JP3040865B2 - Long fiber reinforced thermoplastic resin pellets - Google Patents
Long fiber reinforced thermoplastic resin pelletsInfo
- Publication number
- JP3040865B2 JP3040865B2 JP3327358A JP32735891A JP3040865B2 JP 3040865 B2 JP3040865 B2 JP 3040865B2 JP 3327358 A JP3327358 A JP 3327358A JP 32735891 A JP32735891 A JP 32735891A JP 3040865 B2 JP3040865 B2 JP 3040865B2
- Authority
- JP
- Japan
- Prior art keywords
- fiber
- thermoplastic resin
- pellets
- reinforced thermoplastic
- fiber reinforced
- 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.)
- Expired - Lifetime
Links
Description
【０００１】[0001]
【産業上の利用分野】本発明は射出成形用長繊維強化熱
可塑性樹脂ペレットに関するものである。更に詳しく
は、射出成形時の可塑化時間のバラツキが非常に少な
く、安定した優れた成形品物性の得ることのできる長繊
維強化熱可塑性樹脂ペレットに関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a long fiber reinforced thermoplastic resin pellet for injection molding. More specifically, the present invention relates to a long-fiber-reinforced thermoplastic resin pellet which has very little variation in plasticization time during injection molding and can obtain stable and excellent molded article properties.
【０００２】[0002]
【従来の技術】プルトル−ジョンプロセスによって得ら
れる長繊維で強化され、かつ繊維が引揃えられた樹脂組
成物ロ−プをペレット状に切断した長繊維強化熱可塑性
樹脂ペレットは、成形した時に繊維の損傷が少ないこと
から、機械的強度に優れた成形品を提供する成形材料と
して知られ、例えば特公昭６３−３７６９４号公報に示
される方法で得られる。2. Description of the Related Art A long fiber reinforced thermoplastic resin pellet obtained by cutting a resin composition rope reinforced with long fibers obtained by a pultrusion process and in which fibers are aligned into pellets into a pellet shape is formed into a fiber when molded. Since it is less damaged, it is known as a molding material for providing a molded article having excellent mechanical strength, and can be obtained, for example, by the method disclosed in JP-B-63-37694.
【０００３】しかしながら、この方法で得られた繊維強
化ペレットの射出成形品は機械的強度に優れたものであ
るが機械的物性バラツキが大きく、又成形品中の繊維長
も、成形品間で大きく異なり、実用的な成形材料とは言
い難いのが現状であった。又、安定した成形加工性を示
さず、特に射出成形時の可塑化時間のバラツキが大きい
ものであった。[0003] However, injection molded articles of fiber reinforced pellets obtained by this method are excellent in mechanical strength, but have large variations in mechanical properties, and the fiber length in the molded articles is large between molded articles. On the contrary, at present, it is difficult to say that it is a practical molding material. Further, it did not show stable molding processability, and particularly had a large variation in plasticization time during injection molding.
【０００４】[0004]
【発明が解決しようとする課題】本発明の目的は、従来
の長繊維強化熱可塑性樹脂ペレットの上記の問題点を解
決し、射出成形時の可塑化時間のバラツキが少なく、安
定した優れた成形品物性の得られる長繊維強化熱可塑性
樹脂ペレットを提供する所にある。SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problems of conventional long-fiber-reinforced thermoplastic resin pellets, to reduce the variation in plasticization time during injection molding, and to achieve stable and excellent molding. It is an object of the present invention to provide long fiber reinforced thermoplastic resin pellets capable of obtaining physical properties.
【０００５】[0005]
【課題を解決するための手段】本発明者等は、上記目的
を達成する為に鋭意研究を重ねた結果、ペレットを構成
する長繊維フィラメントと熱可塑性樹脂との濡れが良好
で、ペレットからの繊維の脱落が特定量以下の長繊維強
化熱可塑性樹脂ペレットのみが、その目的に適合するこ
とを見い出し、この知見に基づき本発明を完成させるに
至った。Means for Solving the Problems The present inventors have conducted intensive studies to achieve the above object, and as a result, the wetting of the filament fibers constituting the pellet with the thermoplastic resin is good, and It has been found that only long fiber reinforced thermoplastic resin pellets in which the detachment of fibers is less than a specified amount are suitable for the purpose, and based on this finding, the present invention has been completed.
