JPH02209967A - Electrically conductive silicone rubber - Google Patents
Electrically conductive silicone rubberInfo
- Publication number
- JPH02209967A JPH02209967A JP10766888A JP10766888A JPH02209967A JP H02209967 A JPH02209967 A JP H02209967A JP 10766888 A JP10766888 A JP 10766888A JP 10766888 A JP10766888 A JP 10766888A JP H02209967 A JPH02209967 A JP H02209967A
- Authority
- JP
- Japan
- Prior art keywords
- silicone rubber
- conductive
- alloy
- conductive silicone
- electrically conductive
- 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
- 229920002379 silicone rubber Polymers 0.000 title claims abstract description 19
- 239000004945 silicone rubber Substances 0.000 title claims abstract description 19
- 239000000956 alloy Substances 0.000 claims abstract description 10
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 10
- -1 vinylsiloxane Chemical class 0.000 claims abstract description 5
- 238000007259 addition reaction Methods 0.000 claims abstract description 3
- 239000007822 coupling agent Substances 0.000 claims abstract description 3
- 238000002156 mixing Methods 0.000 claims abstract 2
- 239000002245 particle Substances 0.000 claims description 18
- 238000004073 vulcanization Methods 0.000 claims 2
- 229910052751 metal Inorganic materials 0.000 abstract description 7
- 239000002184 metal Substances 0.000 abstract description 7
- 150000002978 peroxides Chemical class 0.000 abstract description 3
- 238000004381 surface treatment Methods 0.000 abstract description 2
- 239000008187 granular material Substances 0.000 abstract 2
- 229920000642 polymer Polymers 0.000 description 6
- 230000009257 reactivity Effects 0.000 description 4
- 229920005573 silicon-containing polymer Polymers 0.000 description 4
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 229920001971 elastomer Polymers 0.000 description 3
- 229910002804 graphite Inorganic materials 0.000 description 3
- 239000010439 graphite Substances 0.000 description 3
- 239000003054 catalyst Substances 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000002923 metal particle Substances 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 229920002554 vinyl polymer Polymers 0.000 description 2
- 239000004342 Benzoyl peroxide Substances 0.000 description 1
- OMPJBNCRMGITSC-UHFFFAOYSA-N Benzoylperoxide Chemical compound C=1C=CC=CC=1C(=O)OOC(=O)C1=CC=CC=C1 OMPJBNCRMGITSC-UHFFFAOYSA-N 0.000 description 1
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 description 1
- 239000006087 Silane Coupling Agent Substances 0.000 description 1
- 235000010724 Wisteria floribunda Nutrition 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 235000019400 benzoyl peroxide Nutrition 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 239000003575 carbonaceous material Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000004040 coloring Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- FWDBOZPQNFPOLF-UHFFFAOYSA-N ethenyl(triethoxy)silane Chemical compound CCO[Si](OCC)(OCC)C=C FWDBOZPQNFPOLF-UHFFFAOYSA-N 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 239000011147 inorganic material Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 229910000077 silane Inorganic materials 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Landscapes
- Conductive Materials (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野］
本発明は、エレクトロニクス産業において、スイッチ、
コネクター、電磁波シールドなどに用いられる導電性シ
リコンゴムに関するものである。[Detailed Description of the Invention] [Industrial Application Field] The present invention is applicable to switches,
This relates to conductive silicone rubber used in connectors, electromagnetic shielding, etc.
［従来の技術］
通常の導電性シリコンゴムは、導電性粒子を絶縁性シリ
コーンゴムに加えて、加硫を行なうもので、導電性粒子
に関してはカーボンブラック、グラファイトなどの炭素
系や、八ｇ、 Ｎｉ、 Ｃｕ等の金属系、さらにはガラ
スピーズなどの無機物に金属をコーティングしカものな
どを使用するものが主流である。[Prior art] Ordinary conductive silicone rubber is made by adding conductive particles to insulating silicone rubber and vulcanizing it.As for the conductive particles, carbon-based materials such as carbon black and graphite, 8g, The mainstream is to use metals such as Ni and Cu, or even inorganic materials such as glass beads coated with metal.
