JPS6172505A - Molding and vulcanizing process of rubber product - Google Patents
Molding and vulcanizing process of rubber productInfo
- Publication number
- JPS6172505A JPS6172505A JP19458784A JP19458784A JPS6172505A JP S6172505 A JPS6172505 A JP S6172505A JP 19458784 A JP19458784 A JP 19458784A JP 19458784 A JP19458784 A JP 19458784A JP S6172505 A JPS6172505 A JP S6172505A
- Authority
- JP
- Japan
- Prior art keywords
- rubber
- vulcanizing
- molding
- siloxane
- product
- 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
Links
- 229920001971 elastomer Polymers 0.000 title claims abstract description 64
- 239000005060 rubber Substances 0.000 title claims abstract description 64
- 238000000465 moulding Methods 0.000 title claims description 17
- 238000000034 method Methods 0.000 title claims description 14
- 239000000203 mixture Substances 0.000 claims abstract description 31
- 229920000642 polymer Polymers 0.000 claims abstract description 25
- -1 siloxane unit Chemical group 0.000 claims abstract description 10
- 125000000217 alkyl group Chemical group 0.000 claims abstract description 3
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 claims abstract description 3
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 claims description 2
- 239000000126 substance Substances 0.000 claims description 2
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 abstract 1
- 229920002554 vinyl polymer Polymers 0.000 abstract 1
- KPUWHANPEXNPJT-UHFFFAOYSA-N disiloxane Chemical class [SiH3]O[SiH3] KPUWHANPEXNPJT-UHFFFAOYSA-N 0.000 description 16
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 6
- 239000003795 chemical substances by application Substances 0.000 description 6
- 239000012744 reinforcing agent Substances 0.000 description 5
- 238000004073 vulcanization Methods 0.000 description 5
- 229920005549 butyl rubber Polymers 0.000 description 4
- 229920001296 polysiloxane Polymers 0.000 description 4
- 235000012239 silicon dioxide Nutrition 0.000 description 4
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 description 3
- YBYIRNPNPLQARY-UHFFFAOYSA-N 1H-indene Chemical compound C1=CC=C2CC=CC2=C1 YBYIRNPNPLQARY-UHFFFAOYSA-N 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 2
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 2
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 2
- 239000006229 carbon black Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000000454 talc Substances 0.000 description 2
- 229910052623 talc Inorganic materials 0.000 description 2
- IANQTJSKSUMEQM-UHFFFAOYSA-N 1-benzofuran Chemical compound C1=CC=C2OC=CC2=C1 IANQTJSKSUMEQM-UHFFFAOYSA-N 0.000 description 1
- 229910052582 BN Inorganic materials 0.000 description 1
- PZNSFCLAULLKQX-UHFFFAOYSA-N Boron nitride Chemical compound N#B PZNSFCLAULLKQX-UHFFFAOYSA-N 0.000 description 1
- 229920000181 Ethylene propylene rubber Polymers 0.000 description 1
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 1
- 244000043261 Hevea brasiliensis Species 0.000 description 1
- 235000019687 Lamb Nutrition 0.000 description 1
- 239000004640 Melamine resin Substances 0.000 description 1
- 229920000877 Melamine resin Polymers 0.000 description 1
- 239000005062 Polybutadiene Substances 0.000 description 1
- 240000008042 Zea mays Species 0.000 description 1
- 235000005824 Zea mays ssp. parviglumis Nutrition 0.000 description 1
- 235000002017 Zea mays subsp mays Nutrition 0.000 description 1
- YKTSYUJCYHOUJP-UHFFFAOYSA-N [O--].[Al+3].[Al+3].[O-][Si]([O-])([O-])[O-] Chemical compound [O--].[Al+3].[Al+3].[O-][Si]([O-])([O-])[O-] YKTSYUJCYHOUJP-UHFFFAOYSA-N 0.000 description 1
- 229920000800 acrylic rubber Polymers 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000003712 anti-aging effect Effects 0.000 description 1
- AKKYYRRXEDROIC-UHFFFAOYSA-N butane;prop-2-enenitrile Chemical compound CCCC.C=CC#N AKKYYRRXEDROIC-UHFFFAOYSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 150000004649 carbonic acid derivatives Chemical class 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 239000011231 conductive filler Substances 0.000 description 1
