WO2006059526A1 - Bamboo fiber reinforced plastic formed article and method for production thereof - Google Patents

Bamboo fiber reinforced plastic formed article and method for production thereof Download PDF

Info

Publication number
WO2006059526A1
WO2006059526A1 PCT/JP2005/021546 JP2005021546W WO2006059526A1 WO 2006059526 A1 WO2006059526 A1 WO 2006059526A1 JP 2005021546 W JP2005021546 W JP 2005021546W WO 2006059526 A1 WO2006059526 A1 WO 2006059526A1
Authority
WO
WIPO (PCT)
Prior art keywords
bamboo
fiber
reinforced plastic
fibers
bamboo fiber
Prior art date
Application number
PCT/JP2005/021546
Other languages
French (fr)
Japanese (ja)
Inventor
Hideyuki Suzuki
Original Assignee
Nichimen Chemical Industry Co., Ltd.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from JP2004346555A external-priority patent/JP2006150819A/en
Priority claimed from JP2004371230A external-priority patent/JP2006176642A/en
Application filed by Nichimen Chemical Industry Co., Ltd. filed Critical Nichimen Chemical Industry Co., Ltd.
Publication of WO2006059526A1 publication Critical patent/WO2006059526A1/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/003—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor characterised by the choice of material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/26—Scrap or recycled material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/30—Vehicles, e.g. ships or aircraft, or body parts thereof
    • B29L2031/3044—Bumpers

