JPS63227761A - Surface treatment for rubber mixture - Google Patents

Surface treatment for rubber mixture

Info

Publication number
JPS63227761A
JPS63227761A JP6037387A JP6037387A JPS63227761A JP S63227761 A JPS63227761 A JP S63227761A JP 6037387 A JP6037387 A JP 6037387A JP 6037387 A JP6037387 A JP 6037387A JP S63227761 A JPS63227761 A JP S63227761A
Authority
JP
Japan
Prior art keywords
surface treatment
rubber mixture
gas
rubber
treatment
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
JP6037387A
Other languages
Japanese (ja)
Inventor
Sadahiko Sanki
参木 貞彦
Yasuhiko Miyake
三宅 保彦
Morio Hojo
北条 盛夫
Takeshi Natori
名取 武
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.)
Hitachi Cable Ltd
Original Assignee
Hitachi Cable Ltd
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 Hitachi Cable Ltd filed Critical Hitachi Cable Ltd
Priority to JP6037387A priority Critical patent/JPS63227761A/en
Publication of JPS63227761A publication Critical patent/JPS63227761A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE:To carry out the surface treatment of a rubber mixture capable of changing surface properties widely and variously, by forming a surface treatment layer by means of exposure to plasma of Ar gas or a gas composed principally of Ar gas on the surface of a previously molded rubber mixture. CONSTITUTION:A surface treatment layer is formed by exposing the surface of a previously molded rubber mixture consisting of synthetic rubber or natural rubber to plasma excited by using an Ar gas or a gas composed principally of Ar gas and containing N2, O2, H2, etc. Since the above-mentioned surface treatment is a so-called dry-type surface treatment, workability is excellent and the setting of various conditions is facilitated. Further, by this treatment, surface properties can be controlled over a wide range as compared with the cases by conventional chemical treatment. Moreover, when a thin metallic film is formed on the surface treatment layer prepared by the method of this invention, a film thickness can be reduced as compared with the thickness of conventional film and also the mechanical properties such as bending, elongation, etc., are excellent.

Description

【発明の詳細な説明】 [産業上の利用分野] この発明は、ゴム混和物の表面処理方法の改良に関する
ものである。
DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] This invention relates to an improvement in a method for surface treatment of rubber mixtures.

[従来の技術] 一般に、ゴム製品の具備性能としては、強度。[Conventional technology] In general, strength is the characteristic of rubber products.

弾力性、制」緩性などの全体的な性質(バルク性質)の
他、接着性、摩耗性、濡水性、耐候性等の表面性能があ
る。これらの性質は、主としてゴム材質の選択や混和物
の種類と配合量の調整によって決定ずけられる。
In addition to overall properties (bulk properties) such as elasticity and laxity, there are surface properties such as adhesion, abrasion resistance, wettability, and weather resistance. These properties are mainly determined by the selection of the rubber material and the adjustment of the type and amount of the admixture.

ところで、実際のゴム製品における使用性能や製品寿命
の点で上述の表面性能が決定的な役割を果す場合が多く
、その制御のために各種の表面処理方法が利用されてい
る。
By the way, the above-mentioned surface performance often plays a decisive role in the use performance and product life of actual rubber products, and various surface treatment methods are used to control it.

従来、この種の方法としては、化学処理あるいは機械的
な処理方法が知られている。例えば化学処理として表面
処理剤等の各種の処理液を膜形成したり、機械的な処理
として表面の粗さを調整したりしている。
Conventionally, chemical treatment or mechanical treatment methods are known as this type of method. For example, chemical treatments include forming a film using various treatment solutions such as surface treatment agents, and mechanical treatments include adjusting surface roughness.

