JP5406445B2 - Bamboo fiber reinforcement and manufacturing method thereof - Google Patents
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- JP5406445B2 JP5406445B2 JP2007297406A JP2007297406A JP5406445B2 JP 5406445 B2 JP5406445 B2 JP 5406445B2 JP 2007297406 A JP2007297406 A JP 2007297406A JP 2007297406 A JP2007297406 A JP 2007297406A JP 5406445 B2 JP5406445 B2 JP 5406445B2
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- 239000000835 fiber Substances 0.000 title claims description 100
- 235000017166 Bambusa arundinacea Nutrition 0.000 title claims description 68
- 235000017491 Bambusa tulda Nutrition 0.000 title claims description 68
- 241001330002 Bambuseae Species 0.000 title claims description 68
- 235000015334 Phyllostachys viridis Nutrition 0.000 title claims description 68
- 239000011425 bamboo Substances 0.000 title claims description 68
- 238000004519 manufacturing process Methods 0.000 title claims description 15
- 230000002787 reinforcement Effects 0.000 title claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 48
- 239000000463 material Substances 0.000 claims description 33
- 238000000034 method Methods 0.000 claims description 32
- 239000012779 reinforcing material Substances 0.000 claims description 22
- 238000005406 washing Methods 0.000 claims description 22
- 229920002430 Fibre-reinforced plastic Polymers 0.000 claims description 18
- 239000011151 fibre-reinforced plastic Substances 0.000 claims description 18
- 238000001035 drying Methods 0.000 claims description 17
- 238000009835 boiling Methods 0.000 claims description 12
- 239000003733 fiber-reinforced composite Substances 0.000 claims description 11
- 238000010025 steaming Methods 0.000 claims description 9
- 238000012545 processing Methods 0.000 claims description 8
- 230000002792 vascular Effects 0.000 claims description 8
- 238000004299 exfoliation Methods 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 claims description 2
- 238000004898 kneading Methods 0.000 claims description 2
- 241000239290 Araneae Species 0.000 claims 1
- 206010036790 Productive cough Diseases 0.000 description 3
- 238000011161 development Methods 0.000 description 3
- 210000003802 sputum Anatomy 0.000 description 3
- 208000024794 sputum Diseases 0.000 description 3
- 206010040844 Skin exfoliation Diseases 0.000 description 2
- 230000003749 cleanliness Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000010298 pulverizing process Methods 0.000 description 2
- 238000007790 scraping Methods 0.000 description 2
- 244000025254 Cannabis sativa Species 0.000 description 1
- 235000012766 Cannabis sativa ssp. sativa var. sativa Nutrition 0.000 description 1
- 235000012765 Cannabis sativa ssp. sativa var. spontanea Nutrition 0.000 description 1
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- 238000002679 ablation Methods 0.000 description 1
- 235000009120 camo Nutrition 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 235000005607 chanvre indien Nutrition 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 239000011487 hemp Substances 0.000 description 1
- 238000001027 hydrothermal synthesis Methods 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 239000010893 paper waste Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000012783 reinforcing fiber Substances 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 239000008237 rinsing water Substances 0.000 description 1
- 235000013599 spices Nutrition 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
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Description
本発明は、竹繊維の製造方法に係り、詳しくは、繊維強化プラスチック（ＦＲＰ）その他の繊維強化型複合材料の強化材として用いられる竹繊維強化材及びその製造方法に関する。 The present invention relates to a method for manufacturing bamboo fiber, and more particularly to a bamboo fiber reinforcing material used as a reinforcing material for fiber reinforced plastic (FRP) and other fiber reinforced composite materials, and a method for manufacturing the same.
従来より、採取した竹材から竹繊維を製造し、繊維強化プラスチック（ＦＲＰ）その他の繊維強化型複合材料の強化材（強化繊維に同じ）として用いることが知られている（例えば、特許文献１、２及び３を参照）。
ここでは、強化材としての強度（カーボン繊維に匹敵する）はもとより、焼却が困難なガラス繊維に代えて、麻繊維、竹繊維その他の天然繊維を使用し、繊維強化型複合材料の廃棄処理時の環境負荷を低減する点に利点を求めている。 Here, hemp fiber, bamboo fiber and other natural fibers are used in place of glass fiber, which is difficult to incinerate, as well as strength as a reinforcing material (comparable to carbon fiber). We are looking for an advantage in reducing the environmental load.