【０００６】すなわち、本発明は熱可塑性樹脂と少なく
とも２０容量％の平行に配列された強化用繊維フィラメ
ントとを含む長さ３〜３０ｍｍの長繊維強化熱可塑性樹
脂ペレットであって、該ペレットを構成する繊維フィラ
メントのペレットからの脱落率が１．０重量％以下であ
ることを特徴とする長繊維強化熱可塑性樹脂ペレットで
ある。That is, the present invention is a long fiber reinforced thermoplastic resin pellet having a length of 3 to 30 mm containing a thermoplastic resin and at least 20% by volume of reinforcing fiber filaments arranged in parallel. The long fiber reinforced thermoplastic resin pellets are characterized in that the falling rate of the fiber filaments from the pellets is 1.0% by weight or less.
【０００７】以下、本発明を詳細に説明する。本発明の
長繊維強化熱可塑性樹脂ペレットは該ペレットを構成す
る繊維フィラメントのペレットからの脱落率が非常に小
さく、このことが本発明の驚くべき効果を発現させてい
るものと考えられる。本発明の長繊維強化熱可塑性樹脂
ペレットとは、ペレットと実質的に同一長さでかつペレ
ットの長さ方向に配列した繊維を少なくとも２０容量％
含有する長さ３〜３０ｍｍのペレットであり、ペレット
からの繊維フィラメントの脱落率が１．０重量％以下で
あることが必須である。Hereinafter, the present invention will be described in detail. The long fiber reinforced thermoplastic resin pellets of the present invention have a very small falling rate of the fiber filaments constituting the pellets from the pellets, and this is considered to exert the surprising effect of the present invention. The long fiber reinforced thermoplastic resin pellets of the present invention are fibers having substantially the same length as the pellets and arranged in the length direction of the pellets at least 20% by volume.
It is a pellet having a length of 3 to 30 mm to be contained, and it is indispensable that the falling rate of the fiber filament from the pellet is 1.0% by weight or less.
【０００８】本発明に言う繊維フィラメントの脱落率と
は、下記関係式で示されるものであり、長さ５ｍｍの長
繊維強化ペレットを繊維の配列方向に半分に切ったもの
を振とう機に一定時間かけた後、ペレットから脱落した
繊維フィラメントの量を求め、下記式から脱落率（重量
％）としたものである。 ここでＷ0 は測定前試料ペレット中の繊維重量であり、
Ｗ1 は振とう後に測定試料ペレットから脱落した繊維フ
ィラメント重量である。[0008] The falling rate of the fiber filament referred to in the present invention is represented by the following relational expression, and is obtained by cutting a long fiber reinforced pellet having a length of 5 mm in half in the direction in which the fibers are arranged into a shaking machine. After a long period of time, the amount of the fiber filaments dropped from the pellets was determined, and the drop rate (% by weight) was obtained from the following equation. Here, W 0 is the fiber weight in the sample pellet before measurement,
W 1 is a fiber filament weight dropped from sample pellets after shaking.
【０００９】この脱落率は熱可塑性樹脂と繊維フィラメ
ントとの濡れ性の最適な実用的パラメーターであるばか
りでなく、当該ペレットの成形加工特性を示すパラメー
ターでもある。このペレットからの脱落率が１．０重量
％以上の長繊維強化熱可塑性樹脂ペレットでは、連続し
て射出成形を行っていると、可塑化時間が長くなる場合
が頻発し、このため、射出成形機スクリューによる可塑
化時の繊維破損が激しくなり、長繊維で強化した物性向
上効果が発現しないばかりでなく、得られた成形品の物
性バラツキが大きくなる。[0009] The shedding rate is not only an optimal practical parameter for the wettability between the thermoplastic resin and the fiber filaments, but also a parameter indicating the molding characteristics of the pellet. In the case of long fiber reinforced thermoplastic resin pellets having a falling rate of 1.0% by weight or more from the pellets, if the injection molding is continuously performed, the plasticization time often becomes long. Fiber breakage at the time of plasticization by the machine screw becomes severe, not only does the physical property improving effect reinforced by long fibers not appear, but also the physical properties of the obtained molded product vary greatly.