- 235000005822 corn Nutrition 0.000 description 1
- 229910002026 crystalline silica Inorganic materials 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 229920003244 diene elastomer Polymers 0.000 description 1
- 125000000118 dimethyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 229920005610 lignin Polymers 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 150000007974 melamines Chemical class 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- LAQFLZHBVPULPL-UHFFFAOYSA-N methyl(phenyl)silicon Chemical compound C[Si]C1=CC=CC=C1 LAQFLZHBVPULPL-UHFFFAOYSA-N 0.000 description 1
- 239000006082 mold release agent Substances 0.000 description 1
- 229920003052 natural elastomer Polymers 0.000 description 1
- 229920001194 natural rubber Polymers 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 239000005011 phenolic resin Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 229920001084 poly(chloroprene) Polymers 0.000 description 1
- 229920000058 polyacrylate Polymers 0.000 description 1
- 229920002857 polybutadiene Polymers 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 229920003048 styrene butadiene rubber Polymers 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C33/00—Moulds or cores; Details thereof or accessories therefor
- B29C33/38—Moulds or cores; Details thereof or accessories therefor characterised by the material or the manufacturing process
- B29C33/40—Plastics, e.g. foam or rubber
- B29C33/405—Elastomers, e.g. rubber
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/32—Component parts, details or accessories; Auxiliary operations
- B29C43/36—Moulds for making articles of definite length, i.e. discrete articles
- B29C43/3642—Bags, bleeder sheets or cauls for isostatic pressing
-
- 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
- B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
- B29K2105/06—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts
- B29K2105/16—Fillers
-
- 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
- B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
- B29K2105/24—Condition, form or state of moulded material or of the material to be shaped crosslinked or vulcanised
-
- 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
- B29K2883/00—Use of polymers having silicon, with or without sulfur, nitrogen, oxygen, or carbon only, in the main chain, as mould material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2030/00—Pneumatic or solid tyres or parts thereof
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Heating, Cooling, Or Curing Plastics Or The Like In General (AREA)
Abstract
Description
【発明の詳細な説明】
ＬＬＩＬ拍
本発明はゴム製品、特にタイヤの成型加硫方法の改良に
関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to improvements in molding and vulcanization methods for rubber products, particularly tires.
Ｌ１立且遣
従来タイヤのｒＩｌ型加硫に用いられる加硫用プラダー
の組成物としては有機ゴム、特にブチルゴムが用いられ
てきた。Organic rubber, particularly butyl rubber, has been used as the composition of the vulcanizing pladder used in the rIl type vulcanization of L1 tires.
（−。占
しかし有機ゴムよりなる加硫用プラダーはタイヤ内面と
の離型性が悪く、必ずシリコーンエマルジョン等からな
る離型剤を必要とし、この離型剤がタイヤ成型加硫時に
おいてタイヤの不良品発生の原因となる場合がしばしば
あった。(-) However, the vulcanizing pladder made of organic rubber has poor mold releasability from the inner surface of the tire, and requires a mold release agent such as a silicone emulsion. This often led to the occurrence of defective products.
さらに、有機ゴムよりなる加硫用プラダーは熱伝導性に
著しく劣るために、タイヤを成型加硫するにあたって要
する熱量がタイヤを加硫するに実際に必要な熱量の何倍
も費やされる等の欠点があり、これらの欠点の改良が強
く切望されてさた。Furthermore, since the vulcanizing plasticder made of organic rubber has extremely poor thermal conductivity, it has drawbacks such as the amount of heat required to mold and vulcanize the tire is many times the amount of heat actually required to vulcanize the tire. There is a strong need for improvement of these shortcomings.
