JPS60143917A - Manufacture of different kind silicon rubber molding product - Google Patents
Manufacture of different kind silicon rubber molding productInfo
- Publication number
- JPS60143917A JPS60143917A JP25058083A JP25058083A JPS60143917A JP S60143917 A JPS60143917 A JP S60143917A JP 25058083 A JP25058083 A JP 25058083A JP 25058083 A JP25058083 A JP 25058083A JP S60143917 A JPS60143917 A JP S60143917A
- Authority
- JP
- Japan
- Prior art keywords
- silicone rubber
- silicon rubber
- mold
- liquid
- solidified
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2083/00—Use of polymers having silicon, with or without sulfur, nitrogen, oxygen, or carbon only, in the main chain, as moulding material
- B29K2083/005—LSR, i.e. liquid silicone rubbers, or derivatives thereof
Landscapes
- Laminated Bodies (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
- Insulating Bodies (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は異種のシリコーンゴムを一体成形してなるシリ
コーンゴム成形品の製造方法に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for producing a silicone rubber molded product by integrally molding different types of silicone rubber.
シリコーンゴム成形品については、形状の異する２種の
成形品または導電性と絶縁性のようｌ二性状の異なる２
種の成形品を組合せてなるものも知られておＩＪ、これ
はそれらが同種のシリコーンゴム成形品であれば爾後の
加圧、加熱で容易ｇニ一体化成形品とすることができる
が、それらが異種のシリコーンゴム成形品である場合に
は両者の接着。Regarding silicone rubber molded products, there are two types of molded products with different shapes or two types with different properties such as conductivity and insulation.
It is also known that IJ is made by combining different types of molded products, and if they are silicone rubber molded products of the same type, they can be easily made into an integrated molded product by subsequent pressurization and heating. Adhesion of the two if they are different types of silicone rubber molded products.
融合が不充分なものとなり、満足すべき一体成形品を得
ることができないという問題点があった。There was a problem in that the fusion was insufficient and a satisfactory integrally molded product could not be obtained.
すなわち、この異種ゴム成形品の一体化５二ついては、
たとえば金型キャビティＩ：硬化したシリコーン成形品
を挿入し、ついでここＣ二はこれとは異種の未硬化のシ
リコーンゴム組成物を仕込んで。In other words, the integration of these dissimilar rubber molded products is as follows:
For example, mold cavity I: A cured silicone molded product is inserted, and then an uncured silicone rubber composition of a different type is charged into mold cavity C2.
加圧、加熱して一体成形品とするか、あるいは未硬化ゴ
ム成形品の一部を切除してここぽ二異種の未硬化ゴムを
挿入し、ついでこれらを加圧加熱して一体成形品とする
方法が採られているが、前者の方法ではこの２柚のゴム
成形品の接着が不充分であるほか−この場合には未硬化
ゴムが金型と硬化ゴムとの間に侵入する。いわゆる裏廻
りが生じるため一体化成形品が外観のみぐるしいもの１
＝なるという不利があり、〜後者の場合には加圧時１：
おける両者の流動性が同じであるため１両者の接合面が
乱れるのみならず、異種部の形状が崩れる（色ずれ）と
いう不利があり、さらＣ二は作業が煩雑になるという欠
点があった。Either pressurize and heat to make an integral molded product, or cut out a part of the uncured rubber molded product and insert two different types of uncured rubber, then press and heat them to make an integral molded product. However, in the former method, the adhesion of the two rubber molded products is insufficient - in this case, uncured rubber enters between the mold and the cured rubber. The appearance of integrated molded products is ugly because so-called backing occurs1.
==, and in the latter case, when pressurized 1:
Since the fluidity of the two is the same, there is a disadvantage that not only the joint surface of the two is disturbed, but also the shape of the different parts is distorted (color shift), and the disadvantage of C2 is that the work is complicated. .
