JPH0496971A - Polyphenylene sulfide resin composition - Google Patents

Polyphenylene sulfide resin composition

Info

Publication number
JPH0496971A
JPH0496971A JP21370490A JP21370490A JPH0496971A JP H0496971 A JPH0496971 A JP H0496971A JP 21370490 A JP21370490 A JP 21370490A JP 21370490 A JP21370490 A JP 21370490A JP H0496971 A JPH0496971 A JP H0496971A
Authority
JP
Japan
Prior art keywords
polyphenylene sulfide
sulfide resin
resin composition
carbon fiber
weight
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
JP21370490A
Other languages
Japanese (ja)
Inventor
Takao Iwata
孝夫 岩田
Kenji Takemura
竹村 憲二
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.)
Resonac Holdings Corp
Original Assignee
Showa Denko KK
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 Showa Denko KK filed Critical Showa Denko KK
Priority to JP21370490A priority Critical patent/JPH0496971A/en
Publication of JPH0496971A publication Critical patent/JPH0496971A/en
Pending legal-status Critical Current

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  • Compositions Of Macromolecular Compounds (AREA)

Abstract

PURPOSE:To obtain the subject polyphenylene sulfide resin composition excellent in heat resistance, impact resistance and toughness such as flexibility, having a low dimensional change and anisotropy and suitable for automobile components, electric-electronic components, etc., by blending a specified carbon fiber in a specified amount. CONSTITUTION:With (A) 50-90wt.%, preferably 60-85wt.% polyphenylene sulfide resin having 10000-40000 molecular weight, (B) 50-10wt.%, preferably 40-15wt.% carbon fiber produced by the gas phase growth method and having 0.05-1mum, preferably 0.1-0.5mum fiber diameter and 1-2000, preferably 5-200 aspect ratio is blended.

Description

【発明の詳細な説明】 〔産業上の利用分野〕 本発明はポリフェニレンスルフィド樹脂組成物に関し、
さらに詳しくは、耐熱性を有すると共に、寸法変化およ
び異方性が小さく、耐衝撃性および柔軟性等の靭性に優
れたポリフェニレンスルフィド樹脂組成物に関する。
[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a polyphenylene sulfide resin composition,
More specifically, the present invention relates to a polyphenylene sulfide resin composition that has heat resistance, small dimensional change and anisotropy, and excellent toughness such as impact resistance and flexibility.

〔従来の技術及び発明が解決しようとする課題〕一般に
ポリフェニレンスルフィド樹脂は、耐熱性、耐薬品性、
難燃性、電気特性等に優れており、自動車部品、電気、
電子部品など種々の成形部品の素材として幅広く利用さ
れている。
[Prior art and problems to be solved by the invention] Polyphenylene sulfide resins generally have good heat resistance, chemical resistance,
It has excellent flame retardancy and electrical properties, and is used in automobile parts, electricity,
It is widely used as a material for various molded parts such as electronic parts.

このようにポリフェニレンスルフィド樹脂は、エンジニ
アリングプラスチックとして幅広く利用されており、ポ
リフェニレンスルフィド樹脂の最大の欠点である耐衝撃
性が低いことも、ガラス繊維等の強化材、またはガラス
ピーズ、マイカ、炭酸カルシウム等を充填材として、単
独または併用して配合させることにより克服してきた。
In this way, polyphenylene sulfide resin is widely used as an engineering plastic, and the biggest drawback of polyphenylene sulfide resin, which is low impact resistance, can be overcome by using reinforcement materials such as glass fiber, glass beads, mica, calcium carbonate, etc. This problem has been overcome by blending these as fillers, either alone or in combination.

しかし、ポリフェニレンスルフィド樹脂にガラス繊維等
の強化材を配合して得られる成形材料は、繊維の配合方
向に平行な方向と垂直な方向で成形収縮の異方性が大き
く、ソリ、ねじれが発生し、また、高温、高湿下での寸
法変化が大きく、異方性がみられる。その為、実際の成
形品では、寸法精度の要求される精密部品には使用でき
なかった。
However, molding materials obtained by blending reinforcing materials such as glass fibers with polyphenylene sulfide resin have large anisotropy in molding shrinkage in directions parallel and perpendicular to the blending direction of the fibers, causing warpage and twisting. In addition, dimensional changes are large under high temperature and high humidity, and anisotropy is observed. Therefore, in actual molded products, it could not be used for precision parts that require dimensional accuracy.