本発明は従来使用されていた加硫用プラダーの離型性及
び熱伝導性を改善して、作業性１品質安定性及び熱エネ
ルギー原単位を向上させたゴム製品の成型加硫方法を提
供せんとするものである。The present invention provides a method for molding and vulcanizing rubber products that improves the mold releasability and thermal conductivity of the conventionally used vulcanizing pladder, and improves workability, quality stability, and thermal energy consumption. That is.
即ち本発明は、ゴム成型品を成型加硫するに当り、内面
より加圧するために用いられる加硫用プラダーが一般式
但しＲはアルキル基、フェニル基、ビニル基を示す。That is, in the present invention, when molding and vulcanizing a rubber molded product, a vulcanizing pladder used for applying pressure from the inner surface has a general formula where R represents an alkyl group, a phenyl group, or a vinyl group.
で示されるシロキサンユニー／ ）を含有するポリマー
を主成分とするゴム組成物から形成されてなるものであ
るゴム製品の成型加硫方法である。This is a molding and vulcanization method for a rubber product formed from a rubber composition whose main component is a polymer containing siloxane uny/ ) shown by the formula.
上記のシロキサンユニットを含有するゴム組成物として
は、シロキサン重合体、シロキサン重合体と有機ゴムの
混合物、有機ゴムのシロキサン変ｄ 性物、有
機ゴムのシロキサン変性物とシロキサン改合体の混合物
、有機ゴムのシロキサン変性物と有機ゴムの混合物、及
びシロキサン重合体と有機ゴムと有機ゴムのシロキサン
変性物の３者の配合物が挙げられる。Rubber compositions containing the above siloxane units include siloxane polymers, mixtures of siloxane polymers and organic rubbers, siloxane-modified organic rubbers, mixtures of siloxane-modified organic rubbers and siloxane polymers, and organic rubbers. Examples include a mixture of a siloxane-modified product of 1 and an organic rubber, and a blend of a siloxane polymer, an organic rubber, and a siloxane-modified product of an organic rubber.
シロキサン重合体としては、ジメチルシリコーン生ゴム
、メチルフェニルシリコーン生ゴム、メチルヒニルシリ
コーン生ゴム、メチルフェニルビニルシリコーン生ゴム
等がある。Examples of the siloxane polymer include dimethyl silicone raw rubber, methylphenyl silicone raw rubber, methylhinyl silicone raw rubber, methylphenyl vinyl silicone raw rubber, and the like.
本発明のゴム製品の成型加硫方法で用いられる加硫用プ
ラダーの１つの特徴である良好な離型性は、シロキサン
重合体の低いＳｐ値により現出される０本発明に用いら
れるべきシロキサン重合体のＳｐ値は、少なくとも７．
０以下、好ましくは６．５以下、さらに好ましくは６．
０以下であることが望ましい。Good mold releasability, which is one of the characteristics of the vulcanizing pladder used in the molding and vulcanizing method for rubber products of the present invention, is achieved by the low Sp value of the siloxane polymer. The Sp value of the polymer is at least 7.
0 or less, preferably 6.5 or less, more preferably 6.
It is desirable that it be 0 or less.
