JPS59140253A - Polybutylene terephthalate resin composition - Google Patents
Polybutylene terephthalate resin compositionInfo
- Publication number
- JPS59140253A JPS59140253A JP1440383A JP1440383A JPS59140253A JP S59140253 A JPS59140253 A JP S59140253A JP 1440383 A JP1440383 A JP 1440383A JP 1440383 A JP1440383 A JP 1440383A JP S59140253 A JPS59140253 A JP S59140253A
- Authority
- JP
- Japan
- Prior art keywords
- polybutylene terephthalate
- fiber
- resin
- potassium titanate
- fluororesin
- 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
Links
Landscapes
- Compositions Of Macromolecular Compounds (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は電気回路のスイッチ部品等の摺動部材に用いる
のに好適であり、また剛性、耐熱性等にすぐれたポリブ
チレンテレフタレート樹脂組成物に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a polybutylene terephthalate resin composition that is suitable for use in sliding members such as switch parts of electric circuits and has excellent rigidity, heat resistance, etc.
ポリブチレンテレフタレート樹脂は、電気的。Polybutylene terephthalate resin is electrical.
機械的、熱的等の諸性質に優れ、種々の分野において有
効に用いられているが、従来からその剛性や強度を向上
させるためにガラス繊維をポリブチレンテレフタレート
樹脂に配合することが一般に行われてきた。［７かしな
がらこのように１〜て強化された樹脂をスイッチ部品等
の摺動部材として用いた場合、ガラス繊維によって樹脂
の表面性が悪くなっているために樹脂及びこれと摺動す
る金属の双方が摩耗し、摩耗粉によって回路の作動不良
が生ずるなどの問題があった。そこで摺動部材に用いら
れる樹脂に関しては、剛性１強度をある程度高く有する
ことの他に、摺ｒｉｈＫよる摩耗が少ないことが要請さ
れ、従来からこれについて種々の研究が行われてきた。It has excellent mechanical and thermal properties and is effectively used in various fields, but it has been common practice to blend glass fiber with polybutylene terephthalate resin to improve its rigidity and strength. It's here. [7] However, when a resin reinforced in this way is used as a sliding member such as a switch component, the surface properties of the resin are deteriorated by the glass fibers, so the resin and the metal that slides with it are There were problems such as wear on both sides and malfunction of the circuit due to abrasion powder. Therefore, resins used for sliding members are required to have relatively high rigidity and strength, as well as to be less abrasive due to sliding rihK, and various studies have been conducted in this regard.
しかして近年、ガラス繊維に代えてチタン酸カリウム繊
維をポリブチレンテレフタレート樹脂に配合することが
行われているが、これは摺動特性の向上、強度、剛性の
向上等に対して有効である。しかしながらチタン酸カリ
ウム繊維を配合した樹脂を用いた場合にはガラス繊維配
合にみられる金属側の摩耗は減少するものの、まだ摺動
による樹脂側の摩耗が存するのであり、さらにこれを改
良することが望まれている。However, in recent years, potassium titanate fibers have been blended into polybutylene terephthalate resin instead of glass fibers, which is effective in improving sliding properties, strength, rigidity, etc. However, when a resin containing potassium titanate fibers is used, although the wear on the metal side seen in glass fiber compositions is reduced, there is still wear on the resin side due to sliding, and further improvement is needed. desired.
そこで本発明者らは斯かる状況に艦みて、摺動部材とし
て好適な更すプチ１７ンテレフタレート樹脂を得るため
に鋭意検討を重ねた結果、ポリブチｌノンテレフタレー
ト樹脂に対してチタン酸カリウム繊維とフッ素樹脂の両
者を配合せ［７めることによって、摺動特性に極めて優
れ、かつ強度、剛性も充分な組成物が得られることを見
出し、本発明に到達した。即ち本発明は、ポリブチレン
チレフタレ−１１ｆｆｔ脂にチタン酸カリウム繊維およ
びフッ素樹脂を含有せしめたポリブチレンテレフタレー
ト樹脂組成物を提供するものである。The inventors of the present invention, in view of the above situation, conducted intensive studies to obtain a polybutylene terephthalate resin suitable for sliding members, and found that potassium titanate fiber and polybutyl nonterephthalate resin We have discovered that by blending both fluororesins, a composition with extremely excellent sliding properties and sufficient strength and rigidity can be obtained, and we have arrived at the present invention. That is, the present invention provides a polybutylene terephthalate resin composition in which potassium titanate fiber and a fluororesin are contained in polybutylene terephthalate-11fft fat.
