JP2001220517A - Organic fiber-resin composition and use thereof - Google Patents

Organic fiber-resin composition and use thereof

Info

Publication number
JP2001220517A
JP2001220517A JP2000362194A JP2000362194A JP2001220517A JP 2001220517 A JP2001220517 A JP 2001220517A JP 2000362194 A JP2000362194 A JP 2000362194A JP 2000362194 A JP2000362194 A JP 2000362194A JP 2001220517 A JP2001220517 A JP 2001220517A
Authority
JP
Japan
Prior art keywords
fiber
organic fiber
organic
resin composition
resin
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
JP2000362194A
Other languages
Japanese (ja)
Inventor
Masaru Nakano
中野  勝
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toyo Ink Mfg Co Ltd
Original Assignee
Toyo Ink Mfg 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
Application filed by Toyo Ink Mfg Co Ltd filed Critical Toyo Ink Mfg Co Ltd
Priority to JP2000362194A priority Critical patent/JP2001220517A/en
Publication of JP2001220517A publication Critical patent/JP2001220517A/en
Pending legal-status Critical Current

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  • Reinforced Plastic Materials (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

PROBLEM TO BE SOLVED: To obtain an organic fiber-resin molded article having high mechanical properties. SOLUTION: This composition is prepared by covering organic fiber bundles with a thermoplastic resin (A), the content of the fiber being 10-90 wt.%.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【発明の属する技術分野】本発明は、有機繊維を補強材
として用いた有機繊維樹脂組成物(コンパウンド及びマ
スターバッチ)及びそれを用いて成る成形品に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an organic fiber resin composition (compound and masterbatch) using an organic fiber as a reinforcing material, and a molded article using the same.

【0002】[0002]

【従来の技術】有機繊維は、無機繊維よりも靱性や可と
う性等の物性が優れた成形品が得られるため、繊維強化
樹脂成形品の補強材として一般に用いられている。有機
繊維を樹脂に練り込む従来の方法として、(1) 有機繊維
と熱可塑性樹脂とを二軸押出機の様な強い剪断力をかけ
て混練操作を行う方法や、(2) 大型のミキサーを用いて
有機繊維と熱可塑性樹脂とを混合し、撹拌の剪断熱で溶
解し始めた熱可塑性樹脂を有機繊維に含浸又は絡みつか
せて水飴状態近くなるまで溶融混練する方法があった。
そして、得られた有機繊維−樹脂混合物から有機繊維樹
脂組成物を製造し、これを射出成形材料として用いて成
形品が製造されていた。
2. Description of the Related Art Organic fibers are generally used as reinforcing materials for fiber-reinforced resin molded products because molded products having better physical properties such as toughness and flexibility than inorganic fibers can be obtained. Conventional methods of kneading organic fibers into resin include (1) a method in which organic fibers and thermoplastic resin are kneaded by applying a strong shearing force like a twin screw extruder, and (2) a large mixer. There has been a method in which an organic fiber and a thermoplastic resin are mixed together, and the thermoplastic resin that has begun to be dissolved by shear heat insulation with stirring is impregnated or entangled with the organic fiber and melt-kneaded until the syrup becomes nearly syrupy.
Then, an organic fiber resin composition was manufactured from the obtained organic fiber-resin mixture, and a molded article was manufactured using this as an injection molding material.

【0003】[0003]

【発明が解決しようとする課題】一般に有機繊維の比重
は2以下であり、軽くて嵩高い。この性質のため、無機
繊維と異なり有機繊維と樹脂の混練は困難であった。
(1) の方法では、強い剪断力をかけて混練しても有機繊
維が毛羽立って樹脂と混ざり難く分散が非常に悪いた
め、得られた成形品の外観や物性が不良で使用に耐えら
れないものであった。
Generally, the specific gravity of an organic fiber is 2 or less, and it is light and bulky. Because of this property, it is difficult to knead the organic fiber and the resin unlike the inorganic fiber.
In the method of (1), even if kneading with a strong shearing force, the organic fibers are fluffy and difficult to mix with the resin, and the dispersion is extremely poor, so that the appearance and physical properties of the obtained molded product are poor and cannot be used. Was something.