［発明が解決しようとする問題点］
従来の黒鉛系粒子を用いた導電ゴムは、低抵抗化が困難
であり、また、シリコーンポリマーとの反応性が無い為
に、ａＩｔｉ的な強度に劣り、かつ、色も黒色以外の着
色が不可能である等多くの問題点があり、また金属粒子
においては、低抵抗化および色の点については解決でき
るが、金属の酸化および腐食等を防止するために、高価
な安定金属を使用する必要があり、かつ、黒鉛系と同様
にシリコーンポリマーとの反応性が無い為に機械的強度
が劣り、なおかつ、金属粒子が脱離するという問題が残
る。[Problems to be solved by the invention] Conventional conductive rubber using graphite-based particles is difficult to reduce resistance, and because it has no reactivity with silicone polymers, it has poor strength in terms of aIti. In addition, there are many problems such as the impossibility of coloring other than black, and although it is possible to solve the problem of lower resistance and color with metal particles, it is necessary to prevent metal oxidation and corrosion. However, it is necessary to use an expensive stable metal, and like graphite-based materials, there is no reactivity with silicone polymers, resulting in poor mechanical strength, and there remains the problem that metal particles are detached.
［問題点を解決するための手段］
そこで本発明は、導電性粒子とシリコーンポリマーとの
反応性を得るノｂに、Ｓｉ元素と金属との合金を導電性
粒子としたらのであり、八１Ｘｓｉｙで表される合金が
最も安定であり、また良導電性であることが分かったが
、さらに他の金属を加えて３Ｍ以上の元素からなる合金
としても何ら問題ない導電性シリコンゴムを得ることが
できる。[Means for solving the problem] Therefore, the present invention uses an alloy of Si element and metal as the conductive particles to obtain the reactivity between the conductive particles and the silicone polymer. It was found that the alloy shown is the most stable and has good conductivity, but by adding other metals, it is also possible to obtain conductive silicone rubber with no problems as an alloy consisting of elements of 3M or more. .
ここで、ＡｌｘＳｉｙなる合金表面は、空気中の８２０
．０゜が作用して、表面は５ｉ−ＯＨを有しているので
、シラン系カップリング剤を用いることにより、その表
面は、容易にシラン処理を行なうことができる。このカ
ップリング剤の選定にあたり、ビニル基を有する化合物
を用いれば以下の反応式よりビニルシロキサンとなる。Here, the surface of the alloy AlxSiy is 820% in air.
．． Since the surface has 5i-OH due to the 0° angle, the surface can be easily treated with silane by using a silane coupling agent. When selecting this coupling agent, if a compound having a vinyl group is used, it will become a vinyl siloxane according to the following reaction formula.
ここでＲ，Ｒ，Ｒ３は有機物である。Here, R, R, and R3 are organic substances.
このビニルシロキサンは、過酸化物を加えることにより
、容易にシリコーンポリマーと架橋するので、成形時に
は導電粒子とポリマーが化学結合することになる。This vinyl siloxane easily crosslinks with the silicone polymer by adding peroxide, so that the conductive particles and the polymer are chemically bonded during molding.
＾ＬＳｉ−Ｏｆｆ−ｔ−１１０−３ｉ−ＣＩＩ＝ＣＩＩ
２ＡｌＳｉ ０−３ｉ ｃＨ＝ｃＨ２＋Ｃ１１２ｓ
ｉ’ＥＥＲ２＋２ （ＯＲ３）
→ ＾ＬＳｉ−０−Ｓｉ〜ＣＨ−ＣＨ２−ＣＨ２−３ｉ
三ＲＯＲ−１−ＲＯＨ
また、ヒドロシロキサン及びシリコーンゴムポリマーと
触媒を加えれば、粒子表面ビニル基とポリマー中５ｉ−
ｔｌ基に加え、粒子表面５ｉ−Ｈ基とポリマー中ビニル
基の反応が得られる為に、その反応性は大となる。^LSi-Off-t-110-3i-CII=CII
2AlSi 0-3i cH=cH2+C112s
i'EER2+2 (OR3) → ^LSi-0-Si~CH-CH2-CH2-3i
3ROR-1-ROH Also, if hydrosiloxane and silicone rubber polymer and catalyst are added, vinyl groups on the particle surface and 5i-
In addition to the tl group, the reaction between the 5i-H group on the particle surface and the vinyl group in the polymer results in a high reactivity.