【００１０】このため、脱落率は１．０重量％以下、好
ましくは、０．７重量％以下であり、これを満足する長
繊維強化熱可塑性樹脂ペレットのみが上記問題点を解消
できるのである。本発明のペレットを構成する熱可塑性
樹脂としては特に制約はなく、公知の熱可塑性樹脂が用
途に応じて使用できる。例えば、オレフィン系重合体
（ポリエチレン、ポリプロピレン等）、アクリレートあ
るいはメタクリレート系重合体（ポリメチルメタクリレ
ート等）、ポリスチレン、ＡＳ樹脂、ＡＢＳ樹脂、ポリ
アミド（ナイロン６、６６等）、ポリエステル（ポリエ
チレンテレフタレート、ポリブチレンテレフタレート
等）、ポリカーボネート、ポリアセタール、ポリフェニ
レンエーテル、ポリフェニレンサルファイド等が挙げら
れる。これらの樹脂はグラフト、架橋等公知の方法で変
性したものであってもよい。また、これらの樹脂を２種
以上を併用したブレンド物、ポリマーアロイであっても
良い。[0010] For this reason, the shedding rate is 1.0% by weight or less, preferably 0.7% by weight or less, and only the long-fiber-reinforced thermoplastic resin pellets satisfying this condition can solve the above-mentioned problems. The thermoplastic resin constituting the pellet of the present invention is not particularly limited, and a known thermoplastic resin can be used according to the application. For example, olefin polymers (polyethylene, polypropylene, etc.), acrylate or methacrylate polymers (polymethyl methacrylate, etc.), polystyrene, AS resin, ABS resin, polyamide (nylon 6, 66, etc.), polyester (polyethylene terephthalate, polybutylene) Terephthalate), polycarbonate, polyacetal, polyphenylene ether, polyphenylene sulfide, and the like. These resins may be modified by known methods such as grafting and crosslinking. Also, a blend or a polymer alloy in which two or more of these resins are used in combination may be used.
【００１１】また、本発明の長繊維強化熱可塑性樹脂ペ
レットを製造する際に用いられる補強用繊維としては、
ガラス繊維、炭素繊維、芳香族ポリアミド繊維、炭化ケ
イ素繊維、金属繊維等の高強度、高弾性率補強繊維から
なる、いわゆるロービング繊維である。単糸（フィラメ
ント）数は、補強繊維の種類等にもよるが、通常、１，
０００〜３０，０００本程度である。これらの繊維は組
み合わせて使用することも可能である。また熱可塑樹脂
に対する濡れ性を向上させるために、公知の各種の表面
処理を施しておくことが好ましい。The reinforcing fibers used in producing the long fiber reinforced thermoplastic resin pellets of the present invention include:
It is a so-called roving fiber composed of high-strength, high-modulus reinforcing fibers such as glass fiber, carbon fiber, aromatic polyamide fiber, silicon carbide fiber, and metal fiber. Although the number of single yarns (filaments) depends on the type of reinforcing fiber, etc., it is usually 1
It is about 000 to 30,000. These fibers can be used in combination. Further, in order to improve the wettability to the thermoplastic resin, it is preferable to perform various known surface treatments.
【００１２】又、補強繊維は撚りをもたないか、もって
いても極く少ないのが好ましい。撚りを持っていると、
フィラメント同士の交絡ができることから、成形品にし
た時、交絡点が破壊の起点になりやすい。さらに、補強
繊維は、好ましくは繊維を構成するフィラメントを公知
の方法で開繊して使用するのが熱可塑樹脂との濡れ性を
さらに加速するので好ましい。Further, it is preferable that the reinforcing fibers have no twist or have very little. If you have a twist,
Since the filaments can be entangled with each other, the entanglement point tends to be a starting point of destruction when formed into a molded product. Further, it is preferable to use the reinforcing fibers by opening the filaments constituting the fibers by a known method, since the wettability with the thermoplastic resin is further accelerated.
【００１３】本発明の長繊維強化熱可塑性樹脂ペレット
の製造法は、得られたペレットの繊維脱落率が１．０重
量％以下になるものであれば、いかなる方法を用いても
良い。好ましい製造方法としては、繊維ロービングを開
繊ロールを用いて連続的に走行させながら開繊させた
後、溶融熱可塑性樹脂と接触させ、熱可塑性樹脂を付着
させる。この時、繊維が十分にほぐされている為、該繊
維を構成するフィラメント１本、１本まで樹脂が付着、
含浸され易くなる。As a method for producing the long fiber reinforced thermoplastic resin pellets of the present invention, any method may be used as long as the fiber loss rate of the obtained pellets is 1.0% by weight or less. As a preferable production method, the fiber roving is spread while being continuously run using a spreading roll, and then is brought into contact with a molten thermoplastic resin to adhere the thermoplastic resin. At this time, since the fibers are sufficiently loosened, the resin adheres to one filament and one filament constituting the fibers,
It becomes easy to be impregnated.
