JP2969142B2 - Rubber goods - Google Patents

Rubber goods

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Publication number
JP2969142B2
JP2969142B2 JP7774790A JP7774790A JP2969142B2 JP 2969142 B2 JP2969142 B2 JP 2969142B2 JP 7774790 A JP7774790 A JP 7774790A JP 7774790 A JP7774790 A JP 7774790A JP 2969142 B2 JP2969142 B2 JP 2969142B2
Authority
JP
Japan
Prior art keywords
silicone rubber
rubber
glass
liquid
packing
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 - Lifetime
Application number
JP7774790A
Other languages
Japanese (ja)
Other versions
JPH03275734A (en
Inventor
誠 澤田
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.)
Momentive Performance Materials Japan LLC
Original Assignee
GE Toshiba Silicones Co 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 GE Toshiba Silicones Co Ltd filed Critical GE Toshiba Silicones Co Ltd
Priority to JP7774790A priority Critical patent/JP2969142B2/en
Publication of JPH03275734A publication Critical patent/JPH03275734A/en
Application granted granted Critical
Publication of JP2969142B2 publication Critical patent/JP2969142B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Description

【発明の詳細な説明】 〔発明の技術分野〕 本発明はゴム物品に関し、詳しくはセラミックスに難
融着性のガラス製魔法ビン用ゴムパッキン、密封容器用
ゴムパッキン等のシリコーンゴム物品およびその製造方
法に関する。
Description: TECHNICAL FIELD OF THE INVENTION The present invention relates to a rubber article, and more particularly, to a silicone rubber article such as a rubber bottle for a glass magic bottle, a rubber container for a sealed container, and the like, which are difficult to adhere to ceramics, and the production thereof. About the method.

〔発明の技術的背景とその問題点〕[Technical background of the invention and its problems]

シリコーンゴムは耐熱性、耐油性、耐寒性、耐薬品
性、電気特性において優れており自動車のエンジンまわ
りのゴム材、パッキン、ガスケット、防振ゴム等に用い
られている。さらに生体に対して無害でもあることから
食品容器のパッキンやチューブ等にも用いられている。
Silicone rubber is excellent in heat resistance, oil resistance, cold resistance, chemical resistance, and electrical properties, and is used for rubber materials around automobile engines, packing, gaskets, vibration-proof rubber, and the like. Further, it is harmless to living organisms, and is therefore used for packing and tubes of food containers.

しかしながら従来の方法で製造したシリコーンゴム物
品はセラミックスと長時間接触させた時にシリコーンゴ
ムとセラミックスが融着してしまうという問題があっ
た。
However, the silicone rubber article manufactured by the conventional method has a problem that the silicone rubber and the ceramic are fused when the silicone rubber article is brought into contact with the ceramic for a long time.

例えばガラス製魔法ビン用ゴムパッキンやガラス製あ
るいは陶磁器製密封容器用ゴムパッキンにおいても、長
時間の使用や保存後に洗浄などのためにゴムパッキンを
はずそうとする時にガラスあるいは陶磁器にシリコーン
ゴムパッキンが融着していてパッキンを破損するという
ことが問題となっていたが、これを防ぐためには保存時
にガラスあるいは陶磁器とシリコーンゴムパッキンの間
に紙をはさんでおく程度の方法しかなく根本的に解決す
る方法はなかった。
For example, when using rubber packing for glass magic bottles or rubber packing for glass or ceramic sealed containers, silicone rubber packing is used for glass or ceramic when removing the rubber packing for long-term use or storage after cleaning. The problem was that the packing was broken due to fusion, but the only way to prevent this was to insert paper between glass or ceramic and silicone rubber packing during storage. There was no solution.

〔発明の目的〕[Object of the invention]

本発明は離型剤を使用するような繁雑な工程を必要と
しないでセラミックスやガラスに難融着性のガラス製魔
法ビン用ゴムパッキン、密封容器用ゴムパッキン等のシ
リコーンゴム物品を提供しようとするものである。
The present invention seeks to provide silicone rubber articles such as glass packing for glass magic bottles and rubber packing for hermetically sealed containers that are difficult to fuse to ceramics and glass without the need for complicated steps such as using a release agent. Is what you do.

〔発明の構成〕[Configuration of the invention]

本発明者らは鋭意検討を重ねた結果、シリコーンゴム
硬化物を液状シラザン化合物で処理することで前記問題
点を解決しえたものである。
As a result of intensive studies, the present inventors have solved the above problem by treating a cured silicone rubber with a liquid silazane compound.

以下、本発明を詳細に説明する。 Hereinafter, the present invention will be described in detail.