本発明のゴム製品の成型加硫方法で用いられる加硫用プ
ラダーの他の１つの特徴である良好な熱伝導率は、シロ
キサン重合体の良好な熱伝導率に由来する。したがって
上記成型加硫用プラダ−に使用できるシロキサン重合体
の熱伝導率は、有機ゴｔ、特にブチルゴムの熱伝導−４
４２，０５Ｘ１０−４ｃ ａ ｌ ／ ｃ ｍ 瞭ｓ
ｅ ｃ ｅ ”０の２倍のイｎ、４．ＩＸ１０−’ Ｃ
ａ ｌ ／ Ｃｍ ’ ３６ Ｃ” ”０以上であるこ
とが望ましく、好ましくは４．４Ｘ１０−’ｃａｌ／ｃ
ｍ ＠ｓ ｅ ｃ ｅ ’Ｏ以上、更に好ましくは５
．ＯＸｌ ０−’ Ｃａ ｌ ／ Ｃｍ ’ ５ ｅ
Ｃ，” ”０以トのものを上記ンリコーン生ゴムの中か
ら選択して使用する。Another characteristic of the vulcanizing pladder used in the molding and vulcanizing method for rubber products of the present invention is its good thermal conductivity, which is derived from the good thermal conductivity of the siloxane polymer. Therefore, the thermal conductivity of the siloxane polymer that can be used for the molding and vulcanizing plastic is -4
42,05X10-4c a l/cm clears
e c e ”2 times in of 0, 4.IX10-' C
a l / Cm' 36 C""It is desirable that it is 0 or more, preferably 4.4X10-'cal/c
m@s e c e 'O or more, more preferably 5
．． OXl 0-'Cal/Cm' 5 e
C. Select and use a rubber with a value of 0 or more from the above-mentioned raw corn rubber.
加硫用プラダーを形成するゴム組成物には、シロキサン
重合体の欠点である耐加水分解性、力学的性質の低さを
補う意味で、有機ゴムを混合して用いる事ができる。こ
の有機ゴムとしてはブチルゴム、エチレンプロピレンゴ
ム、フッ素ゴム、アクリルゴム等の飽和系のゴムが好ま
しく用いられるが、天然ゴム、ブタジェンゴム、インプ
レンゴム、クロロプレンゴム、スチレン−ブタジェンゴ
ム、アクリロニトリル−ブタンエンゴム等のジエン系の
ゴムも用いる事ができる。In the rubber composition forming the vulcanizing pladder, an organic rubber can be mixed and used in order to compensate for the poor hydrolysis resistance and mechanical properties that are disadvantageous to siloxane polymers. Saturated rubbers such as butyl rubber, ethylene propylene rubber, fluorine rubber, and acrylic rubber are preferably used as the organic rubber, but diene rubbers such as natural rubber, butadiene rubber, imprene rubber, chloroprene rubber, styrene-butadiene rubber, and acrylonitrile-butane rubber are used. Rubber can also be used.
有機ゴムのシロキサン変性物についても、シロキサン重
合体と有機ゴムとの混合物について述へたのと同様なこ
とが言える。即ち基体となる有機ゴムは上記の有機ゴム
の中から選択することができ、それをシロキサン変性し
て、」二足のシロキサン重合体と有機ゴムとの混合物に
準する性質を有するものを使用すればよい。The same can be said about siloxane-modified organic rubbers as described above regarding mixtures of siloxane polymers and organic rubbers. That is, the organic rubber to be used as the base can be selected from the organic rubbers mentioned above, and it can be modified with siloxane to have properties similar to a mixture of a bipedal siloxane polymer and an organic rubber. Bye.
有機ゴムのシロキサン変性物も有機ゴムと混合して用い
ることができる。またシロキサン重合体と有機ゴムのシ
ロキサン変性物との混合物、シロキサン重合体と有機ゴ
ムと有機ゴムのシロキサン変性物の３者の混合物もシロ
キサンユニットを含有するポリマー成分として使用でき
る。Siloxane-modified organic rubbers can also be used in combination with organic rubbers. A mixture of a siloxane polymer and a siloxane-modified organic rubber, or a mixture of a siloxane polymer, an organic rubber, and a siloxane-modified organic rubber can also be used as the polymer component containing siloxane units.