そのため１本発明者らはさきに液状の付加型シリコーン
ゴムな予熱されている金型の凹部に注入して非流動状に
固化させたのち、この金型に加硫剤を添加した加熱硬化
型の硬化性シリコーンゴム組成物を仕込み、金型を閉じ
て加圧、加熱して一体成形品とするという方法を開発し
た（特願昭５８−４４８７９号明細書参照）が、この方
法には液状シリコーンゴムの半硬化状態での制御が必要
とされるし、金型の温度と反応速度との関連からこの硬
化状態の均一化が難しく、かっは場所によっては成形品
の付加型シリコーンゴムと加熱硬化型シリコーンゴムの
接着面が乱れたり色ムラが生じ、さらＣ二はその面の接
着性も不充分になるという欠点があった。Therefore, the present inventors first injected liquid addition-type silicone rubber into the recesses of a preheated mold and solidified it to a non-flowing state, and then added a vulcanizing agent to the mold to form a heat-curing mold. A method was developed in which a curable silicone rubber composition was charged, the mold was closed, and the mold was pressurized and heated to form an integrally molded product (see Japanese Patent Application No. 58-44879). It is necessary to control the semi-cured state of the silicone rubber, and it is difficult to make the cured state uniform due to the relationship between the temperature of the mold and the reaction rate. C2 had the disadvantage that the adhesion surface of the curable silicone rubber was disturbed and uneven coloring occurred, and the adhesiveness of that surface was also insufficient.
本発明はこのような不利を解決した異種、シリコーンゴ
ム成形品の製造方法に関するものであり。The present invention relates to a method for manufacturing a different type of silicone rubber molded product that overcomes these disadvantages.
これは液状の付加型シリコーンゴムと過酸化物加硫型の
液状シリコーンゴムとからなる組成物を予熱されている
金型のキャビティ凹部に注入して非流動状に固化したの
ち、この金型に加硫剤を添加した加熱硬化型の硫化性シ
リコーンゴム組成物を仕込み、金型を閉じて加圧、加熱
して一体成型品とすることを特徴とするものである。This is done by injecting a composition consisting of liquid addition-type silicone rubber and peroxide-vulcanized liquid silicone rubber into the cavity cavity of a preheated mold, solidifying it to a non-flowing state, and then inserting it into the mold. The method is characterized in that a heat-curable sulfurizable silicone rubber composition to which a vulcanizing agent is added is charged, a mold is closed, pressure is applied, and heat is applied to form an integrally molded product.
これを説明すると２本発明者らは異種のシリコーンゴム
からなる一体成形品の製造方法についての研究を進めた
結果、前記した付加型シリコーンゴムと有機過酸物な加
硫剤として含有する加熱硬化型の硬化性シリコーンゴム
組成物との一体成形Ｃ二おいて、この液状の付加型シリ
コーンゴムな過酸化物加硫型の液状シリコーンゴムと−
の混合物とすると、金型温度、その加熱時間などの制御
が不要なるので、これによれば液状シリコーンゴムと公
知のミラブルと呼ばれている加熱硬化型シリコーンゴム
との接着面の乱れ１色ムラが防止され。To explain this, the inventors of the present invention have carried out research on a method for producing an integrally molded product made of different types of silicone rubber, and found that the above-mentioned addition-type silicone rubber and a heat-curing product containing organic peroxide as a vulcanizing agent In integral molding C2 with the curable silicone rubber composition of the mold, the peroxide vulcanized liquid silicone rubber, which is the liquid addition type silicone rubber, and -
When using a mixture of , there is no need to control the mold temperature, heating time, etc., so this method prevents disturbances in the bonding surface between liquid silicone rubber and heat-curing silicone rubber known as ``mirable'', and one color unevenness. is prevented.
その接着面の接着性も改良されるということを見出し、
この液状シリコーンゴムの組成、成形条件などｆ二つい
ての研究を進め本発明を完成させた。We discovered that the adhesive properties of the adhesive surface were also improved.
The present invention was completed by conducting research on the composition of this liquid silicone rubber, molding conditions, etc.