[発明が解決しようとする問題点] じがし、−従来の廿ム混和物の表面処理方法は、化学処
理あるいは機械的な処理方法であるので、化学処理をし
た場合には、ゴム混和物が化学的に安定なものであると
きには効果が薄く、機械的な処理をした場合には、いわ
ゆる表面粗さの調整であるので、その改質の特性や程度
に限界点がある。
[Problems to be solved by the invention] - Conventional surface treatment methods for rubber mixtures are chemical treatment or mechanical treatment methods. If it is chemically stable, the effect will be weak, and if mechanical treatment is used, it will be an adjustment of so-called surface roughness, so there is a limit to the characteristics and extent of the modification.

このために、ゴム混和物の使用条件が苛酷である場合に
適応できるものではなく、近年特に著しく発達している
ゴム混和物の高性能化、高度化。
For this reason, the performance and sophistication of rubber mixtures, which cannot be applied to cases where the usage conditions of rubber mixtures are severe, has been particularly remarkable in recent years.

多機能化に充分に応えられなくなって来ている。It is no longer possible to sufficiently respond to multifunctionalization.

そこで、この発明の目的は上述の問題点を解消し、広範
囲にかつ多様に表面性能を変化させることが出来るゴム
混和物の表面処理方法を提供することにある。
SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a method for surface treatment of a rubber mixture, which solves the above-mentioned problems and allows the surface properties to be varied over a wide range and in various ways.

[問題点を解決するための手段] この発明に係るゴム混和物の表面処理方法は、予め成形
したゴム混和物の表面に、アルゴンガスまたはアルゴン
ガスを主成分とするプラズマ暴露による表面処理層を形
成することを特徴とする。
[Means for Solving the Problems] The method for surface treatment of a rubber mixture according to the present invention includes forming a surface treatment layer on the surface of a pre-formed rubber mixture by exposure to argon gas or plasma containing argon gas as a main component. It is characterized by forming.

[作  用] ゴム混和物には油分が含まれると共に、無定形炭素粉が
含まれているために、今までは困難と考えられていたプ
ラズマ処理をアルゴンガスまたはアルゴンガスを主成分
とするプラズマ暴露で行うことによって改質処理の効果
を生ぜしめるようにしたものでおる。
[Function] Because rubber mixtures contain oil and amorphous carbon powder, plasma treatment, which was thought to be difficult until now, can be performed using argon gas or plasma containing argon gas as the main component. It is designed to produce the effect of modification treatment by exposure.

[実 施 例] 以下、この発明の実施例を詳細に説明する。[Example] Examples of the present invention will be described in detail below.

先ず、第1実施例について説明する。カーボンブラック
を30重母%含み、油分を3重層%含むクロロプレンゴ
ム混和物とクロロスルホン化ポリエチレンゴム混和物と
エチレンプロピレンゴム混和物との3種のシートを供試
材とし、これらを高周波出力が100Wで励起されたア
ルゴンガスプラズマ(アルゴンガス圧:2X10’丁o
rr)中に約10分間暴露して表面処理層を形成した。
First, a first example will be described. Three types of sheets were used as test materials: a chloroprene rubber mixture containing 30% carbon black and 3% oil, a chlorosulfonated polyethylene rubber mixture, and an ethylene propylene rubber mixture. Argon gas plasma excited at 100W (argon gas pressure: 2 x 10'
rr) for about 10 minutes to form a surface treatment layer.

一方、比較のために上述の3種のシートを供試材として
10%濃度の次亜塩素酸溶液中で約10分間に渡って化
学処理して表面処理層を形成した。
On the other hand, for comparison, the above-mentioned three types of sheets were used as test materials and chemically treated for about 10 minutes in a 10% concentration hypochlorous acid solution to form a surface treatment layer.

これらの処理を施した6種の供試材の表面に蒸溜水を滴
下すると共に、化学処理を施したりプラズマ暴露処理を
施さない3種の供試材の表面にも蒸溜水を滴下し、濡水
性を表面接触角θ(dea)を測定することによって求
めた。この結果を図に示す。
Distilled water was dropped on the surfaces of the six types of test materials that had been subjected to these treatments, and also on the surfaces of the three types of test materials that had not been subjected to chemical treatment or plasma exposure treatment. Aqueous properties were determined by measuring the surface contact angle θ (dea). The results are shown in the figure.

