JPH0668052B2 - Sliding material - Google Patents
Sliding materialInfo
- Publication number
- JPH0668052B2 JPH0668052B2 JP3787986A JP3787986A JPH0668052B2 JP H0668052 B2 JPH0668052 B2 JP H0668052B2 JP 3787986 A JP3787986 A JP 3787986A JP 3787986 A JP3787986 A JP 3787986A JP H0668052 B2 JPH0668052 B2 JP H0668052B2
- Authority
- JP
- Japan
- Prior art keywords
- fluorine
- sliding material
- copolymer
- weight
- parts
- 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 - Fee Related
Links
Landscapes
- Graft Or Block Polymers (AREA)
- Sliding-Contact Bearings (AREA)
- Manufacture Of Macromolecular Shaped Articles (AREA)
- Lubricants (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は、摺動材に関する。更に詳しくは、ガラス繊維
強化テトラフルオロエチレン樹脂とほぼ同等の摩擦係数
を有しかつそれよりもすぐれた耐摩耗性を有する摺動材
に関する。The present invention relates to a sliding material. More specifically, the present invention relates to a sliding material having a friction coefficient substantially equal to that of a glass fiber reinforced tetrafluoroethylene resin and having wear resistance superior to that.
従来、摺動材としてはテトラフルオロエチレン樹脂が最
もすぐれた材料とされており、それの改質も検討されて
いるが、柔軟性の点でこれに優る材料は開発されていな
い。しかしながら、このテトラフルオロエチレン樹脂の
欠点は、成形加工性の点にあり、即ちこの樹脂は切削加
工により製品化しなければならないという問題点を有し
ている。Conventionally, tetrafluoroethylene resin has been considered to be the most excellent material for the sliding material, and modification thereof has been studied, but a material superior to this in terms of flexibility has not been developed. However, a drawback of this tetrafluoroethylene resin is that it has a molding processability, that is, this resin has a problem that it must be manufactured into a product by cutting.
本発明者は、実用上耐摩耗性を改善するためにガラス繊
維で強化して用いられているテトラフルオロエチレン樹
脂よりも更に良好な耐摩耗性を有し、しかも柔軟で成形
加工性の良い材料を求めて種々検討の結果、軟質フッ素
樹脂をベースポリマーとし、ただしこれだけでは摺動性
は得られずまたテトラフルオロエチレン樹脂と比較して
柔軟すぎるので、硬さの調整と耐摩耗性を向上させるた
めにフッ化ビニリデン樹脂を、また摩擦係数を下げるた
めにテトラフルオロエチレン樹脂をそれぞれ配合するこ
とにより、前記の如き所期の目的を達成することができ
た。The present inventor has a material having further better wear resistance than tetrafluoroethylene resin which is used by being reinforced with glass fiber to improve wear resistance in practical use, and is flexible and has good moldability. As a result of various investigations in order to obtain a soft fluororesin as a base polymer, it is not possible to obtain slidability by itself and it is too soft compared with tetrafluoroethylene resin, so it improves hardness adjustment and wear resistance. Therefore, by blending a vinylidene fluoride resin and a tetrafluoroethylene resin for lowering the coefficient of friction, respectively, the intended purpose as described above can be achieved.
〔問題点を解決するための手段〕および〔作用〕 従って、本発明は摺動材に係り、この摺動材は、軟質フ
ッ素樹脂、フッ化ビニリデン樹脂およびテトラフルオロ
エチレン樹脂よりなる。[Means for Solving Problems] and [Operation] Therefore, the present invention relates to a sliding member, which is made of a soft fluororesin, a vinylidene fluoride resin and a tetrafluoroethylene resin.
軟質フッ素樹脂としては、例えば特開昭58-206,615号公
報に記載されるようなもの、具体的には分子内にペルオ
キシ基を含有しかつガラス転移温度が室温以下である含
フッ素弾性共重合体に、その単独重合体または共重合体
が130℃以上の融点を示す結晶性重合体を与える含フッ
素単量体をグラフト共重合せしめたグラフト共重合体あ
るいは分子内にペルオキシ基を含有しかつ融点が130℃
以上である含フッ素結晶共重合体に、その単独重合体ま
たは共重合体が室温以下のガラス転移温度を示す含フッ
素単量体をグラフト共重合体せしめたグラフト共重合体
など、分子内に二重結合およびペルオキシド結合を同時
に有する単量体を使用して、含フッ素結晶性樹脂セグメ
ントと含フッ素ゴムセグメントを共重合させたものが用
いられ、それは市販品（例えばセントラル硝子製品セフ
ラルソフトなど）をそのまま用いることができる。As the soft fluororesin, for example, those described in JP-A-58-206,615, specifically, a fluorine-containing elastic copolymer containing a peroxy group in the molecule and having a glass transition temperature of room temperature or lower. Is a graft copolymer obtained by graft-copolymerizing a fluorine-containing monomer whose homopolymer or copolymer gives a crystalline polymer having a melting point of 130 ° C. or higher, or containing a peroxy group in the molecule and having a melting point of Is 130 ° C
The above-mentioned fluorine-containing crystal copolymer, a homopolymer or a copolymer is a graft copolymer of a fluorine-containing monomer having a glass transition temperature of room temperature or less, such as a graft copolymer, in the molecule A monomer having a heavy bond and a peroxide bond at the same time is used, and a copolymer of a fluorine-containing crystalline resin segment and a fluorine-containing rubber segment is used, which is a commercially available product (for example, Central Glass product Cefralsoft) as it is. Can be used.