本発明の方法で使用される液状シリコーンゴムは液状の
付加型シリコーンゴムと過酸化物加硫剤の液状シリコー
ンゴムとの混合物とされる。この付加型の液状シリコー
ンゴムは公知のものでよく。The liquid silicone rubber used in the method of the present invention is a mixture of a liquid addition type silicone rubber and a liquid silicone rubber containing a peroxide vulcanizing agent. This addition type liquid silicone rubber may be any known one.
？柄ｌ＋へヱ出＋＋ｌ毒菅、手固ヱｌ＋吐ム１ψ−叱吐
伝Ｔ島和基、たとえばビニル基（＝Ｂｉｙｉ基）を有す
るオルガノポリシロキサンと１分子中にけい素原子と結
合した水素基（＝ＳｉＨ基）をもつオルガノハイドロジ
エンポリシロキサンとからなる。? Handle + Head Extrusion + +l Poisonous Kan, Hand-fixed Ell + Emulsion 1 ψ- Shokiden T Shima Kazuki, for example, organopolysiloxane having a vinyl group (= Biyi group) and hydrogen bonded to a silicon atom in one molecule organohydrodiene polysiloxane having a group (=SiH group).
２５℃における粘度が３００〜５００，０ＯＯｏ８であ
るものであり、これは周期律表第■族ｌ二如する貴金属
、たとえば白金、ロジウム、パラジウムまたはそれらの
化合物、錯塩などを触媒として添加すると、この＝８１
Ｈ基へのミＳｉＶｉＭのｆｔ加反応が開始され、これ５
二よって架橋反応が進行し硬化物となるものである。こ
の組成物を構成する＝ＢＢｉｒ１基をもつオルガノシロ
キサンと＝８１Ｈｇｖもつオルガノハイドロジエンシロ
キサンとはそのいずれかＣ二前記した貴金属系触媒が配
合されており、これらは通常使用時ｌ二所定配合比でこ
れを混合して使用する。いわゆる二液型組成物として市
販されているが、この配合比はその６８１Ｈ基／＝Ｓ
ｉ Ｖ ｉ 共力≦０８〜８０の砺Ｈ用−好ましくは０
．８〜３．０の範囲となるようＩコすればよい。It has a viscosity of 300 to 500,0008 at 25°C, and this is due to the addition of noble metals such as Group I of the Periodic Table II, such as platinum, rhodium, palladium, or their compounds and complex salts, as catalysts. =81
The ft addition reaction of Mi-SiViM to the H group is started, and this 5
2. Therefore, the crosslinking reaction progresses to form a cured product. The organosiloxane having 1 group of BBir and the organohydrodiene siloxane having 81 Hgv that constitute this composition are blended with the above-mentioned noble metal catalyst, and these are mixed at a predetermined mixing ratio during normal use. Use this mixture. It is commercially available as a so-called two-component composition, but the blending ratio is 681H groups/=S
i V i Kyoroku≦08-80 for Tohoku H - preferably 0
．． What is necessary is to adjust I so that it is in the range of 8 to 3.0.
また、この付加型シリコーンゴムｇ二配合される過酸化
物加硫型の液状シリコーンゴムはジメチルホＩＪシａキ
サンまたはジメチルメチルビニルポリシロキサンに有機
過酸化物と必要ｌ二応じ補強剤としての煙８霧質シリカ
または沈降性シリカを添加したものであればよい。この
有機過酸化物としてはベンゾイルパーオキサイド、２，
４−ジクａロペンゾイルパーオキサイド、ジクミルパー
オキサイド、ジターシャリ−ブチルパーオキサイド、タ
ーシャリ−ブチルパーベンゾエート、２．５−ジメチル
−２，５−ビス（ｔ、−ブチルオキシ）ヘキサンなどが
例示されるが、これはオルガノポリシロキサンｉ二対し
０．１〜５重量部添加すればよい。In addition, this addition type silicone rubber (g2) is a peroxide vulcanized liquid silicone rubber compounded with dimethylfoiloxane or dimethylmethylvinyl polysiloxane with organic peroxide and smoke (as required) as a reinforcing agent. Any material containing atomized silica or precipitated silica may be used. Examples of this organic peroxide include benzoyl peroxide, 2,
Examples include 4-dichloropenzoyl peroxide, dicumyl peroxide, ditertiary-butyl peroxide, tertiary-butylperbenzoate, and 2,5-dimethyl-2,5-bis(t,-butyloxy)hexane. This may be added in an amount of 0.1 to 5 parts by weight based on organopolysiloxane i.