本発明に用いられる液状シラザン化合物とは下記の一
般式(1)又は(2)で示される液状物質であり、従来
よりシリル化剤等として使用されていたものである。
The liquid silazane compound used in the present invention is a liquid substance represented by the following general formula (1) or (2), and has been conventionally used as a silylating agent or the like.

(式中、Rは水素原子又は互いに同一又は相異なる置換
又は非置換の1価の炭化水素基、nは3〜5の整数) ここでRとしては、メチル基、エチル基などのアルキ
ル基;フェニル基などのアリール基;ビニル基、アリル
基などのアルケニル基;更にクロロメチル基、3,3,3−
トリフルオロプロピル基などのハロゲン化アルキル基等
が例示される。反応性などから好ましい液状シラザン化
合物としては、ヘキサメチルジシラザン、テトラメチル
ジシラザン、1,3−ジビニルテトラメチルジシラザンが
挙げられ、特にヘキサメチルジシラザンが好ましく使用
される。
(Wherein, R is a hydrogen atom or a substituted or unsubstituted monovalent hydrocarbon group which is the same or different from each other, and n is an integer of 3 to 5) Here, R is an alkyl group such as a methyl group or an ethyl group; Aryl group such as phenyl group; alkenyl group such as vinyl group and allyl group; and chloromethyl group, 3,3,3-
Examples thereof include a halogenated alkyl group such as a trifluoropropyl group. Preferred liquid silazane compounds from the viewpoint of reactivity include hexamethyldisilazane, tetramethyldisilazane, and 1,3-divinyltetramethyldisilazane, and hexamethyldisilazane is particularly preferably used.

本発明において、シリコーンゴムとは硬化してゴム状
となるシリコーンゴム組成物あるいは硬化したシリコー
ンゴム成形物をいう。
In the present invention, the silicone rubber refers to a silicone rubber composition or a cured silicone rubber molded product which is cured to become a rubber.

硬化してゴム状となるシリコーンゴム組成物としては
ミラブル型シリコーンゴム組成物または液状成形用シリ
コーンゴム組成物のいずれでも良い。
As the silicone rubber composition which cures into a rubbery state, either a millable silicone rubber composition or a silicone rubber composition for liquid molding may be used.

ミラブル型シリコーンゴムとは、直鎖状で高重合度の
ポリオルガノシロキサンを主原料とし、それにシリカ系
補強性充填剤、種々の特性を付与するための各種添加剤
を配合してベースコンパウンドを調製し次いで加硫剤を
添加して加熱硬化するタイプのゴムであり、加硫剤とし
ては有機過酸化物またはオルガノハイドロポリシロキサ
ンと白金系触媒とからなる付加反応用硬化剤などが用い
られるのは周知である。液状シリコーンゴム組成物とは
ミラブル型より低粘度のシロキサンベースポリマーを用
いた液状の組成物で硬化機構により付加型、縮合型、紫
外線硬化型などがあり射出成形用に用いられるものがい
わゆるLIM用液状シリコーンゴムといわれることなどは
周知である。
Millable silicone rubber is composed of a linear, high-polymerization degree polyorganosiloxane as the main raw material, a silica-based reinforcing filler, and various additives for imparting various properties, to prepare a base compound. Then, a vulcanizing agent is added and then cured by heating.As the vulcanizing agent, an organic peroxide or a curing agent for an addition reaction composed of an organohydropolysiloxane and a platinum catalyst is used. It is well known. The liquid silicone rubber composition is a liquid composition using a siloxane base polymer with a lower viscosity than the millable type, and it has an addition type, condensation type, ultraviolet curing type, etc., depending on the curing mechanism. It is well known that it is called a liquid silicone rubber.

次に、液状シラザン化合物で処理する硬化シリコーン
ゴムとしては有機過酸化物硬化型シリコーンゴム、付加
反応型シリコーンゴム、射出成形用液状シリコーンゴ
ム、縮合型室温硬化シリコーンゴムなどのいずれでもよ
い。硬化シリコーンゴムの液状シラザン化合物による処
理方法としては、密閉下の空気中あるいは不活性気体の
雰囲気でシリコーンゴム成形物表面積100cm2あたり液状
シラザン化合物を0.1〜10グラム付着あるいは吸着さ
せ、その後常圧または加圧下、室温〜200℃の温度で処
理を行う。処理時間は特に限定されないが処理を充分に
行うために30分以上が好ましい。処理した後、常圧また
は減圧下で、室温〜250℃の温度で未反応物及び反応分
解物を除去することで目的のシリコーンゴム物品が得ら
れる。
Next, the cured silicone rubber treated with the liquid silazane compound may be any of an organic peroxide-cured silicone rubber, an addition-reaction silicone rubber, a liquid silicone rubber for injection molding, and a condensation-type room temperature cured silicone rubber. The treatment method according to a liquid silazane compound of the cured silicone rubber, a silicone rubber molded product surface area 100 cm 2 per liquid silazane compound 0.1 to 10 g deposited or adsorbed in an atmosphere of air or an inert gas under confinement, then normal pressure or The treatment is performed at a temperature of room temperature to 200 ° C. under pressure. The processing time is not particularly limited, but is preferably 30 minutes or more in order to perform the processing sufficiently. After the treatment, unreacted substances and reaction decomposed substances are removed at room temperature to 250 ° C. under normal pressure or reduced pressure to obtain a desired silicone rubber article.