本発明に用いられるチタン酸カリウム繊維とは、平均繊
維長２０〜３０ミクロン、平均繊維径０．１〜０．３ミ
クロンの微細な白色針状の単結晶繊維である。その添加
量は全組成物に対して１〜３０重量％、好ましくは７〜
３０重量％である。なお、樹脂との接着性を高めるため
、公知の表面処理剤を用いて処理を行なうことが出来る
。ここで用いられる表面処理剤の一例を示せばアミノシ
ラン系、エポキシシラン系等の表面処理剤、チタネート
系の表面処理剤等であるが、特にアミノシラン系が良好
である。チタン酸カリウム繊維はガラス繊維と同様なプ
ラスチック強化性能を持ち、しかもガラス繊維に比較し
て表面平滑性、耐摩耗性に優れているため、ポリブチレ
ンテレフタレート樹脂を摺動部材に応用する場合につい
て有用であるが、前記のごとくその効果は未だ十分では
ない。即ち樹脂を電子部品に用いた場合、回路の作動不
良を避けるためにはできるだけ摺動による摩耗の少ない
ことが必要なのである。本発明においては、チタン酸カ
リウム繊維と共にフッ素樹脂が添加されるが、これによ
って摺動特性が極めて優れた樹脂が得られ電子部品等に
おいて好適に用いられるものである。フッ素樹脂として
はクロロジフルオロメタンの熱分解により得られるモノ
マーを重合することにより製造される四フッ化エチレン
樹脂が通常用いられる。また、その他のフッ素樹脂とし
て四フッ化エチレンとの共重合体。The potassium titanate fibers used in the present invention are fine white needle-like single crystal fibers with an average fiber length of 20 to 30 microns and an average fiber diameter of 0.1 to 0.3 microns. The amount added is 1 to 30% by weight, preferably 7 to 30% by weight based on the total composition.
It is 30% by weight. In addition, in order to improve adhesion to the resin, treatment can be performed using a known surface treatment agent. Examples of surface treating agents used here include aminosilane-based, epoxysilane-based surface treating agents, titanate-based surface treating agents, etc., and aminosilane-based surface treating agents are particularly good. Potassium titanate fiber has the same plastic reinforcement performance as glass fiber, and has superior surface smoothness and wear resistance compared to glass fiber, making it useful when applying polybutylene terephthalate resin to sliding parts. However, as mentioned above, the effect is still not sufficient. That is, when resin is used for electronic parts, it is necessary to minimize the wear caused by sliding as much as possible in order to avoid malfunction of the circuit. In the present invention, a fluororesin is added together with potassium titanate fibers, and as a result, a resin with extremely excellent sliding properties is obtained and is suitably used in electronic parts and the like. As the fluororesin, a tetrafluoroethylene resin produced by polymerizing a monomer obtained by thermal decomposition of chlorodifluoromethane is usually used. In addition, copolymers with tetrafluoroethylene are used as other fluororesins.
フッ素樹脂の一部に他の元素を含む樹脂等が使用出来る
。フッ素樹脂の添加量は全組成物に対して１〜３０重量
％、好ましくＵ２〜１ＯＮ量係である。余りに少けの添
加では本発明の所期の目的を達成するに充分でなく、逆
に多量の添加はコスト面で問題があり採用できない。最
も好オしくけ５〜１０重量％の範囲内で添加されるであ
ろう。チタン酸カリウム繊維とフッ素樹脂との組成物中
における割合については、重量係比で３＝１〜１：１の
範囲内で用いられるのが望ましい。Resins containing other elements as part of the fluororesin can be used. The amount of the fluororesin added is 1 to 30% by weight based on the total composition, preferably in the range of U2 to 1ON. Addition of too little amount is not sufficient to achieve the intended purpose of the present invention, and conversely addition of too much amount is problematic in terms of cost and cannot be adopted. Most preferably it will be added in the range of 5-10% by weight. The proportion of potassium titanate fibers and fluororesin in the composition is preferably within the range of 3=1 to 1:1 in terms of weight ratio.
本発明の組成物は、例えば樹脂成分とチタン酸カリウム
繊維およびフッ素樹脂とをプリブレンドし、押出機で押
し出してペレット化し、その後成形機にて成形品とされ
得る。このようにして得られた本発明の組成物は、耐摩
耗性に極めて優れ、また剛性や強度も充分である。さら
には耐熱性も良好であシ、従ってこれらの特性が要求さ
ｎる分野、特に電子部品や自動車部品等について有効に
用いることのできるものである。The composition of the present invention can, for example, be made by pre-blending a resin component, potassium titanate fibers and a fluororesin, extruding it into pellets using an extruder, and then forming it into a molded product using a molding machine. The composition of the present invention thus obtained has excellent wear resistance and sufficient rigidity and strength. Furthermore, it has good heat resistance, and therefore can be effectively used in fields that require these properties, particularly in electronic parts and automobile parts.