Definitions

  • the present invention relates to a plastic molded product reinforced with bamboo cocoon fibers and a method for producing the same.
  • bamboo cocoon fibers are mixed with thermoplastic resin to produce pellets, and then these pellets are used for injection molding to produce products (bamboo fiber reinforced plastic molded products).
  • bamboo cocoon fibers are 1.5 times stronger than reinforcing bars. Therefore, by mixing bamboo cocoon fiber, the strength of the plastic can be improved, and it can be manufactured at a lower cost than plastics mixed with glass fiber or carbon fiber. In addition, when bamboo fiber is mixed in a large amount, the waste product can be incinerated and there are few harmful gases.
  • bamboo short fibers can be used, and the refinement process of bamboo fibers to obtain the short fibers is complicated.
  • the specific gravity of bamboo fiber is smaller than that of rosin, the bamboo fiber floats up in the molten rosin and when it is commercialized, bamboo cocoon fibers appear on the surface of the molded product, resulting in non-uniformity.
  • the touch is rough and smooth and the appearance is poor.
  • An object of the present invention is to provide a bamboo fiber reinforced plastic molded article that eliminates the above-mentioned drawbacks, has excellent mechanical properties such as bending strength, tensile strength, and impact strength, and has a good appearance.
  • the present inventor has conducted extensive research and found that the bamboo cocoon fiber has When molding and curing with thermosetting resin in the same direction, the mechanical properties such as bending strength of the finished bamboo fiber reinforced plastic are greatly improved.
  • the present inventors have found that the surface of the bamboo fiber sheet covered with a thermoplastic resin is placed in a mold and then compression-molded and then the surface becomes smooth and good in appearance, leading to the present invention.
  • the bamboo fiber reinforced plastic molded product of claim 1 is molded and cured by placing bamboo cocoon fibers in a thermosetting resin in a state where they are aligned in the length direction.
  • the bamboo fiber reinforced plastic molded product according to claim 2 is molded and cured by placing the bamboo cocoon fibers in the thermosetting resin in a state of being bundled in the length direction.
  • the bamboo fiber reinforced plastic molded product of claim 3 is molded and cured by placing the tie-like bamboo fibers obtained by twisting bamboo cocoon fibers into a tie-like shape in a thermosetting resin in the state of being aligned in the length direction.
  • the bamboo fiber reinforced plastic molded article according to claim 4 is made by aligning a bamboo-shaped bamboo fiber obtained by twisting bamboo cocoon fibers and a Z- or bamboo cocoon fiber in the length direction.
  • At least one of the fibers of the bamboo cocoon fiber, glass fiber, and carbon fiber fiber is placed in a thermosetting resin in a state in which the directions are not aligned, and is molded and cured.
  • the bamboo fiber reinforced plastic molded product according to claim 5 is compression-molded with a bamboo fiber sheet sandwiched between thermoplastic resin layers.
  • the bamboo fiber reinforced plastic molded product according to claim 6 is formed by alternately laminating a thermoplastic resin layer and a plurality of bamboo fiber sheets, and compression molding.
  • the manufacturing method according to claim 7 is a method of placing a bamboo-like bamboo fiber obtained by twisting bamboo cocoon fibers and a fiber of Z or bamboo cocoon in a mold in a state of being aligned in the length direction,
  • thermosetting resin is put into the mold, and then compression heating molding is performed.
  • the manufacturing method of claim 8 comprises impregnating a thermosetting resin in a state in which the tie-like bamboo fibers obtained by twisting bamboo cocoon fibers and Z or bamboo cocoon fibers are aligned in the length direction. After that, it is put into a mold and subjected to compression heating molding.
  • the manufacturing method according to claim 9 is a method in which a thermosetting resin is applied in a state in which the tie-like bamboo fibers obtained by twisting the bamboo cocoon fibers and the Z or bamboo cocoon fibers are aligned in the length direction. Then gold It is characterized by being put in a mold and subjected to compression heating molding.
  • the manufacturing method according to claim 10 is the manufacturing method according to claim 8 or 9, wherein a thermosetting resin impregnated or coated is placed in a mold, and further, the thermosetting resin in the mold. It is characterized by putting
  • a bamboo fiber sheet made of bamboo cocoon fiber is sandwiched between thermoplastic resin layers, and the surface is covered with a thermoplastic resin layer and placed in a mold, and then compression molded. It is characterized by this.
  • the manufacturing method according to claim 12 is a method in which a thermoplastic fiber layer and bamboo fiber sheets made of a plurality of bamboo cocoon fibers are alternately laminated, and the surface is covered with a thermoplastic resin layer and placed in a mold. It is characterized by compression molding.
  • the manufacturing method of claim 13 is characterized in that a thermoplastic resin layer is layered on a bamboo fiber sheet made of bamboo cocoon fibers, and the bamboo fiber sheet is exposed on one side and placed in a mold, followed by compression molding.
  • a plurality of bamboo fiber sheets are sequentially stacked on a bamboo fiber sheet made of bamboo cocoon fibers via a thermoplastic resin layer, and the bamboo fiber sheet is exposed on one side. It is characterized by being put into a mold and compression molded.
  • the bamboo cocoon fiber used in the manufacturing method of any one of claims 7 to 14 is boiled in a high-pressure kettle, and bamboo hemicellulose and ligne are obtained. It is characterized by fibrillation and fiberization after disassembly.
  • thermosetting resin and the thermoplastic resin are appropriately selected according to the purpose of use of the molded product, which may be any known one.
  • the use of biodegradable plastic is preferable because it reduces the environmental burden.
  • the bamboo fiber reinforced plastic molded product of the present invention is a plastic reinforced with glass fiber or carbon fiber, which has a bending strength improved by about 2 to 5 times compared to that of a bamboo shoot, mixed with bamboo cocoon fiber. Not inferior to molded products.
  • bamboo cocoon fibers used are cheaper than glass fibers and carbon fibers, and fiber-reinforced plastics can be manufactured at low cost. Also, glass fiber has a low environmental impact And has advantages over carbon fiber.
  • bamboo cocoon fibers when twisted in a tied shape, they can be placed side by side in a mold or immediately cut to a desired length for use. .
  • the molded article has a smooth surface and a good appearance.
  • the bamboo cocoon fiber used in the present invention is manufactured as follows. Cut bamboo, such as bamboo and bamboo shoots, and cut the leaves after dropping the leaves into several centimeters to 2 meters to make bamboo.
  • the bamboo material is put in a high-pressure kettle together with water or hot water, and when the temperature of the water or hot water is raised, the pressure in the kettle is raised and the bamboo material is boiled under high temperature and high pressure. At this time, the pressure in the kettle may be increased at the same time as the temperature of the water or hot water is raised after the pressure is appropriately reduced and water or hot water is added. Thereafter, the bamboo material is taken out from the high-pressure kettle, and is defibrated using a defibrating machine to form fibers.
  • the bamboo cocoon fiber produced is cut to a desired length, and the direction is aligned and placed in a mold.
  • the bamboo bamboo fibers produced are cut into a desired length and bundled into a mold.
  • thermosetting resin is put into the mold.
  • thermosetting rosin may be in the form of powder, granule, or liquid, and the input includes both adding powder or granule and pouring liquid. To do.
  • thermosetting resin may be any of known resins such as phenol resin, epoxy resin, unsaturated polyester resin, urea resin, melamine resin, and urea resin.
  • bamboo fiber reinforced plastic having a desired shape such as a plate material is obtained by compression heating molding.
  • bamboo cocoon fiber is preferably 10-75% by weight in bamboo fiber reinforced plastic, but if it is 1-90% by weight, it is 10-75% by weight. Although it is somewhat inferior, the mechanical properties such as bending strength can be improved.
  • the obtained bamboo fiber reinforced plastic is mixed with bamboo fiber.
  • the bamboo fiber reinforced plastic is slightly different depending on the mixing ratio of bamboo fiber, but in the direction perpendicular to the length direction of the mixed bamboo fiber. Bending strength is improved about 2 to 5 times.
  • the bamboo cocoon fiber manufacturing method is the same, but the subsequent manufacturing method is different.
  • a plurality of bamboo cocoon fibers produced are twisted together to form a tie, and the tie-like bamboo fibers are cut to an appropriate length and aligned in a mold.
  • bamboo cocoon fibers that are not bound are put into the mold without aligning the direction, and thermosetting resin is put into the mold.
  • bamboo fiber reinforced plastic of a desired shape is obtained by compression thermoforming.
  • the manufacturing method of the bamboo cocoon fiber is the same, but the subsequent manufacturing method is different.
  • bamboo cocoon fiber is twisted as it is or by twisting a plurality of fibers, impregnated or coated with thermosetting resin in the lengthwise direction, and then placed in the mold. Thereafter, a thermosetting resin is appropriately put into the mold, and a bamboo fiber reinforced plastic having a desired shape is obtained by compression thermoforming.
  • bamboo cocoon fibers are woven and knitted in the same way as other fiber woven fabrics to produce bamboo fiber sheets.
  • a bamboo fiber sheet is produced by forming the fleece in the same manner as other non-woven fabrics and then bonding the fibers together.
  • the woven bamboo fiber sheet is usually plain weave because it emphasizes strength over appearance and is easy to manufacture. However, this may be knitted with other known weaving methods. It is not something.
  • the bamboo fiber sheet is sandwiched between thermoplastic resin layers, placed in a mold, and compression molded (pressurized to 500-2 OOOkgZcm 2 ) to integrate the whole.
  • thermoplastic resin layer When the thermoplastic resin layer is heated to about 100 to 280 ° C., the thermoplastic resin layer and the bamboo fiber sheet can be integrated by compression molding without modification of the bamboo fiber.
  • thermoplastic resin layer is a general term for what covers the surface of a bamboo fiber sheet, and it may be a deviation of a plate, powder or pellet! / !.
  • the obtained bamboo fiber reinforced plastic molded article is coated with a thermoplastic resin layer around the bamboo fiber sheet and has a smooth surface and a good appearance.
  • bending strength, tensile strength, and impact strength are improved compared to molded products made of thermoplastic resin having the same thickness.
  • thermoplastic resin layers and multiple bamboo fiber sheets are alternately laminated, the bending strength, tensile strength, and impact strength are even higher than those with only one bamboo fiber sheet sandwiched between thermoplastic resin layers. improves.
  • the difference from the fourth embodiment is that only one surface of the bamboo fiber sheet is coated with thermoplastic resin.
  • thermoplastic resin layer is stacked on a bamboo fiber sheet, and the bamboo fiber sheet is exposed on one side and placed in a mold and compression molded. If necessary, the process of stacking bamboo fiber sheets and adding thermoplastic resin onto them may be repeated one or more times.
  • the bamboo fiber sheet is simply overlaid on the thermoplastic resin layer, but bamboo coated with noinda bamboo fiber sheets can be produced using fibers, positioned on a thermoplastic resin board, and then compression molded.
  • thermoplastic resin layers in the case where there are a plurality of thermoplastic resin layers, it is more necessary to use the same material for all of the resins used, and the strength of the joined parts becomes stronger because the finished molded product is integrated. Depending on the material, different materials may be used.
  • thermoplastic resin layer used in each embodiment may be a composite material such as fiber reinforced plastic reinforced with glass fiber or carbon fiber.
  • bamboo cocoon fiber when manufacturing the bamboo fiber sheet, glass fiber, carbon fiber, or other materials may be used as the bamboo cocoon fiber.
  • Various inorganic materials and organic materials may be added as appropriate to improve mechanical properties such as friction (sliding) properties and wear properties.
  • the bamboo cocoon fiber used when the bamboo fiber sheet is manufactured in each of the above embodiments is either a thread-like one, a bundle of yarn-like ones, or a yarn-like one knitted into a tied shape. Also good.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)

Abstract

A bamboo fiber reinforced plastic formed product which is produced by a method comprising placing bamboo fibers in a lope form prepared by twisting fibers from a bamboo culm into a lope form and/or fibers from a bamboo culm in a mold in a state wherein they are aligned in the length direction, charging a thermosetting resin into said mold, followed by compression molding or the like, or a method comprising putting a bamboo fiber sheet comprising fibers from a bamboo culm between thermoplastic resin layers, placing the resultant product into a mold in a state wherein the surface of the fibers is covered by the thermoplastic resin, followed by compression molding or the like. The above bamboo fiber reinforced plastic formed product is excellent in mechanical characteristics such as flexural strength, tensile strength and impact strength.