→ ＾１ｘｓｉ −０
ＣＨ−３ｉ三
及び
ＡｆｘＳｉ −Ｈ十ＣＨ２
二０１１
５ｉ−０
ＡｆｘＳｉ −０−Ｓｉ −Ｃｌ１＝ Ｃｔ１２＋ Ｈ
−Ｓｉ三→ ＾ｚｘｓｉ−ＣＨ２−ＣＨ２
５ｉ−０
Ｈ３
以上の様に従来から最も汎用的に用いられている過酸化
物又は付加反応による架橋を、導電性粒子とポリマー間
で行なうことができるので成形物の安定性は、物理的、
電気的に向上する。→ ^1xsi -0 CH-3i three and AfxSi -H ten CH2 2011 5i-0 AfxSi -0-Si -Cl1= Ct12+ H
-Si3→ ^zxsi-CH2-CH2 5i-0 H3 As mentioned above, crosslinking by peroxide or addition reaction, which has been most commonly used conventionally, can be performed between the conductive particles and the polymer. The stability of molded products is determined by physical,
Improve electrically.
［実 施 例］
（１）合金比ＡＬ６Ｓｉ４の粒子１００重量比に対して
、３００のトルエンと、５のビニルトリエトキシシラン
を加えて３時間の還流を行なった後、７０℃で溶剤を揮
発させた導電粉末にシリコンゴムポリマー５０と過酸化
ベンゾイル１を加えオーブンロールにて混練後、金型成
形を行なったところ、体積固有抵抗５Ω■の良好な導電
性シリコンゴムを得た。[Example] (1) 300 parts of toluene and 5 parts of vinyltriethoxysilane were added to 100 parts by weight of particles having an alloy ratio of AL6Si4, and after refluxing for 3 hours, the solvent was evaporated at 70°C. Silicone rubber polymer 50 and benzoyl peroxide 1 were added to the conductive powder, kneaded in an oven roll, and molded into a mold to obtain a good conductive silicone rubber with a volume resistivity of 5 Ω.
（２）実施例（１）と同様の処理を行った導電性粒子１
００に対して、シリコーンゴムポリマー４５とポリヒド
ロシロキサン５及び触媒０゜５を加えてオーブンロール
にて混練後、金型成形を行なったところ、体積固有抵抗
３Ω■の良好な導電性シリコンゴムを得な。(2) Conductive particles 1 treated in the same manner as in Example (1)
00, silicone rubber polymer 45, polyhydrosiloxane 5, and catalyst 0.5 were added, kneaded in an oven roll, and then molded. As a result, a good conductive silicone rubber with a volume resistivity of 3 Ω was obtained. Good value.
［発明の効果］
以上の様に、Ａｌ、ｘＳｉｙ粒子に表面処理を行い、ビ
ニル基を導入することにより、従来からの成形法により
安定な導電性シリコーンゴムを得ることができるので、
強度を必要とする導電ゴムとしての用途が拡大し、なお
かつＡＬＸＳｉｙなる合金は、比較的低コストである為
にその産業上の効果は大である。[Effects of the Invention] As described above, by surface-treating Al and xSiy particles and introducing vinyl groups, stable conductive silicone rubber can be obtained by conventional molding methods.
The use of the alloy as conductive rubber, which requires strength, is expanding, and the alloy called ALXSiy is relatively low-cost, so its industrial effects are great.
尚、導電性粒子に代え、フレーク状のものを用いればよ
り低抵抗化が図れることはいうまでもない。It goes without saying that the resistance can be further reduced by using flakes instead of conductive particles.