上記した液状付加型シリコーンゴムと過酸化物加硫型の
液状シリコーンとの配合比は、この後者の配合比が２０
重！チ以下では反応速度が遅くなって成形時間が長びく
こととなり、これが８０重駕チ以上Ｉ：なると反応速度
が早すぎてゲル発生の原因となりやすく、さらにはミラ
ブルとの接着不良の原因となる０）で−これらは８０
： ２０〜２゜：８（］の範囲、ｑ寺ｇ二は６０：４０
〜４０３６００−＋範囲とすることがよい。The blending ratio of the above-mentioned liquid addition type silicone rubber and peroxide vulcanized liquid silicone is such that the latter has a blending ratio of 20%.
Heavy! If the reaction rate is less than 80kg, the reaction rate will be slow and the molding time will be prolonged, and if it is 80kg or more, the reaction rate will be too fast and easily cause gel generation, and furthermore, it will cause poor adhesion with the millable. ) - these are 80
: Range of 20~2゜:8(), q temple g2 is 60:40
It is preferable to set the range to 403600-+.
本発明の異種シリコーンゴム成形体σ〕製造は。Production of the dissimilar silicone rubber molded article σ of the present invention is as follows.
まず上記した液状シリコーンゴム組成物を予熱されてい
る金をのキャビティ凹部に注入するのであるが、この注
入はその成形体への気泡の混入を防止すると共にこの液
状シリコーンゴム組成物が金型の偶Ｃ二まで流れ込むよ
う５ニノズルを用いて２０〜２００に９７ａｄの加圧下
に行なうことがよい。またこの場合の金型の予熱は５０
〜１８０℃とすればよく、とれによればこの金型内にお
いて液状シリコーンゴム納成物は半硬化状ｇ二固化され
るが。First, the liquid silicone rubber composition described above is injected into the cavity of the preheated gold mold. It is preferable to carry out the process under pressure of 20 to 200 to 97ad using a 5-ni nozzle so that the flow reaches even C2. In addition, the mold preheating in this case is 50
The temperature may be 180 DEG C., and according to the author, the liquid silicone rubber product is solidified into a semi-hardened state in this mold.
この組成物は過酸化物加硫型のシリコーンゴムを含有し
ているので反応速度が早くなり、成形時間が短縮される
ほか、キャビティ内で得られる成形体が完全硬化物であ
つ２ても爾後Ｃ二おけるミラブルが
と完全ｇ二接着するという効果、Ｖ゛加される。なお。Since this composition contains peroxide-vulcanized silicone rubber, the reaction rate is faster and the molding time is shortened.In addition, the molded product obtained in the cavity is completely cured and can be cured even after the molding process. The effect that the millable in C2 completely adheres to G2 is added. In addition.
液状シリコーンゴム組成物を金型Ｃ二注入するためのノ
ズルは、この圧入されたシリコーンゴム組成物が固化す
るまでの間、またノズルを下型から取り外し中Ｃ二こ＼
ｆ二滞留している液状シリコーンゴム組成物が固化しな
いよう【ニするためｇ二強制冷却機構を備えたものとす
ることがよい。The nozzle for injecting the liquid silicone rubber composition into the mold C2 is used until the press-fitted silicone rubber composition solidifies, and while the nozzle is removed from the lower mold C2.
In order to prevent the remaining liquid silicone rubber composition from solidifying, it is preferable to provide a forced cooling mechanism.