しかしながら、どのような形態の竹繊維を調達できるかという点に問題があり、一概に単繊維であれは強化材として十全であるというわけにもゆかない。単繊維間の結着力を残して利用するためには繊維径が数百μｍ程度の繊維束鞘や繊維束の繊維形態も考慮されるからである。 However, there is a problem in what form of bamboo fiber can be procured, and it cannot be said that a single fiber is generally sufficient as a reinforcing material. This is because a fiber bundle sheath having a fiber diameter of about several hundred μm and a fiber form of a fiber bundle are also considered in order to use the fiber with a binding force between single fibers.
ところで市場提供されている竹繊維は、一般的には機械的な解繊処理を施すことにより製造されており、概して繊維径が数百μｍを超えるミリ単位のものであり、その剛直性が折損等の欠点となる場合があった。 By the way, bamboo fiber on the market is generally manufactured by applying a mechanical defibration treatment, and the fiber diameter is generally in the millimeter unit exceeding several hundred μm, and its rigidity is broken. In some cases, such a disadvantage occurs.
本発明者らは、古紙等の繊維含有材料の粗粉砕から解繊までを効率的におこなう解繊装置（粗粉砕装置を含む）や該繊維含有材料を主原料とする複合再生成形物の開発に携わってきた。もちろん、繊維含有材料として竹材も扱ってきている。 The present inventors have developed a defibrating apparatus (including a coarse pulverizing apparatus) that efficiently performs from coarse pulverization to defibration of fiber-containing materials such as waste paper, and composite regenerated molded products using the fiber-containing material as a main raw material. Has been involved in. Of course, bamboo has also been handled as a fiber-containing material.
こうしたなかで、繊維径が数百μｍ以下、又は数百μｍを超えるミリ単位以下であり、かつ、繊維長が数ミリメートル〜百ミリメートルを確保可能に物理的（機械的）に削剥して得られる竹繊維及びその製造技術を要請されきた。本発明者らは、この要請に積極的に対応し、かつ、研究開発を推進してきた。 Under these circumstances, the fiber diameter is several hundred μm or less, or a millimeter unit or more exceeding several hundred μm, and the fiber length is obtained by physical (mechanical) scraping so as to ensure several millimeters to hundred millimeters. Bamboo fiber and its manufacturing technology have been requested. The present inventors have actively responded to this demand and promoted research and development.
本発明が解決しようとする問題点は、繊維径が数百μｍ以下、又は数百μｍを超えるミリ単位以下で、繊維長が数ミリメートル〜百ミリメートルを確保し、強化繊維として最適な形態を有する削剥竹繊維を物理的処理（機械的手段）により効率的に製造する点にある。そして、繊維強化型複合材料に関する新たな材料開発への寄与を図るものである。 The problem to be solved by the present invention is that the fiber diameter is several hundreds μm or less, or less than a millimeter unit exceeding several hundreds μm, the fiber length is secured from several millimeters to one hundred millimeters, and has an optimum form as a reinforcing fiber. It is in the point that the scraped bamboo fiber is efficiently manufactured by physical treatment (mechanical means). And it contributes to the new material development regarding a fiber reinforced composite material.
本発明はこのような事情に鑑みなされたものであって、上記課題を解消し、繊維強化型複合材料の強化材として、採取した竹材を物理的（機械的）に削剥して所望の繊維径及び繊維長の竹繊維を得ることができる竹繊維強化材及びその製造方法を提供するものである。 The present invention has been made in view of such circumstances, and solves the above-mentioned problems, and as a reinforcing material for a fiber-reinforced composite material, the collected bamboo material is physically (mechanically) scraped to a desired fiber diameter. And a bamboo fiber reinforcement capable of obtaining bamboo fiber having a fiber length and a method for producing the same.