第１図は、＾Ｉ１．Ｘ５ｉＶ粒子の表面処理後のモデル
図。
第２図は、成形品モデル図。
■・・・シリコンゴムベース
２・・・＾ＬＸＳｉＶ粒子
特許出願人 富 士 ゴ ム 株式会社代理人 弁理士
松 １） 省 躬手続補正書（ブ斌）
平成元年１２月ｌ１日Figure 1 shows ^I1. A model diagram of X5iV particles after surface treatment. Figure 2 is a model diagram of the molded product. ■...Silicone Rubber Base 2...^LXSiV Particle Patent Applicant Fuji Rubber Co., Ltd. Agent Patent Attorney Matsu 1) Ministry of Procedures Amendment (Bubin) December 11, 1989
Claims (1)
とにより製造される導電性シリコンゴムにおいて、導電
性粒子として、ＡｌｘＳｉｙからなる合金の表面をビニ
ルシロキサンを含有するカップリング剤で処理し、過酸
化物加硫又は付加反応加硫にて導電性粒子とシリコーン
ゴムと結合させて成る導電性シリコンゴム。(1) In conductive silicone rubber manufactured by mixing conductive particles with insulating silicone rubber, the surface of an alloy made of AlxSiy as the conductive particles is treated with a coupling agent containing vinylsiloxane, and Conductive silicone rubber made by combining conductive particles with silicone rubber through oxide vulcanization or addition reaction vulcanization.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10766888A JPH02209967A (en) | 1988-05-02 | 1988-05-02 | Electrically conductive silicone rubber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10766888A JPH02209967A (en) | 1988-05-02 | 1988-05-02 | Electrically conductive silicone rubber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02209967A true JPH02209967A (en) | 1990-08-21 |
Family
ID=14464978
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10766888A Pending JPH02209967A (en) | 1988-05-02 | 1988-05-02 | Electrically conductive silicone rubber |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02209967A (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07109501A (en) * | 1993-10-06 | 1995-04-25 | Toray Dow Corning Silicone Co Ltd | Silver powder and its production |
| WO2008097600A1 (en) * | 2007-02-07 | 2008-08-14 | Starkey Laboratories, Inc. | Electrical contacts and switches using conductive silicone in hearing assistance devices |
| EP2088804A1 (en) * | 2008-02-06 | 2009-08-12 | Starkey Laboratories, Inc. | Antenna used in conjunction with the conductors for an audio transducer |
| US8385573B2 (en) | 2007-09-19 | 2013-02-26 | Starkey Laboratories, Inc. | System for hearing assistance device including receiver in the canal |
| US8638965B2 (en) | 2010-07-14 | 2014-01-28 | Starkey Laboratories, Inc. | Receiver-in-canal hearing device cable connections |
| US8705785B2 (en) | 2008-08-11 | 2014-04-22 | Starkey Laboratories, Inc. | Hearing aid adapted for embedded electronics |
| US8781141B2 (en) | 2008-08-27 | 2014-07-15 | Starkey Laboratories, Inc. | Modular connection assembly for a hearing assistance device |
| US9002047B2 (en) | 2009-07-23 | 2015-04-07 | Starkey Laboratories, Inc. | Method and apparatus for an insulated electromagnetic shield for use in hearing assistance devices |
| US9049526B2 (en) | 2011-03-19 | 2015-06-02 | Starkey Laboratories, Inc. | Compact programming block connector for hearing assistance devices |
| US9906879B2 (en) | 2013-11-27 | 2018-02-27 | Starkey Laboratories, Inc. | Solderless module connector for a hearing assistance device assembly |
| US9913052B2 (en) | 2013-11-27 | 2018-03-06 | Starkey Laboratories, Inc. | Solderless hearing assistance device assembly and method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52144798A (en) * | 1976-05-27 | 1977-12-02 | Japan Synthetic Rubber Co Ltd | Pressureesensing resistor with excellent durability and method of manufacture thereof |
| JPS53896A (en) * | 1976-06-25 | 1978-01-07 | Japan Synthetic Rubber Co Ltd | Pressureesensing resistor with excellent durability and method of manufacture thereof |
| JPS56100849A (en) * | 1980-01-04 | 1981-08-13 | Ford Motor Co | Precursor composition of heat conductive elastomer |
-
1988
- 1988-05-02 JP JP10766888A patent/JPH02209967A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52144798A (en) * | 1976-05-27 | 1977-12-02 | Japan Synthetic Rubber Co Ltd | Pressureesensing resistor with excellent durability and method of manufacture thereof |
| JPS53896A (en) * | 1976-06-25 | 1978-01-07 | Japan Synthetic Rubber Co Ltd | Pressureesensing resistor with excellent durability and method of manufacture thereof |