また、上記充填材等を単独で配合した成形材料では、耐
衝撃性が小さく、一方、上記充填材とガラス繊維等の強
化材とを併用した成形材料では、寸法度化が大きいとい
う欠点があった。
In addition, molding materials containing only the above-mentioned fillers have low impact resistance, while molding materials containing the above-mentioned fillers and reinforcing materials such as glass fibers have the drawback of large dimensional increases. Ta.

そこで、本発明者らはポリフェニレンスルフィド樹脂の
本来の特性を損なうことなく、寸法変化や異方性の小さ
い樹脂組成物を開発すべく鋭意研究を重ねた。
Therefore, the present inventors have conducted extensive research in order to develop a resin composition with small dimensional changes and anisotropy without impairing the original properties of polyphenylene sulfide resin.

〔課題を解決する為の手段〕[Means to solve problems]

その結果、ポリフェニレンスルフィド樹脂に特定の炭素
繊維を所定割合で配合することにより、前記課題を解決
できることを見出した。本発明はかかる知見に基いて完
成したものである。
As a result, it has been found that the above-mentioned problem can be solved by blending specific carbon fibers in a predetermined ratio with polyphenylene sulfide resin. The present invention was completed based on this knowledge.

すなわち本発明は (A)ポリフェニレンスルフィド樹脂50〜90重量%
および (B)繊維径0.05〜1am、アスペクト比1〜20
00の炭素繊維50〜10重量%カラなるポリフェニレ
ンスルフィド樹脂組成物を提供するものである。
That is, the present invention comprises (A) a polyphenylene sulfide resin of 50 to 90% by weight.
and (B) fiber diameter 0.05-1 am, aspect ratio 1-20
The purpose of the present invention is to provide a polyphenylene sulfide resin composition containing 50 to 10% by weight of 00 carbon fibers.

本発明で使用される(A)ポリフェニレンスルフィド樹
脂は、特に制限はなく、得られる組成物の要求特性や用
途に応じて各種のものを用いることができる。分子量に
ついては一般に 10.000〜40,000の範囲、好ましくは15.
000〜25,000の範囲である。また、このポリフ
ェニレンスルフィド樹脂は、単独重合体は勿論のこと、
50重量%未満の範囲で他の単量体を重合させた共重合
体を用いることもできる。
The polyphenylene sulfide resin (A) used in the present invention is not particularly limited, and various types can be used depending on the required properties and uses of the resulting composition. The molecular weight generally ranges from 10,000 to 40,000, preferably 15.000.
The range is from 000 to 25,000. In addition, this polyphenylene sulfide resin is not only a homopolymer but also
A copolymer obtained by polymerizing other monomers in an amount less than 50% by weight can also be used.

この共重合に使用し得る他の単量体の結合状態としては
、 べφΣ0舎S −(エーテル結合体)。
The bonding state of other monomers that can be used in this copolymerization is as follows: (ether bond).

÷SO□+ (スルホン結合体)等がある。÷SO□+ (sulfone conjugate), etc.

次に本発明において使用される(B)炭素繊維は、繊維
径0.05〜1μ蒙、好ましくは0.1〜0.5μ謡、
アスペクト比1〜2000.好ましくは5〜200のも
のであれば、特に制限はなく様々な手法により製造した
ものを充当することができる。しかし、そのうち、所謂
気相成長法にて形成したものが特に好適に使用される。
Next, the carbon fiber (B) used in the present invention has a fiber diameter of 0.05 to 1 μm, preferably 0.1 to 0.5 μm,
Aspect ratio 1-2000. Preferably, as long as the number is 5 to 200, there is no particular restriction, and those manufactured by various methods can be used. However, among these, those formed by the so-called vapor phase growth method are particularly preferably used.