【0004】また、(2) では、樹脂との混練の際に大型
のミキサー等の装置を用いなければならず、また、得ら
れた有機繊維−樹脂混合物が塊状で押出機に入らないの
で、冷却用ミキサーへ移して充分に冷却した後に拳大の
大きさにし、粉砕機で更に細かくした後、単軸押出機に
てTダイを通してシート状に成形、または角ペレタイザ
ーで角ペレット状にして有機繊維樹脂組成物とするとい
う、煩雑で長い工程を必要とする上、生産装置も高価な
ため、成形コストが高くなっていた。更に、これらの方
法に共通している最も深刻な問題は、有機繊維が強い剪
断力を受け、繊維の表面が傷ついたり長さが極めて短く
なることにより繊維強化の効果が著しく損なわれ、結果
的に繊維強化樹脂成形品の機械特性が低下してしまうこ
とであった。そのため、有機繊維の損傷が少ない成形品
を得るべく実用性のある有機繊維樹脂組成物の開発が望
まれていた。
In the method (2), a large mixer or the like must be used for kneading with the resin, and the obtained organic fiber-resin mixture does not enter the extruder in a lump. After transferring to a cooling mixer and cooling it sufficiently, it is made into a fist size, further crushed by a crusher, formed into a sheet shape through a T die by a single screw extruder, or formed into a square pellet by a square pelletizer, and A complicated and long process of forming a fiber resin composition is required, and the production equipment is expensive, so that the molding cost is high. Furthermore, the most serious problem common to these methods is that the organic fibers are subjected to high shear forces, and the surface of the fibers is damaged or extremely shortened, so that the effect of the fiber reinforcement is significantly impaired, and consequently Another problem is that the mechanical properties of the fiber-reinforced resin molded product deteriorate. Therefore, development of a practical organic fiber resin composition for obtaining a molded article with less damage to the organic fiber has been desired.

【0005】[0005]

【課題を解決するための手段】本発明の第1の発明は、
有機繊維の束が熱可塑性樹脂(A)で被覆された有機繊
維樹脂組成物であって、有機繊維が10〜90重量%で
あることを特徴とする有機繊維樹脂組成物である。
Means for Solving the Problems A first invention of the present invention is:
An organic fiber resin composition in which a bundle of organic fibers is coated with a thermoplastic resin (A), wherein the organic fibers are 10 to 90% by weight.

【0006】第2の発明は、有機繊維がポリエステル繊
維、ナイロン繊維、アクリル繊維、アラミッド繊維、再
生セルロ−ス繊維、綿繊維、麻繊維から選ばれる1種、
または2種以上である第1の発明に記載の有機繊維樹脂
組成物である。
In a second aspect, the organic fibers are one selected from polyester fibers, nylon fibers, acrylic fibers, aramid fibers, regenerated cellulose fibers, cotton fibers, and hemp fibers.
Or the organic fiber resin composition according to the first invention, which is at least two kinds.

【0007】第3の発明は、熱可塑性樹脂(A)がポリ
プロピレンである第1又は第2の発明に記載の有機繊維
樹脂組成物である。
[0007] A third invention is the organic fiber resin composition according to the first or second invention, wherein the thermoplastic resin (A) is polypropylene.

【0008】第4の発明は、第1〜第3の発明いずれか
記載の有機繊維樹脂組成物を用いて成る成形品である。
A fourth invention is a molded article using the organic fiber resin composition according to any one of the first to third inventions.

【0009】[0009]

【発明の実施の形態】以下、本発明を詳細に説明する。
本発明の有機繊維樹脂組成物は、束状の有機繊維の長軸
方向に沿って熱可塑性樹脂(A)が被覆されているもの
である。本発明の有機繊維樹脂組成物の模式図を図1に
示す。
BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, the present invention will be described in detail.
The organic fiber resin composition of the present invention is one in which the thermoplastic resin (A) is coated along the major axis direction of the bundle of organic fibers. FIG. 1 shows a schematic diagram of the organic fiber resin composition of the present invention.