Description

明 細 書  Specification
竹繊維強化プラスチック成形品及びその製造方法  Bamboo fiber reinforced plastic molded product and method for producing the same
技術分野  Technical field
[0001] 本発明は、竹の稈の繊維で強化したプラスチック成形品とその製造方法に関する。  The present invention relates to a plastic molded product reinforced with bamboo cocoon fibers and a method for producing the same.
背景技術  Background art
[0002] 竹の稈の繊維を熱可塑性榭脂に混入しペレットを作製したあと、このペレットを使用 し射出成形して製品 (竹繊維強化プラスチック成形品）にしたものがある。  [0002] There are some products in which bamboo cocoon fibers are mixed with thermoplastic resin to produce pellets, and then these pellets are used for injection molding to produce products (bamboo fiber reinforced plastic molded products).
竹は成長が早ぐ伐採しても 2、 3年でもとの状態に復帰するので、資源として限りが ない。また、竹の稈の繊維は、鉄筋の 1. 5倍の強度を持つ。よって、竹の稈の繊維を 混入することにより、プラスチックの強度を向上できると共に、ガラス繊維や炭素繊維 などを混入したプラスチックに比べ安価に製造できる。さらに大量に竹繊維を混入す ると、廃品を焼却でき有害ガスも少ないため、ガラス繊維や炭素繊維で強化したブラ スチックに比べ、環境に対する負荷が低い。  Bamboo will return to its original state after a few years of cutting, so there is no limit to its resources. Bamboo cocoon fibers are 1.5 times stronger than reinforcing bars. Therefore, by mixing bamboo cocoon fiber, the strength of the plastic can be improved, and it can be manufactured at a lower cost than plastics mixed with glass fiber or carbon fiber. In addition, when bamboo fiber is mixed in a large amount, the waste product can be incinerated and there are few harmful gases.
しかし、ペレットを使用した射出成形では、竹の短繊維しか使用できず、短繊維を 得るための竹繊維の微細化処理が煩雑である。また、榭脂に比べ竹繊維の比重が 小であることから、溶融した榭脂の中で竹繊維が浮き上がり、製品化したとき、成形品 の表面に竹の稈の繊維が現れて不均質になり、手触りが荒れて滑らかでなぐ見栄 えも悪いという欠点がある。  However, in the injection molding using pellets, only bamboo short fibers can be used, and the refinement process of bamboo fibers to obtain the short fibers is complicated. In addition, because the specific gravity of bamboo fiber is smaller than that of rosin, the bamboo fiber floats up in the molten rosin and when it is commercialized, bamboo cocoon fibers appear on the surface of the molded product, resulting in non-uniformity. There is a drawback that the touch is rough and smooth and the appearance is poor.
また、ガラス繊維や炭素繊維で強化したプラスチックに比べ曲げ強度などが不充分 である。  In addition, bending strength is insufficient compared to plastics reinforced with glass fiber or carbon fiber.
発明の開示  Disclosure of the invention
発明が解決しょうとする課題  Problems to be solved by the invention
[0003] 本発明は、上記欠点を解消し、曲げ強度、引っ張り強度、衝撃強度などの力学特 性に優れ、しかも見栄えが良い竹繊維強化プラスチック成形品を提供することを目的 とする。 [0003] An object of the present invention is to provide a bamboo fiber reinforced plastic molded article that eliminates the above-mentioned drawbacks, has excellent mechanical properties such as bending strength, tensile strength, and impact strength, and has a good appearance.
課題を解決するための手段  Means for solving the problem
[0004] 上記目的を達成するために本発明者は鋭意研究の結果、竹の稈の繊維を、長さ方 向を揃えた状態で熱硬化性榭脂により成形硬化すると、出来上がった竹繊維強化プ ラスチックの曲げ強度などの力学特性が格段に向上すること、また竹の稈の繊維をシ ート状にし、この竹繊維シートの表面を熱可塑性榭脂で覆った状態で金型に入れた 後、圧縮成形すると、表面が滑らかで見栄えが良くなることなどを知見して本発明に 至った。 [0004] In order to achieve the above object, the present inventor has conducted extensive research and found that the bamboo cocoon fiber has When molding and curing with thermosetting resin in the same direction, the mechanical properties such as bending strength of the finished bamboo fiber reinforced plastic are greatly improved. The present inventors have found that the surface of the bamboo fiber sheet covered with a thermoplastic resin is placed in a mold and then compression-molded and then the surface becomes smooth and good in appearance, leading to the present invention.
すなわち請求項 1の竹繊維強化プラスチック成形品は、竹の稈の繊維を、長さ方向 に揃えた状態で熱硬化性榭脂に入れ成形硬化する。  That is, the bamboo fiber reinforced plastic molded product of claim 1 is molded and cured by placing bamboo cocoon fibers in a thermosetting resin in a state where they are aligned in the length direction.
請求項 2の竹繊維強化プラスチック成形品は、竹の稈の繊維を、長さ方向に揃え束 状にした状態で熱硬化性榭脂に入れ成形硬化する。  The bamboo fiber reinforced plastic molded product according to claim 2 is molded and cured by placing the bamboo cocoon fibers in the thermosetting resin in a state of being bundled in the length direction.
請求項 3の竹繊維強化プラスチック成形品は、竹の稈の繊維を縛状に撚り合わせ た縛状竹繊維を、長さ方向に揃えた状態で熱硬化性榭脂に入れ成形硬化する。 請求項 4の竹繊維強化プラスチック成形品は、竹の稈の繊維を縛状に撚り合わせ た縛状竹繊維及び Z又は竹の稈の繊維を、長さ方向に揃え、  The bamboo fiber reinforced plastic molded product of claim 3 is molded and cured by placing the tie-like bamboo fibers obtained by twisting bamboo cocoon fibers into a tie-like shape in a thermosetting resin in the state of being aligned in the length direction. The bamboo fiber reinforced plastic molded article according to claim 4 is made by aligning a bamboo-shaped bamboo fiber obtained by twisting bamboo cocoon fibers and a Z- or bamboo cocoon fiber in the length direction.
さらに竹の稈の繊維，ガラス繊維及び炭素繊維カゝらなるの群の繊維のうちの少なく ともひとつを方向を揃えない状態で熱硬化性榭脂に入れ成形硬化する。  Further, at least one of the fibers of the bamboo cocoon fiber, glass fiber, and carbon fiber fiber is placed in a thermosetting resin in a state in which the directions are not aligned, and is molded and cured.
請求項 5の竹繊維強化プラスチック成形品は、熱可塑性榭脂層の間に竹繊維シー トを挟み、圧縮成形する。  The bamboo fiber reinforced plastic molded product according to claim 5 is compression-molded with a bamboo fiber sheet sandwiched between thermoplastic resin layers.
請求項 6の竹繊維強化プラスチック成形品は、熱可塑性榭脂層と複数枚の竹繊維 シートを交互に積層し、圧縮成形する。  The bamboo fiber reinforced plastic molded product according to claim 6 is formed by alternately laminating a thermoplastic resin layer and a plurality of bamboo fiber sheets, and compression molding.
請求項 7の製造方法は、竹の稈の繊維を縛状に撚り合わせた縛状竹繊維及び Z 又は竹の稈の繊維を、長さ方向に揃えた状態で金型内に入れ、  The manufacturing method according to claim 7 is a method of placing a bamboo-like bamboo fiber obtained by twisting bamboo cocoon fibers and a fiber of Z or bamboo cocoon in a mold in a state of being aligned in the length direction,
次に当該金型内に熱硬化性榭脂を入れた後、圧縮加熱成形を行うことを特徴とす る。  Next, the thermosetting resin is put into the mold, and then compression heating molding is performed.
請求項 8の製造方法は、竹の稈の繊維を縛状に撚り合わせた縛状竹繊維及び Z 又は竹の稈の繊維を、長さ方向に揃えた状態で熱硬化性榭脂を含浸させた後、金 型内に入れ、圧縮加熱成形を行うことを特徴とする。  The manufacturing method of claim 8 comprises impregnating a thermosetting resin in a state in which the tie-like bamboo fibers obtained by twisting bamboo cocoon fibers and Z or bamboo cocoon fibers are aligned in the length direction. After that, it is put into a mold and subjected to compression heating molding.
請求項 9の製造方法は、竹の稈の繊維を縛状に撚り合わせた縛状竹繊維及び Z 又は竹の稈の繊維を、長さ方向に揃えた状態で熱硬化性榭脂を塗布させた後、金 型内に入れ、圧縮加熱成形を行うことを特徴とする。 The manufacturing method according to claim 9 is a method in which a thermosetting resin is applied in a state in which the tie-like bamboo fibers obtained by twisting the bamboo cocoon fibers and the Z or bamboo cocoon fibers are aligned in the length direction. Then gold It is characterized by being put in a mold and subjected to compression heating molding.
請求項 10の製造方法が、上記請求項 8又は 9の製造方法で、熱硬化性榭脂を含 浸又は塗布したものを金型内に入れた後、さらに金型内に熱硬化性榭脂を入れるこ とを特徴とする。  The manufacturing method according to claim 10 is the manufacturing method according to claim 8 or 9, wherein a thermosetting resin impregnated or coated is placed in a mold, and further, the thermosetting resin in the mold. It is characterized by putting
請求項 11の製造方法は、熱可塑性榭脂層の間に、竹の稈の繊維からなる竹繊維 シートを挟み、表面を熱可塑性榭脂層で覆った状態で金型に入れ、圧縮成形するこ とを特徴とする。  In the production method of claim 11, a bamboo fiber sheet made of bamboo cocoon fiber is sandwiched between thermoplastic resin layers, and the surface is covered with a thermoplastic resin layer and placed in a mold, and then compression molded. It is characterized by this.
請求項 12の製造方法は、熱可塑性榭脂層と複数枚の竹の稈の繊維からなる竹繊 維シートを交互に積層し、表面を熱可塑性榭脂層で覆った状態で金型に入れ、圧縮 成形することを特徴とする。  The manufacturing method according to claim 12 is a method in which a thermoplastic fiber layer and bamboo fiber sheets made of a plurality of bamboo cocoon fibers are alternately laminated, and the surface is covered with a thermoplastic resin layer and placed in a mold. It is characterized by compression molding.
請求項 13の製造方法は、竹の稈の繊維からなる竹繊維シートの上に熱可塑性榭 脂層を重ね、片面に竹繊維シートが露出した状態で金型に入れ、圧縮成形すること を特徴とする。  The manufacturing method of claim 13 is characterized in that a thermoplastic resin layer is layered on a bamboo fiber sheet made of bamboo cocoon fibers, and the bamboo fiber sheet is exposed on one side and placed in a mold, followed by compression molding. And
請求項 14の製造方法は、竹の稈の繊維からなる竹繊維シートの上に熱可塑性榭 脂層を介して順次複数枚の竹繊維シートを重ね、片面に竹繊維シートが露出した状 態で金型に入れ、圧縮成形することを特徴とする。  In the manufacturing method of claim 14, a plurality of bamboo fiber sheets are sequentially stacked on a bamboo fiber sheet made of bamboo cocoon fibers via a thermoplastic resin layer, and the bamboo fiber sheet is exposed on one side. It is characterized by being put into a mold and compression molded.
請求項 15の製造方法は、上記請求項 7から 14のいずれかの製造方法で使用する 竹の稈の繊維を、竹の稈を高圧釜で煮沸して竹のへミセルロース及びリグ-ンを分 解後、解繊して繊維化することを特徴とする。  In the manufacturing method of claim 15, the bamboo cocoon fiber used in the manufacturing method of any one of claims 7 to 14 is boiled in a high-pressure kettle, and bamboo hemicellulose and ligne are obtained. It is characterized by fibrillation and fiberization after disassembly.
[0006] 熱硬化性榭脂及び熱可塑性榭脂は、公知のいずれであってもよぐ成形品の使用 目的に応じ適宜選択する。特に生分解プラスチックを使用すると、環境に対する負荷 が低くなるので好ましい。 [0006] The thermosetting resin and the thermoplastic resin are appropriately selected according to the purpose of use of the molded product, which may be any known one. In particular, the use of biodegradable plastic is preferable because it reduces the environmental burden.
発明の効果  The invention's effect
[0007] 本発明の竹繊維強化プラスチック成形品は、竹の稈の繊維を混入して 、な ヽものと 比べ、曲げ強度が約 2〜5倍向上し、ガラス繊維や炭素繊維で強化したプラスチック 成形品と遜色ない。  [0007] The bamboo fiber reinforced plastic molded product of the present invention is a plastic reinforced with glass fiber or carbon fiber, which has a bending strength improved by about 2 to 5 times compared to that of a bamboo shoot, mixed with bamboo cocoon fiber. Not inferior to molded products.
また、使用する竹の稈の繊維がガラス繊維や炭素繊維に比べ安価であり、繊維強 化プラスチックを安価に製造できる。また、環境に対する負荷が低いというガラス繊維 や炭素繊維にな ヽ利点を有する。 Also, bamboo cocoon fibers used are cheaper than glass fibers and carbon fibers, and fiber-reinforced plastics can be manufactured at low cost. Also, glass fiber has a low environmental impact And has advantages over carbon fiber.
さらに、請求項 3, 4, 7〜9の発明のように、竹の稈の繊維を縛状に撚つて使用する と、並べて金型内に入れやすぐまた所望の長さに切断し使用できる。  Furthermore, as in the inventions of claims 3, 4, 7 to 9, when bamboo cocoon fibers are twisted in a tied shape, they can be placed side by side in a mold or immediately cut to a desired length for use. .
また、請求項 5, 6, 11〜14の発明では、表面が滑らかで、見栄えの良い成形品に なる。  Further, according to the inventions of claims 5, 6, 11 to 14, the molded article has a smooth surface and a good appearance.
発明を実施するための最良の形態  BEST MODE FOR CARRYING OUT THE INVENTION
[0008] 以下本発明の第 1実施の形態について説明する。 [0008] A first embodiment of the present invention will be described below.
先ず、本発明に使用する竹の稈の繊維は、以下のようにして製造する。真竹、孟宗 竹などの竹を伐採し、葉を落とした後の稈を、長さ数 cm〜2m程度に切断して竹材に する。  First, the bamboo cocoon fiber used in the present invention is manufactured as follows. Cut bamboo, such as bamboo and bamboo shoots, and cut the leaves after dropping the leaves into several centimeters to 2 meters to make bamboo.
