JPS59166577A - Liquid gasket - Google Patents
Liquid gasketInfo
- Publication number
- JPS59166577A JPS59166577A JP4090583A JP4090583A JPS59166577A JP S59166577 A JPS59166577 A JP S59166577A JP 4090583 A JP4090583 A JP 4090583A JP 4090583 A JP4090583 A JP 4090583A JP S59166577 A JPS59166577 A JP S59166577A
- Authority
- JP
- Japan
- Prior art keywords
- liquid gasket
- carbonized
- rubber
- diameter
- reinforcing material
- 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
- Sealing Material Composition (AREA)
Abstract
Description
【発明の詳細な説明】
この発明は、シール媒体として塗布して使用するような
液状ガスケットに関し、さらに詳しくは無害で耐熱、耐
圧および耐食性に富み、いかなる用途にも適用できる液
状ガスケットに関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a liquid gasket that is applied and used as a sealing medium, and more particularly to a liquid gasket that is harmless, has high heat resistance, pressure resistance, and corrosion resistance, and can be applied to any purpose.
従来、この秤の液状ガスケットは、常温のみならず高温
、高圧等の悪条件下でも使用できるように、そのガスケ
ットの成分中に短繊維アスベスト（石綿）を若干両含右
させて耐熱性おにび耐圧性をもたせていた。Conventionally, the liquid gasket for this scale has been made heat-resistant by containing a small amount of short fiber asbestos (asbestos) in its ingredients so that it can be used not only at room temperature but also under adverse conditions such as high temperature and high pressure. It also had high strength and pressure resistance.
ところでアスベス１〜は耐食性を低下させる塩素を多量
に含有しているため、原子力関係の設備に−１−
は使用不適であり、また近年発癌物質として問題視され
ており、使用に際しては多くの規制を受けている。By the way, asbeth 1~ contains a large amount of chlorine which reduces corrosion resistance, so it is unsuitable for use in nuclear power related equipment, and in recent years it has been viewed as a problem as a carcinogen, so there are many regulations regarding its use. Is receiving.
そのため、アストベストに代替し得る材料として、ガラ
ス繊維系の無機質繊維を用いるが、９〜２０μの太い繊
維径であり、また剛直であるために耐熱性および耐圧性
の機能をもたせることができなかった。Therefore, glass fiber-based inorganic fibers are used as a material that can be substituted for asbestos, but they have a thick fiber diameter of 9 to 20 μm and are rigid, so they cannot have heat-resistant and pressure-resistant functions. Ta.
そこでこの発明者は、有害物質を有することなく耐熱、
耐圧および耐食性のそれぞれを得ることができる充填補
強材を備えた液状ガスケットを開発した。Therefore, the inventor developed a heat-resistant,
We have developed a liquid gasket with a filled reinforcing material that can provide both pressure resistance and corrosion resistance.
すなわち、この発明は１０μｍ以下の径で０゜５〜５ｍ
ｍの長さを有する炭化１Ｍ維を、液状ガスケツ１〜の充
填補強材として５〜５０％含有したことを特徴とする。In other words, the present invention has a diameter of 10 μm or less and a diameter of 0°5 to 5 m.
It is characterized in that 5 to 50% of carbonized 1M fibers having a length of m are contained as a filling reinforcing material in liquid gaskets 1 to 1.
そしてこの発明によれば、所定の大きさで、かつ炭化処
理した炭化ｍ維を液状ガスケットの充填補強材として用
いることによりアスベストを備えた液状ガスケットと同
等の耐熱と耐圧とに加えて− ２ −
耐食能力を発揮することができ、しかもこの炭化繊維は
、塩素や硫黄等の有害成分がなく、原子力関係等の用途
にも規制を受けることなく使用できるばかりかか、信頼
性の高い液状ガスケットとなる。According to the present invention, by using carbonized m fibers of a predetermined size and carbonized as the filling reinforcing material of the liquid gasket, in addition to the heat resistance and pressure resistance equivalent to that of a liquid gasket containing asbestos - 2 - In addition to exhibiting corrosion resistance, this carbonized fiber does not contain harmful components such as chlorine and sulfur, and can be used in nuclear power-related applications without being subject to regulations. Become.