【0010】本発明で用いられる有機繊維は、熱可塑性
樹脂(A)による被覆が良好であり、かつ有機繊維樹脂
組成物及び成形品製造時の加工温度により分解や溶融し
ないことは勿論、延伸性が失われないことが好ましい。
すなわち、これらの加工温度よりも軟化点が高いことが
好ましい。例としてポリエステル繊維、ナイロン繊維、
アクリル繊維、アラミッド繊維等の合成繊維、再生セル
ロ−ス繊維等の化学繊維及び綿、麻等の天然繊維等が挙
げられ、これらから選ばれる1種、または2種以上の組
み合わせを用いることができる。
The organic fiber used in the present invention has good coverage with the thermoplastic resin (A) and is not decomposed or melted depending on the processing temperature at the time of manufacturing the organic fiber resin composition and the molded article. Is preferably not lost.
That is, the softening point is preferably higher than these processing temperatures. For example, polyester fiber, nylon fiber,
Synthetic fibers such as acrylic fibers and aramid fibers; chemical fibers such as regenerated cellulose fibers; and natural fibers such as cotton and hemp; and one or a combination of two or more selected from these. .

【0011】有機繊維の繊維径は、嵩高さを抑えかつ充
分な剪断性を付与する観点から4μm以上、表面が平滑
な成形品を得る観点から20μm以下が好ましい。
The fiber diameter of the organic fiber is preferably 4 μm or more from the viewpoint of suppressing bulkiness and imparting sufficient shearing property, and is preferably 20 μm or less from the viewpoint of obtaining a molded product having a smooth surface.

【0012】有機繊維は5000〜15000本の束を
ひとつの単位としてその束の周囲を長軸方向に沿って溶
融した熱可塑性樹脂(A)により被覆された後、5〜1
0mmの長さのペレット状等に成形され、有機繊維樹脂
組成物が製造される。有機繊維の束は有機繊維樹脂組成
物の太さに影響するので、上記本数の範囲外では有機繊
維樹脂組成物の径が細すぎたり太すぎたりして使い難い
場合がある。
The organic fibers are coated with a thermoplastic resin (A) that has been melted along the longitudinal direction of the bundle in a unit of 5000 to 15000 bundles, and then the bundle is coated with 5-1 to 15,000 bundles.
The organic fiber resin composition is formed into a pellet having a length of 0 mm and the like. Since the bundle of organic fibers affects the thickness of the organic fiber resin composition, if the number is out of the above range, the diameter of the organic fiber resin composition may be too small or too large to be difficult to use.

【0013】本発明の有機繊維樹脂組成物は、コンパウ
ンドでもマスターバッチでもよい。コンパウンドとは、
既に成形品として所望の濃度に有機繊維を含有する有機
繊維樹脂組成物をいう。本発明においては少なくとも有
機繊維と熱可塑性樹脂(A)との構成から成り、そのま
ま成形に供される。
The organic fiber resin composition of the present invention may be a compound or a masterbatch. What is a compound?
An organic fiber resin composition containing organic fibers at a desired concentration as a molded article. In the present invention, it consists of at least the organic fiber and the thermoplastic resin (A), and is directly used for molding.

【0014】一方、マスターバッチとは、有機繊維を高
濃度に含有し、成形品の成形時に希釈樹脂(有機繊維を
含有していない樹脂)である熱可塑性樹脂(B)で有機
繊維を所望の濃度に希釈して成形品とされる有機繊維樹
脂組成物をいい、本発明においては少なくとも有機繊維
と熱可塑性樹脂(A)と熱可塑性樹脂(B)とから成
る。
On the other hand, a masterbatch is a thermoplastic resin (B) which is a diluting resin (a resin containing no organic fibers) which contains organic fibers at a high concentration and which is used for forming the organic fibers at the time of molding. It refers to an organic fiber resin composition which is diluted to a concentration to form a molded article. In the present invention, the composition comprises at least organic fibers, a thermoplastic resin (A), and a thermoplastic resin (B).

【0015】有機繊維樹脂組成物における有機繊維の配
合割合は、コンパンドの場合は10〜90重量%、マス
ターバッチの場合は80〜90重量%が望ましい。この
範囲内では良好な物性が得られる。
The compounding ratio of the organic fibers in the organic fiber resin composition is desirably 10 to 90% by weight for the compound and 80 to 90% by weight for the master batch. Within this range, good physical properties can be obtained.

