 239000003822 epoxy resin Substances 0.000 claims description 3
- 229920000647 polyepoxide Polymers 0.000 claims description 3
- 229920002803 thermoplastic polyurethane Polymers 0.000 claims description 3
- 238000007865 diluting Methods 0.000 claims description 2
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 9
- 238000005259 measurement Methods 0.000 description 4
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 239000002904 solvent Substances 0.000 description 3
- -1 C 60 and C 70 Chemical compound 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 238000013329 compounding Methods 0.000 description 2
- 238000010790 dilution Methods 0.000 description 2
- 239000012895 dilution Substances 0.000 description 2
- 238000004090 dissolution Methods 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 239000002105 nanoparticle Substances 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000011088 calibration curve Methods 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000004925 denaturation Methods 0.000 description 1
- 230000036425 denaturation Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000003113 dilution method Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000004128 high performance liquid chromatography Methods 0.000 description 1
- 230000031700 light absorption Effects 0.000 description 1
- 239000012263 liquid product Substances 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 239000002082 metal nanoparticle Substances 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
- D06M11/73—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with carbon or compounds thereof
- D06M11/74—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with carbon or compounds thereof with carbon or graphite; with carbides; with graphitic acids or their salts
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
- Chemical Or Physical Treatment Of Fibers (AREA)
Abstract
繊維のサイジング剤において、フラーレンが溶解している。Fullerene is dissolved in the fiber sizing agent.
Description
本発明は、フラーレンを含むサイジング剤およびその製造方法、並びに、前記サイジング剤で被覆された繊維及び前記サイジング剤を含む繊維トウに関する。 The present invention relates to a sizing agent containing fullerene, a method for producing the same, a fiber coated with the sizing agent, and a fiber tow containing the sizing agent.
繊維は、製造と加工工程において糸切れや毛羽を発生しやすく、また複合材料を構成するマトリックス樹脂に対する接着性も悪く、物性面にも悪影響を与える。このような繊維に集束性やマトリックス樹脂に対する接着性を付与し、加工性や複合材料として使用する際の物性を改良する目的で、サイジング剤が使われている。 Fibers are prone to yarn breakage and fluffing in the manufacturing and processing steps, have poor adhesion to the matrix resin constituting the composite material, and adversely affect physical properties. A sizing agent is used for the purpose of imparting bundling properties and adhesion to a matrix resin to such fibers, and improving the physical properties when used as a composite material.
特許文献１には、溶媒中に遷移金属ナノ粒子が分散液と繊維サイジング剤との混合物（繊維サイジング剤配合剤）が開示されている。さらに、前記繊維サイジング剤配合剤を繊維へ塗布し、溶媒を除去する方法が開示されている。 Patent Document 1 discloses a mixture of a dispersion metal nanoparticle in a solvent and a fiber sizing agent (fiber sizing agent compounding agent). Furthermore, the method of apply | coating the said fiber sizing agent compounding agent to a fiber and removing a solvent is disclosed.
前記特許文献１の方法では、ナノ粒子は分散しているだけで繊維サイジング剤に溶解している訳ではなく、ナノ粒子による繊維の摩耗を防ぐための滑り性の向上という点では限定的であった。 The method of Patent Document 1 is not limited in that the nanoparticles are merely dispersed but dissolved in the fiber sizing agent, and is limited in terms of improving the slipperiness to prevent the fibers from being worn by the nanoparticles. It was.
本発明は、上記事情に鑑みてなされたものであって、繊維の表面特性（滑り性）を向上させるサイジング剤を提供することを目的とする。 This invention is made | formed in view of the said situation, Comprising: It aims at providing the sizing agent which improves the surface characteristic (slidability) of a fiber.
すなわち、本発明は以下の発明を含む。 That is, the present invention includes the following inventions.
［１］ フラーレンが溶解している繊維のサイジング剤。 [1] A sizing agent for fibers in which fullerene is dissolved.
［２］ 前記フラーレンが、前記サイジング剤中に０．００１〜１質量％含まれる前項［１］に記載のサイジング剤。 [2] The sizing agent according to [1], wherein the fullerene is contained in the sizing agent in an amount of 0.001 to 1% by mass.
［３］ 前記のフラーレンが、Ｃ６０、Ｃ７０及びＣ７０より高次フラーレンを含む混合物である前項［１］または［２］に記載のサイジング剤。[3] The sizing agent according to [1] or [2] above, wherein the fullerene is a mixture containing higher order fullerenes than C 60 , C 70 and C 70 .