本発明の方法は成形用下型内の液状シリコーンゴムが上
記したようｌ：常圧で流動しない固化状態となったとき
に二、ここに加熱硬化性のシリコーンゴム組成物を仕込
んで上型を閉じて加熱、加圧するのであるが−ここに使
用される加熱硬化型の硬化性シリコーンゴム組成物は分
子鎖末端に水酸基またはトリメチルシリル基、ジメチル
ビニルシリル基をもつオルガノポリシロキサン、分子中
にビニル基などの官能基をもつオルガノポリシロキサン
に有機過酸化物などの加硫剤を配合した一般にミラブル
と呼ばれている重膜のものでよく、特Ｃ二限足されるも
のではない。この加熱、加圧ｇ二よってこの加熱硬化性
シリコーンゴム組成物はこれに配合されている加硫剤の
作用によって硬化するが。The method of the present invention is that when the liquid silicone rubber in the lower mold becomes a solidified state that does not flow under normal pressure, a heat-curable silicone rubber composition is charged therein and the upper mold is replaced. The heat-curable silicone rubber composition used here is an organopolysiloxane with a hydroxyl group, trimethylsilyl group, or dimethylvinylsilyl group at the end of the molecular chain, and a vinyl group in the molecule. A heavy film material generally called "mirable", which is made by blending an organopolysiloxane having a functional group such as a vulcanizing agent such as an organic peroxide, may be used, and the special C2 is not required. Due to this heating and pressurization, the heat-curable silicone rubber composition is cured by the action of the vulcanizing agent blended therein.
この際、液状シリコーンゴム組成物の固体状成形体もこ
の加硫剤によって半硬化状態から完全硬化物ｌ二共加硫
され、この同時加硫によって液状シリコーンゴム組成物
から作られた成形体と熱硬化性シリコーンゴム組成物か
ら作られた成形体とが完全ｌ二接着した一体成形体にな
るという効果が与えられる。なお、この加圧加熱条件は
ここα：使用する加熱硬化型シリコーンゴム、組成物の
種類、粘度などｇ二よって相違するが、これは」１１１
常５〜５０に９／Ｊ、好ましくは１０〜３０ Ｋｙ／
ｃ、＋Ｉ−１２０〜２００℃の範囲とすればよく−この
加硫はさらに必要に応じこの温度を１５０〜２００℃と
して二次加硫を行なわせてもよい。At this time, the solid molded product of the liquid silicone rubber composition is also co-vulcanized from a semi-cured state to a fully cured product by this vulcanizing agent, and through this simultaneous vulcanization, the solid molded product made from the liquid silicone rubber composition and This provides the effect that the molded product made from the thermosetting silicone rubber composition becomes an integrally molded product that is completely adhered to the molded product. The pressure and heating conditions differ depending on the heat-curing silicone rubber used, the type of composition, the viscosity, etc.
Usually 5 to 50 to 9/J, preferably 10 to 30 Ky/
c, +I - The temperature may be in the range of 120 to 200 DEG C. - This vulcanization may further be carried out at a temperature of 150 to 200 DEG C., if necessary, for secondary vulcanization.
つぎにこれを添付の図面に図示した本発明の成形装置を
使用する方法によって説明するが、Ｍ１図は本発明の方
法に使用される装置の縦断面要因。Next, this will be explained by a method using the molding apparatus of the present invention illustrated in the accompanying drawings, where Figure M1 is a longitudinal cross-sectional view of the apparatus used in the method of the present invention.
年２図は金型中の、加熱加圧状態を示す縦断面図。Figure 2 is a vertical cross-sectional view showing the heated and pressurized state inside the mold.
第３図は本発明方法で得られた異種シリコーンゴム成形
体の縦断面図を例示したものである。FIG. 3 illustrates a longitudinal cross-sectional view of a dissimilar silicone rubber molded article obtained by the method of the present invention.