【0016】本発明で用いられる熱可塑性樹脂(A)
は、有機繊維を被覆しやすく、有機繊維による樹脂の機
械物性強化の効果を損じないものであれば特に限定され
ない。例えばオレフィン系樹脂としてはポリエチレン、
ポリプロピレン、エチレン−プロピレン共重合体、酸変
性オレフィン樹脂等が挙げられ、スチレン系樹脂として
は耐衝撃性ポリスチレン、ABS樹脂、スチレン−ブタ
ジエン共重合体等、その他、PBT樹脂、PET樹脂、
ポリアミド、ポリアセタ−ル樹脂等が挙げられる。これ
らは1種、または2種類以上の混合物としても用いるこ
とができる。
The thermoplastic resin (A) used in the present invention
Is not particularly limited as long as it is easy to cover the organic fiber and does not impair the effect of the organic fiber on enhancing the mechanical properties of the resin. For example, polyethylene as olefin resin,
Polypropylene, ethylene-propylene copolymer, acid-modified olefin resin, and the like. Examples of the styrene-based resin include impact-resistant polystyrene, ABS resin, styrene-butadiene copolymer, and the like, PBT resin, PET resin,
Examples thereof include polyamide and polyacetal resin. These can be used alone or as a mixture of two or more.

【0017】有機繊維樹脂組成物における熱可塑性樹脂
(A)の配合割合は、コンパンドの場合、(A)による
有機繊維被覆が充分であり良好な成形性の観点から10
重量%以上、(A)の配合量に応じた効果が得られる観
点から90重量%以下が望ましい。
The compounding ratio of the thermoplastic resin (A) in the organic fiber resin composition is such that, in the case of a compound, the thermoplastic resin (A) is sufficiently coated with the organic fiber (A) and good moldability is required.
From the viewpoint of obtaining an effect corresponding to the blending amount of (A), 90% by weight or less is desirable.

【0018】また、マスターバッチの場合は上記と同様
の理由より10〜20重量%が好ましい。特に20重量
%を超えた量を被覆に用いると成形品における有機繊維
含有量が相対的に減少し、機械物性が低下するおそれが
ある。
In the case of a masterbatch, the content is preferably 10 to 20% by weight for the same reason as described above. In particular, when an amount exceeding 20% by weight is used for coating, the organic fiber content in the molded article is relatively reduced, and mechanical properties may be reduced.

【0019】本発明の成形品は、有機繊維樹脂組成物が
コンパウンドの場合はそのまま溶融混練後、成形して得
られる。マスターバッチの場合は、マスターバッチと熱
可塑性樹脂(B)とは成形加工の際に直接射出成形機や
押出成形機に各々を直接投入し初めて混合されたときに
熱可塑性樹脂(B)中に有機繊維が速やかに分散される
ことが望ましい。そのため、有機繊維束を被覆している
熱可塑性樹脂(A)の融点または軟化点が熱可塑性樹脂
(B)の融点又は軟化点以下であると、過分な混練をせ
ずに有機繊維が熱可塑性樹脂(B)の中に均一に分散し
やすいので好ましい。
When the organic fiber resin composition is a compound, the molded article of the present invention can be obtained by melt-kneading as it is and then molding. In the case of a masterbatch, the masterbatch and the thermoplastic resin (B) are directly injected into an injection molding machine or an extruder at the time of molding, and are mixed in the thermoplastic resin (B) when they are mixed for the first time. It is desirable that the organic fibers be rapidly dispersed. Therefore, if the melting point or the softening point of the thermoplastic resin (A) covering the organic fiber bundle is lower than the melting point or the softening point of the thermoplastic resin (B), the organic fibers will not be excessively kneaded, It is preferable because it is easily dispersed uniformly in the resin (B).

【0020】更に、成形品により均一さが要求される場
合には、マスターバッチと熱可塑性樹脂(B)とをニ−
ダ−、バンバリミキサ−等の小型装置で溶融混練した
後、単軸押出機(剪断力の弱いスクリュ−を選択)等で
シ−ト成形し角ペレタイザ−等で角ペレット成形し、こ
れを射出成形機や押出成形機に投入して成形する方法が
より好ましい。
Further, when uniformity is required for the molded product, the master batch and the thermoplastic resin (B) need to be used.
After melting and kneading with a small device such as a Darr and Banbury mixer, sheet molding is performed with a single screw extruder (select a screw with low shearing force), etc., and square pellet molding is performed with a square pelletizer, etc., and this is injection molded. It is more preferable to use a molding machine or an extrusion molding machine for molding.