摺動材の硬さ、摩擦係数、摩耗量などは、これらの軟質
フッ素樹脂に対するフッ化ビニリデン樹脂およびテトラ
フルオロエチレン樹脂の充填割合によってそれぞれ変化
する。一般には、軟質フッ素樹脂100重量部当り、フッ
化ビニリデン樹脂が約50〜100重量部、好ましくは約60
〜80重量部の割合で、またテトラフルオロエチレン樹脂
が約50〜150重量部、好ましくは約70〜120重量部の割合
で配合して用いられる。The hardness, friction coefficient, wear amount, etc. of the sliding material vary depending on the filling ratio of the vinylidene fluoride resin and the tetrafluoroethylene resin to these soft fluororesins. Generally, about 50 to 100 parts by weight of vinylidene fluoride resin, preferably about 60 parts by weight, per 100 parts by weight of soft fluororesin.
The tetrafluoroethylene resin is used in an amount of about 80 to 80 parts by weight and about 50 to 150 parts by weight, preferably about 70 to 120 parts by weight.
これより多い配合割合でテトラフルオロエチレン樹脂が
用いられると、配合物の流動性が非常に悪化して成形が
困難となり、また上記配合割合のフッ化ビニリデン樹脂
を用いることにより、ガラス繊維強化テトラフルオロエ
チレン樹脂と同等の硬さおよび摩擦摩耗特性が得られる
ようになる。When the tetrafluoroethylene resin is used in a blending ratio higher than this, the fluidity of the blend becomes very poor and molding becomes difficult, and by using the vinylidene fluoride resin in the above blending ratio, glass fiber reinforced tetrafluoroethylene Hardness and frictional wear characteristics equivalent to those of ethylene resin can be obtained.
これらの各成分からなる配合物は、射出成形法など一般
に用いられている成形法を適用することにより、所定形
状の摺動材に成形することができる。The compound made of each of these components can be molded into a sliding material having a predetermined shape by applying a generally used molding method such as an injection molding method.
本発明に係る摺動材は、従来用いられているガラス繊維
強化テトラフルオロエチレン樹脂製のものと比較して、
次のような特徴を有している。Sliding material according to the present invention, as compared with those conventionally used glass fiber reinforced tetrafluoroethylene resin,
It has the following features.
（１）ほぼ同等の摺動性を有する （２）耐摩耗性の点ですぐれている （３）射出成形ができるなど、加工性の点ですぐれてい
る （４）ほぼ同等の柔軟性を有する 〔実施例〕 次に、実施例について本発明を説明する。(1) It has almost the same slidability (2) It is excellent in wear resistance (3) It is excellent in workability such as injection molding is possible (4) It has almost the same flexibility EXAMPLES Next, the present invention will be described with reference to examples.
実施例１ 軟質フッ素樹脂（セントラル硝子製品セフラルソフトG1
50）100重量部、フッ化ビニリデン樹脂80重量部および
テトラフルオロエチレン樹脂70重量部を押出機に供給
し、ペレタイズしたペレットを射出成形し、鈴木式摩擦
摩耗試験機用試験片を作製した。Example 1 Soft Fluorine Resin (Central Glass Product Cefral Soft G1
50) 100 parts by weight, 80 parts by weight of vinylidene fluoride resin and 70 parts by weight of tetrafluoroethylene resin were supplied to an extruder, and pelletized pellets were injection-molded to prepare a test piece for a Suzuki friction and wear tester.
この試験片について、硬さを測定すると共に、それの摩
擦摩耗試験を次の試験条件下において行なった。The hardness of the test piece was measured, and the friction and wear test thereof was performed under the following test conditions.