この図から明らかなように、次亜塩素酸による化学処理
では各供試材の濡水性(表面接触角θ)が殆ど変化しな
いが、アルゴンプラズマ暴露処理をした供試材は、クロ
ロプレンゴム混和物とクロロスルホン化ポリエチレンゴ
ム混和物とエチレンプロピレンゴム混和物との3種がい
ずれも著しく表面接触角θが減少し、濡水性が向上した
ことが理解できる。
As is clear from this figure, chemical treatment with hypochlorous acid hardly changes the water wettability (surface contact angle θ) of each sample material, but the sample material exposed to argon plasma has a chloroprene rubber mixture. It can be seen that for all three types, the chlorosulfonated polyethylene rubber mixture and the ethylene propylene rubber mixture, the surface contact angle θ was significantly reduced and the water wettability was improved.

次に第2実施例について説明する。上述同様のクロロプ
レンゴム混和物とクロロスルホン化ポリエチレンゴム混
和物とエチレンプロピレンゴム混和物との3種のシート
(厚みが2mm>を供試材とし、これらを高周波出力が
100Wで励起されたアルゴンガスプラズマ(アルゴン
ガス圧:2×10−’To r r )中に約10分間
暴露した後、高周波出力が200Wで励起されたアルゴ
ンガスプラズマ(アルゴンガス圧:5X10−”Tor
r)中でアルミニウムの1μmの厚みのイオンプレーテ
ィングをして3種の供試材を作成した。
Next, a second embodiment will be described. Three types of sheets (thickness: 2 mm) of the same chloroprene rubber mixture, chlorosulfonated polyethylene rubber mixture, and ethylene propylene rubber mixture as described above were used as test materials, and these were heated with argon gas excited at a high frequency output of 100 W. After being exposed to plasma (argon gas pressure: 2 x 10-' Torr) for about 10 minutes, argon gas plasma (argon gas pressure: 5 x 10-' Tor) excited with a high frequency output of 200 W was applied.
Three types of test materials were prepared by ion plating aluminum to a thickness of 1 μm in a vacuum chamber.

一方、比較のために3種のシートを供試材として10%
濃度の次亜塩素酸溶液中で約10分間に渡って化学処理
して表面処理層を形成した後に、高周波出力が200W
で励起されたアルゴンガスプラズマ(ガス圧:5X10
’Torr)中でアルミニウムを1μmの厚みのイオン
プレーティングをして3種の供試材を作成した。
On the other hand, for comparison, three types of sheets were used as test materials at 10%
After chemically treating the surface in a concentrated hypochlorous acid solution for about 10 minutes to form a surface treatment layer, the high frequency output is 200W.
Argon gas plasma excited by (gas pressure: 5X10
Three types of test materials were prepared by ion plating aluminum to a thickness of 1 μm in a Torr.

これらの処理を施した6種の供試材と、化学処理を施し
たりプラズマ暴露処理を施さないで直接に、高周波出力
が200Wで励起されたアルゴンガスプラズマ(ガス圧
:5X10−5Torr)中でアルミニウムを1μmの
厚みのイオンプレーティングをした3種の供試材を作成
した。
Six types of test materials subjected to these treatments were directly exposed to argon gas plasma (gas pressure: 5 x 10-5 Torr) excited with a high frequency output of 200 W without chemical treatment or plasma exposure treatment. Three types of test materials were prepared by ion plating aluminum with a thickness of 1 μm.

このようにして作られた合訂9種の供試材のそれぞれに
片側1800の繰り返し曲げ試験を行い、アルミニウム
薄膜層が剥離するまでの曲げ回数を測定した。この結果
を次頁の表に示す。
Each of the nine types of sample materials thus produced was subjected to a 1800-cycle bending test on one side, and the number of bends until the aluminum thin film layer peeled off was measured. The results are shown in the table on the next page.