上述の炭化繊維は、その繊維径が１０μｍを超えてしま
うと剛直性を誘引して耐熱、耐圧強度を低下させるため
、１０７’ｍ以下が好ましい。また繊＃１長さはＱ、５
ｍｍ未満では充填補強材の役目を果さず、５ｍｍを超え
ると液状ガスケットとしての分散不良を生じて不均一組
成となるので０．５〜５ｍｍが好ましい。The above-mentioned carbonized fibers preferably have a diameter of 107'm or less, because if the fiber diameter exceeds 10 μm, it will induce rigidity and reduce heat resistance and compressive strength. Also, the length of fiber #1 is Q, 5
If it is less than 5 mm, it will not function as a filling reinforcing material, and if it exceeds 5 mm, it will result in poor dispersion as a liquid gasket, resulting in a non-uniform composition, so 0.5 to 5 mm is preferable.
上述の炭化￥ｊ＆維は、結合剤等を含む液状ガスケット
の組成中５〜５０％含有させることにより、その液状ガ
スケットの機能を高め得るものであって、５％未満では
耐熱、耐圧性能に乏しく、５０％を超えると粘性抵抗を
増して、ペースト状あるいは液状を早し難くなり、塗布
および展延の点から好ましくない。The above-mentioned carbonized fibers can enhance the function of the liquid gasket by containing it in an amount of 5 to 50% in the composition of the liquid gasket including the binder, and if it is less than 5%, the heat resistance and pressure resistance are poor. If it exceeds 50%, the viscous resistance increases and it becomes difficult to quickly form a paste or liquid, which is undesirable from the viewpoint of coating and spreading.
次にこの炭化繊維を製造する場合は、アクリロ−３−
二トツル、セルロータ等の炭化繊維素材を、まず前処理
として２５０〜３００度Ｃの酸化雰囲気中で０．５〜２
時間加熱保持し、次いで３００〜６００度Ｃの不活性ガ
ス雰囲気中で加熱する。これにより、繊維分子は３次元
構成をとり、不融化されているものの、炭化は低位にあ
り、一般に言う導電性はもたない耐炎ｍｔａとなって１
０μ０１以下の繊維径で、かつ０．５〜５ｍｍの繊維長
さの炭化ａｉｍが設けられる。そして、液状ガスケット
は、この炭化繊維のほかに珪素系ゴム、弗素系ゴム、ア
クリロニトリルゴム等の合成ゴムおよび天然ゴム等のゴ
ム材を主成分とした結合剤が用いられ、これにフェノー
ル樹脂、エポキシ樹脂等の樹脂材および耐熱、耐圧、耐
食、液状等に適した種々の成分を若干量含有させて設け
る。Next, when producing this carbonized fiber, carbonized fiber materials such as acrylo-3-nitotsuru and cell rotor are first pretreated in an oxidizing atmosphere at 250 to 300 degrees
The mixture is heated and held for a time, and then heated in an inert gas atmosphere at 300 to 600 degrees Celsius. As a result, the fiber molecules have a three-dimensional structure, and although they are infusible, the carbonization is at a low level, resulting in a flame-resistant mta that does not have what is generally called electrical conductivity.
A carbonized aim with a fiber diameter of 0μ01 or less and a fiber length of 0.5 to 5 mm is provided. In addition to the carbonized fibers, liquid gaskets use a binder mainly composed of synthetic rubbers such as silicone rubber, fluorine rubber, and acrylonitrile rubber, and rubber materials such as natural rubber. It is prepared by containing a resin material such as resin and various components suitable for heat resistance, pressure resistance, corrosion resistance, liquid state, etc. in small amounts.
このようにして得られたこの発明例の液状ガスケットと
従来例の液状ガスケットとを比して次に説明する。The liquid gasket of this example of the invention thus obtained and the liquid gasket of a conventional example will be compared and explained next.
下表は室温と高温下での耐圧強度の試験結果を示す。The table below shows the test results for compressive strength at room temperature and high temperature.