第１図（二足す本発明の異種シリコーンゴム成形体製造
装置は、液状ゴム受入れ凹部２を有する下型ｌ、この下
型に液状シリコーンゴム組成物を圧入する。冷却機構４
を備えたノズル８．このノズルｌ二液状シリコーンゴム
組成物６を供給する加圧し得る液状シリコーンゴム容器
５．熱硬化性シリコーンゴム成形体を形成する上型７お
よびこの下を、上型を加熱加圧する装置（図示せず）と
からなるものであり、これを使用する異種シリコーンゴ
ム成形体の製造は、まず、この下型１にノズル部９から
加圧して液状シリコーンゴム組成物６をノズル８のマニ
ホールド＋０１＝流入させ、これをその分配孔１１．ノ
ズル孔１２を経て液状シリコーンゴム受入れ凹部２（：
圧入すると、これは下型１が１００〜１４０℃に予熱さ
れているので加圧下では流動するが常圧下では流動しな
い状態に固化されて成形体１３を形成する。なお、この
際。FIG. 1 (2+) The apparatus for manufacturing a heterogeneous silicone rubber molded body of the present invention includes a lower mold l having a liquid rubber receiving recess 2, and a liquid silicone rubber composition is press-fitted into this lower mold. Cooling mechanism 4
Nozzle 8. This nozzle l is a pressurizable liquid silicone rubber container 5 for supplying the two-liquid silicone rubber composition 6. It consists of an upper mold 7 for forming a thermosetting silicone rubber molded body and a device (not shown) that heats and presses the upper mold below the upper mold 7, and the production of a different type of silicone rubber molded body using this is as follows: First, the liquid silicone rubber composition 6 is caused to flow into the lower mold 1 from the nozzle part 9 by applying pressure to the manifold +01 of the nozzle 8, and the liquid silicone rubber composition 6 is introduced into the distribution hole 11 of the lower mold 1. Liquid silicone rubber receiving recess 2 (:
When press-fitted, since the lower mold 1 has been preheated to 100 to 140° C., the molded body 13 is solidified to a state where it flows under pressure but does not flow under normal pressure. In addition, at this time.
ノズル８のマニホールド１０１分配孔１１．ノズル孔１
２（二充満している液状シリコーンゴム組成物は下型ｌ
からの熱によって固化しないようｌ二冷動水注入ロ１４
．出口１５を有する冷却機構４で冷却される。液状シリ
コーンゴム組成物の固化で成形体１３が得られたら、電
磁弁８を閉じてノズル３を下型１から取Ｉ）外し、つい
でこの下型１の上に加硫剤を添加した塊状の熱硬化性シ
リコーンゴム組成物１６を仕込み、第２図に示したよう
に上型７を取りつけて１８０〜２００℃に加熱すると共
（ニーＩＱ〜３０Ｋｒ／ａＩＩに加圧して熱硬化性シリ
コーンゴムと固化している液状シリコーンゴムとを共加
做さぜればよく、これによれば第３図？二足したように
液状シリコーンゴムの硬化物１７と熱硬化性シリコーン
ゴムの硬化物１８とが一体成形された目的とする異軸シ
リコーンゴム成形体１豆を得ることができる。Manifold 101 distribution hole 11 of nozzle 8. Nozzle hole 1
2 (The liquid silicone rubber composition filled with the lower mold l
In order to prevent solidification due to the heat from the
．． It is cooled by a cooling mechanism 4 having an outlet 15. When the molded body 13 is obtained by solidifying the liquid silicone rubber composition, the solenoid valve 8 is closed and the nozzle 3 is removed from the lower mold 1. The thermosetting silicone rubber composition 16 is charged, and the upper mold 7 is attached as shown in FIG. It is sufficient to mix the solidified liquid silicone rubber together, and according to this method, the cured product 17 of the liquid silicone rubber and the cured product 18 of the thermosetting silicone rubber are combined as shown in Fig. 3. One bean of the desired heteroaxial silicone rubber molded body integrally molded can be obtained.
なお、この場合の液状シリコーンゴム組成物と熱硬化性
シリコーンゴム組成物はそのいずれかを導電性のものと
しても、また異色の組成物としてもよく、たとえば液状
シリコーンゴム組成物をカーボンブラックなどを配合し
た黒色の導電性組成物とし、熱硬化性シリコーンゴム組
成物を灰色の絶縁性組成物とすればこれらが一体成形さ
れた電子部品用接点素子を容易に得ることができるとい
う有利性が与えられる。In this case, either the liquid silicone rubber composition or the thermosetting silicone rubber composition may be conductive, or a composition of a different color may be used. For example, the liquid silicone rubber composition may be mixed with carbon black or the like. If the blended black conductive composition is made into a gray insulating composition and the thermosetting silicone rubber composition is made into a gray insulating composition, it is advantageous that it is possible to easily obtain a contact element for electronic parts in which these are integrally molded. It will be done.