−以下余白一 (剥離までの曲げ回数) 従って、未処理の供試材に直接にアルミニウム薄膜を形
成したものは、アルミニウムの接着性が悪く、少ない曲
げ回数で剥離してしまう。
-The following margin is 1 (Number of bending until peeling) Therefore, when an aluminum thin film is directly formed on an untreated test material, the adhesion of aluminum is poor and it peels off after a small number of bends.

また、化学処理した後にアルミニウム薄膜を形成したも
のは、未処理の場合に比べて接着性が向上しているもの
の、今だ満足すべき状態ではない。
Furthermore, although the adhesion of the aluminum thin film formed after chemical treatment is improved compared to the untreated case, it is still not in a satisfactory state.

また、これらに対してプラズマ処理した後にアルミニウ
ム薄膜を形成したものは、アルミニウムの接着性が著し
く改善され、剥離までの曲げ回数は前2者に比較して大
幅に増加していることが理解できる。
In addition, it can be seen that when an aluminum thin film is formed after plasma treatment, the adhesion of aluminum is significantly improved, and the number of bends before peeling is significantly increased compared to the former two. .

なお、この発明は、上述の実施例に限定されることなく
その要旨を逸脱しない範囲内で種々の変形実施をするこ
とが出来ることは勿論でおる。
It goes without saying that the present invention is not limited to the above-described embodiments, and that various modifications can be made without departing from the scope of the invention.

例えば、ゴム混和物としては合成ゴムのみならず天然ゴ
ムであっても良く、諸種の特性を付与するために無i貿
または有機質の添加物、例えばカーボンブラックを初め
とする無機質粉末や油分等の混和剤を添加したものであ
ってもよい。
For example, the rubber mixture may be not only synthetic rubber but also natural rubber, and in order to impart various properties, organic additives such as inorganic powder such as carbon black or oil may be added. An admixture may be added.

また、ゴムの成分としては、クロロプレンゴム。In addition, the rubber component is chloroprene rubber.

クロロスルホン化ポリエチレンゴム、エチレンプロピレ
ンゴムのみならず、ポリエピクロルヒドリンゴム、スチ
レンブタジェンゴム、ウレタンゴム。
Not only chlorosulfonated polyethylene rubber and ethylene propylene rubber, but also polyepichlorohydrin rubber, styrene-butadiene rubber, and urethane rubber.

二1〜リルブタジエンゴム、天然ゴム等々のあらゆるゴ
ムでおって良いこと勿論である。
Of course, any rubber such as lylbutadiene rubber, natural rubber, etc. may be used.

さらに、表面処理層を形成するためのプラズマ処理用の
ガスとしては、アルゴンガスに限らず、アルゴンガスに
窒素N2.酸素02.水素−等を混合したガスを用いで
もよく、工業的に入手が容易で毒性、安全性等の問題の
ない各種のガス成分が考えられる。
Further, the gas for plasma treatment to form the surface treatment layer is not limited to argon gas, but argon gas and nitrogen N2. Oxygen 02. A gas mixed with hydrogen or the like may be used, and various gas components can be considered that are industrially easily available and have no problems such as toxicity and safety.

また、表面処理層を形成するための気相法としては、イ
オンプレーティング法のみならず真空蒸着法、スパッタ
法等であってもよい。
Further, as the vapor phase method for forming the surface treatment layer, not only the ion plating method but also the vacuum evaporation method, the sputtering method, etc. may be used.

さらに、金属薄膜を形成するための材質としては、アル
ミニウムのみならず、銅、ニッケル、コバルト、銀、金
、スズ、アンチモン、クロム、チタン等々の元素であっ
ても良い。
Furthermore, the material for forming the metal thin film is not limited to aluminum, but may also be elements such as copper, nickel, cobalt, silver, gold, tin, antimony, chromium, titanium, and the like.