【００１４】熱可塑性樹脂を付着、含浸させるには、例
えば溶融熱可塑性樹脂に繊維ロービングを浸漬して通す
方法や、コーティング用ダイに繊維ロービングを通す方
法や、ダイを用いて繊維ロービングの周りに溶融熱可塑
性樹脂を押し出す方法によることができる。繊維ロービ
ング中への溶融熱可塑性樹脂の含浸、濡れ性をさらに向
上させる為に、ダイ内に凹凸部をもうけ、張力下に溶融
熱可塑性樹脂の付着した繊維ロービングを引き抜き、さ
らに加圧ロールでプレスする工程を組み込むことが特に
好ましい。To adhere and impregnate the thermoplastic resin, for example, a method of immersing fiber roving in a molten thermoplastic resin and passing it, a method of passing fiber roving through a coating die, and using a die to surround fiber rovings It can be based on a method of extruding a molten thermoplastic resin. In order to further improve the impregnation of the molten thermoplastic resin into the fiber roving and the wettability, make an uneven part in the die, pull out the fiber roving with the molten thermoplastic resin attached under tension, and press with a pressure roll It is particularly preferred to incorporate the step of
【００１５】この様にして得られた、ロープ状又はテー
プ状の長繊維強化熱可塑性樹脂組成物はそのまま、ある
いはロープ状に成形され冷却されて、３〜３０ｍｍの長
さのペレットに切断されて得られる。かかる工程を経る
ことによって得られる長繊維強化熱可塑性樹脂ペレット
中の繊維含有率は少なくとも２０容量％が必要である。
繊維の含有率が２０容量％より少ないと、射出成形して
得られる成形品は強度、剛性、衝撃強度等が十分向上し
たものではないからである。The rope-shaped or tape-shaped long-fiber-reinforced thermoplastic resin composition obtained as described above, or as a rope-shaped and cooled, is cut into pellets having a length of 3 to 30 mm. can get. The fiber content in the long fiber reinforced thermoplastic resin pellets obtained through these steps must be at least 20% by volume.
If the fiber content is less than 20% by volume, the molded product obtained by injection molding does not have sufficiently improved strength, rigidity, impact strength and the like.
【００１６】本発明の長繊維強化熱可塑性樹脂ペレット
のペレット長さは３〜３０ｍｍ以上である。ペレット長
が３ｍｍ以下では射出成形品中の繊維長が短かくなり、
強度、剛性、衝撃強度が期待していた程には発現しない
からであり、その長さが３０ｍｍ以上になると、射出成
形時に成形不良を起こし、かえって物性を発現しないか
らである。特に好ましいペレット長さは５〜１５ｍｍで
ある。The pellet length of the long fiber reinforced thermoplastic resin pellet of the present invention is 3 to 30 mm or more. If the pellet length is 3 mm or less, the fiber length in the injection molded product becomes short,
This is because the strength, rigidity, and impact strength do not appear as expected, and if the length is 30 mm or more, molding failure occurs during injection molding, and physical properties are not exhibited. Particularly preferred pellet length is 5 to 15 mm.
【００１７】また、本発明の長繊維強化熱可塑性樹脂ペ
レットは一般に熱可塑性樹脂に添加される公知の物質、
例えば酸化防止剤や紫外線吸収剤等の安定剤、帯電防止
剤、難燃剤、染料や顔料等の着色剤、潤滑剤、結晶化促
進剤、ガラスビーズ、焼成クレー、シリカ、マイカ等の
無機充填剤を含むものであっても良い。The long fiber reinforced thermoplastic resin pellets of the present invention may be a known substance generally added to a thermoplastic resin,
For example, stabilizers such as antioxidants and ultraviolet absorbers, antistatic agents, flame retardants, coloring agents such as dyes and pigments, lubricants, crystallization accelerators, inorganic fillers such as glass beads, calcined clay, silica, and mica. May be included.