［４］ 前記サイジング剤は、樹脂を含む前項［１］〜［３］のいずれかに記載のサイジング剤。 [4] The sizing agent according to any one of [1] to [3], wherein the sizing agent includes a resin.
［５］ 前記樹脂が、ウレタン樹脂、アクリル樹脂、エポキシ樹脂、アミド樹脂、エステル樹脂およびエーテル樹脂から選ばれる少なくとも一種である前項［４］に記載のサイジング剤。 [5] The sizing agent according to [4], wherein the resin is at least one selected from a urethane resin, an acrylic resin, an epoxy resin, an amide resin, an ester resin, and an ether resin.
［６］ 前項［１］〜［５］のいずれかに記載のサイジング剤の製造方法であって、フラーレンを含まない原料サイジング剤とフラーレンとを混合し混合液を得る工程と、前記混合液から不溶成分を除去する工程とを有するサイジング剤の製造方法。 [6] A method for producing a sizing agent according to any one of [1] to [5], wherein a raw material sizing agent not containing fullerene and a fullerene are mixed to obtain a mixed solution, and the mixed solution is used. A method for producing a sizing agent comprising a step of removing insoluble components.
［７］ 前記不溶成分の除去が、前記混合液をろ過することにより行われる前項［６］に記載のサイジング剤の製造方法。 [7] The method for producing a sizing agent according to [6], wherein the insoluble component is removed by filtering the mixed solution.
［８］ さらに、不溶成分を除去後の溶液を、原料サイジング剤で希釈する工程を有する前項［６］または［７］に記載のサイジング剤の製造方法。 [8] The method for producing a sizing agent according to [6] or [7] above, further comprising a step of diluting the solution after removing insoluble components with a raw material sizing agent.
［９］ 前項［１］〜［５］のいずれかに記載のサイジング剤で被覆された繊維。 [9] A fiber coated with the sizing agent according to any one of [1] to [5].
［１０］ 前記繊維が、ガラス繊維、合成繊維または炭素繊維である前項［９］に記載の繊維。 [10] The fiber according to [9], wherein the fiber is glass fiber, synthetic fiber, or carbon fiber.
［１１］ 前項［１］〜［５］のいずれかに記載のサイジング剤を含む繊維トウ。 [11] A fiber tow containing the sizing agent according to any one of [1] to [5].
［１２］ 前記繊維トウを構成する繊維が、ガラス繊維、合成繊維または炭素繊維である前項［１１］に記載の繊維トウ。 [12] The fiber tow according to [11], wherein the fiber constituting the fiber tow is glass fiber, synthetic fiber, or carbon fiber.
本発明のサイジング剤を用いることにより、繊維の滑り性が改善される。 By using the sizing agent of the present invention, the slipperiness of the fibers is improved.
以下、本発明の実施形態に係る繊維のサイジング剤及びその製造方法について説明する。 Hereinafter, a fiber sizing agent and a method for producing the same according to an embodiment of the present invention will be described.
本実施形態のサイジング剤には、フラーレンが溶解している。本実施形態のサイジング剤は、フラーレンを含まない原料サイジング剤とフラーレンとを混合し、得られた混合液から不溶成分を除去することにより得られる。
＜原料サイジング剤＞
原料サイジング剤としては、一般に市販されているサイジング剤（通常、溶液又はエマルジョンの様な液状品として、そのまま繊維に適用できる）を用いることができるが、前述の効果を得やすくするためにフラーレンが０．００１質量％以上、好ましくは０．０１質量％以上溶解するサイジング剤が好ましい。原料サイジング剤としては、例えば、樹脂を含むサイジング剤が挙げられ、より具体的には、ウレタン樹脂、アクリル樹脂、エポキシ樹脂、アミド樹脂、エステル樹脂およびエーテル樹脂から選ばれる少なくとも１種を主成分とするサイジング剤が挙げられ、好ましくはエステル樹脂を主成分とするサイジング剤が挙げられる。Fullerene is dissolved in the sizing agent of this embodiment. The sizing agent of this embodiment is obtained by mixing a raw material sizing agent not containing fullerene and fullerene, and removing insoluble components from the obtained mixed solution.
<Raw material sizing agent>
As a raw material sizing agent, a commercially available sizing agent (usually, a liquid product such as a solution or an emulsion can be directly applied to fibers) can be used. A sizing agent that dissolves 0.001% by mass or more, preferably 0.01% by mass or more is preferable. Examples of the raw material sizing agent include a sizing agent containing a resin, and more specifically, at least one selected from a urethane resin, an acrylic resin, an epoxy resin, an amide resin, an ester resin and an ether resin as a main component. A sizing agent that contains an ester resin as a main component is preferable.