環 境：室温、無潤滑 面 圧:5kg／cm2 周 速:0.2m／秒 相 手 材:S45C 相手材粗さ:1.5S 時 間:48時間 実施例２ 実施例１において、テトラフルオロエチレン樹脂の配合
量を120重量部に変更し、試験片の作製および測定を行
なった。Environment: Room temperature, unlubricated Surface pressure: 5kg / cm 2 Peripheral speed: 0.2m / sec Phase material: S45C Mating material roughness: 1.5S Time: 48 hours Example 2 In Example 1, tetrafluoroethylene resin The compounding amount was changed to 120 parts by weight, and the test piece was prepared and measured.
比較例 ガラス繊維25％充填テトラフルオロエチレン樹脂につい
て、同様の試験片の作製および測定をおこなつた。Comparative Example A similar test piece was prepared and measured for a tetrafluoroethylene resin filled with 25% glass fiber.
以上の各実施例および比較例での測定結果は、次の表に
示される。The measurement results in each of the above Examples and Comparative Examples are shown in the following table.
フロントページの続き (51)Int.Cl.5 識別記号 庁内整理番号 ＦＩ 技術表示箇所 //(Ｃ０８Ｌ 27/12 27:16 27:18） (Ｃ０８Ｌ 51/04 27:16 27:18） Ｃ１０Ｎ 40:02 50:08 Continuation of the front page (51) Int.Cl. 5 Identification code Office reference number FI technical display area // (C08L 27/12 27:16 27:18) (C08L 51/04 27:16 27:18) C10N 40 : 02 50:08
Claims (4)
よびテトラフルオロエチレン樹脂よりなる摺動材。1. A sliding material comprising a soft fluororesin, a vinylidene fluoride resin and a tetrafluoroethylene resin.
を含有しかつガラス転移温度が室温以下である含フッ素
弾性共重合体に、その単独重合体または共重合体が130
℃以上の融点を示す結晶性重合体を与える含フッ素単量
体をグラフト共重合せしめたグラフト共重合体である特
許請求の範囲第１項記載の摺動材。2. A soft fluororesin containing a peroxy group in the molecule and having a glass transition temperature of not higher than room temperature is a fluorine-containing elastic copolymer, and the homopolymer or copolymer thereof is 130%.
The sliding material according to claim 1, which is a graft copolymer obtained by graft-copolymerizing a fluorine-containing monomer that gives a crystalline polymer having a melting point of not less than ° C.
を含有しかつ融点が130℃以上である含フッ素結晶性共
重合体に、その単独重合体または共重合体が室温以下の
ガラス転移温度を示す含フッ素単量体をグラフト共重合
せしめたグラフト共重合体である特許請求の範囲第１項
記載の摺動材。3. A soft fluororesin is a fluorine-containing crystalline copolymer having a peroxy group in its molecule and a melting point of 130 ° C. or higher, and its homopolymer or copolymer has a glass transition temperature of room temperature or lower. The sliding material according to claim 1, which is a graft copolymer obtained by graft-copolymerizing a fluorine-containing monomer having
量部のフッ化ビニリデン樹脂および約50〜150重量部の
テトラフルオロエチレン樹脂が用いられた特許請求の範
囲第１項、第２項または第３項記載の摺動材。4. A method according to claim 1, wherein about 50 to 100 parts by weight of vinylidene fluoride resin and about 50 to 150 parts by weight of tetrafluoroethylene resin are used per 100 parts by weight of the soft fluororesin. Alternatively, the sliding material according to the third item.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3787986A JPH0668052B2 (en) | 1986-02-21 | 1986-02-21 | Sliding material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3787986A JPH0668052B2 (en) | 1986-02-21 | 1986-02-21 | Sliding material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62195035A JPS62195035A (en) | 1987-08-27 |
| JPH0668052B2 true JPH0668052B2 (en) | 1994-08-31 |
Family
ID=12509820
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3787986A Expired - Fee Related JPH0668052B2 (en) | 1986-02-21 | 1986-02-21 | Sliding material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0668052B2 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0788414B2 (en) * | 1987-08-10 | 1995-09-27 | セントラル硝子株式会社 | Method for producing soft fluororesin |
| JPH0689200B2 (en) * | 1989-05-19 | 1994-11-09 | セントラル硝子株式会社 | Soft fluororesin composition and method for producing the same |
| US5696215A (en) * | 1996-02-28 | 1997-12-09 | Central Glass Company, Limited | Elastic fluorohydrocarbon resin and method of producing same |
| JP4583750B2 (en) | 2003-12-25 | 2010-11-17 | 大豊工業株式会社 | Sliding material |
-
1986
- 1986-02-21 JP JP3787986A patent/JPH0668052B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62195035A (en) | 1987-08-27 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |