JPH02255751A - Antistatic fluororesin composition - Google Patents
Antistatic fluororesin compositionInfo
- Publication number
- JPH02255751A JPH02255751A JP7943789A JP7943789A JPH02255751A JP H02255751 A JPH02255751 A JP H02255751A JP 7943789 A JP7943789 A JP 7943789A JP 7943789 A JP7943789 A JP 7943789A JP H02255751 A JPH02255751 A JP H02255751A
- Authority
- JP
- Japan
- Prior art keywords
- fluororesin
- fluororesin composition
- titanium oxide
- electrically conductive
- antistatic
- 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.)
- Granted
Links
Landscapes
- Compositions Of Macromolecular Compounds (AREA)
Abstract
Description
【発明の詳細な説明】 ［産業上の利用分野］ 本発明は、帯電防止フッ素樹脂組成物に関ケる。[Detailed description of the invention] [Industrial application field] The present invention relates to antistatic fluororesin compositions.
［従来の技術］
フッ素樹脂は、優れた耐熱性、非粘着性及び耐薬品性な
どを有するので、食品工業及び半導体工業などにおいて
使用されている。しかし、フッ素樹脂は、電気絶縁性が
大きいので、非常に帯電しゃずいという性質を有する。[Prior Art] Fluororesins have excellent heat resistance, non-stick properties, chemical resistance, etc., and are therefore used in the food industry, semiconductor industry, and the like. However, since fluororesin has high electrical insulating properties, it has a property of being extremely resistant to charging.
したがって、フッ素樹脂の帯電を防止する方法として、
例えば種々の導電性充填剤、例えば、カーボンブラック
、金属粉末又は繊維状チタン酸カリウムなどをフッ素樹
脂に添加する方法か提案されている。しかし５、いずれ
の充填剤も満足な結果を与えない。Therefore, as a method to prevent electrification of fluororesin,
For example, methods have been proposed in which various conductive fillers, such as carbon black, metal powder, or fibrous potassium titanate, are added to fluororesins. However, 5, neither filler gives satisfactory results.
カーボンブラックは、フッ素樹脂に添加した場合には、
フッ素樹脂が黒色を呈し、フッ素樹脂に自由な着色がで
きない。また、フッ素樹脂が食品に接触する用途には使
用できない。When carbon black is added to fluororesin,
The fluororesin exhibits a black color, making it impossible to freely color the fluororesin. Furthermore, it cannot be used in applications where fluororesin comes into contact with food.
金属粉末は、フッ素樹脂に対する導電性効果が／ｊ＼さ
く、多量に添加する必要がある。したがって、フッ素樹
脂の機械的強度が低下する。The metal powder has a poor conductivity effect on the fluororesin, and therefore needs to be added in large amounts. Therefore, the mechanical strength of the fluororesin decreases.
繊維状チタン酸カリウム（例えば、住友化学株式会社製
、白色導電性フィラーＦＦ−２０２）は、白色導電性充
填剤である。しかし、繊維状チタン酸カリウムを添加し
たフッ素樹脂は、焼成などの高温に付した場合に、変色
する。Fibrous potassium titanate (for example, white conductive filler FF-202 manufactured by Sumitomo Chemical Co., Ltd.) is a white conductive filler. However, the fluororesin to which fibrous potassium titanate is added changes color when subjected to high temperatures such as firing.
［発明が解決しようとする課題］
本発明の目的は、良好な帯電防止性を有し、白色であり
、焼成後に変色せず、機械的強度が良好であるフッ素樹
脂組成物を提供することにある。[Problems to be Solved by the Invention] An object of the present invention is to provide a fluororesin composition that has good antistatic properties, is white, does not change color after firing, and has good mechanical strength. be.
［課題を解決するだめの手段］
本発明の要旨は、
（ａ）繊維状導電性酸化チタン６〜２５重量％、（ｂ）
酸化亜鉛ｏ、ｉ〜２５重量％、及び（ｃ）フッ素樹脂残
部
から成る帯電防止フッ素樹脂組成物に存する。[Means for solving the problem] The gist of the present invention is as follows: (a) 6 to 25% by weight of fibrous conductive titanium oxide; (b)
The antistatic fluororesin composition consists of 25% by weight of zinc oxide, and (c) the remainder of the fluororesin.
繊維状導電性酸化チタン（ａ）は、酸化チタン繊維の表
面が導電性酸化スズなどの導電性物質で被覆されている
ものである。繊維状導電性酸化チタンはフッ素樹脂組成
物に導電性を与える。繊維状導電性酸化チタンは、通常
、長袖り月〜５０μｌ、好ましくは３〜６μ肩、短軸か
０．０１〜ｌμ次、好ましくは０．０５〜０．１μ度で
あり、軸比（長軸／短軸）は２以上のものである。繊維
状導電性酸化チタンの量は、フッ素樹脂組成物に対して
６〜２５重量％、好ましくは８〜１５重量％である。The fibrous conductive titanium oxide (a) is a titanium oxide fiber whose surface is coated with a conductive substance such as conductive tin oxide. The fibrous conductive titanium oxide provides conductivity to the fluororesin composition. The fibrous conductive titanium oxide usually has a long sleeve length of ~50μl, preferably a 3~6μ shoulder length, a short axis length of 0.01~1μ degrees, preferably 0.05~0.1μ degrees, and an axial ratio (length axis/minor axis) is two or more. The amount of fibrous conductive titanium oxide is 6 to 25% by weight, preferably 8 to 15% by weight, based on the fluororesin composition.
繊維状導電性酸化チタンの量が６重量％よりも少ない場
合には、フッ素樹脂組成物に充分な帯電防止効果が得ら
れない。２５重虫％よりも多い場合には、フッ素樹脂組
成物にクラックが生じやすい。If the amount of fibrous conductive titanium oxide is less than 6% by weight, the fluororesin composition will not have a sufficient antistatic effect. When the amount is more than 25%, cracks are likely to occur in the fluororesin composition.
酸化亜鉛（ｂ）は、通常の酸化亜鉛粉末である。Zinc oxide (b) is a normal zinc oxide powder.
繊維状導電性酸化チタンのみの添加では、フッ素樹脂組
成物は、焼成後に灰色を呈し白色にならないのであるが
、酸化亜鉛の添加によって、導電性を損なわずに、白色
度が付与され、機械的特性、特に圧縮特性が向上する。When only fibrous conductive titanium oxide is added, the fluororesin composition becomes gray after firing and does not become white. However, by adding zinc oxide, whiteness is imparted without impairing conductivity, and mechanical properties are improved. Properties, especially compression properties, are improved.
酸化亜鉛粉末の粒径は、０．０１〜１００μ肩、好まし
くは０．１〜５μ屑である。酸化亜鉛の量は、フッ素樹
脂組成物に対して０．１〜２５重量％、好ましくは１−
１５重量％である。酸化亜鉛の量が０．１重量％よりら
少ない場合には、充分な白色度が得られない。２５％よ
りも多い場合には、フッ素樹脂組成物にクラックが生じ
やすい。The particle size of the zinc oxide powder is 0.01 to 100 microns, preferably 0.1 to 5 microns. The amount of zinc oxide is 0.1 to 25% by weight, preferably 1-25% by weight based on the fluororesin composition.
It is 15% by weight. If the amount of zinc oxide is less than 0.1% by weight, sufficient whiteness cannot be obtained. When the amount is more than 25%, cracks are likely to occur in the fluororesin composition.