課題を解決するために本発明は、繊維強化プラスチック（ＦＲＰ）その他の繊維強化型複合材料の強化材として用いられる竹繊維強化材において、
採取した竹材の周方向に鉋その他の切削刃を当接し、該竹材の繊維配向と交差する方向に鉋掛け又は削進して得られるフィラメント状の削剥竹繊維からなることを特徴とするものである。
In order to solve the problem, the present invention provides a bamboo fiber reinforcing material used as a reinforcing material for fiber reinforced plastic (FRP) and other fiber reinforced composite materials.
It consists of filament-like exfoliated bamboo fibers obtained by abutting a cocoon or other cutting blade in the circumferential direction of the collected bamboo material, and hanging or cutting in a direction crossing the fiber orientation of the bamboo material. is there.
また、その製造方法であって、以下の処理工程を包含することを特徴することを特徴とするものである。 Moreover, the manufacturing method is characterized by including the following processing steps.
（１）採取した竹材の周方向に鉋その他の切削刃を当接し、該竹材の繊維配向と交差する方向に鉋掛け又は削進してゆきフィラメント状の削剥竹繊維を得る削剥処理工程。 (1) An exfoliation process step of obtaining a filament-like exfoliated bamboo fiber by bringing a cutting blade or other cutting blade into contact with the circumferential direction of the collected bamboo material and hanging or advancing in a direction crossing the fiber orientation of the bamboo material.
（２）削剥竹繊維を水を用い加圧下で煮沸又は蒸煮する熱水処理工程。 (2) A hot water treatment process in which the scraped bamboo fiber is boiled or steamed under pressure using water.
（３）削剥竹繊維を揉みほぐしながら水洗する揉捻水洗処理工程。 (3) A spear water washing treatment step of washing off the scraped bamboo fibers while kneading them.
（４）上記（２）および／または（３）の処理工程を経た削剥竹繊維を自然乾燥又は強制乾燥する乾燥処理工程。 (4) A drying treatment step of naturally drying or forcibly drying the scraped bamboo fiber that has undergone the treatment step (2) and / or (3).
本発明は以上の構成よりなるものであり、採取した竹材を機械的に削剥することにより、繊維強化型複合材料の強化材として至適な繊維径及び繊維長の削剥竹繊維を得ることができる。しかも、熱水処理および／または揉捻水洗処理を施すので、繊維表面に剛直性の原因となる付着物（重繊維）が残存することを極力排除できる。とりわけ、繊維強化プラスチック（ＦＲＰ）の強化材として有用である。 The present invention has the above-described configuration, and by cutting off the collected bamboo material mechanically, it is possible to obtain a cut-off bamboo fiber having an optimum fiber diameter and fiber length as a reinforcing material for the fiber-reinforced composite material. . In addition, since hot water treatment and / or sputum water washing treatment is performed, it is possible to eliminate as much as possible the deposits (heavy fibers) that cause rigidity on the fiber surface. In particular, it is useful as a reinforcing material for fiber reinforced plastic (FRP).
本発明を実施するための最良形態は、上記構成において、至適な削剥竹繊維は、１ミリメートル以下の断面径で、数ミリメートル〜百ミリメートルの繊維長からなる単繊維又は分断された繊維束（維管束鞘ないしは維管束に同じ）である。 The best mode for carrying out the present invention is that, in the above-described configuration, the optimal scraped bamboo fiber has a cross-sectional diameter of 1 mm or less and a single fiber or a split fiber bundle having a fiber length of several millimeters to hundred millimeters ( Same as vascular sheath or vascular bundle).