【0021】本発明で用いられる熱可塑性樹脂(B)
は、樹脂の機械特性が有機繊維によって損じず、かつ熱
可塑性樹脂(A)と相溶性のあるものが用いられ、熱可
塑性樹脂(A)と同じ樹脂でもよい。例えばオレフィン
系樹脂としてはポリエチレン、ポリプロピレン、エチレ
ン−プロピレン共重合体、酸変性オレフィン樹脂等が挙
げられ、スチレン系樹脂としては耐衝撃性ポリスチレ
ン、ABS樹脂、スチレン−ブタジエン共重合体等、そ
の他、PBT樹脂、PET樹脂、ポリアミド、ポリアセ
タ−ル樹脂等が挙げられる。これらは1種、または2種
類以上の混合物として用いることができる。
The thermoplastic resin (B) used in the present invention
As the resin, a resin whose mechanical properties are not impaired by organic fibers and which is compatible with the thermoplastic resin (A) is used, and may be the same resin as the thermoplastic resin (A). Examples of the olefin resin include polyethylene, polypropylene, ethylene-propylene copolymer, acid-modified olefin resin, and the like. Examples of the styrene resin include impact-resistant polystyrene, ABS resin, styrene-butadiene copolymer, and the like. Resins, PET resins, polyamides, polyacetal resins, and the like. These can be used alone or as a mixture of two or more.

【0022】成形品における熱可塑性樹脂(B)の配合
割合は、製造時の樹脂の流動性を良好にして反り等の成
形不良を防ぐ観点から50重量%以上、成形品における
良好な機械特性を得る観点から80重量%以下が好まし
く、特に70〜80重量%が好ましい。
The mixing ratio of the thermoplastic resin (B) in the molded product is 50% by weight or more from the viewpoint of improving the fluidity of the resin at the time of production and preventing molding defects such as warpage. From the viewpoint of obtaining, it is preferably 80% by weight or less, particularly preferably 70 to 80% by weight.

【0023】また、成形品における有機繊維の配合割合
は用途により異なるが、成形品における良好な機械特性
を得る観点から10重量%以上、成形不良を防ぐ観点か
ら90重量%が好ましく、特に20〜40重量%が好ま
しい。
The compounding ratio of the organic fibers in the molded article varies depending on the use, but is preferably 10% by weight or more from the viewpoint of obtaining good mechanical properties in the molded article, and preferably 90% by weight from the viewpoint of preventing molding defects, and more preferably from 20 to 20%. 40% by weight is preferred.

【0024】尚、本発明の有機繊維樹脂組成物及び成形
品の製造の際、これらの機能を阻害しない範囲で必要に
応じて耐熱安定剤、耐候剤、滑剤、スリップ剤、難燃
剤、核剤、顔料、染料等の添加剤を配合してもよい。
In the production of the organic fiber resin composition and molded article of the present invention, if necessary, a heat-resistant stabilizer, a weathering agent, a lubricant, a slip agent, a flame retardant, a nucleating agent as long as these functions are not impaired. And additives such as pigments and dyes.

【0025】以上より、従来の有機繊維樹脂組成物にお
ける、大型の機械を用いた煩雑な生産工程の短縮や有機
繊維の剪断が低減され、機械特性の優れた繊維強化樹脂
成形品を提供することが可能となった。
From the foregoing, it is an object of the present invention to provide a fiber-reinforced resin molded product having excellent mechanical properties, in which the conventional organic fiber resin composition can reduce the complicated production process using a large-sized machine and reduce the shearing of organic fibers. Became possible.

【0026】[0026]