フッ素樹脂（Ｃ）は、ポリテトラフルオロエチレン、テ
トラフルオロエチレン及びこれと共重合可能な少なくと
も１種の他のエチレン性不飽和単量体（例えば、エチレ
ン、プロピレンなとのオレフィン類、ヘキサフルオロプ
ロピレン、ビニリデンフルオライド、クロロトリフルオ
ロエチレン、ビニルフルオライドなどのハロゲン化オレ
フィン類、パーフルオロアルキルビニルエーテル類など
）との共重合体、ポリクロロトリフルオロエチレン、ポ
リビニリデンフルオライドなどである。フッ素樹脂は、
粉末又はディスバージョンのいずれであってもよいが、
通常、粉末である。The fluororesin (C) includes polytetrafluoroethylene, tetrafluoroethylene, and at least one other ethylenically unsaturated monomer copolymerizable with the same (for example, olefins such as ethylene and propylene, hexafluoropropylene). , vinylidene fluoride, chlorotrifluoroethylene, halogenated olefins such as vinyl fluoride, perfluoroalkyl vinyl ethers, etc.), polychlorotrifluoroethylene, polyvinylidene fluoride, etc. Fluororesin is
It may be either a powder or a dispersion, but
Usually in powder form.
本発明のフッ素樹脂組成物において、他の成分として、
顔料、ガラス繊維、シリカ、全芳香族ポリエステル（例
えば住友化学工業株式会社製「エコノール」）、ポリイ
ミド、ポリアミドイミド、ポリフェニレンサルファイド
（ＰＰＳ）、ポリエーテルイミド、ポリエーテルサルホ
ン（Ｐ Ｅ Ｓ ）、ポリエーテルエーテルケトン（Ｐ
ＥＥＫ）などを添加してよい。顔料を添加することによ
って、自由に着色することが可能になる。In the fluororesin composition of the present invention, other components include:
Pigment, glass fiber, silica, fully aromatic polyester (e.g. "Econol" manufactured by Sumitomo Chemical Co., Ltd.), polyimide, polyamideimide, polyphenylene sulfide (PPS), polyetherimide, polyethersulfone (PES), polyester Ether ether ketone (P
EEK) etc. may be added. Adding pigments allows for free coloring.
フッ素樹脂組成物の体積固有抵抗（δＶ）が１０８Ω・
ｃｘ以下である場合に帯電防止効果が発現する。The volume resistivity (δV) of the fluororesin composition is 108Ω・
When it is below cx, the antistatic effect is exhibited.
δＶが１０’Ω−ｃｘ以下、特にｉｏ’ 〜ｉｏ７Ω−
ｃｍであることが好ましい。δV is 10'Ω-cx or less, especially io' to io7Ω-
Preferably, it is cm.
本発明のフッ素樹脂組成物は、繊維状導電性酸化チタン
（ａ）、酸化亜鉛（ｂ）及びフッ素樹脂（Ｃ）を単に混
合することによって製造できる。混合方法は、特に限定
されず、混合機を用いた乾式又は湿式混合が可能である
。The fluororesin composition of the present invention can be produced by simply mixing fibrous conductive titanium oxide (a), zinc oxide (b), and fluororesin (C). The mixing method is not particularly limited, and dry or wet mixing using a mixer is possible.
［発明の効果］ 本発明のフッ素樹脂組成物の帯電防止性は良好である。[Effect of the invention] The fluororesin composition of the present invention has good antistatic properties.
本発明のフッ素樹脂組成物の白色は安定しており、焼成
時などの高温、例えば約４００℃に付しても変色するこ
とはない。The white color of the fluororesin composition of the present invention is stable and does not change color even when exposed to high temperatures such as during firing, for example about 400°C.
また、フッ素樹脂組成物は、機械的特性、特に圧縮強度
が良好である。Furthermore, the fluororesin composition has good mechanical properties, particularly good compressive strength.
本発明のフッ素樹脂組成物は、静電気の発生を防止すべ
き種々の用途において使用できる。フッ素樹脂組成物は
、例えば、食品の練りロール、輸送用のシュート・パイ
プ・ベルト、半導体ウェハーの洗浄・乾燥の際にウェハ
ーを収容する治具であるウェハーバスケット等において
使用できる。The fluororesin composition of the present invention can be used in various applications where generation of static electricity is to be prevented. The fluororesin composition can be used, for example, in food kneading rolls, chutes, pipes, and belts for transportation, and wafer baskets that are jigs for storing wafers during cleaning and drying of semiconductor wafers.