つぎに本発明方法の実施例をあげるが一例中の部はＭ播
部を、また粘度は２５℃での測定値を示したものである
。Next, examples of the method of the present invention will be given. In the examples, the part indicates the M seeding part, and the viscosity indicates the measured value at 25°C.
実施例
１．００ （１
第１図に二足した装置を使用し、木花と璽６）付加型液
状クリコーンゴム・ＫＥ−１９２５１Ｊｊ越化学工業（
株）製画品名〕１００部に白色顔料チタンホワイト５部
を混合したものと一粘度１０．０００ｃＳの分子鎖末端
がジメチルビニルシロキシ基で封鎖されたジメチルポリ
シロキサン（ビニル基金Ｍ０．３モルチ）１００部Ｃ二
比表面積が２００ ｍ”／ Ｉの煙霧質シリカ３０音１
５．白色顔料だ過酸化物加硫型の液状シリコーンゴムと
を混合し、これを成形用下型の凹部とノズルとで構成さ
れる容積１ ｃｃ のキャピテイｇ二１０Ｋｙ／ａｌの
加圧下？二０．５ｃｏ 出入し、この下型を１７０℃に
加熱してＩＪ％、このシリコーンゴムが固化してからノ
ズルを取り外し、ついでこの下型上に加熱１曲化性シリ
コーンゴム・Ｋｇ−９５１Ｕ（信越化学工粟（株〕製間
品名〕１００部＆＝硬化触媒０−８（同社製商品名）２
部を添加したもの２０９を仕込み、上型を取りつけてか
ら１７０℃ｇ二昇温させ。Example 1.00 (1 Using the device added to the one shown in Fig. 1, Kihana and Seal 6) Addition type liquid cricon rubber KE-19251Jj Etsu Chemical Industry (
Co., Ltd. product name] 100 parts mixed with 5 parts of white pigment titanium white and 100 parts of dimethylpolysiloxane (Vinyl Foundation M0.3 molti) with a viscosity of 10.000 cS and whose molecular chain ends are blocked with dimethylvinylsiloxy groups. Part C Fumed silica with a specific surface area of 200 m”/I 30 notes 1
5. A white pigment is mixed with a peroxide-vulcanized liquid silicone rubber, and this is mixed under a pressure of 10 Ky/al in a capacity of 1 cc consisting of a concave part of a lower mold and a nozzle. Heat the lower mold to 170°C, remove the nozzle after the silicone rubber has solidified, and then heat the lower mold to 1 bendable silicone rubber Kg-951U ( Shin-Etsu Chemical Co., Ltd. Product name: 100 parts & = Curing catalyst 0-8 (Product name manufactured by the company) 2
209 was added, and after attaching the upper mold, the temperature was raised to 170°C.
３０Ｋｆｌｔｔｌの加圧下に５分間熱処理をし、金型な
８１１いて成形品を取り出し、２００℃で４時間後加硫
を行なったところ、得られた成形品は２種のゴムの接着
面が美しい水平面となってお屯〕、これらが完全に接着
した一体成形品であった。The molded product was heat-treated for 5 minutes under a pressure of 30 Kflttl, removed from the mold, and vulcanized after 4 hours at 200°C. It was a one-piece molded product that was completely glued together.
造装置の縦１＃＋面要図、第２図は金型中での加熱加圧
状態を示す縦断面図、第３図は本発明方法で得られた異
種シリコーンゴム成形体の縦断面図を例示したものであ
る。Fig. 2 is a vertical cross-sectional view showing the heating and pressurizing state in the mold; Fig. 3 is a longitudinal cross-sectional view of a dissimilar silicone rubber molded product obtained by the method of the present invention. This is an example.