本発明のゴム製品の成型加硫方法で用いられる加硫用ブ
ラタ−のゴム組成物には、さらに熱伝導率を高める化法
で熱伝導付与剤を混合して使用することが好ましい、こ
の熱伝導付与剤としては、アルミナ、水和アルミナ、酸
化鉄、酸化亜鉛、粉砕結晶シリカ、天然の無定形シリカ
、ケイ酸アルミニウム、タルク、チッ化ホウ素、カーボ
ンブラック、黒鉛粉末、金属粉末等、熱伝導率が３０゜
０ＸＩＯ−’ｃａｌ／Ｃｍｅ ｓｅｃ＊’０以上の高
熱伝導性の充填剤の中から選ばれたものが用いられる、
これらの熟υ、導性針′ｊ、剤は、ポリマー成分ｌＯＯ
改量部に対し１０重壁部〜１５０重量部。It is preferable that a thermal conductivity imparting agent is mixed into the rubber composition of the vulcanizing blister used in the molding and vulcanizing method for rubber products of the present invention by a chemical method that further increases the thermal conductivity. Examples of conductivity imparting agents include alumina, hydrated alumina, iron oxide, zinc oxide, crushed crystalline silica, natural amorphous silica, aluminum silicate, talc, boron nitride, carbon black, graphite powder, metal powder, etc. A filler selected from among highly thermally conductive fillers having a coefficient of 30°0XIO-'cal/Cme sec*'0 or more is used.
These conductive needles, conductive needles, and agents are composed of polymer components lOO
10 parts by weight to 150 parts by weight based on the modified part.
特に２０〜７０重峻部の範囲で用いるのが好ましい。In particular, it is preferable to use it in the range of 20 to 70 parts.
本発明のゴム製品の成型加硫方法で用いられる加硫用プ
ラダーを形成するゴム組成物には、さらに加硫用プラダ
ーとして使用に耐えるだけの力学的物性を現出するため
に補強剤を用いる。この補強剤としてはカーボンブチ・
ツク、ホワイトカーボン、無水ケイ酸、含水ケイ酸、合
成ケイ酸、活性化炭酸カル・／ラム タルク、アルミナ
等の無機補強剤及びハイスチレン樹脂、クマロンインデ
ン樹脂、フェノール樹脂、リグニン 変性メラミン樹脂
、石油樹脂等の有機補強剤の中から選ばれたものが用い
られるが、通常はシロキサン重合体単独の組成物につい
ては無水ケイ酸、有機ゴムとのブレンドにおいてはカー
ボンブラックが好ましく用いられる。A reinforcing agent is further added to the rubber composition forming the vulcanizing pladder used in the molding and vulcanizing method for rubber products of the present invention in order to exhibit mechanical properties sufficient to withstand use as a vulcanizing pladder. . As this reinforcing agent, carbon butchi
Tsuku, white carbon, anhydrous silicic acid, hydrated silicic acid, synthetic silicic acid, activated carbonate cal/lamb, talc, inorganic reinforcing agents such as alumina, high styrene resin, coumaron indene resin, phenol resin, lignin modified melamine resin, Those selected from organic reinforcing agents such as petroleum resins are used, and usually silicic anhydride is preferably used for compositions containing a siloxane polymer alone, and carbon black is preferably used for blends with organic rubber.
−本発明のタイヤ成型加硫方法で用いられる加硫用プラ
ダーは上記成分の混合物に、老化防止剤。- The vulcanizing pladder used in the tire molding and vulcanizing method of the present invention contains a mixture of the above components and an anti-aging agent.
加硫剤、加硫促進剤を加えた材ネ１を加８Ｉｉ３！Ｉ化
させることに欠り形成する事ができる。Vulcanize material 1 with vulcanizing agent and vulcanization accelerator added! It can be formed without changing into I.
本発明のタイヤの成型加硫方法で用いられる加硫用プラ
ダーを形成しているゴム組成物は、室温において、引張
り強度が９０Ｋｇ／ｃｍ２以上、好ましくは１００Ｋｇ
／ｃｍ２以上、破断伸びが５５０％以北、好ましくは６
００ ｑｂ以−ヒ、さらに好ましくは６５０％以上、引
裂き強度２５Ｋｇ／Ｃｍ以上好ましくは３０Ｋｇ／Ｃｍ
以丑になるようにする。これは該ゴム組成物中の有機ゴ
ムや補強剤の混合率を調整することにより達成し得る。The rubber composition forming the vulcanizing pladder used in the tire molding and vulcanizing method of the present invention has a tensile strength of 90 Kg/cm2 or more, preferably 100 Kg/cm2 or more at room temperature.