尚、未硬化のシリコーンゴムに液状シラザン化合物を
配合して分散、反応させた後、硬化させて得た液状シラ
ザン化合物で処理済の成形品について、更に上記液状シ
ラザン化合物の処理を施すことも勿論可能であり、その
効果は大きくなる。
After the liquid silazane compound is mixed with the uncured silicone rubber, dispersed and reacted, the molded article that has been treated with the liquid silazane compound obtained by curing is, of course, further treated with the liquid silazane compound. It is possible, and the effect is greater.

〔発明の効果〕〔The invention's effect〕

これらの方法により得られたシリコーンゴム物品はセ
ラミックスと長時間あるいは高温下の接触でも難融着性
である。これまで問題となっていたガラス製魔法ビン用
ゴムパッキン、ガラス製あるいは陶磁器製密封容器用ゴ
ムパッキンの融着に対しては本発明のシリコーンゴム物
品を用いることにより解決される。特に本発明の効果
は、付加反応型または有機過酸化物による硬化機構を有
するシリコーンゴムにおいて顕著である。
The silicone rubber articles obtained by these methods are hardly fusible even with long-time or high-temperature contact with ceramics. The use of the silicone rubber article of the present invention can solve the problem of fusing the rubber packing for a glass magic bottle or the rubber packing for a glass or ceramic sealed container which has been a problem so far. In particular, the effect of the present invention is remarkable in a silicone rubber having an addition reaction type or a curing mechanism using an organic peroxide.

〔実施例〕〔Example〕

次に本発明を実施例により説明する。 Next, the present invention will be described with reference to examples.

実施例1 未硬化シリコーンゴム(東芝シリコーン(株)製、TS
E221−5U)100重量部に2,5−ジメチル−2,5−ビス(t
−ブチルパーオキシ)−ヘキサン0.5重量部を配合し
て、170℃にて10分プレス加硫後、200℃にて4時間アト
加硫を行い、6mm厚のシリコーンゴムゴムシートを作成
した。このゴムシートを密閉容器に入れ、成形品表面積
100cm2あたりヘキサメチルジシラザンを3g分散させた。
この容器を密閉下100℃の温度で24時間保持した後、開
放下で200℃の温度で4時間かけ揮発分の除去を行っ
た。次いで、このゴムシートを2枚のガラス板の間に1k
gf/cm2で圧着し、150℃で72時間及び168時間加熱処理し
た。加熱処理後、2枚のガラス板をはがし、表面へのシ
リコーンゴムの接着状態を評価した。結果は第1表に記
載の通りである。尚、評価は下記の接着の割合(%)に
より行い、この値が小さいほど接着状態が良いことを示
す。
Example 1 Uncured silicone rubber (manufactured by Toshiba Silicone Co., Ltd., TS
E221-5U) 2,5-dimethyl-2,5-bis (t
(Butyl peroxy) -hexane (0.5 part by weight), press vulcanization at 170 ° C. for 10 minutes, and at-vulcanization at 200 ° C. for 4 hours to prepare a 6 mm thick silicone rubber rubber sheet. Put this rubber sheet in a closed container,
3 g of hexamethyldisilazane was dispersed per 100 cm 2 .
After the container was kept at 100 ° C. for 24 hours in a closed state, volatile components were removed under open condition at 200 ° C. for 4 hours. Next, this rubber sheet is placed between two glass plates for 1k.
It was crimped at gf / cm 2 and heat-treated at 150 ° C. for 72 hours and 168 hours. After the heat treatment, the two glass plates were peeled off, and the state of adhesion of the silicone rubber to the surface was evaluated. The results are as shown in Table 1. The evaluation was made based on the following bonding ratio (%), and the smaller the value, the better the bonding state.