また、原料サイジング剤には、上記樹脂の他に、サイジング剤として一般的に含まれる界面活性剤等の成分を含んでいてもよい。原料サイジング剤の成分は、本実施形態で得られるサイジング剤にも引き継がれる（含まれる）。
＜混合工程＞
通常、フラーレンの原料サイジング剤への溶解速度は早くない。そのため、前記混合は、フラーレンが十分溶解するまで行うのが好ましい。一般的な回転羽付の攪拌機を用いてフラーレンと原料サイジング剤を混合した場合、混合時間は、１時間以上が好ましく、１０時間以上がより好ましく、５日以上がさらに好ましい。ただし、飽和溶解度に近づくと溶解速度は遅くなるので、前記混合時間の上限は１０日程度とすることが好ましい。In addition to the resin, the raw material sizing agent may contain components such as a surfactant generally included as a sizing agent. The components of the raw material sizing agent are inherited (included) in the sizing agent obtained in the present embodiment.
<Mixing process>
Usually, the dissolution rate of fullerene in the raw material sizing agent is not fast. Therefore, the mixing is preferably performed until the fullerene is sufficiently dissolved. When the fullerene and the raw material sizing agent are mixed using a general stirrer with a rotating blade, the mixing time is preferably 1 hour or longer, more preferably 10 hours or longer, and further preferably 5 days or longer. However, since the dissolution rate decreases as the saturation solubility is approached, the upper limit of the mixing time is preferably about 10 days.
＜不溶成分除去工程＞
前記混合工程で得られた混合液には、フラーレンの溶け残りなど、不溶成分が通常含まれる。このような不要成分があると、溶解しているフラーレンが析出しやすい。そのため、前記混合液から不溶成分を除去して、本実施形態のサイジング剤を得る。不溶成分を除去する方法としては、孔径０．１μｍ以下のフィルターでろ過する方法、遠心分離法、などが挙げられる。装置が簡便なことから前記ろ過が好ましい。また、ろ過をし易くするために、前記混合液を加熱して粘度を下げてもよい。ただし、加熱温度は、後述する温度範囲とすることが好ましい。<Insoluble component removal process>
The mixed solution obtained in the mixing step usually contains insoluble components such as undissolved fullerene. When there is such an unnecessary component, dissolved fullerene tends to precipitate. Therefore, insoluble components are removed from the mixed solution to obtain the sizing agent of this embodiment. Examples of the method for removing insoluble components include a method of filtering with a filter having a pore size of 0.1 μm or less, a centrifugal separation method, and the like. The filtration is preferred because the apparatus is simple. In order to facilitate filtration, the mixed solution may be heated to lower the viscosity. However, the heating temperature is preferably in the temperature range described later.
＜希釈工程＞
さらに、フラーレンの析出をし難くするために、あるいは、サイジング剤中のフラーレンの含有量を所望の濃度に調整するために、不溶成分除去工程で得たサイジング剤を、用いた原料サイジング剤で希釈してもよい。<Dilution process>
Furthermore, in order to make precipitation of fullerenes difficult or to adjust the fullerene content in the sizing agent to a desired concentration, the sizing agent obtained in the insoluble component removal step is diluted with the raw material sizing agent used. May be.
＜温度＞
以上のようにして本実施形態のサイジング剤を得ることができる。フラーレンの溶解度や原料サイジング剤の粘度の観点から、気温が低くても好ましくは１０℃以上に、より好ましくは５０℃以上、さらに好ましくは１００℃以上に加熱して前記各工程を行う。ただし、原料サイジング剤の成分の変性を防ぐためにはより低温の方が良く、好ましくは２００℃以下、より好ましくは１５０℃以下で前記各工程を行う。すなわち、前記各工程は、１０〜２００℃の範囲内で行うことが好ましい。<Temperature>
The sizing agent of this embodiment can be obtained as described above. From the viewpoint of the solubility of fullerene and the viscosity of the raw material sizing agent, even if the temperature is low, it is preferably heated to 10 ° C. or higher, more preferably 50 ° C. or higher, and still more preferably 100 ° C. or higher to perform the above steps. However, in order to prevent denaturation of the components of the raw material sizing agent, a lower temperature is better, and each step is preferably performed at 200 ° C. or lower, more preferably 150 ° C. or lower. That is, it is preferable to perform each said process within the range of 10-200 degreeC.