また、揉捻水洗処理工程と熱水処理工程の先後を問わない場合がある。また、熱水処理工程を省略し、揉捻水洗処理工程のみを経て乾燥処理工程へ移行する場合がある。揉捻水洗処理の度合い（処理効果）によって繊維表面について所望の清浄度が確保されれば問題ないからである。 Moreover, there is a case where the front and back of the water washing process and the hot water treatment process are not questioned. Moreover, a hot water treatment process may be abbreviate | omitted and it may transfer to a drying treatment process through only the water washing process process. This is because there is no problem as long as a desired cleanliness is ensured for the fiber surface by the degree of water washing treatment (treatment effect).
本発明の一実施例について添付図面を参照して以下説明する。 An embodiment of the present invention will be described below with reference to the accompanying drawings.
（実施例１）
図１は、処理工程のフロー図である。
Example 1
FIG. 1 is a flowchart of processing steps.
図示するように、本発明は繊維強化プラスチック（ＦＲＰ）その他の繊維強化型複合材料の強化材として用いられる竹繊維強化材の製造方法であり、（１）削剥処理工程、（２）熱水処理工程、（３）揉捻水洗処理工程、及び（４）乾燥処理工程の各処理工程を包含するものである。 As shown in the figure, the present invention is a method for producing a bamboo fiber reinforcing material used as a reinforcing material for fiber reinforced plastic (FRP) or other fiber reinforced composite materials. (1) Exfoliation treatment process, (2) Hot water treatment Each process includes a process, (3) a spear water washing process, and (4) a drying process.
（１）削剥処理工程は、採取した竹材の周方向に鉋その他の切削刃を当接し、該竹材の繊維配向と交差する方向に鉋掛け又は削進してゆきフィラメント状の削剥竹繊維を得る機械的な処理をおこなうものである。 (1) In the scraping treatment step, a bamboo or other cutting blade is brought into contact with the circumferential direction of the collected bamboo material, and it is hung or advanced in a direction crossing the fiber orientation of the bamboo material to obtain a filament-like scraped bamboo fiber It performs mechanical processing.
至適な削剥竹繊維は、１ミリメートル以下の断面径で、数ミリメートル〜百ミリメートルの繊維長からなる単繊維又は分断された繊維束（維管束鞘ないしは維管束に同じ）からなるものである。 Optimum exfoliated bamboo fibers are composed of a single fiber or a split fiber bundle (same as a vascular sheath or vascular bundle) having a cross-sectional diameter of 1 millimeter or less and a fiber length of several millimeters to hundred millimeters.
（２）熱水処理工程は、煮沸処理（21）であって、削剥竹繊維を水に浸漬して加圧下１００℃超に加温して煮沸する処理をおこなうものである。 (2) The hot water treatment step is a boiling treatment (21), in which exfoliated bamboo fibers are immersed in water, heated to over 100 ° C. under pressure, and boiled.
好適な煮沸処理条件は、加圧下１００〜１３５℃の熱湯中で１〜２０分間煮沸するものとされる。 A suitable boiling treatment condition is to boil in hot water at 100 to 135 ° C. for 1 to 20 minutes under pressure.
（３）揉捻水洗処理工程は、煮沸処理後、１００℃以下になるまで放冷した削剥竹繊維を揉みほぐしながら水洗する処理をおこなうものである。 (3) The cocoon rinsing water washing process is a process of washing with water while boiling off the exfoliated bamboo fiber which has been allowed to cool to 100 ° C. or less after boiling.
（４）乾燥処理工程は、揉捻水洗処理後の削剥竹繊維を自然乾燥又は強制乾燥する処理をおこなうものである。 (4) A drying process performs the process of carrying out the natural drying or the forced drying of the scraped bamboo fiber after a spear water washing process.
（実施例２）
図２は、他の選択的な処理工程のフロー図である。
(Example 2)
FIG. 2 is a flow diagram of another optional processing step.
図示するように、（１）削剥処理工程、（２）熱水処理工程、（３）揉捻水洗処理工程、及び（４）乾燥処理工程の各処理工程を包含するものである。なお、（２）熱水処理工程と（３）揉捻水洗処理工程の先後は問わない。 As shown in the drawing, each processing step includes (1) an ablation processing step, (2) a hot water treatment step, (3) a spear water washing treatment step, and (4) a drying treatment step. In addition, the front and back of (2) hot water treatment process and (3) sputum water washing treatment process are not ask | required.