/cm2 or more, elongation at break is north of 550%, preferably 6
00 qb or more, more preferably 650% or more, tear strength 25Kg/Cm or more, preferably 30Kg/Cm
I'll try to make it worse. This can be achieved by adjusting the mixing ratio of the organic rubber and reinforcing agent in the rubber composition.
これらの強度は該ゴム組成物が加硫用プラダーとして、
艮時間使用に耐えるために望ましい条件である。These strengths are such that when the rubber composition is used as a vulcanizing pladder,
This is a desirable condition to withstand long-term use.
前記シロキサンユニットは全ゴム組成物に対し５重量％
以上、好ましくは１０重蚤％、さらに好ましくは２０重
量％以上である事がｆｆｉ要である。The siloxane unit is 5% by weight based on the total rubber composition.
As mentioned above, ffi is preferably 10% by weight or more, more preferably 20% by weight or more.
ンロキサンンユニットが全ゴム組成物に対し５重敗％未
満の量だと雌型剤を除くに十分な離型性が得られない。If the amount of the polyurethane unit is less than 5% based on the total rubber composition, sufficient mold releasability to remove the female molding agent will not be obtained.
以ド支施例により本発明を具体的に説明する。The present invention will be specifically explained below with reference to Examples.
−１，−２び１１
第１表に示すように ポリマー成分としてシロ午すン改
合体を単独で用いたもの（″ｉｌ施例１）。-1, -2 and 11 As shown in Table 1, the silica polymer was used alone as the polymer component (Example 1).
ンロキサン重合体とブチルゴムを５０：５０の８１合で
混合したもの（実施例２）、及びブチルゴムを単独で用
いたもの（比較例１）からなる材料を加熱硬化させて加
硫用プラダーを形成させた。Materials consisting of a 50:50 81 mixture of polychloroxane polymer and butyl rubber (Example 2) and a mixture of butyl rubber alone (Comparative Example 1) were heated and cured to form a vulcanizing pladder. Ta.
その物性を第２表に、またこのプラダーを用いてタイヤ
を成型加硫した時の性能評価を＠３表に示す６
第 １ 表
数字はすべて重量部
第２表
第３表
ｆＪＩＪ３表でわかるように、シロキサンユニットを含
有するポリマーを主成分とするゴム層成物より形成され
てなる加硫用プラダ−を用いるタイヤの成型加硫方法は
、ｊｌｌＪＩ！！剤を必要とせず、また必要熱着も減少
するので、■業的見地から非常に有用である。Its physical properties are shown in Table 2, and the performance evaluation when molding and vulcanizing tires using this plasticder is shown in @Table 36 Table 1 All numbers are parts by weight Table 2 Table 3 fJIJ Table 3 In addition, a tire molding and vulcanization method using a vulcanizing pladder formed from a rubber layer composition whose main component is a polymer containing a siloxane unit is described by JllJI! ! It is very useful from an industrial standpoint because it does not require any additives and requires less heat adhesion.