＜フラーレン含有量＞
サイジング剤中のフラーレンの含有量は、前述の効果を得やすくするために、好ましくは０．００１質量％以上、より好ましくは０．０１質量％以上である。また、サイジング剤中のフラーレンの含有量は、溶解しているフラーレンの析出を抑えるために、飽和溶解度を超えない範囲で、好ましくは１質量％以下、より好ましくは０．３質量％以下である。<Fullerene content>
The content of fullerene in the sizing agent is preferably 0.001% by mass or more, more preferably 0.01% by mass or more in order to easily obtain the above-described effect. Further, the content of fullerene in the sizing agent is preferably 1% by mass or less, more preferably 0.3% by mass or less, in a range not exceeding the saturation solubility in order to suppress precipitation of dissolved fullerene. .
サイジング剤中のフラーレンの含有量は、例えば、前記混合工程での混合時間やフラーレンの添加量を調整することにより、あるいは、前記希釈工程での希釈率により調整する。
＜フラーレン＞
本実施形態で用いるフラーレンは特に限定されないが、Ｃ６０、Ｃ７０及びＣ７０より高次フラーレンを含む混合物を用いることが好ましい。これは、Ｃ６０やＣ７０など単一のフラーレンの溶解度よりも、前記混合物の各フラーレン種の合計の溶解度の方が高くなりやすいためである。
＜繊維＞
本実施形態の繊維は、本実施形態のサイジング剤で被覆されている。原料となる繊維に、前記サイジング剤を塗布または浸漬等することにより、本実施形態の繊維を得ることができる。The fullerene content in the sizing agent is adjusted, for example, by adjusting the mixing time in the mixing step and the addition amount of fullerene, or by the dilution rate in the dilution step.
<Fullerene>
Although the fullerene used in the present embodiment is not particularly limited, it is preferable to use a mixture containing higher order fullerenes than C 60 , C 70 and C 70 . This than the solubility of the single fullerene such as C 60 and C 70, towards the solubility of the sum of the fullerene species of said mixture in order to easily increased.
<Fiber>
The fiber of this embodiment is coated with the sizing agent of this embodiment. The fiber of this embodiment can be obtained by applying or immersing the sizing agent on the raw material fiber.
前記原料となる繊維は特に限定されないが、一般にサイジング剤が用いられている繊維を挙げることができ、より具体的には、ガラス繊維、合成繊維及び炭素繊維等を挙げることができる。
＜繊維トウ＞
本実施形態の繊維トウは、該繊維トウを構成する繊維間に、本実施形態のサイジング剤を含む。原料となる繊維トウに、前記サイジング剤を塗布または浸漬等することにより、本実施形態の繊維トウを得ることができる。あるいは、本実施形態の繊維を束ねて、本実施形態の繊維トウとすることもできる。なお、原料となる繊維トウに用いられる繊維は、前述の本実施形態で用いられる原料となる繊維と同様である。すなわち、繊維トウを構成する繊維は、ガラス繊維、合成繊維または炭素繊維であってもよい。Although the fiber used as the said raw material is not specifically limited, The fiber in which the sizing agent is generally used can be mentioned, More specifically, a glass fiber, a synthetic fiber, a carbon fiber, etc. can be mentioned.
<Fiber tow>
The fiber tow of this embodiment includes the sizing agent of this embodiment between the fibers constituting the fiber tow. The fiber tow of this embodiment can be obtained by applying or immersing the sizing agent on the fiber tow as a raw material. Or the fiber of this embodiment can be bundled and it can also be set as the fiber tow of this embodiment. In addition, the fiber used for the fiber tow used as a raw material is the same as the fiber used as the raw material used in the above-described embodiment. That is, the fibers constituting the fiber tow may be glass fibers, synthetic fibers, or carbon fibers.
以下、実施例および比較例により本発明をさらに具体的に説明するが、本発明は以下の実施例のみに限定されるものではない。
＜フラーレン濃度の測定＞
サイジング剤を試料とし、これをトルエンで希釈したものについて、以下の測定を行った。EXAMPLES Hereinafter, although an Example and a comparative example demonstrate this invention further more concretely, this invention is not limited only to a following example.
<Measurement of fullerene concentration>
The following measurement was performed on a sizing agent as a sample and diluted with toluene.