ここで、熱水処理工程は、煮沸処理（21）又は蒸煮処理（22）を選択可能とするものであり、熱水処理工程における煮沸処理条件は、加圧下１００〜１３５℃の熱湯中で１〜２０分間煮沸するものである。 Here, the hot water treatment step allows selection of boiling treatment (21) or steaming treatment (22), and the boiling treatment condition in the hot water treatment step is 1 in hot water at 100 to 135 ° C. under pressure. Boil for ~ 20 minutes.
また、蒸煮処理条件はが、加圧下１００〜１３５℃の湯気中で１〜２０分間蒸煮するものである。 Moreover, the steaming treatment conditions are those for steaming for 1 to 20 minutes in steam at 100 to 135 ° C. under pressure.
さらに、揉捻水洗処理工程を経ておこなう場合の熱水処理工程を、電磁波加熱処理工程に代替してもよい。 Furthermore, you may substitute the hot-water-treatment process in the case of performing through a sputum water washing process process to an electromagnetic wave heat treatment process.
なお、熱水処理工程を省略し、揉捻水洗処理工程のみを経て乾燥処理工程へ移行する場合がある。揉捻水洗処理の度合い（処理効果）によって繊維表面について所望の清浄度が確保されれば問題ないからである。 In some cases, the hot water treatment process is omitted, and the process proceeds to the drying treatment process only through the water washing process. This is because there is no problem as long as a desired cleanliness is ensured for the fiber surface by the degree of water washing treatment (treatment effect).
本発明は、繊維強化型複合材料の強化材として至適な繊維形態の竹繊維を得るものであり、特に繊維強化プラスチック（ＦＲＰ）の強化材として有用な繊維形態（性状を含む）を実現可能とするものであり、斯界の要請に応え、しかも新たな材料開発に寄与する開発技術として有用であり、産業上有益である。 INDUSTRIAL APPLICABILITY The present invention obtains bamboo fiber having an optimum fiber form as a reinforcing material for a fiber-reinforced composite material, and in particular, a fiber form (including properties) useful as a reinforcing material for fiber-reinforced plastic (FRP) can be realized. It is useful as a development technology that meets the demands of this field and contributes to the development of new materials, and is industrially useful.
１ 削剥処理工程
２ 熱水処理工程
21 煮沸処理工程
22 蒸煮処理工程
３ 揉捻水洗処理工程
４ 乾燥処理工程
1
21 Boiling process
22
Claims (8)
採取した竹材の周方向に鉋その他の切削刃を当接し、該竹材の繊維配向と交差する方向に鉋掛け又は削進して得られるフィラメント状の削剥竹繊維を素材とする竹繊維強化材であって、
前記削剥竹繊維が、１ミリメートル以下の繊維径で、数ミリメートル〜百ミリメートルの繊維長を有する単繊維又は分断された繊維束（維管束鞘ないしは維管束に同じ）からなるものであり、該削剥竹繊維を被処理素材として、加圧下で煮沸又は蒸煮する熱水処理および／または揉捻水洗処理を施して繊維表面を清浄化し、かつ、剛直性を減殺した後、乾燥処理してなることを特徴とする竹繊維強化材。 In bamboo fiber reinforcement used as a reinforcement for fiber reinforced plastic (FRP) and other fiber reinforced composite materials,
A bamboo fiber reinforcing material made of filament-like exfoliated bamboo fiber obtained by contacting a bamboo or other cutting blade in the circumferential direction of the collected bamboo material and hanging or cutting in a direction crossing the fiber orientation of the bamboo material. There,
The scraped bamboo fiber is made of a single fiber having a fiber diameter of 1 millimeter or less and a fiber length of several millimeters to a hundred millimeters or a split fiber bundle (same as a vascular sheath or vascular bundle). Bamboo fiber is used as the material to be treated, and the fiber surface is cleaned by boiling and steaming under hot water and / or watering treatment to clean the fiber surface. Bamboo fiber reinforcement.