| JPS56100849A (en) * | 1980-01-04 | 1981-08-13 | Ford Motor Co | Precursor composition of heat conductive elastomer |
Cited By (28)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07109501A (en) * | 1993-10-06 | 1995-04-25 | Toray Dow Corning Silicone Co Ltd | Silver powder and its production |
| WO2008097600A1 (en) * | 2007-02-07 | 2008-08-14 | Starkey Laboratories, Inc. | Electrical contacts and switches using conductive silicone in hearing assistance devices |
| US8494195B2 (en) | 2007-02-07 | 2013-07-23 | Starkey Laboratories, Inc. | Electrical contacts using conductive silicone in hearing assistance devices |
| US8385573B2 (en) | 2007-09-19 | 2013-02-26 | Starkey Laboratories, Inc. | System for hearing assistance device including receiver in the canal |
| EP2930951A1 (en) * | 2008-02-06 | 2015-10-14 | Starkey Laboratories, Inc. | Antenna used in conjunction with the conductors for an audio transducer |
| EP2088804A1 (en) * | 2008-02-06 | 2009-08-12 | Starkey Laboratories, Inc. | Antenna used in conjunction with the conductors for an audio transducer |
| US11653157B2 (en) | 2008-02-06 | 2023-05-16 | Starkey Laboratories, Inc. | Antenna used in conjunction with the conductors for an audio transducer |
| US10798496B2 (en) | 2008-02-06 | 2020-10-06 | Starkey Laboratories, Inc. | Antenna used in conjunction with the conductors for an audio transducer |
| US8867765B2 (en) | 2008-02-06 | 2014-10-21 | Starkey Laboratories, Inc. | Antenna used in conjunction with the conductors for an audio transducer |
| EP3457718A1 (en) * | 2008-02-06 | 2019-03-20 | Starkey Laboratories, Inc. | Antenna used in conjunction with the conductors for an audio transducer |
| EP2088804B1 (en) | 2008-02-06 | 2015-05-27 | Starkey Laboratories, Inc. | Antenna used in conjunction with the conductors for an audio transducer |
| US9516432B2 (en) | 2008-02-06 | 2016-12-06 | Starkey Laboratories, Inc. | Antenna used in conjunction with the conductors for an audio transducer |
| US10448176B2 (en) | 2008-08-11 | 2019-10-15 | Starkey Laboratories, Inc. | Hearing aid adapted for embedded electronics |
| US11064304B2 (en) | 2008-08-11 | 2021-07-13 | Starkey Laboratories, Inc. | Hearing aid adapted for embedded electronics |
| US9654887B2 (en) | 2008-08-11 | 2017-05-16 | Starkey Laboratories, Inc. | Hearing aid adapted for embedded electronics |
| US11765531B2 (en) | 2008-08-11 | 2023-09-19 | Starkey Laboratories, Inc. | Hearing aid adapted for embedded electronics |
| US10051390B2 (en) | 2008-08-11 | 2018-08-14 | Starkey Laboratories, Inc. | Hearing aid adapted for embedded electronics |
| US8705785B2 (en) | 2008-08-11 | 2014-04-22 | Starkey Laboratories, Inc. | Hearing aid adapted for embedded electronics |
| US9693154B2 (en) | 2008-08-27 | 2017-06-27 | Starkey Laboratories, Inc. | Modular connection assembly for a hearing assistance device |
| US11711660B2 (en) | 2008-08-27 | 2023-07-25 | Starkey Laboratories, Inc. | Modular connection assembly for a hearing assistance device |
| US11252521B2 (en) | 2008-08-27 | 2022-02-15 | Starkey Laboratories, Inc. | Modular connection assembly for a hearing assistance device |
| US10257622B2 (en) | 2008-08-27 | 2019-04-09 | Starkey Laboratories, Inc. | Modular connection assembly for a hearing assistance device |
| US8781141B2 (en) | 2008-08-27 | 2014-07-15 | Starkey Laboratories, Inc. | Modular connection assembly for a hearing assistance device |
| US9002047B2 (en) | 2009-07-23 | 2015-04-07 | Starkey Laboratories, Inc. | Method and apparatus for an insulated electromagnetic shield for use in hearing assistance devices |
| US8638965B2 (en) | 2010-07-14 | 2014-01-28 | Starkey Laboratories, Inc. | Receiver-in-canal hearing device cable connections |
| US9049526B2 (en) | 2011-03-19 | 2015-06-02 | Starkey Laboratories, Inc. | Compact programming block connector for hearing assistance devices |
| US9913052B2 (en) | 2013-11-27 | 2018-03-06 | Starkey Laboratories, Inc. | Solderless hearing assistance device assembly and method |
| US9906879B2 (en) | 2013-11-27 | 2018-02-27 | Starkey Laboratories, Inc. | Solderless module connector for a hearing assistance device assembly |
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