予めフラーレンＣ６０、Ｃ７０およびより高次フラーレンのトルエン溶液で検量線を作成した高速液体クロマトグラフィー（装置：Ａｇｉｌｅｎｔ Ｔｅｃｈｎｏｌｏｇｙ製高速液体クロマトグラフ１２００ Ｓｅｒｉｅｓ；カラム：ＹＭＣ製カラムＹＭＣ−ｐａｃｋ ＯＤＳ−ＡＭ；展開溶媒（体積比）：トルエン／メタノール＝５１／４９；流速：１．２ ｍＬ／ｍｉｎ；検出方法：３０８ｎｍ紫外光吸収）により測定し、試料中の各フラーレン濃度を算出し、その合計を求めた。
＜対金属高温低速摩擦係数の測定＞
繊維の滑り性の試験を対金属高温低速摩擦係数の測定により行った。すなわち、試料の繊維を、東レエンジニアリング（株）製摩擦試験機ＹＦ８５０を使用して、糸速０．５ｍ／分、処理張力１０００ｇで供給し、直径５ｃｍの固定金属ビン摩擦体に２７０℃、角度５４０°で接触させて引っ張った張力より、式（１）から摩擦係数を算出し、試行回数５回の平均の値を求めた。High-performance liquid chromatography (calibrator: Agilent Technology high-performance liquid chromatograph 1200 Series; column: YMC column YMC-pack ODS-AM; a calibration curve prepared in advance with a toluene solution of fullerenes C 60 and C 70 and higher fullerenes; Developing solvent (volume ratio): toluene / methanol = 51/49; flow rate: 1.2 mL / min; detection method: 308 nm ultraviolet light absorption), calculating the concentration of each fullerene in the sample, and obtaining the total It was.
<Measurement of metal high-temperature low-speed friction coefficient>
A test of the slipperiness of the fiber was carried out by measuring the high temperature and low speed friction coefficient against metal. That is, the sample fiber was supplied at a thread speed of 0.5 m / min and a processing tension of 1000 g using a friction tester YF850 manufactured by Toray Engineering Co., Ltd. The friction coefficient was calculated from the formula (1) from the tension pulled by contacting at 540 °, and the average value of 5 trials was obtained.
摩擦係数 ＝ （張力） ／ （初期張力 ＋ 測定張力） （１）
（実施例１〜３）
１ｇのフラーレン（フロンティアカーボン社製 ｎａｎｏｍ（登録商標） ｍｉｘ ＳＴ）を５０ｇの原料サイジング剤（松本樹脂製薬社製、マーポゾールＷ−３３３、アクリル酸エステル系樹脂液）と混合し、３日間マグネチックスターラーで攪拌した。得られた混合液を、孔径０．１μｍのメンブランフィルターでろ過し、フラーレン含有量０．３質量％のサイジング剤０を得た。Coefficient of friction = (tension) / (initial tension + measured tension) (1)
(Examples 1-3)
1 g of fullerene (nanom (registered trademark) mix ST, manufactured by Frontier Carbon Co., Ltd.) was mixed with 50 g of raw material sizing agent (Matsumoto Resin Pharmaceutical Co., Ltd., Marposol W-333, acrylic ester resin solution), and a magnetic stirrer for 3 days. And stirred. The obtained mixed liquid was filtered through a membrane filter having a pore size of 0.1 μm to obtain a sizing agent 0 having a fullerene content of 0.3 mass%.
サイジング剤０を、前記と同じ原料サイジング剤で希釈し、フラーレン含有量がそれぞれ、０．０５質量％のサイジング剤１（実施例１）、０．１質量％のサイジング剤２（実施例２）、０．２質量％のサイジング剤３（実施例３）を得た。 Sizing agent 0 was diluted with the same raw material sizing agent as described above, and fullerene contents were 0.05% by mass of sizing agent 1 (Example 1) and 0.1% by mass of sizing agent 2 (Example 2), respectively. 0.2% by mass of sizing agent 3 (Example 3) was obtained.
なお、サイジング剤０〜３を得た上記全工程は２０℃で行った。
＜繊維へのサイジング処理＞
得られた各サイジング剤について、東レ製の６６ナイロン糸（４７０Ｔ−７２−１７８１）を２０℃で１０秒間浸漬し、サイジング処理を行い、滑り性対金属高温低速摩擦係数の測定を行い摩擦係数を求めた。結果を表１に示す。
（比較例１）
サイジング剤１の代わりに、原料サイジング剤（フラーレンを含まないサイジング剤）を用いた以外は、実施例１と同様に操作及び測定を行った。In addition, all the said processes which obtained the sizing agents 0-3 were performed at 20 degreeC.
<Sizing treatment for fibers>
About each obtained sizing agent, Toray 66 nylon thread (470T-72-1781) is immersed at 20 ° C. for 10 seconds, subjected to sizing treatment, and the friction coefficient is determined by measuring the slip property versus the metal high temperature low speed friction coefficient. Asked. The results are shown in Table 1.
(Comparative Example 1)
The operation and measurement were performed in the same manner as in Example 1 except that a raw material sizing agent (a sizing agent not containing fullerene) was used instead of the sizing agent 1.
Claims (12)
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