【実施例】以下、実施例及び比較例によって本発明を詳
細に説明するが、本発明はこれによって限定されるもの
ではない。尚、機械物性試験(引張強度、伸度、曲げ強
度、曲げ弾性率、Izod衝撃強度、熱変形温度)はASTMの
規格を用いて行い、結果を表1に示した。 (実施例1)ポリエステル繊維(繊維径16μm、繊維束
7000本)60重量%を、ポリプロピレン40重量%で被覆後
ストランド状にし、ペレタイザーにてカットして長さ7
mmのペレット状の有機繊維樹脂組成物を得た。ポリプ
ロピレン50重量%、上記有機繊維樹脂組成物50重量%と
を配合し、東芝IS100F1 型射出成形機にて射出温度190
℃、金型温度40℃の成形条件でプレート成形し、得られ
た成形品の機械物性試験を行った。
EXAMPLES The present invention will be described below in detail with reference to Examples and Comparative Examples, but the present invention is not limited thereto. In addition, mechanical property tests (tensile strength, elongation, bending strength, flexural modulus, Izod impact strength, heat deformation temperature) were performed using ASTM standards, and the results are shown in Table 1. (Example 1) Polyester fiber (fiber diameter 16 µm, fiber bundle
7000 strands) 60% by weight, coated with 40% by weight of polypropylene, formed into strands, cut with a pelletizer and cut to a length of 7
Thus, an organic fiber resin composition in the form of a pellet was obtained. Combined with 50% by weight of polypropylene and 50% by weight of the above organic fiber resin composition, an injection temperature of 190 using a Toshiba IS100F1 type injection molding machine.
Plate molding was performed under molding conditions of a mold temperature of 40 ° C. and a mold temperature of 40 ° C., and the obtained molded product was subjected to a mechanical property test.

【0027】(比較例1)ポリエステル繊維(繊維径16
μm、長さ7.5 mm)60重量%と、実施例1と同じポリ
プロピレン40重量%を配合し、ヘンシェルミキサ−150L
(三井三池化工機(株)製)に投入、ジャケット温度を
100 ℃に設定し高速回転で攪拌を行い、熱可塑性樹脂
(A)が溶融した時点で攪拌を低速回転に変え、溶融混
合した樹脂組成物を冷却用ミキサ−に入れ換えて充分冷
却した後、粉砕機にて粉砕し、ペレット状の有機繊維樹
脂組成物を得た。実施例1と同じポリプロピレン50重量
%と上記有機繊維樹脂組成物50重量%とを配合し、実施
例1と同様の成形条件でプレート成形し、同様に得られ
た成形品の機械物性試験を行った。
Comparative Example 1 Polyester fiber (fiber diameter 16
μm, length 7.5 mm) 60% by weight and the same 40% by weight of polypropylene as in Example 1 were mixed, and the Henschel mixer 150L
(Made by Mitsui Miike Kakoki Co., Ltd.)
Stir at high speed at 100 ° C and change the stirring to low speed when the thermoplastic resin (A) is melted. Replace the melt-mixed resin composition in a cooling mixer, cool sufficiently, and pulverize. The mixture was pulverized by a machine to obtain a pellet-shaped organic fiber resin composition. 50% by weight of the same polypropylene as in Example 1 and 50% by weight of the organic fiber resin composition were blended, and plate molding was performed under the same molding conditions as in Example 1, and a mechanical property test was performed on the molded article obtained in the same manner. Was.

【0028】[0028]

【表1】 [Table 1]

【0029】[0029]

【発明の効果】本発明の有機繊維樹脂組成物は、嵩高い
有機繊維束を熱可塑性樹脂(A)でコンパクトにまとめ
て被覆しているので有機繊維の損傷の少ない有機繊維樹
脂組成物が得られる。
According to the organic fiber resin composition of the present invention, a bulky organic fiber bundle is compactly covered with the thermoplastic resin (A), so that an organic fiber resin composition with less damage to the organic fibers can be obtained. Can be

【0030】更に、マスターバッチ中の有機繊維樹脂組
成物中の熱可塑性樹脂(A)の融点又は軟化点を、成形
品加工時に添加される熱可塑性樹脂(B)の融点又は軟
化点以下に設定することにより、熱可塑性樹脂(B)中
への有機繊維の分散を速やかにし、有機繊維の損傷が少
なく機械物性が良好かつ美麗な成形品が得られる。
Further, the melting point or softening point of the thermoplastic resin (A) in the organic fiber resin composition in the masterbatch is set to be lower than the melting point or softening point of the thermoplastic resin (B) added at the time of processing a molded article. By doing so, the dispersion of the organic fibers in the thermoplastic resin (B) is accelerated, and a beautiful molded product with less damage to the organic fibers and good mechanical properties is obtained.

【図面の簡単な説明】[Brief description of the drawings]

【図1】本発明の有機繊維樹脂組成物の模式図FIG. 1 is a schematic view of an organic fiber resin composition of the present invention.