Claims (1)
るために用いられる加硫用プラダーが一般式 ▲数式、化学式、表等があります▼ 但しＲはアルキル基、フェニル基、ビニル基を示す。 で示されるシロキサンユニットを含有するポリマーを主
成分とするゴム組成物から形成されてなるものであるゴ
ム製品の成型加硫方法。 ２、前記シロキサンユニットを全組成物に対し５重量％
以上含有するゴム組成物から形成された加硫用プラダー
を使用する特許請求の範囲第１項記載の方法。[Claims] 1. The vulcanizing pladder used to apply pressure from the inner surface when molding and vulcanizing a rubber molded product has a general formula ▲ There are mathematical formulas, chemical formulas, tables, etc. ▼ However, R is an alkyl group, Indicates a phenyl group and a vinyl group. A method for molding and vulcanizing a rubber product formed from a rubber composition whose main component is a polymer containing a siloxane unit represented by: 2. 5% by weight of the siloxane unit based on the total composition
The method according to claim 1, which uses a vulcanizing pladder formed from a rubber composition containing the above.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19458784A JPS6172505A (en) | 1984-09-19 | 1984-09-19 | Molding and vulcanizing process of rubber product |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19458784A JPS6172505A (en) | 1984-09-19 | 1984-09-19 | Molding and vulcanizing process of rubber product |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6172505A true JPS6172505A (en) | 1986-04-14 |
Family
ID=16327022
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19458784A Pending JPS6172505A (en) | 1984-09-19 | 1984-09-19 | Molding and vulcanizing process of rubber product |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6172505A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4946883A (en) * | 1989-01-26 | 1990-08-07 | Toray Dow Corning Silicone | Fluororubber compositions exhibiting improved workability and mechanical properties |
| EP0711642A3 (en) * | 1994-09-28 | 1996-12-11 | Goodyear Tire & Rubber | Tire curing bladder with improved release from the tire innerliner |
| EP0711643A3 (en) * | 1994-09-30 | 1996-12-11 | Goodyear Tire & Rubber | Tire cure bladders containing polytetrafluoroethylene powder and use thereof |
| EP0761404A1 (en) * | 1995-07-14 | 1997-03-12 | The Goodyear Tire & Rubber Company | Tire curing bladder with improved release characteristics |
| FR2747886A1 (en) * | 1996-04-24 | 1997-10-31 | Matinox Decors | Flexible silicone moulds for baking pastries |
| EP0785056A3 (en) * | 1996-01-16 | 1999-04-07 | The Goodyear Tire & Rubber Company | Tyre cure bladders containing polytetrafluoroethylene powder and use thereof |
| JP2007002183A (en) * | 2005-06-27 | 2007-01-11 | Bridgestone Corp | Silicone rubber composition for tire production, and method for producing the same |
| JP2017048295A (en) * | 2015-09-01 | 2017-03-09 | 住友ゴム工業株式会社 | Rubber composition for vulcanization bladder and vulcanization bladder |
-
1984
- 1984-09-19 JP JP19458784A patent/JPS6172505A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4946883A (en) * | 1989-01-26 | 1990-08-07 | Toray Dow Corning Silicone | Fluororubber compositions exhibiting improved workability and mechanical properties |
| EP0711642A3 (en) * | 1994-09-28 | 1996-12-11 | Goodyear Tire & Rubber | Tire curing bladder with improved release from the tire innerliner |
| CN1057955C (en) * | 1994-09-28 | 2000-11-01 | 固特异轮胎和橡胶公司 | Tire curing bladder with improved release from the tire innerliner |
| EP0711643A3 (en) * | 1994-09-30 | 1996-12-11 | Goodyear Tire & Rubber | Tire cure bladders containing polytetrafluoroethylene powder and use thereof |
| EP0761404A1 (en) * | 1995-07-14 | 1997-03-12 | The Goodyear Tire & Rubber Company | Tire curing bladder with improved release characteristics |
| EP0785056A3 (en) * | 1996-01-16 | 1999-04-07 | The Goodyear Tire & Rubber Company | Tyre cure bladders containing polytetrafluoroethylene powder and use thereof |
| FR2747886A1 (en) * | 1996-04-24 | 1997-10-31 | Matinox Decors | Flexible silicone moulds for baking pastries |
| JP2007002183A (en) * | 2005-06-27 | 2007-01-11 | Bridgestone Corp | Silicone rubber composition for tire production, and method for producing the same |
| JP2017048295A (en) * | 2015-09-01 | 2017-03-09 | 住友ゴム工業株式会社 | Rubber composition for vulcanization bladder and vulcanization bladder |
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