１・・・下型、 ２・・・散状ゴム受入れ凹部。1...Lower mold, 2...Scattered rubber receiving recess.
３・・・ノズル、 ４・・・冷却機構。3... Nozzle, 4... Cooling mechanism.
５・・・液状シリコーンゴム容器、 ７・・・上型。5...Liquid silicone rubber container, 7...Upper mold.
１０・・・マニホールド、１１・・・分配孔。10... Manifold, 11... Distribution hole.
１２・・・ノズル孔。12... Nozzle hole.
ＩＬ・・・真補シリコーンゴム成形体。IL: true silicone rubber molded body.
特許出願人 信越ポリマー株式会社Patent applicant: Shin-Etsu Polymer Co., Ltd.
Claims (1)
状シリコーンゴムとからなる組成物を予熱されている金
型のキャビティ凹部に注入して非流動状ｌ二固化したの
ち、この金型ｌ二加硫剤を添加した加熱硬化型の硬化性
シリコーンゴム組成物を仕込み、金型を閉じて加圧、加
熱して一体成形品とすることを特徴とする異種シリコー
ンゴム成形品の製造方法。 ２、液状シリコーンゴム組成物が付加型シリコーンゴム
ト過酸化物加硫型シリコーンゴムとの８０：２０〜２０
：８０（１！ｒ量比）の配合物である特許請求の範囲第
１項記載の異種シリコーンゴム成形品の製造方法。[Claims] 1. A composition consisting of a liquid addition type silicone rubber and a peroxide vulcanized liquid silicone rubber is injected into the cavity recess of a preheated mold and is solidified into a non-fluid state. After that, a heat-curable curable silicone rubber composition to which a vulcanizing agent has been added is charged into the mold, the mold is closed, and the mold is pressurized and heated to form an integrally molded product. Method of manufacturing rubber molded products. 2. The liquid silicone rubber composition has a ratio of addition type silicone rubber to peroxide vulcanization type silicone rubber in a ratio of 80:20 to 20.
:80 (1!r amount ratio).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25058083A JPS60143917A (en) | 1983-12-29 | 1983-12-29 | Manufacture of different kind silicon rubber molding product |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25058083A JPS60143917A (en) | 1983-12-29 | 1983-12-29 | Manufacture of different kind silicon rubber molding product |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60143917A true JPS60143917A (en) | 1985-07-30 |
| JPH0341045B2 JPH0341045B2 (en) | 1991-06-20 |
Family
ID=17210000
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP25058083A Granted JPS60143917A (en) | 1983-12-29 | 1983-12-29 | Manufacture of different kind silicon rubber molding product |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60143917A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6455239A (en) * | 1987-08-26 | 1989-03-02 | Shinetsu Chemical Co | Manufacture of conductive silicone rubber formed article |
| JP2010537723A (en) * | 2007-08-31 | 2010-12-09 | スリーエム イノベイティブ プロパティズ カンパニー | Respirator face with thermoset elastomer face seal |
-
1983
- 1983-12-29 JP JP25058083A patent/JPS60143917A/en active Granted
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6455239A (en) * | 1987-08-26 | 1989-03-02 | Shinetsu Chemical Co | Manufacture of conductive silicone rubber formed article |
| JP2010537723A (en) * | 2007-08-31 | 2010-12-09 | スリーエム イノベイティブ プロパティズ カンパニー | Respirator face with thermoset elastomer face seal |
| JP2014057864A (en) * | 2007-08-31 | 2014-04-03 | 3M Innovative Properties Co | Respirator surface body including thermosetting elastomer face seal |
| US8820326B2 (en) | 2007-08-31 | 2014-09-02 | 3M Innovative Properties Company | Respirator facepiece with thermoset elastomeric face seal |
| JP2015180257A (en) * | 2007-08-31 | 2015-10-15 | スリーエム イノベイティブ プロパティズ カンパニー | Respirator facepiece with thermoset elastomeric face seal |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0341045B2 (en) | 1991-06-20 |
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