−４−
（耐圧強圧ｋｇ／ｃ♂ ）
試験方法Ｉ Ｉｓ Ｋ ６８２０）発明例１の組成
発明例２の組成
ＲＴＶシリコンゴム ＮＢＲラテックス５０％
５０％
タルク ２０％ タルク ２０％炭化ｍ紺
１５％ 炭化繊Ｎ １０％ホワイトカーボン フ
ェノール樹脂
エマルジョン
１０％ １０％
アルミ粉末 ５％ ホワイトカーボン−５−
９％
ポリアクリル酸
０．５％
注）トルエン含む 亜硝酸ナトリウム０．５％
なお従来例Ａ、Ｂに使用した液状ガスケットは通常市販
されているものを引用したため、その組成は省略する。-4- (Pressure resistance kg/c♂) Test method I Is K 6820) Composition of invention example 1 Composition of invention example 2 RTV silicone rubber NBR latex 50%
50% talc 20% talc 20% carbonized navy blue
15% Carbonized fiber N 10% White carbon Phenolic resin emulsion 10% 10% Aluminum powder 5% White carbon-5- 9% Polyacrylic acid 0.5% Note) Contains toluene Sodium nitrite 0.5% Conventional example A, The liquid gasket used in B is a commercially available one, so its composition will be omitted.
上表のごとく、炭化ｔｖｎｔを１５％含有した［発明例
１］の液状ガスケットは温度状態にかかわらず高耐圧強
度が得られることが認められた。As shown in the above table, it was confirmed that the liquid gasket of [Invention Example 1] containing 15% carbonized tvnt had high pressure resistance strength regardless of the temperature state.
また、炭化繊維の含有筒が１０％と若干量ない［発明例
２］の場合においても、従来例Ａ、Ｂに比べ充分高耐圧
強度が得られ、高温下においても軟化することのない顕
著な耐熱効果が得られることが認められた。In addition, even in the case of [Invention Example 2], which contains a small amount of carbonized fiber at 10%, a sufficiently high pressure strength is obtained compared to conventional examples A and B, and it is remarkable that it does not soften even at high temperatures. It was confirmed that heat resistance effect can be obtained.
−６−-6-
Claims (1)
る炭化４８Ｍを充填補強材として５〜５０％含有したこ
とを特徴とする液状ガスケット。1. A liquid gasket characterized by containing 5 to 50% of carbonized 48M having a diameter of 1077 m or less and a length of 0.5 to 5 mm as a filling reinforcing material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4090583A JPS59166577A (en) | 1983-03-12 | 1983-03-12 | Liquid gasket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4090583A JPS59166577A (en) | 1983-03-12 | 1983-03-12 | Liquid gasket |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59166577A true JPS59166577A (en) | 1984-09-19 |
| JPH0259188B2 JPH0259188B2 (en) | 1990-12-11 |
Family
ID=12593521
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4090583A Granted JPS59166577A (en) | 1983-03-12 | 1983-03-12 | Liquid gasket |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59166577A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS548251A (en) * | 1977-06-22 | 1979-01-22 | Shinetsu Polymer Co | Oil seal made of synthetic rubber and packing and like |
| JPS57105442A (en) * | 1980-12-23 | 1982-06-30 | Sakagami Seisakusho:Kk | Filler-containing polytetrafluoroethylene molding powder and fluoroplastic molded product |
| JPS57190067A (en) * | 1981-02-14 | 1982-11-22 | Grace W R & Co | Sealing composition |
-
1983
- 1983-03-12 JP JP4090583A patent/JPS59166577A/en active Granted
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS548251A (en) * | 1977-06-22 | 1979-01-22 | Shinetsu Polymer Co | Oil seal made of synthetic rubber and packing and like |
| JPS57105442A (en) * | 1980-12-23 | 1982-06-30 | Sakagami Seisakusho:Kk | Filler-containing polytetrafluoroethylene molding powder and fluoroplastic molded product |
| JPS57190067A (en) * | 1981-02-14 | 1982-11-22 | Grace W R & Co | Sealing composition |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0259188B2 (en) | 1990-12-11 |
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