───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.7 識別記号 FI テーマコート゛(参考) // B29K 23:00 B29K 23:00 101:12 101:12 105:12 105:12 267:00 267:00 401:00 401:00 433:20 433:20 477:00 477:00 ──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. 7 Identification symbol FI Theme court ゛ (Reference) // B29K 23:00 B29K 23:00 101: 12 101: 12 105: 12 105: 12 267: 00 267: 00 401: 00 401: 00 433: 20 433: 20 477: 00 477: 00

Claims (4)

【特許請求の範囲】[Claims] 【請求項1】有機繊維の束が熱可塑性樹脂(A)で被覆
された有機繊維樹脂組成物であって、有機繊維が10〜
90重量%であることを特徴とする有機繊維樹脂組成
物。
An organic fiber resin composition in which a bundle of organic fibers is coated with a thermoplastic resin (A), wherein the organic fibers are 10 to 10.
An organic fiber resin composition, which is 90% by weight.
【請求項2】有機繊維がポリエステル繊維、ナイロン繊
維、アクリル繊維、アラミッド繊維、再生セルロ−ス繊
維、綿繊維、麻繊維から選ばれる1種、または2種以上
である請求項1記載の有機繊維樹脂組成物。
2. The organic fiber according to claim 1, wherein the organic fiber is at least one selected from polyester fiber, nylon fiber, acrylic fiber, aramid fiber, regenerated cellulose fiber, cotton fiber, and hemp fiber. Resin composition.
【請求項3】熱可塑性樹脂(A)がポリプロピレンであ
る請求項1又は2に記載の有機繊維樹脂組成物。
3. The organic fiber resin composition according to claim 1, wherein the thermoplastic resin (A) is polypropylene.
【請求項4】請求項1〜3いずれか記載の有機繊維樹脂
組成物を用いて成る成形品。
4. A molded article comprising the organic fiber resin composition according to claim 1.
JP2000362194A 1999-11-29 2000-11-29 Organic fiber-resin composition and use thereof Pending JP2001220517A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
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Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP11-337873 1999-11-29
JP33787399 1999-11-29
JP2000362194A JP2001220517A (en) 1999-11-29 2000-11-29 Organic fiber-resin composition and use thereof

Publications (1)

Publication Number Publication Date
JP2001220517A true JP2001220517A (en) 2001-08-14

Family

ID=26575936

Family Applications (1)

Application Number Title Priority Date Filing Date
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Country Status (1)

Country Link
JP (1) JP2001220517A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005532417A (en) * 2001-12-19 2005-10-27 イー・アイ・デュポン・ドウ・ヌムール・アンド・カンパニー Polyamide resin composition having electromagnetic wave shielding characteristics and article formed therefrom
JP2007253549A (en) * 2006-03-24 2007-10-04 Mazda Motor Corp Manufacturing process of fiber-reinforced resin molded article
JP2008150415A (en) * 2006-12-14 2008-07-03 Kuraray Co Ltd Lightweight fiber-reinforced resin composition excellent in impact resistance and molded article comprising the same
US7482402B2 (en) 2005-05-17 2009-01-27 Exxonmobil Research And Engineering Company Fiber reinforced polypropylene compositions
WO2011079637A1 (en) * 2009-12-31 2011-07-07 合肥杰事杰新材料有限公司 Ultra-high toughness and high strength organic fiber reinforced thermoplastic composite material and preparation process thereof

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005532417A (en) * 2001-12-19 2005-10-27 イー・アイ・デュポン・ドウ・ヌムール・アンド・カンパニー Polyamide resin composition having electromagnetic wave shielding characteristics and article formed therefrom
US7482402B2 (en) 2005-05-17 2009-01-27 Exxonmobil Research And Engineering Company Fiber reinforced polypropylene compositions
JP2007253549A (en) * 2006-03-24 2007-10-04 Mazda Motor Corp Manufacturing process of fiber-reinforced resin molded article
JP2008150415A (en) * 2006-12-14 2008-07-03 Kuraray Co Ltd Lightweight fiber-reinforced resin composition excellent in impact resistance and molded article comprising the same
WO2011079637A1 (en) * 2009-12-31 2011-07-07 合肥杰事杰新材料有限公司 Ultra-high toughness and high strength organic fiber reinforced thermoplastic composite material and preparation process thereof

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