[発明の効果] このようにこの発明によれば、いわゆる乾式タイプの表
面処理のために作業性が非常に良好で各種の条件設定も
容易に行うことができる。
[Effects of the Invention] As described above, according to the present invention, the workability is very good because of the so-called dry type surface treatment, and various conditions can be easily set.

また、従来の化学処理に比べて広範囲に渡って表面性能
をコントロールすることが出来ると共にその膜厚も従来
と比べて薄くすることが出来、曲げや伸び等の機械的性
質も優れている。
In addition, surface properties can be controlled over a wider range than with conventional chemical treatments, and the film thickness can be made thinner than with conventional treatments, and mechanical properties such as bending and elongation are also excellent.

これに伴って、曲げ、伸張限界、繰り返し曲げ回数の向
上がなされ、化学的な安定や熱的な安定が向上し寿命と
信頼性が向上するので、曲げや伸張の頻度が高いゴム混
和物に広く対応した製品を得ることができる。
Along with this, the bending and stretching limits and the number of repeated bends are improved, and the chemical stability and thermal stability are improved, which improves the life and reliability, so it is suitable for rubber mixtures that are frequently bent and stretched. You can get products that are widely compatible.

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

図はこの発明に係るゴム混和物の表面処理方法の繰り返
し曲げ特性を示す線図である。
The figure is a diagram showing the repeated bending characteristics of the method for surface treatment of a rubber mixture according to the present invention.

Claims (3)

【特許請求の範囲】[Claims] (1)予め成形したゴム混和物の表面に、アルゴンガス
またはアルゴンガスを主成分とするプラズマ暴露による
表面処理層を形成することを特徴とするゴム混和物の表
面処理方法。
(1) A method for surface treatment of a rubber mixture, which comprises forming a surface treatment layer on the surface of a preformed rubber mixture by exposure to argon gas or plasma containing argon gas as a main component.
(2)プラズマ暴露による表面処理を施した後に、金属
薄膜を気相法で形成して表面処理層を形成することを特
徴とする特許請求の範囲第1項記載のゴム混和物の表面
処理方法
(2) A method for surface treatment of a rubber mixture according to claim 1, characterized in that after surface treatment by plasma exposure, a metal thin film is formed by a vapor phase method to form a surface treatment layer.
(3)気相法がイオンプレーティング法であることを特
徴とする特許請求の範囲第2項記載のゴム混和物の表面
処理方法
(3) A method for surface treatment of a rubber mixture according to claim 2, wherein the gas phase method is an ion plating method.
JP6037387A 1987-03-16 1987-03-16 Surface treatment for rubber mixture Pending JPS63227761A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6037387A JPS63227761A (en) 1987-03-16 1987-03-16 Surface treatment for rubber mixture

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6037387A JPS63227761A (en) 1987-03-16 1987-03-16 Surface treatment for rubber mixture

Publications (1)

Publication Number Publication Date
JPS63227761A true JPS63227761A (en) 1988-09-22

Family

ID=13140265

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6037387A Pending JPS63227761A (en) 1987-03-16 1987-03-16 Surface treatment for rubber mixture

Country Status (1)

Country Link
JP (1) JPS63227761A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5316837A (en) * 1993-03-09 1994-05-31 Kimberly-Clark Corporation Stretchable metallized nonwoven web of non-elastomeric thermoplastic polymer fibers and process to make the same
US5599585A (en) * 1992-03-12 1997-02-04 Kimberly-Clark Corporation Process to make an elastomeric metallized fabric
US5656355A (en) * 1992-03-12 1997-08-12 Kimberly-Clark Corporation Multilayer elastic metallized material

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5599585A (en) * 1992-03-12 1997-02-04 Kimberly-Clark Corporation Process to make an elastomeric metallized fabric
US5656355A (en) * 1992-03-12 1997-08-12 Kimberly-Clark Corporation Multilayer elastic metallized material
US5316837A (en) * 1993-03-09 1994-05-31 Kimberly-Clark Corporation Stretchable metallized nonwoven web of non-elastomeric thermoplastic polymer fibers and process to make the same

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