A:ガラス表面とシリコーンゴムが接触した全表面積 B:ガラス表面にシリコーンゴムがゴム破壊の状態で接着
している面積 実施例2 未硬化縮合型液状シリコーンゴム(東芝シリコーン
(株)製、TSE350)100重量部に硬化剤としてカルボン
酸スズ系化合物触媒(東芝シリコーン(株)製、CE62)
0.5重量部を配合し、室温にて3日間放置して硬化さ
せ、6mm厚のシリコーンゴムシートを作成した。このゴ
ムシートを実施例1と同様な方法でヘキサメチルジシラ
ザン処理した後、同様に接着試験を行った。結果を第1
表に示す。
A: Total surface area of contact between glass surface and silicone rubber B: Area where silicone rubber adheres to glass surface in a state of breaking rubber Example 2 Uncured condensation type liquid silicone rubber (TSE350, manufactured by Toshiba Silicone Co., Ltd.) 100 parts by weight of tin carboxylate compound catalyst as a curing agent (CE62, manufactured by Toshiba Silicone Co., Ltd.)
0.5 part by weight was blended and left to cure at room temperature for 3 days to prepare a 6 mm thick silicone rubber sheet. After the rubber sheet was treated with hexamethyldisilazane in the same manner as in Example 1, an adhesion test was performed in the same manner. First result
It is shown in the table.

実施例3 未硬化射出成形用シリコーンゴム(東芝シリコーン
(株)製、TLM1405(A)、(B)を170℃、100秒の条
件で射出成形して、6mm厚のシリコーンゴムシートを作
成した。このゴムシートを実施例1と同様な方法でヘキ
サメチルジシラザン処理した後、同様に接着試験を行っ
た。結果を第1表に示す。
Example 3 Silicone rubber for uncured injection molding (TLM1405 (A), manufactured by Toshiba Silicone Co., Ltd., (B)) was injection molded at 170 ° C. for 100 seconds to prepare a 6 mm thick silicone rubber sheet. This rubber sheet was treated with hexamethyldisilazane in the same manner as in Example 1 and then subjected to an adhesion test in the same manner as in Example 1. The results are shown in Table 1.

実施例4 未硬化シリコーンゴム(東芝シリコーン(株)製、TS
E221−5U)100重量部にヘキサメチルジシラザン5重量
部をニーダーにて配合し、温度50℃にて2時間混練し
た。更に温度を150℃に上げ2時間混練を続けた後、室
温まで冷却し、コンパウンドを得た。このコンパウンド
より実施例1と同様な方法でゴムシートを作成し、ヘキ
サメチルジシラザン処理した後、同様に接着試験を行っ
た。結果を第1表に示す。
Example 4 Uncured silicone rubber (manufactured by Toshiba Silicone Co., Ltd., TS
E221-5U) 100 parts by weight of 5 parts by weight of hexamethyldisilazane were mixed in a kneader and kneaded at a temperature of 50 ° C. for 2 hours. The temperature was further raised to 150 ° C., and kneading was continued for 2 hours, and then cooled to room temperature to obtain a compound. From this compound, a rubber sheet was prepared in the same manner as in Example 1, treated with hexamethyldisilazane, and then subjected to an adhesion test in the same manner. The results are shown in Table 1.

比較例1 実施例1においてヘキサメチルジシラザン処理を行わ
ない他は同様にゴムシートを作成し、接着試験を行っ
た。結果を第1表に示す。
Comparative Example 1 A rubber sheet was prepared in the same manner as in Example 1 except that the hexamethyldisilazane treatment was not performed, and an adhesion test was performed. The results are shown in Table 1.

Claims (1)

(57)【特許請求の範囲】(57) [Claims] 【請求項1】ガラス製魔法ビン用ゴムパッキン、ガラス
製あるいは陶磁器製密封容器用ゴムパッキンから選ばれ
るシリコーンゴム成形物を液状シラザン化合物で処理し
たことを特徴とするシリコーンゴム物品。
1. A silicone rubber article obtained by treating a silicone rubber molded product selected from a rubber packing for a magic bottle made of glass and a rubber packing for a sealed container made of glass or ceramics with a liquid silazane compound.
JP7774790A 1990-03-26 1990-03-26 Rubber goods Expired - Lifetime JP2969142B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7774790A JP2969142B2 (en) 1990-03-26 1990-03-26 Rubber goods

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7774790A JP2969142B2 (en) 1990-03-26 1990-03-26 Rubber goods

Publications (2)

Publication Number Publication Date
JPH03275734A JPH03275734A (en) 1991-12-06
JP2969142B2 true JP2969142B2 (en) 1999-11-02

Family

ID=13642509

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7774790A Expired - Lifetime JP2969142B2 (en) 1990-03-26 1990-03-26 Rubber goods

Country Status (1)

Country Link
JP (1) JP2969142B2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5655768B2 (en) * 2011-12-05 2015-01-21 信越化学工業株式会社 Method for preventing re-adhesion of silicone rubber moldings

Also Published As

Publication number Publication date
JPH03275734A (en) 1991-12-06

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