この気相成長法によれば、例えば、炭化水素類と特定の
有機金属化合物触媒との混合液を、必要に応じてキャリ
アガスと共に、加熱帯域に導入して炭化水素類を熱分解
し、触媒上で反応させることにより製造した炭素繊維を
、不活性ガス雰囲気下で加熱焼成処理して得られる。こ
の製造法は既に公知の方法であり、例えば特開昭50−
64527号公報。
According to this vapor phase growth method, for example, a mixed solution of hydrocarbons and a specific organometallic compound catalyst is introduced into a heating zone together with a carrier gas if necessary, the hydrocarbons are thermally decomposed, and the catalyst is It is obtained by heating and firing the carbon fiber produced by the above reaction in an inert gas atmosphere. This manufacturing method is already known, for example,
Publication No. 64527.

同60−54998号公報、同6392726号公報等
に開示されている。
It is disclosed in 60-54998, 6392726, and the like.

また、本発明に用いる炭素繊維は、酸性官能基を有して
いてもよく、酸素などの酸化性ガスや硝酸などの酸化剤
で酸化することも可能である。また必要に応じてハンド
リング性を良好にする為に、特公平1−270543号
公報等に記載の方法で炭素繊維を造粒物としても良い。
Further, the carbon fiber used in the present invention may have an acidic functional group, and can be oxidized with an oxidizing gas such as oxygen or an oxidizing agent such as nitric acid. Further, if necessary, in order to improve handling properties, carbon fibers may be made into granules by the method described in Japanese Patent Publication No. 1-270543.

なお、本発明に用いる炭素繊維は、繊維径が0.05μ
誦未満、あるいはアスペクト比が1未満の場合は、充分
な補強効果が得られず、一方、繊維径が1μ−よりも大
きい場合、あるいはアスペクト比が2000を超える場
合では、成形性が悪く、しかも寸法変化、異方性が大き
くなり好ましくない。
Note that the carbon fiber used in the present invention has a fiber diameter of 0.05μ.
If the fiber diameter is less than 1 μm or the aspect ratio is less than 1, a sufficient reinforcing effect cannot be obtained, while if the fiber diameter is larger than 1μ or the aspect ratio is more than 2000, the moldability is poor. This is not preferable because dimensional changes and anisotropy become large.

本発明の樹脂組成物は、上述の如く(A)ポリフェニレ
ンスルフィド樹脂50〜90重量%及び(B)炭素繊維
50〜10重量%を配合してなるものであるが、好まし
くは(A)ポリフェニレンスルフィド樹脂60〜85重
量%及び(B)炭素繊維40〜15重量%の割合で配合
してなる。
As mentioned above, the resin composition of the present invention is formed by blending (A) 50 to 90% by weight of polyphenylene sulfide resin and (B) 50 to 10% by weight of carbon fiber, but preferably (A) polyphenylene sulfide resin. The resin is blended in a ratio of 60 to 85% by weight and (B) carbon fiber in a ratio of 40 to 15% by weight.

ここで、(B)炭素繊維が10重量%未満では、充分な
耐衝撃性を付与することができず、一方、50重量%を
超えると、流動性が悪く、成形困難となり好ましくない
Here, if the carbon fiber (B) is less than 10% by weight, sufficient impact resistance cannot be imparted, whereas if it exceeds 50% by weight, fluidity is poor and molding becomes difficult, which is not preferable.

本発明の樹脂組成物は、上述の(A)(B)二成分を所
定の割合で配合してなるものであるが、さらに必要に応
じて、一般に高分子加工業界で用いられる添加剤を適宜
配合することができる。添加剤の例としては、金属を含
む無機物質や高分子の接着性を向上させるための各種カ
ップリング剤、例えばシランカップリング剤あるいは滑
剤、可塑刑1着色剤、酸化防止剤、紫外線吸収剤、核剤
The resin composition of the present invention is made by blending the above two components (A) and (B) in a predetermined ratio, and if necessary, additives generally used in the polymer processing industry may be added as appropriate. Can be blended. Examples of additives include various coupling agents for improving the adhesion of inorganic substances including metals and polymers, such as silane coupling agents or lubricants, plasticizing colorants, antioxidants, ultraviolet absorbers, nuclear agent.

安定剤等があげられる。Examples include stabilizers.