実施例１〜４．比較例１〜４
ポリブチレンテレフタレート樹脂（ポリプラスチックス
（株）製ジュラネツクス）にチタン酸カリウム繊維およ
び四フッ化エチレン樹脂パウダーを表に示す割合で加え
、−軸押出機で押し出した後射出成形により試験片を作
成し、各々について比摩耗量１曲げ強さ９曲げ弾性墨お
よび熱変形温度を測定した。結果は次表に示す通りであ
る。比摩耗量は、加圧力１０ ｋｇ／１ｙｎ２．すべり
線速度５０ ｃｍ１８ｅｃ、接触面積を２，０ｃｍ２
とし、銀メッキを施したリン青銅と組成物とのスラス
トタイプでの摩耗量を走行距離６．５Ｋｍ として測
定した。曲げ強さ及び曲げ弾性率はＡＳＴＭ Ｄ７９０
に準じ、また熱変形温度はＡＳＴＭ Ｄ ６４Ｂに準じ
て測定した。また、本発明の効果をより明瞭にするため
に無添加の樹脂等について同様の測定を行った結果を比
較例として次表に併せて示した。これらの結果から、本
発明の組成物が優れた耐摩耗性を有し、かつ充分な機械
的、熱的性質を備えていることがわかる。従って電気回
路のスイッチ部品等の摺動部材として用いた場合でも従
来のように摩耗による障害が問題となるものではなく、
これらの分野において極めて有効に用いられうる。Examples 1-4. Comparative Examples 1 to 4 Potassium titanate fibers and tetrafluoroethylene resin powder were added to polybutylene terephthalate resin (DURANEX, manufactured by Polyplastics Co., Ltd.) in the proportions shown in the table, and the mixture was extruded using a -screw extruder and then injection molded. Test pieces were prepared, and the specific wear amount, bending strength, bending elasticity, and thermal deformation temperature were measured for each piece. The results are shown in the table below. The specific wear amount is a pressing force of 10 kg/1yn2. Sliding linear velocity 50 cm18ec, contact area 2.0cm2
The amount of wear in a thrust type test between silver-plated phosphor bronze and the composition was measured at a running distance of 6.5 km. Bending strength and bending modulus are ASTM D790
The heat distortion temperature was measured according to ASTM D 64B. In addition, in order to clarify the effects of the present invention, similar measurements were performed on additive-free resins, and the results are also shown in the following table as a comparative example. These results show that the composition of the present invention has excellent wear resistance and sufficient mechanical and thermal properties. Therefore, even when used as a sliding member such as a switch component in an electric circuit, failure due to wear does not become a problem as in the past.
It can be used very effectively in these fields.
Claims (1)
ム繊維及びフッ素樹脂を含有せしめてなるポリブチレン
テレフタレート樹脂組成物０ ２ チタン酸カリウム繊維の添加量が全組成物に対し１
〜３０重−ＪＰ１′％である特許請求の範囲第１項記載
の組成物。 ３ フッ素樹脂の添加量が全組成物に対し１〜５ａＴｃ
量チである特許請求の範囲第１項記載の組成物。[Scope of Claims] 1. A polybutylene terephthalate resin composition in which a polybutylene terephthalate resin contains potassium titanate fibers and a fluororesin. 2. The amount of potassium titanate fibers added is 1 to the total composition.
The composition according to claim 1, wherein the composition has a content of ~30 wt-JP1'%. 3 The amount of fluororesin added is 1 to 5aTc to the total composition
2. The composition of claim 1, wherein the composition is
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1440383A JPS59140253A (en) | 1983-01-31 | 1983-01-31 | Polybutylene terephthalate resin composition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1440383A JPS59140253A (en) | 1983-01-31 | 1983-01-31 | Polybutylene terephthalate resin composition |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS59140253A true JPS59140253A (en) | 1984-08-11 |
Family
ID=11860074
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1440383A Pending JPS59140253A (en) | 1983-01-31 | 1983-01-31 | Polybutylene terephthalate resin composition |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59140253A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63213551A (en) * | 1987-02-28 | 1988-09-06 | Sanko Shoji Kk | Resin composition |
| JPS6449088A (en) * | 1987-08-19 | 1989-02-23 | Mitsubishi Electric Corp | Display device |
| US5340645A (en) * | 1987-12-25 | 1994-08-23 | Titan Kogyo Kabushiki Kaisha | Potassium hexatitanate fibers having tunnel structure, process for producing the same, and composite material containing said fibers |
| US6240268B1 (en) * | 1999-01-14 | 2001-05-29 | Canon Kabushiki Kaisha | Gap retaining member and developing device employing the same |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5120252A (en) * | 1974-08-13 | 1976-02-18 | Oiles Industry Co Ltd | Yokatsubuzai narabini sonoseizohoho |
-
1983
- 1983-01-31 JP JP1440383A patent/JPS59140253A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5120252A (en) * | 1974-08-13 | 1976-02-18 | Oiles Industry Co Ltd | Yokatsubuzai narabini sonoseizohoho |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63213551A (en) * | 1987-02-28 | 1988-09-06 | Sanko Shoji Kk | Resin composition |
| JPS6449088A (en) * | 1987-08-19 | 1989-02-23 | Mitsubishi Electric Corp | Display device |
| US5340645A (en) * | 1987-12-25 | 1994-08-23 | Titan Kogyo Kabushiki Kaisha | Potassium hexatitanate fibers having tunnel structure, process for producing the same, and composite material containing said fibers |
| US6240268B1 (en) * | 1999-01-14 | 2001-05-29 | Canon Kabushiki Kaisha | Gap retaining member and developing device employing the same |
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