【００１８】[0018]
【実施例】以下、実施例により本発明をさらに具体的に
説明するが、本発明はこれに限定されるものでない。な
お、実施例に示した長繊維強化熱可塑性樹脂ペレットの
評価は次の方法に従って実施した。 （１）繊維フィラメント脱落率 長繊維ペレットを長さ５ｍｍに切断し、さらにそれを繊
維の配列方向に半分に切断した。これを約１ｇ秤量し、
１００ミリリットルを三角フラスコに投入し、５分間振
とうする。次に、振とうによって繊維フィラメントが脱
落したサンプルを取り出し、振とう前後のサンプルの重
量差より、脱落した繊維フィラメント量とした。そし
て、下記式により、繊維フィラメント脱落率（重量％）
を求めた。EXAMPLES Hereinafter, the present invention will be described more specifically with reference to Examples, but the present invention is not limited thereto. The evaluation of the long fiber reinforced thermoplastic resin pellets shown in the examples was performed according to the following method. (1) Fiber filament detachment rate The long fiber pellet was cut into a length of 5 mm, and further cut in half in the fiber arrangement direction. Weigh about 1 g of this,
Put 100 ml into an Erlenmeyer flask and shake for 5 minutes. Next, the sample from which the fiber filaments were dropped by shaking was taken out, and the weight difference between the sample before and after shaking was determined as the amount of the dropped fiber filaments. Then, according to the following equation, the fiber filament falling rate (% by weight)
I asked.
【００１９】 ここで、Ｗ0 ：測定前試料中の繊維重量（ｇ） Ｗ1 ：測定試料から脱落した繊維重量（ｇ） （２）機械的強度 ペレットを、（株）日本製鋼所製 Ｎ−７０ＢＩＩ 射
出成形機を用いて、２０ショット捨て打ち後、厚さ３ｍ
ｍのダンベル片を１０ショット連続成形した。この時得
られたダンベル片を ＡＳＴＭ−Ｄ６３８ に従って引
張試験を実施し引張強度の平均値と偏差値を測定した。 （３）可塑化時間 上記ダンベル片成形時の３０ショット分の可塑化時間の
平均値と標準偏差を求めた。 （４）成形品中の繊維長 成形品を６５０℃の電気炉に４５分間投入して、樹脂分
を焼却した後、顕微鏡で観察することによって平均繊維
長を求めた。[0019] Here, W 0 : weight of fiber in the sample before measurement (g) W 1 : weight of fiber dropped from the measurement sample (g) (2) Mechanical strength Pellets are N-70BII injection-molded by Nippon Steel Works, Ltd. After throwing away 20 shots using a machine, thickness 3m
m dumbbell pieces were continuously formed for 10 shots. The dumbbell pieces obtained at this time were subjected to a tensile test according to ASTM-D638, and the average value and the deviation value of the tensile strength were measured. (3) Plasticization time The average value and the standard deviation of the plasticization time for 30 shots during the molding of the dumbbell pieces were determined. (4) Fiber Length in Molded Article The molded article was put into an electric furnace at 650 ° C. for 45 minutes to incinerate the resin, and then observed with a microscope to determine the average fiber length.
【００２０】[0020]
【実施例１】ナイロン６６とガラス繊維から次のように
して、長繊維強化熱可塑性樹脂ペレットを得た。用いた
装置の概略を図１に示す。まず、ガラスロービング繊維
（２２００ｔｅｘ、旭ファイバーグラス（株）製、径１
６μ、ＦＴ５９４）のロービングボビンを２ロール用意
した。このロービングボビンからガラスロービング繊維
を繰り出し、テフロンシートを巻いた、２５ｍｍ径のバ
ー４個にジグザグ状に這わせ、更に上部ロールが約１０
２ｍｍ径で、２ｍｍ深さ、幅５５ｍｍの切り欠きを３個
等間隔で有する駆動ローラーで引き取った。この時２本
のガラスロービング繊維はそれぞれ、５ｍｍの幅が３５
ｍｍから最大１２０ｍｍに開繊した。次いで該ガラスロ
ービング繊維を熱風式予熱炉に導入して、約３００℃に
加熱した。Example 1 A long fiber reinforced thermoplastic resin pellet was obtained from nylon 66 and glass fiber as follows. FIG. 1 schematically shows the apparatus used. First, a glass roving fiber (2200 tex, manufactured by Asahi Fiber Glass Co., Ltd., diameter 1)
Two rolls of 6 μm, FT594) roving bobbins were prepared. The glass roving fiber is fed out from the roving bobbin, and rolled in a zigzag manner on four 25 mm diameter bars wound with a Teflon sheet.