次に、この竹材を高圧釜内に水又は湯と共に入れ、水又は湯の温度を上げると共 に釜内の圧力を上げて竹材を高温高圧下で煮沸する。この際に、適宜減圧して水又 は湯を加え、その後水又は湯の温度を上げると共に釜内の圧力を上げてもよい。 この後、高圧釜より竹材を取出し、解繊機を使用して解繊処理を行い繊維にする。 あるいは、爆砕装置に入れて、当該爆砕装置内を高圧にすると共に、高温（165〜 200°C)の水蒸気を装置内に導入し、その後、一気に減圧し、これを数回〜十数回 繰り返し、その後解繊機を使用して解繊処理を行 ヽ繊維にしてもょ ヽ。  Next, the bamboo material is put in a high-pressure kettle together with water or hot water, and when the temperature of the water or hot water is raised, the pressure in the kettle is raised and the bamboo material is boiled under high temperature and high pressure. At this time, the pressure in the kettle may be increased at the same time as the temperature of the water or hot water is raised after the pressure is appropriately reduced and water or hot water is added. Thereafter, the bamboo material is taken out from the high-pressure kettle, and is defibrated using a defibrating machine to form fibers. Or put it in a blasting device, make the inside of the blasting device high pressure, introduce high-temperature (165-200 ° C) water vapor into the device, then depressurize all at once, and repeat this several to tens of times Then, use a defibrating machine to perform the defibrating process.
[0009] 次に、製造した竹の稈の繊維を所望の長さに切断し、方向を揃えて金型内に入れ る。あるいは、製造した竹の稈の繊維を所望の長さに切断したものを束にして金型内 に入れる。 [0009] Next, the bamboo cocoon fiber produced is cut to a desired length, and the direction is aligned and placed in a mold. Alternatively, the bamboo bamboo fibers produced are cut into a desired length and bundled into a mold.
その後、金型内に熱硬化性榭脂を投入する。  Thereafter, a thermosetting resin is put into the mold.
熱硬化性榭脂は、粉末状、顆粒状、液状のいずれであってもよぐ前記投入には、 粉末状又は顆粒状のものを入れること及び液状のものを注ぎ込むことの両方を含む ものとする。  The thermosetting rosin may be in the form of powder, granule, or liquid, and the input includes both adding powder or granule and pouring liquid. To do.
熱硬化性榭脂は、フエノール榭脂、エポキシ榭脂、不飽和ポリエステル榭脂、ウレタ ン榭脂、メラミン榭脂、ユリャ榭脂など公知のもののいずれであってもよい。  The thermosetting resin may be any of known resins such as phenol resin, epoxy resin, unsaturated polyester resin, urea resin, melamine resin, and urea resin.
そして、圧縮加熱成形により板材など所望の形状の竹繊維強化プラスチックを得る 竹の稈の繊維は、竹繊維強化プラスチック中に好ましくは重量比で 10〜75%入れ るのであるが、重量比で 1〜90%であれば、重量比が 10〜75%のものと比べてやや 劣るものの曲げ強度などの力学特性が向上するという効果が得られる。 Then, a bamboo fiber reinforced plastic having a desired shape such as a plate material is obtained by compression heating molding. Bamboo cocoon fiber is preferably 10-75% by weight in bamboo fiber reinforced plastic, but if it is 1-90% by weight, it is 10-75% by weight. Although it is somewhat inferior, the mechanical properties such as bending strength can be improved.
[0010] 得られた竹繊維強化プラスチックは、竹繊維を混入して ヽな 、プラスチックと比較し 、竹繊維の混入比率により若干変わるが、混入した竹繊維の長さ方向と直交する方 向の曲げ強度が約 2〜5倍向上する。 [0010] The obtained bamboo fiber reinforced plastic is mixed with bamboo fiber. Compared with plastic, the bamboo fiber reinforced plastic is slightly different depending on the mixing ratio of bamboo fiber, but in the direction perpendicular to the length direction of the mixed bamboo fiber. Bending strength is improved about 2 to 5 times.
梁状の部品などの、曲げ強度を重視するものに使用するとよい。  It is recommended to use it for those that place great importance on bending strength, such as beam-shaped parts.
[0011] 次に第 2の実施形態について説明する。 [0011] Next, a second embodiment will be described.
前記第 1実施形態と比べ、竹の稈の繊維の製造方法は同じだが、その後の製造方 法が異なる。  Compared to the first embodiment, the bamboo cocoon fiber manufacturing method is the same, but the subsequent manufacturing method is different.
すなわち、製造した竹の稈の繊維を複数本撚り合わせて縛状にし、この縛状の竹 繊維を適当な長さに切断し、方向を揃えて金型内に入れる。これと共に、縛状でない 竹の稈の繊維を、方向を揃えず前記金型内に入れ、この金型内に熱硬化性榭脂を 投入する。  That is, a plurality of bamboo cocoon fibers produced are twisted together to form a tie, and the tie-like bamboo fibers are cut to an appropriate length and aligned in a mold. At the same time, bamboo cocoon fibers that are not bound are put into the mold without aligning the direction, and thermosetting resin is put into the mold.
そして、圧縮加熱成形により所望の形状の竹繊維強化プラスチックを得る。  And the bamboo fiber reinforced plastic of a desired shape is obtained by compression thermoforming.
前記第 1実施形態のものと比べあらゆる方向での曲げ強度が向上する。  Bending strength in all directions is improved as compared with the first embodiment.
[0012] 次に第 3の実施形態について説明する。 [0012] Next, a third embodiment will be described.
前記各実施形態と比べ、竹の稈の繊維の製造方法は同じだが、その後の製造方 法が異なる。  Compared to each of the above embodiments, the manufacturing method of the bamboo cocoon fiber is the same, but the subsequent manufacturing method is different.
竹の稈の繊維をそのまま、あるいは複数本撚り合わせて縛状にし、長さ方向に揃え た状態で熱硬化性榭脂を含浸又は塗布してから金型内に入れる。この後、適宜熱硬 化性榭脂を金型内に投入し、そして、圧縮加熱成形により所望の形状の竹繊維強化 プラスチックを得る。  Bamboo cocoon fiber is twisted as it is or by twisting a plurality of fibers, impregnated or coated with thermosetting resin in the lengthwise direction, and then placed in the mold. Thereafter, a thermosetting resin is appropriately put into the mold, and a bamboo fiber reinforced plastic having a desired shape is obtained by compression thermoforming.
前記各実施形態と比べ、金型内に熱硬化性榭脂を投入することに起因する竹の稈 の繊維又は縛状の竹繊維の方向の乱れが生じ難ぐ製造が容易になる。  Compared with each of the above embodiments, the production of the bamboo cocoon fiber or the tie-like bamboo fiber caused by disturbance of the direction due to the introduction of the thermosetting resin into the mold is facilitated.
[0013] 次に第 4の実施形態について説明する。 Next, a fourth embodiment will be described.
前記各実施形態と、竹の稈の繊維の製造方法は同じで、その後の製造方法が異な る。 竹の稈の繊維を、他の繊維製の織布と同様に織編成して、竹繊維シートを製造す る。あるいは他の繊維製の不織布と同様にフリース形成後、繊維間を結合させて、竹 繊維シートを製造する。 The method of manufacturing the bamboo cocoon fibers is the same as in the above embodiments, and the subsequent manufacturing method is different. Bamboo cocoon fibers are woven and knitted in the same way as other fiber woven fabrics to produce bamboo fiber sheets. Alternatively, a bamboo fiber sheet is produced by forming the fleece in the same manner as other non-woven fabrics and then bonding the fibers together.