上記(A)ポリフェニレンスルフィド樹脂、(B)炭素
繊維、さらに必要に応じて用いられる各種の添加剤の混
合は、種々の手法で行うことができるが、一般には通常
用いられている混合機、例えばヘンジエンルミキサ−タ
ンブラ−リポンプレンダー等で行われる。混練機として
は、一般に単軸または二軸の押出機が用いられ、このよ
うな押出機によりペレットが製造される。このペレット
を、圧縮成形、射出成形、押出成形等により任意の形状
に成形して所望の樹脂製品とすればよい。
The above (A) polyphenylene sulfide resin, (B) carbon fiber, and various additives used as necessary can be mixed by various methods, but generally, a commonly used mixer, for example, This is done using a henge-en lumin mixer, tumbler, re-pump blender, etc. As a kneader, a single-screw or twin-screw extruder is generally used, and pellets are produced using such an extruder. The pellets may be molded into any desired shape by compression molding, injection molding, extrusion molding, etc. to produce a desired resin product.

〔実施例〕〔Example〕

次に、実施例及び比較例により本発明をさらに具体的に
説明する。なお、実施例及び比較例において用いられる
試験片は、100mmX 100mmX3mm(厚さ)
の平板である。曲げ強度1曲げ弾性率はASTM D 
 790に準拠して測定した。寸法変化については、試
験片を50°C195%RHのオーブンに入れ、所定の
時装置いた後、取り出し、1時間放置した後、第1図、
第2図に示す様に樹脂の流れ方向および直角方向につい
て、A。
Next, the present invention will be explained in more detail with reference to Examples and Comparative Examples. The test pieces used in Examples and Comparative Examples are 100 mm x 100 mm x 3 mm (thickness).
It is a flat plate. Bending strength 1 Flexural modulus is ASTM D
Measured in accordance with 790. Regarding dimensional changes, the test piece was placed in an oven at 50°C and 195% RH, and after being left in the apparatus for a specified time, it was taken out and left for 1 hour, as shown in Figure 1.
As shown in FIG. 2, regarding the resin flow direction and the perpendicular direction, A.

B、Cおよびa、b、c各々3点ずつノギスにより成形
収縮長さを測定した。また同時にソリについても測定を
行った。ソリの測定法は試験片を固定し、第3図に示す
様にefgh面をXY平面とし、その中心を0点と定義
してe、f、g、i1各コーナーのZ軸座標を測定し、
ソリの大きさを比較した。さらに第4〜6図には、成形
収縮長さの経時変化(それぞれ0日目、2日目、7日目
における値)を測定した結果を、第7〜9図にはソリの
経時変化(それぞれ0日日、2日目、7日目における値
)を測定した結果を示す。
The length of molding shrinkage was measured using calipers at three points each of B, C, a, b, and c. At the same time, we also measured warpage. To measure warpage, fix the test piece, make the efgh plane the XY plane as shown in Figure 3, define the center as the 0 point, and measure the Z-axis coordinates of each corner of e, f, g, and i1. ,
We compared the sizes of the sleds. Furthermore, Figs. 4 to 6 show the results of measuring changes in mold shrinkage length over time (values on day 0, 2, and 7, respectively), and Figs. 7 to 9 show changes in warpage over time (values on day 0, 2, and 7, respectively). The results of measuring the values on day 0, day 2, and day 7 are shown.

なお、実験に使用した二軸同方向押出機は、池貝鉄工■
製のPCM−30を用いた。また、射出成形は、住人重
工■製5YCAP  75を射出成形機を用いて行い、
その射出条件は、金型温度150℃、シリンダー温度3
20℃、冷却時間15秒であった。
The twin-screw codirectional extruder used in the experiment was manufactured by Ikegai Iron Works.
PCM-30 manufactured by Kogyo Co., Ltd. was used. In addition, injection molding was performed using 5YCAP 75 manufactured by Juman Heavy Industries ■ using an injection molding machine.
The injection conditions are: mold temperature 150℃, cylinder temperature 3
The temperature was 20° C. and the cooling time was 15 seconds.

実施例I及び比較例1〜5 ポリフェニレンスルフィド樹脂及び所定の繊維状充填材
を第1表に示す割合で配合し、ヘンシェルミキサーで5
分間、800rpmにて混合し、さらに二軸同方向押出
機を用い、320℃で混練してペレット化した。
Example I and Comparative Examples 1 to 5 A polyphenylene sulfide resin and a predetermined fibrous filler were blended in the proportions shown in Table 1, and mixed with a Henschel mixer for 5
The mixture was mixed at 800 rpm for 1 minute, and then kneaded at 320° C. using a twin-screw codirectional extruder to form pellets.

このペレットを射出成形して得られた試験片の各種物性
を測定した。その結果を第1表に示す。
Various physical properties of test pieces obtained by injection molding the pellets were measured. The results are shown in Table 1.

(以下余白) 〔発明の効果〕 本発明のポリフェニレンスルフィド樹脂組成物は、ポリ
フェニレンスルフィド樹脂の有する特性(耐熱性2機械
的性質)を損なうことなく、異方性、高温高湿下におけ
る寸法変化に代表される寸法精度を大幅に改良したもの
である。
(The following is a blank space) [Effect of the invention] The polyphenylene sulfide resin composition of the present invention exhibits anisotropy and resistance to dimensional changes under high temperature and high humidity without impairing the properties (heat resistance 2 mechanical properties) of polyphenylene sulfide resin. This represents a significant improvement in dimensional accuracy.

従って、本発明の樹脂組成物は、自動車部品。Therefore, the resin composition of the present invention can be used for automobile parts.

電気、電子部品など種々の成形部品の素材として幅広い
利用が期待される。
It is expected to be widely used as a material for various molded parts such as electrical and electronic parts.

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

第1図は、試験片における樹脂の流れ方向の成形収縮長
さの測定部位を示す説明図である。 第2図は、試験片における樹脂の流れ方向と垂直方向の
成形収縮長さの測定部位を示す説明図である。 第3図は、試験片におけるソリの測定部位を示す説明図
である。 第4〜6図は、試験片における成形収縮長さの経時変化
を示すグラフである。 第7〜9図は、試験片におけるソリの経時変化を示すグ
ラフである。
FIG. 1 is an explanatory diagram showing the measurement site of the mold shrinkage length in the flow direction of the resin in the test piece. FIG. 2 is an explanatory diagram showing the measurement portion of the mold shrinkage length in the direction perpendicular to the flow direction of the resin in the test piece. FIG. 3 is an explanatory diagram showing a portion of a test piece where warpage is measured. FIGS. 4 to 6 are graphs showing changes in mold shrinkage length of test pieces over time. FIGS. 7 to 9 are graphs showing changes in warpage in the test piece over time.

Claims (2)

【特許請求の範囲】[Claims] (1)(A)ポリフェニレンスルフィド樹脂50〜90
重量%、および (B)繊維径0.05〜1μm、アスペクト比1〜20
00の炭素繊維50〜10重量% からなるポリフェニレンスルフィド樹脂組成物。
(1) (A) Polyphenylene sulfide resin 50-90
Weight%, and (B) fiber diameter 0.05-1 μm, aspect ratio 1-20
A polyphenylene sulfide resin composition comprising 50 to 10% by weight of No. 00 carbon fibers.
(2)炭素繊維が、気相成長法にて形成されたものであ
る請求項1記載の樹脂組成物。
(2) The resin composition according to claim 1, wherein the carbon fibers are formed by a vapor phase growth method.
JP21370490A 1990-08-14 1990-08-14 Polyphenylene sulfide resin composition Pending JPH0496971A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP21370490A JPH0496971A (en) 1990-08-14 1990-08-14 Polyphenylene sulfide resin composition

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP21370490A JPH0496971A (en) 1990-08-14 1990-08-14 Polyphenylene sulfide resin composition

Publications (1)

Publication Number Publication Date
JPH0496971A true JPH0496971A (en) 1992-03-30

Family

ID=16643607

Family Applications (1)

Application Number Title Priority Date Filing Date
JP21370490A Pending JPH0496971A (en) 1990-08-14 1990-08-14 Polyphenylene sulfide resin composition

Country Status (1)

Country Link
JP (1) JPH0496971A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005325345A (en) * 2004-04-15 2005-11-24 Showa Denko Kk Composite material composition and its manufacturing method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005325345A (en) * 2004-04-15 2005-11-24 Showa Denko Kk Composite material composition and its manufacturing method

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