［発明の好ましい態様］
以下、実施例を示し、本発明を具体的に説明する。なお
、以下の実施例中、実施例８．９及び１３〜１５が本発
明の態様であり、実施例１〜７、実施例１０〜１２は、
本発明に含まれない比較例である。[Preferred Embodiments of the Invention] The present invention will be specifically described below with reference to Examples. In addition, among the following examples, Examples 8.9 and 13 to 15 are aspects of the present invention, and Examples 1 to 7 and Examples 10 to 12 are
This is a comparative example not included in the present invention.
実施例１〜１５
ミキサー型混合機に、ポリテトラフルオロエチレン（Ｐ
Ｔ Ｆ ＥＸポリフロンＭ−１２（商標）、ダイキン
工業株式会社製）と、第１表に示す種類及び量の充填剤
とを、総量で１に９仕込んだ。室温で１０分間撹拌し、
フッ素樹脂組成物を得た。フッ素樹脂組成物ついて、圧
縮変形性、体積固有抵抗、外観（色彩）及びクツラフ発
生の有無を試験した。Examples 1 to 15 Polytetrafluoroethylene (P
T F EX Polyflon M-12 (trademark) (manufactured by Daikin Industries, Ltd.) and fillers of the type and amount shown in Table 1 were added in a total of 1 to 9 parts. Stir for 10 minutes at room temperature,
A fluororesin composition was obtained. The fluororesin composition was tested for compressive deformability, volume resistivity, appearance (color), and presence or absence of Clutsurf formation.
試験の結果を第１表に示す。The test results are shown in Table 1.
試験は、以下のようにして行った。The test was conducted as follows.
（１）圧縮変形性
予備成形圧力５００ ｋｇ／ｃｆ、 温度３７０℃で５
．５時間焼成後、５０℃／時間で冷却した直径５０■×
長さ５０龍の成形品Ａから加圧平行方向に直径１１．３
ｘｚｘ長さ１０ｕ＋の試料を作成した。(1) Compression deformability Preforming pressure 500 kg/cf, temperature 370℃ 5
．． After baking for 5 hours, cooled at 50℃/hour with a diameter of 50■
A diameter of 11.3 in the pressurized parallel direction from molded product A with a length of 50 mm.
A sample of xzx length 10u+ was prepared.
ＡＳＴＭ Ｄ ６２１−５１に準拠して圧縮変形性を
測定した。測定条件は、圧力２０００ｐｓｉ、温度２４
℃、負荷時間２４時間を採用し、東洋精機株式会社製の
クリープ試験機を使用した。Compressive deformability was measured in accordance with ASTM D 621-51. The measurement conditions were a pressure of 2000 psi and a temperature of 24
℃ and a load time of 24 hours, and a creep tester manufactured by Toyo Seiki Co., Ltd. was used.
（２）体積固有抵抗
予備成形圧力５００ ｋｇ／ｃｍ″、温度３７０℃で３
０分間焼成後、直径５０ＪＩＩＸ厚さｆａｘの試料を作
成した。ハイレスタ表面抵抗計（三菱油化株式会社製）
によって、この試料の表面抵抗（δＳ）を測定し、式：
δ×レシート厚さ（Ｃｍ） ＝δＶ により体積固有抵
抗（δＶ）を算出する。δＶがｌＯ＠Ω・ＣＩ！以下で
あれば、帯電防止効果がある。(2) Volume resistivity 3 at a preforming pressure of 500 kg/cm'' and a temperature of 370°C
After firing for 0 minutes, a sample with a diameter of 50 JIIX and a thickness of fax was prepared. Hiresta surface resistance meter (manufactured by Mitsubishi Yuka Co., Ltd.)
The surface resistance (δS) of this sample was measured by the formula:
Volume resistivity (δV) is calculated from δ×receipt thickness (Cm) = δV. δV is lO@Ω・CI! If it is below, there is an antistatic effect.