It was taken up by a driving roller having two notches of 2 mm diameter, 2 mm depth and 55 mm width at equal intervals. At this time, each of the two glass roving fibers has a width of 5 mm of 35 mm.
mm to a maximum of 120 mm. Next, the glass roving fiber was introduced into a hot air preheating furnace and heated to about 300 ° C.
【００２１】一方、旭化成工業（株）製レオナ１２００
（ナイロン６／６、融点２６３℃）を単軸押出機を用い
て可塑化、溶融し、コーティングダイへ供給した。該ダ
イに上記のガラスロービング繊維２本を導入し、ナイロ
ン６／６で被覆し、次いで、凸数５、糸道からの凸度合
いが４ｍｍ、表面温度２８５℃に設定された凸ダイ中を
通過させ、更に常温の駆動プレスローラーで８０ｋｇの
ニップ力で引き取り、帯状のガラス繊維強化ナイロン６
／６を得た後、これを連続的に、先端出口に３ｍｍ径の
成形ノズルを付帯した熱風式軟化炉に導入して、ロープ
状に成形した。次いで水で冷却して固化させ、長さ約１
０ｍｍ、径約３ｍｍのペレットを得た。引取り速度は１
２ｍ／分であり、ペレット中のガラスフィラメント繊維
含有率（容量％）は３８重量％であった。得られたペレ
ットを乾燥後、諸特性を評価した。その結果を表１に示
す。On the other hand, Leona 1200 manufactured by Asahi Kasei Corporation
(Nylon 6/6, melting point: 263 ° C.) was plasticized and melted using a single screw extruder, and supplied to a coating die. The above glass roving fiber is introduced into the die and coated with nylon 6/6, and then passed through a convex die set to a convex number of 5, a convexity from the yarn path of 4 mm, and a surface temperature of 285 ° C. And with a nip force of 80 kg with a driving press roller at room temperature, a belt-shaped glass fiber reinforced nylon 6
After obtaining / 6, it was continuously introduced into a hot-air softening furnace having a 3 mm-diameter forming nozzle at the outlet at the tip, and formed into a rope shape. Then it is solidified by cooling with water, and the length is about 1
A pellet having a diameter of 0 mm and a diameter of about 3 mm was obtained. Pickup speed is 1
It was 2 m / min, and the glass filament fiber content (% by volume) in the pellets was 38% by weight. After drying the obtained pellets, various properties were evaluated. Table 1 shows the results.
【００２２】[0022]
【比較例１】熱風式予熱炉でガラス繊維を加熱しない以
外は、実施例１と同じ方法でペレットを得た後、諸特性
を評価した。その結果を表１に示す。Comparative Example 1 Pellets were obtained in the same manner as in Example 1 except that the glass fibers were not heated in a hot air preheating furnace, and then various characteristics were evaluated. Table 1 shows the results.
【００２３】[0023]
【比較例２】凸ダイを通過させる工程を省いた以外は、
実施例１と同様の方法でペレットを得た後、諸特性を評
価した。その結果を表１に示す。[Comparative Example 2] Except that the step of passing through the convex die was omitted,
After pellets were obtained in the same manner as in Example 1, various characteristics were evaluated. Table 1 shows the results.
【００２４】[0024]
【比較例３】駆動プレスローラーでニップして引き取る
工程を省いた以外は実施例１と同じ方法でペレットを得
た後、諸特性を評価した。その結果を表１に示す。Comparative Example 3 Pellets were obtained in the same manner as in Example 1 except that the step of nipping with a driving press roller and taking out was omitted, and various characteristics were evaluated. Table 1 shows the results.
【００２５】[0025]
【実施例２〜４】表１に示すガラス繊維濃度になる様に
実施例１の装置を用いて同じ方法でペレットを得た。そ
の結果を表１に示す。Examples 2 to 4 Pellets were obtained by the same method using the apparatus of Example 1 so as to obtain the glass fiber concentrations shown in Table 1. Table 1 shows the results.
【００２６】[0026]
【表１】 [Table 1]
【００２７】[0027]
【発明の効果】本発明によれば、射出成形して得られた
成形品に於て、繊維の補強効果が十分に発揮されるとと
もに、成形性も安定しておりかつ物性バラツキの少な
い、成形用材料を提供することができる。According to the present invention, a molded article obtained by injection molding exhibits a fiber reinforcing effect sufficiently, has a stable moldability, and has little variation in physical properties. Material can be provided.
【図１】本発明に係るペレットを製造する装置の一例を
示す概略図である。FIG. 1 is a schematic view showing an example of an apparatus for producing pellets according to the present invention.
１ ロービング繊維 ２ 糸道 ３ 予熱炉 ４ コーティングダイ ５ 凸ダイ ６ 駆動プレスローラー ７ 押出機 ８ ロービング繊維ボビン ９ 熱可塑性樹脂 １０ 表面材質が絶縁材料であるバー １１ ロール軸方向に切り欠きを有する駆動ローラー １２ 成形ノズルを付帯した熱風式軟化炉 １３ 水冷バス １４ カッター DESCRIPTION OF SYMBOLS 1 Roving fiber 2 Yarn path 3 Preheating furnace 4 Coating die 5 Convex die 6 Drive press roller 7 Extruder 8 Roving fiber bobbin 9 Thermoplastic resin 10 Bar whose surface material is insulating material 11 Drive roller having cutout in roll axis direction 12 Hot air softening furnace with forming nozzle 13 Water cooling bath 14 Cutter
───────────────────────────────────────────────────── フロントページの続き (58)調査した分野(Int.Cl.7，ＤＢ名) B29B 9/00 - 9/16 ──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. 7 , DB name) B29B 9/00-9/16
Claims (1)
平行に配列された強化用繊維フィラメントとを含む長さ
３〜３０ｍｍの長繊維強化熱可塑性樹脂ペレットであっ
て、該ペレットを構成する繊維フィラメントのペレット
からの脱落率が１．０重量％以下であることを特徴とす
る長繊維強化熱可塑性樹脂ペレット。1. A long-fiber reinforced thermoplastic resin pellet comprising a thermoplastic resin and at least 20% by volume of reinforcing fiber filaments arranged in parallel at a length of 3 to 30 mm, the fiber filament constituting the pellet The long fiber reinforced thermoplastic resin pellets, wherein the falling rate from the pellets is 1.0% by weight or less.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3327358A JP3040865B2 (en) | 1991-12-11 | 1991-12-11 | Long fiber reinforced thermoplastic resin pellets |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3327358A JP3040865B2 (en) | 1991-12-11 | 1991-12-11 | Long fiber reinforced thermoplastic resin pellets |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH05162124A JPH05162124A (en) | 1993-06-29 |
| JP3040865B2 true JP3040865B2 (en) | 2000-05-15 |
Family
ID=18198255
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3327358A Expired - Lifetime JP3040865B2 (en) | 1991-12-11 | 1991-12-11 | Long fiber reinforced thermoplastic resin pellets |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3040865B2 (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06182761A (en) * | 1992-12-15 | 1994-07-05 | Toyobo Co Ltd | Fiber-reinforced resin pellet and molded product thereof |
| KR100574608B1 (en) * | 1999-12-31 | 2006-05-02 | 주식회사 데크 | Carbon Complex Material Manufacture Method |
| JP4666571B2 (en) * | 2004-06-30 | 2011-04-06 | オーウェンスコーニング製造株式会社 | Long glass fiber reinforced polyamide resin molding material and method for producing the same |
| WO2007097184A1 (en) | 2006-02-27 | 2007-08-30 | Asahi Kasei Chemicals Corporation | Glass-fiber-reinforced thermoplastic resin composition and molded article |
| WO2007125784A1 (en) | 2006-04-27 | 2007-11-08 | Asahi Kasei Chemicals Corporation | Resin composition, and automotive underhood component produced using the resin composition |
| JP5979860B2 (en) * | 2011-12-08 | 2016-08-31 | 旭化成株式会社 | Long fiber reinforced polyamide resin composition pellets and molded products |
| CN117916069A (en) * | 2021-09-06 | 2024-04-19 | 住友化学株式会社 | Thermoplastic resin pellet and method for producing thermoplastic resin pellet |
-
1991
- 1991-12-11 JP JP3327358A patent/JP3040865B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH05162124A (en) | 1993-06-29 |
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