繊維強化プラスチック（ＦＲＰ）その他の繊維強化型複合材料の強化材として用いられる竹繊維強化材の製造方法であって、以下の処理工程を包含することを特徴とする竹繊維強化材の製造方法。
（１）採取した竹材の周方向に鉋その他の切削刃を当接し、該竹材の繊維配向と交差する方向に鉋掛け又は削進してゆきフィラメント状の削剥竹繊維を得る削剥処理工程。
（２）削剥竹繊維を水を用い加圧下で煮沸又は蒸煮する熱水処理工程。
（３）削剥竹繊維を揉みほぐしながら水洗する揉捻水洗処理工程。
（４）上記揉捻水洗処理工程を経た削剥竹繊維を自然乾燥又は強制乾燥する乾燥処理工程。 In the manufacturing method of bamboo fiber,
A method for producing bamboo fiber reinforcing material used as a reinforcing material for fiber reinforced plastic (FRP) and other fiber reinforced composite materials, comprising the following processing steps.
(1) An exfoliation process step of obtaining a filament-like exfoliated bamboo fiber by bringing a cutting blade or other cutting blade into contact with the circumferential direction of the collected bamboo material and hanging or advancing in a direction crossing the fiber orientation of the bamboo material.
(2) A hot water treatment process in which the scraped bamboo fiber is boiled or steamed under pressure using water.
(3) A spear water washing treatment step of washing off the scraped bamboo fibers while kneading them.
(4) A drying treatment step of natural drying or forced drying of the exfoliated bamboo fiber that has undergone the above-described water washing process.
繊維強化プラスチック（ＦＲＰ）その他の繊維強化型複合材料の強化材として用いられる竹繊維強化材の製造方法であって、以下の処理工程を包含することを特徴とする竹繊維強化材の製造方法。
（１）採取した竹材の周方向に鉋その他の切削刃を当接し、該竹材の繊維配向と交差する方向に鉋掛け又は削進してゆきフィラメント状の削剥竹繊維を得る削剥処理工程。
（２）削剥竹繊維を揉みほぐしながら水洗する揉捻水洗処理工程。
（３）削剥竹繊維を水を用い加圧下で煮沸又は蒸煮する熱水処理工程。
（４）上記（２）および／または（３）の処理工程を経た削剥竹繊維を自然乾燥又は強制乾燥する乾燥処理工程。 In the manufacturing method of bamboo fiber,
A method for producing bamboo fiber reinforcing material used as a reinforcing material for fiber reinforced plastic (FRP) and other fiber reinforced composite materials, comprising the following processing steps.
(1) An exfoliation process step of obtaining a filament-like exfoliated bamboo fiber by bringing a cutting blade or other cutting blade into contact with the circumferential direction of the collected bamboo material and hanging or advancing in a direction crossing the fiber orientation of the bamboo material.
(2) A spear rinsing process for rinsing the exfoliated bamboo fibers while squeezing them.
(3) A hot water treatment step of boiling or steaming the exfoliated bamboo fiber under pressure using water.
(4) A drying treatment step of naturally drying or forcibly drying the scraped bamboo fiber that has undergone the treatment step (2) and / or (3).
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| JP6318461B2 (en) * | 2013-01-18 | 2018-05-09 | 三菱自動車工業株式会社 | Bamboo fiber sheet |
| JP6175776B2 (en) * | 2013-01-18 | 2017-08-09 | 三菱自動車工業株式会社 | Bamboo fiber sheet manufacturing method |
| TWI521107B (en) * | 2014-08-01 | 2016-02-11 | 財團法人紡織產業綜合研究所 | Preparing method of polysaccharide fiber |
| JP7280145B2 (en) * | 2019-08-08 | 2023-05-23 | 永大産業株式会社 | Separation method of bamboo tissue |
| CN116425496B (en) * | 2023-03-17 | 2024-04-19 | 泰山石膏（江阴）有限公司 | High-strength gypsum-based fiber board and preparation method thereof |
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