（３）外観
圧縮変形性を測定するために製造した成形品Ａの色彩を
目視により判断する。(3) Appearance In order to measure compressive deformability, the color of the manufactured molded article A is visually judged.
（４）クラックの有無
成形品Ａについてクラックの有無を目視により判断する
。(4) Presence or absence of cracks The presence or absence of cracks in molded product A is visually determined.
なお、使用した充填剤は、次のとおりである。The fillers used are as follows.
ＦＴ−１０００・・・繊維状導電性酸化チタン（石原産
業株式会社製、タイベークＦ
Ｔ−１０００Ｘ長軸３〜６μ！、短軸
０．０５〜０，１μｊＩ）
ＦＦ−２０２・・・繊維状導電性チタン酸カリウム（住
友化学株式会社製、白色導電性フィラーＦ
Ｆ−２０２）
酸化亜鉛・・・試薬１級、関東化学製FT-1000...Fibrous conductive titanium oxide (manufactured by Ishihara Sangyo Co., Ltd., Tybake FT-1000X major axis 3~6μ!, short axis 0.05~0.1μjI) FF-202...Fibre conductive titanium oxide Potassium titanate (manufactured by Sumitomo Chemical Co., Ltd., white conductive filler F F-202) Zinc oxide...Reagent grade 1, manufactured by Kanto Chemical Co., Ltd.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1079437A JP2898653B2 (en) | 1989-03-30 | 1989-03-30 | Antistatic fluororesin composition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1079437A JP2898653B2 (en) | 1989-03-30 | 1989-03-30 | Antistatic fluororesin composition |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02255751A true JPH02255751A (en) | 1990-10-16 |
| JP2898653B2 JP2898653B2 (en) | 1999-06-02 |
Family
ID=13689857
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1079437A Expired - Fee Related JP2898653B2 (en) | 1989-03-30 | 1989-03-30 | Antistatic fluororesin composition |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2898653B2 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002060987A1 (en) * | 2001-01-30 | 2002-08-08 | Daikin Industries, Ltd. | Molding resin material for jig for electronic-part cleaning and jig for electronic-part cleaning made therefrom |
| JP2007167771A (en) * | 2005-12-22 | 2007-07-05 | Toray Ind Inc | Air filter media and air filter unit |
| US7553907B2 (en) | 2003-08-29 | 2009-06-30 | Dupont-Mitsui Fluorochemicals Co Ltd | Antistatic articles of melt processible fluoropolymer |
| CN102959035A (en) * | 2010-06-30 | 2013-03-06 | 三洋化成工业株式会社 | Antistatic agent and antistatic resin composition |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6429461A (en) * | 1987-07-24 | 1989-01-31 | Ishihara Mining & Chemical Co | Electrical conductive composition |
-
1989
- 1989-03-30 JP JP1079437A patent/JP2898653B2/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6429461A (en) * | 1987-07-24 | 1989-01-31 | Ishihara Mining & Chemical Co | Electrical conductive composition |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002060987A1 (en) * | 2001-01-30 | 2002-08-08 | Daikin Industries, Ltd. | Molding resin material for jig for electronic-part cleaning and jig for electronic-part cleaning made therefrom |
| US7553907B2 (en) | 2003-08-29 | 2009-06-30 | Dupont-Mitsui Fluorochemicals Co Ltd | Antistatic articles of melt processible fluoropolymer |
| JP2007167771A (en) * | 2005-12-22 | 2007-07-05 | Toray Ind Inc | Air filter media and air filter unit |
| CN102959035A (en) * | 2010-06-30 | 2013-03-06 | 三洋化成工业株式会社 | Antistatic agent and antistatic resin composition |
| CN102959035B (en) * | 2010-06-30 | 2015-04-01 | 三洋化成工业株式会社 | Antistatic agent, antistatic resin composition, molded article, and molded article |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2898653B2 (en) | 1999-06-02 |
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