前記織布状の竹繊維シートは、外観よりも強度を重視し、簡便に製造するという点 から、通常平織りにするが、その他の公知の織り方で織編成してもよぐこれを除外す るものではない。  The woven bamboo fiber sheet is usually plain weave because it emphasizes strength over appearance and is easy to manufacture. However, this may be knitted with other known weaving methods. It is not something.
[0014] この竹繊維シートを、熱可塑性榭脂層の間に挟み、金型に入れ圧縮成形 (500〜2 OOOkgZcm2に加圧)して全体を一体化する。 [0014] The bamboo fiber sheet is sandwiched between thermoplastic resin layers, placed in a mold, and compression molded (pressurized to 500-2 OOOkgZcm 2 ) to integrate the whole.
前記熱可塑性榭脂層は、約 100〜280°Cに加温すると、竹繊維の変性がなぐ圧 縮成形により熱可塑性榭脂層と竹繊維シートを一体化できる。  When the thermoplastic resin layer is heated to about 100 to 280 ° C., the thermoplastic resin layer and the bamboo fiber sheet can be integrated by compression molding without modification of the bamboo fiber.
熱可塑性榭脂層は、竹繊維シートの表面を覆うものの総称であり、板材、粉末、ぺ レットの 、ずれであってもよ!/ヽ。  The thermoplastic resin layer is a general term for what covers the surface of a bamboo fiber sheet, and it may be a deviation of a plate, powder or pellet! / !.
[0015] 得られた竹繊維強化プラスチック成形品は、竹繊維シートの周囲を熱可塑性榭脂 層が被覆して、表面が滑らかで、見栄えの良いものになる。また、曲げ強度、引っ張り 強度、衝撃強度が、同じ厚さの熱可塑性榭脂製の成形品より向上する。 [0015] The obtained bamboo fiber reinforced plastic molded article is coated with a thermoplastic resin layer around the bamboo fiber sheet and has a smooth surface and a good appearance. In addition, bending strength, tensile strength, and impact strength are improved compared to molded products made of thermoplastic resin having the same thickness.
また、熱可塑性榭脂層と複数枚の竹繊維シートを交互に積層すると、曲げ強度、引 つ張り強度、衝撃強度が、熱可塑性榭脂層に竹繊維シートを 1枚だけ挟んだものより さらに向上する。  In addition, when thermoplastic resin layers and multiple bamboo fiber sheets are alternately laminated, the bending strength, tensile strength, and impact strength are even higher than those with only one bamboo fiber sheet sandwiched between thermoplastic resin layers. improves.
[0016] 次に第 5の実施形態について説明する。 [0016] Next, a fifth embodiment will be described.
前記第 4実施形態との違いは、竹繊維シートの片面のみ熱可塑性榭脂で被覆する ことである。  The difference from the fourth embodiment is that only one surface of the bamboo fiber sheet is coated with thermoplastic resin.
すなわち、竹繊維シートの上に熱可塑性榭脂層を重ね、片面に竹繊維シートが露 出した状態で金型に入れ、圧縮成形する。必要に応じ竹繊維シートを重ね、さらにそ の上に熱可塑性榭脂を投入する工程を、 1回以上繰返してもよい。  That is, a thermoplastic resin layer is stacked on a bamboo fiber sheet, and the bamboo fiber sheet is exposed on one side and placed in a mold and compression molded. If necessary, the process of stacking bamboo fiber sheets and adding thermoplastic resin onto them may be repeated one or more times.
底面が隠れてしまうような形で使用する成形品の場合は、上記製造方法により安価 に製造できる。  In the case of a molded product used in such a way that the bottom surface is hidden, it can be manufactured at low cost by the above manufacturing method.
[0017] 第 4, 5の実施形態のように製造した竹繊維強化プラスチック成形品は、自動車の バンパーなどの表面の滑らかさと、曲げ強度、引っ張り強度、衝撃強度などを要求さ れるものに使用するとよい。 [0017] Bamboo fiber reinforced plastic molded products produced as in the fourth and fifth embodiments require smoothness of the surface of a bumper of an automobile, bending strength, tensile strength, impact strength, and the like. It is good to use it for what.
なお、前記各実施形態で成形品を製造する際に、表面側を投入する榭脂と同材質 の榭脂製のシートで覆い成形すると、万一竹繊維が榭脂液中を浮き上がっても表面 に露出しない。よって、成形品から竹繊維の端が露出して人体を刺激することがない また、前記各実施形態で竹繊維シートは、熱可塑性榭脂層に単に重ねているが、 ノインダ一でコーティングした竹繊維を使用して竹繊維シートを製造し、これを熱可 塑性榭脂製板材の上に位置決めした後、圧縮成形してもよ!ヽ。  In addition, when manufacturing the molded product in each of the above-described embodiments, if the surface side is covered and molded with a sheet made of the same material as the resin used to add the surface, even if bamboo fiber floats in the resin liquid, Not exposed to. Therefore, the end of the bamboo fiber is not exposed from the molded product and does not irritate the human body. In each of the above embodiments, the bamboo fiber sheet is simply overlaid on the thermoplastic resin layer, but bamboo coated with noinda Bamboo fiber sheets can be produced using fibers, positioned on a thermoplastic resin board, and then compression molded.
また、前記各実施形態のうちで、熱可塑性榭脂層が複数あるものでは、使用する榭 脂をすベて同じ材料にするほうが、完成した成形品が一体となり接合面も強固になる 力 必要に応じて異なる材料にしてもよい。  In addition, in the above embodiments, in the case where there are a plurality of thermoplastic resin layers, it is more necessary to use the same material for all of the resins used, and the strength of the joined parts becomes stronger because the finished molded product is integrated. Depending on the material, different materials may be used.
さら〖こは、各実施形態において使用する熱可塑性榭脂層は、ガラス繊維や炭素繊 維で強化した繊維強化プラスチックなどの複合材であってもよい。  Furthermore, the thermoplastic resin layer used in each embodiment may be a composite material such as fiber reinforced plastic reinforced with glass fiber or carbon fiber.
また、前記各実施形態と比べて廃棄の容易さという点でやや劣ることになるが、前 記竹繊維シートを製造する際に、竹の稈の繊維にガラス繊維、炭素繊維、あるいはそ の他の各種無機材料、及び有機材料を適宜加え、摩擦 (摺動)特性や磨耗特性等の 力学特性を向上させてもよい。  Further, although it is somewhat inferior in terms of ease of disposal as compared to the above embodiments, when manufacturing the bamboo fiber sheet, glass fiber, carbon fiber, or other materials may be used as the bamboo cocoon fiber. Various inorganic materials and organic materials may be added as appropriate to improve mechanical properties such as friction (sliding) properties and wear properties.
また、前記各実施形態で竹繊維シートを製造する際に使用する竹の稈の繊維は、 糸状のもの、糸状のものを束ねたもの、糸状のものを縛状に編んだもののいずれであ つてもよい。  In addition, the bamboo cocoon fiber used when the bamboo fiber sheet is manufactured in each of the above embodiments is either a thread-like one, a bundle of yarn-like ones, or a yarn-like one knitted into a tied shape. Also good.

Claims

請求の範囲 The scope of the claims
[1] 竹の稈の繊維を、長さ方向に揃えた状態で熱硬化性榭脂に入れ成形硬化することを 特徴とする竹繊維強化プラスチック成形品。  [1] A bamboo fiber reinforced plastic molded product, characterized in that bamboo cocoon fibers are placed in a thermosetting resin in the lengthwise direction and cured.
[2] 竹の稈の繊維を、長さ方向に揃え束状にした状態で熱硬化性榭脂に入れ成形硬化 することを特徴とする竹繊維強化プラスチック成形品。  [2] A bamboo fiber reinforced plastic molded product, characterized in that bamboo cocoon fibers are aligned and bundled in the length direction into a thermosetting resin and molded and cured.
[3] 竹の稈の繊維を縛状に撚り合わせた縛状竹繊維を、長さ方向に揃えた状態で熱硬 化性榭脂に入れ成形硬化することを特徴とする竹繊維強化プラスチック成形品。 [3] Bamboo fiber reinforced plastic molding characterized in that tied bamboo fiber twisted from bamboo cocoon fibers is tied into a thermosetting resin in the lengthwise direction and cured. Goods.
[4] 竹の稈の繊維を縛状に撚り合わせた縛状竹繊維及び Z又は竹の稈の繊維を、長さ 方向に ¾え、 [4] Obtain a tie-like bamboo fiber obtained by twisting bamboo cocoon fibers into a tie and Z or bamboo cocoon fibers in the length direction.
さらに竹の稈の繊維，ガラス繊維及び炭素繊維カゝらなるの群の繊維のうちの少なく ともひとつを方向を揃えない状態で熱硬化性榭脂に入れ成形硬化することを特徴と する竹繊維強化プラスチック成形品。  Bamboo fiber characterized by molding and curing at least one of the fibers of the group consisting of bamboo cocoon fiber, glass fiber and carbon fiber in a thermosetting resin in a state where the directions are not aligned. Reinforced plastic molded product.
[5] 熱可塑性榭脂層の間に竹繊維シートを挟み、圧縮成形することを特徴とする竹繊維 強化プラスチック成形品。 [5] A bamboo fiber reinforced plastic molded product characterized in that a bamboo fiber sheet is sandwiched between thermoplastic resin layers and compression molded.
[6] 熱可塑性榭脂層と複数枚の竹繊維シートを交互に積層し、圧縮成形することを特徴 とする竹繊維強化プラスチック成形品。 [6] A bamboo fiber reinforced plastic molded product, characterized in that a thermoplastic resin layer and a plurality of bamboo fiber sheets are alternately laminated and compression molded.
[7] 竹の稈の繊維を縛状に撚り合わせた縛状竹繊維及び Z又は竹の稈の繊維を、長さ 方向に揃えた状態で金型内に入れ、 [7] Put the bamboo bamboo fibers twisted in the shape of a bamboo tie and the Z or bamboo cocoon fibers into the mold in a state of being aligned in the length direction,
次に当該金型内に熱硬化性榭脂を投入した後、圧縮加熱成形を行うことを特徴と する竹繊維強化プラスチックの製造方法。  Next, a method for producing a bamboo fiber reinforced plastic is characterized in that after thermosetting resin is put into the mold, compression heating molding is performed.
[8] 竹の稈の繊維を縛状に撚り合わせた縛状竹繊維及び Z又は竹の稈の繊維を、長さ 方向に揃えた状態で熱硬化性榭脂を含浸させた後、金型内に入れ、圧縮加熱成形 を行うことを特徴とする竹繊維強化プラスチックの製造方法。 [8] After impregnating the bamboo cocoon fiber in the length direction with the tie-like bamboo fiber twisted in bamboo tie fiber and Z or bamboo cocoon fiber in the length direction, mold A method for producing bamboo fiber reinforced plastic, which is put into a container and subjected to compression heating molding.
[9] 竹の稈の繊維を縛状に撚り合わせた縛状竹繊維及び Z又は竹の稈の繊維を、長さ 方向に揃えた状態で熱硬化性榭脂を塗布させた後、金型内に入れ、圧縮加熱成形 を行うことを特徴とする竹繊維強化プラスチックの製造方法。 [9] After the thermosetting resin is applied in a state in which the tie-like bamboo fibers twisted in a tie-like form and Z or bamboo cocoon fibers are aligned in the length direction, the mold is A method for producing bamboo fiber reinforced plastic, which is put into a container and subjected to compression heating molding.
[10] 前記金型内に入れた後、さらに金型内に熱硬化性榭脂を投入し、その後圧縮加熱 成形を行うことを特徴とする請求項 8又は 9に記載の竹繊維強化プラスチックの製造 方法。 [10] The bamboo fiber reinforced plastic according to claim 8 or 9, wherein after being put into the mold, a thermosetting resin is further put into the mold, and then compression heating molding is performed. Manufacturing Method.
[11] 熱可塑性榭脂層の間に、竹の稈の繊維カゝらなる竹繊維シートを挟み、表面を熱可塑 性榭脂層で覆った状態で金型に入れ、  [11] A bamboo fiber sheet made of bamboo cocoon fiber is sandwiched between thermoplastic resin layers, and the surface is covered with a thermoplastic resin layer and placed in a mold.
圧縮成形することを特徴とする竹繊維強化プラスチック成形品の製造方法。  A method for producing a bamboo fiber reinforced plastic molded product, characterized by compression molding.
[12] 熱可塑性榭脂層と複数枚の竹の稈の繊維カゝらなる竹繊維シートを交互に積層し、表 面を熱可塑性榭脂層で覆った状態で金型に入れ、  [12] Bamboo fiber sheets consisting of a thermoplastic resin layer and a plurality of bamboo cocoon fiber layers are alternately laminated, and the surface is covered with a thermoplastic resin layer and placed in a mold.
圧縮成形することを特徴とする竹繊維強化プラスチック成形品の製造方法。  A method for producing a bamboo fiber reinforced plastic molded product, characterized by compression molding.
[13] 竹の稈の繊維からなる竹繊維シートの上に熱可塑性榭脂層を重ね、片面に竹繊維 シートが露出した状態で金型に入れ、 [13] A thermoplastic fiber layer is layered on a bamboo fiber sheet made of bamboo cocoon fibers, and the bamboo fiber sheet is exposed on one side and placed in a mold.
圧縮成形することを特徴とする竹繊維強化プラスチック成形品の製造方法。  A method for producing a bamboo fiber reinforced plastic molded product, characterized by compression molding.
[14] 竹の稈の繊維カゝらなる竹繊維シートの上に熱可塑性榭脂層を介して順次複数枚の 竹繊維シートを重ね、片面に竹繊維シートが露出した状態で金型に入れ、 [14] A plurality of bamboo fiber sheets are sequentially stacked on a bamboo fiber sheet made of bamboo cocoon fiber via a thermoplastic resin layer, and placed in a mold with the bamboo fiber sheet exposed on one side. ,
圧縮成形することを特徴とする竹繊維強化プラスチック成形品の製造方法。  A method for producing a bamboo fiber reinforced plastic molded product, characterized by compression molding.
[15] 前記竹の稈の繊維は、竹の稈を高圧釜で煮沸して竹のへミセルロース及びリグニン を分解後、解繊して繊維化することを特徴とする請求項 7乃至 14のいずれか 1項に 記載の竹繊維強化プラスチックの製造方法。 15. The fiber of bamboo shoots according to claim 7, wherein the bamboo cocoon fibers are boiled in a high-pressure kettle to decompose bamboo hemicellulose and lignin, and then fibrillated to form fibers. The method for producing a bamboo fiber reinforced plastic according to any one of the preceding items.
PCT/JP2005/021546 2004-11-30 2005-11-24 Bamboo fiber reinforced plastic formed article and method for production thereof WO2006059526A1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP2004346555A JP2006150819A (en) 2004-11-30 2004-11-30 Bamboo fiber reinforced plastic and its manufacturing process
JP2004-346555 2004-11-30
JP2004-371230 2004-12-22
JP2004371230A JP2006176642A (en) 2004-12-22 2004-12-22 Method for producing bamboo fiber-reinforced plastic molded article

Publications (1)

Publication Number Publication Date
WO2006059526A1 true WO2006059526A1 (en) 2006-06-08

Family

ID=36564960

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2005/021546 WO2006059526A1 (en) 2004-11-30 2005-11-24 Bamboo fiber reinforced plastic formed article and method for production thereof

Country Status (1)

Country Link
WO (1) WO2006059526A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006226229A (en) * 2005-02-18 2006-08-31 Yamato Giken Kk Synthetic resin-made casing for vehicle and method of manufacturing the same
CN102294714A (en) * 2011-08-30 2011-12-28 安庆市永林竹塑板制造有限公司 Composite bamboo plastic board
CN109054285A (en) * 2018-06-26 2018-12-21 桂林电子科技大学 A kind of bamboo fibre cooperates with the POM composite material and preparation method of raising bending strength with bamboo silk
CN110144648A (en) * 2019-05-14 2019-08-20 张毅 The production technology of the compound rope yarn of bamboo fiber reinforcement

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06344361A (en) * 1993-06-07 1994-12-20 Ask:Kk Manufacture of large-shaped resin-molding
JPH11138515A (en) * 1997-11-12 1999-05-25 Hideto Hashimoto Bamboo fiber sheet and molded material of bamboo fiber sheet
JP2000160034A (en) * 1998-11-25 2000-06-13 Nippon Shokubai Co Ltd Biodegradable composite material
JP2002068815A (en) * 2000-08-31 2002-03-08 Nichiha Corp Woody cement board and its manufacturing method
JP2002127114A (en) * 2000-10-26 2002-05-08 Nichiha Corp Fiber-molded board and method for manufacturing the same
JP2002146219A (en) * 2000-11-07 2002-05-22 Hitoshi Takagi Biodegradable composite material and manufacturing method therefor
JP2002309007A (en) * 2001-04-10 2002-10-23 Mitsubishi Rayon Co Ltd Fiber-reinforced thermoplastic resin molded product and method for producing the same
JP2003039407A (en) * 2001-08-03 2003-02-13 Takekkusu:Kk Bamboo made plywood and decorative laminate
JP2003039462A (en) * 2001-07-26 2003-02-13 Hiroshi Mitsuboshi Manufacturing method for molded article using vegetable fibers
JP2003049001A (en) * 2001-08-02 2003-02-21 Hitachi Chem Co Ltd Sheet molding compound and molded product using the same

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06344361A (en) * 1993-06-07 1994-12-20 Ask:Kk Manufacture of large-shaped resin-molding
JPH11138515A (en) * 1997-11-12 1999-05-25 Hideto Hashimoto Bamboo fiber sheet and molded material of bamboo fiber sheet
JP2000160034A (en) * 1998-11-25 2000-06-13 Nippon Shokubai Co Ltd Biodegradable composite material
JP2002068815A (en) * 2000-08-31 2002-03-08 Nichiha Corp Woody cement board and its manufacturing method
JP2002127114A (en) * 2000-10-26 2002-05-08 Nichiha Corp Fiber-molded board and method for manufacturing the same
JP2002146219A (en) * 2000-11-07 2002-05-22 Hitoshi Takagi Biodegradable composite material and manufacturing method therefor
JP2002309007A (en) * 2001-04-10 2002-10-23 Mitsubishi Rayon Co Ltd Fiber-reinforced thermoplastic resin molded product and method for producing the same
JP2003039462A (en) * 2001-07-26 2003-02-13 Hiroshi Mitsuboshi Manufacturing method for molded article using vegetable fibers
JP2003049001A (en) * 2001-08-02 2003-02-21 Hitachi Chem Co Ltd Sheet molding compound and molded product using the same
JP2003039407A (en) * 2001-08-03 2003-02-13 Takekkusu:Kk Bamboo made plywood and decorative laminate

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006226229A (en) * 2005-02-18 2006-08-31 Yamato Giken Kk Synthetic resin-made casing for vehicle and method of manufacturing the same
CN102294714A (en) * 2011-08-30 2011-12-28 安庆市永林竹塑板制造有限公司 Composite bamboo plastic board
CN109054285A (en) * 2018-06-26 2018-12-21 桂林电子科技大学 A kind of bamboo fibre cooperates with the POM composite material and preparation method of raising bending strength with bamboo silk
CN110144648A (en) * 2019-05-14 2019-08-20 张毅 The production technology of the compound rope yarn of bamboo fiber reinforcement

Similar Documents

Publication Publication Date Title
US10364368B2 (en) Articles including high melt flow index resins
JP6571004B2 (en) Articles containing untwisted fibers and methods of use thereof
CN103317801B (en) A kind of Blend fiber plate and preparation method thereof
Xiao et al. Hybrid laminated composites molded by spray lay-up process
JP2001064406A (en) Preform for fiber-reinforced preform and fiber- reinforced composite material using the same and production thereof
JP6801321B2 (en) Laminated base material for rib molding
WO2006059526A1 (en) Bamboo fiber reinforced plastic formed article and method for production thereof
WO2020118299A1 (en) Composite laminate resin and fiberglass structure
CA2407880A1 (en) Process to manufacture high impact natural composites
WO2008116466A2 (en) Compressed biocomposite material, method for the production of such material and products obtained when using the material
MXPA04008335A (en) Mat made from natural fibres and glass.
WO2004030906A1 (en) Composite materials
Midani et al. Green, natural fibre and hybrid composites
CN106915002A (en) A kind of method that unidirectional prepreg tape sewing molding prepares composite board
JP2006150819A (en) Bamboo fiber reinforced plastic and its manufacturing process
JP2002120315A (en) Fiber reinforced plastic molded article having three- layer structure, and its manufacturing method
JP5280260B2 (en) Fiber molded body
KR20080056952A (en) Formation method for fiber reinforced plastic having a complicated shape
WO2020264492A1 (en) Composite laminate resin and fiberglass structure
CN115503301A (en) Natural fiber reinforced thermoplastic composite material and preparation method thereof
Jejaw Analysis of Flexural Strength of Hybrid Composite (Jute/Sisal Hybrid Polyester Composite)
CN203818589U (en) Reinforced sheet, plastic sheet comprising same and used for moulding, and assembly of plastic sheet
JP5771874B2 (en) Fiber reinforced composite using sugarcane bagasse fiber
Newman Development of non-wood natural-fibre composites
JP2007530810A (en) Reinforcing materials, reinforcing laminates, and composite materials having these

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BW BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE EG ES FI GB GD GE GH GM HR HU ID IL IN IS KE KG KM KN KP KR KZ LC LK LR LS LT LU LV LY MA MD MG MK MN MW MX MZ NA NG NI NO NZ OM PG PH PL PT RO RU SC SD SE SG SK SL SM SY TJ TM TN TR TT TZ UA UG US UZ VC VN YU ZA ZM ZW

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): BW GH GM KE LS MW MZ NA SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LT LU LV MC NL PL PT RO SE SI SK TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG

121 Ep: the epo has been informed by wipo that ep was designated in this application
NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 05809576

Country of ref document: EP

Kind code of ref document: A1

WWW Wipo information: withdrawn in national office

Ref document number: 5809576

Country of ref document: EP