EP0223355A1 - Verfahren zur Erzeugung eines druckempfindlichen leitfähigen Verbundelastomers - Google Patents
Verfahren zur Erzeugung eines druckempfindlichen leitfähigen Verbundelastomers Download PDFInfo
- Publication number
- EP0223355A1 EP0223355A1 EP86307049A EP86307049A EP0223355A1 EP 0223355 A1 EP0223355 A1 EP 0223355A1 EP 86307049 A EP86307049 A EP 86307049A EP 86307049 A EP86307049 A EP 86307049A EP 0223355 A1 EP0223355 A1 EP 0223355A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- particles
- compound
- pressure
- conductive
- carbonized
- 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
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01C—RESISTORS
- H01C10/00—Adjustable resistors
- H01C10/10—Adjustable resistors adjustable by mechanical pressure or force
- H01C10/106—Adjustable resistors adjustable by mechanical pressure or force on resistive material dispersed in an elastic material
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B1/00—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors
- H01B1/20—Conductive material dispersed in non-conductive organic material
- H01B1/24—Conductive material dispersed in non-conductive organic material the conductive material comprising carbon-silicon compounds, carbon or silicon
Definitions
- suspension polymerization means a process wherein a polymerization catalyst is added to monomers, the mixture being stirred in water with a dispersant added to allow the monomers to disperse in oil-drop form and then being polymerized.
- Figs. 1a, 1b and 1c are schematic views showing a few examples of spherical carbonized particles used for the purpose of the invention. Particles of various grades of conductivity are shown as they are formed from non-conductive spherical particles of a macromolecular material. Experiments have revealed that the electric conductivity of the particles varies according to the heating and baking conditions. This is considered to be attributable to the following facts. If, as in Fig. la, only a region around the outer periphery of a particle 1 is carbonized to a thickness (t) in a spherical shell pattern, the conductivity of the particle 1 is low because the carbonized portion 2, i.e.
- the degree of carbonization of the particles 1 is adjustable by changes in baking conditions, such as heating termperature and time. Therefore, by baking and carbonizing preselected particles 1 of a specified diameter under preset baking conditions it is possible to obtain quite easily, particles 1 having the required conductivity.
- the compound was moulded by press-moulding into a sheet having a thickness of 0.5 mm. Pressure was applied to the sheet surface by a rod-like pressing electrode having a 5 mm diameter, and the relationships between the pressing force and the resistance were measured. The measurements, as shown in Fig. 2, revealed satisfactory resistance variation characteristics, with only a small degree of hysteresis.
- the spherical phenolic resin particles were produced in the following way. A resol resin was dissolved in acetone, and a precipitant was added to the mixture during stirring, so that fine spherical resin particles were separated out. The particles were then subjected to filtration and drying and subsequently heated and hardened.
Landscapes
- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Carbon And Carbon Compounds (AREA)
- Conductive Materials (AREA)
- Adjustable Resistors (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP60253525A JPS62112641A (ja) | 1985-11-11 | 1985-11-11 | 感圧導電性エラストマ−組成物 |
JP253525/85 | 1985-11-11 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0223355A1 true EP0223355A1 (de) | 1987-05-27 |
EP0223355B1 EP0223355B1 (de) | 1989-10-11 |
Family
ID=17252578
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP86307049A Expired EP0223355B1 (de) | 1985-11-11 | 1986-09-12 | Verfahren zur Erzeugung eines druckempfindlichen leitfähigen Verbundelastomers |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0223355B1 (de) |
JP (1) | JPS62112641A (de) |
DE (1) | DE3666304D1 (de) |
MY (1) | MY100739A (de) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0399295A2 (de) * | 1989-05-24 | 1990-11-28 | Preh-Werke GmbH & Co. KG | Zur Erzeugung elektrischer Widerstandsschichten geeignete Widerstandspaste und aus ihr hergestellte Widerstandsschicht |
WO1991010240A1 (de) * | 1989-12-23 | 1991-07-11 | Robert Bosch Gmbh | Verfahren zum herstellen einer abriebfesten schicht |
US5989700A (en) * | 1996-01-05 | 1999-11-23 | Tekscan Incorporated | Pressure sensitive ink means, and methods of use |
US6964205B2 (en) | 2003-12-30 | 2005-11-15 | Tekscan Incorporated | Sensor with plurality of sensor elements arranged with respect to a substrate |
US7785704B2 (en) | 2003-05-14 | 2010-08-31 | Tekscan, Inc. | High temperature pressure sensitive devices and methods thereof |
CN111732836A (zh) * | 2020-06-17 | 2020-10-02 | 东南大学 | 一种用于高速铁路无砟轨道板健康状况实时监测的传感器材料及其制备方法 |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AUPR725601A0 (en) | 2001-08-24 | 2001-09-20 | Commonwealth Scientific And Industrial Research Organisation | Strain gauges |
JP2009198482A (ja) * | 2008-01-24 | 2009-09-03 | Tokai Rubber Ind Ltd | センサ薄膜、その製造方法、および変形センサ |
JP2009198483A (ja) * | 2008-01-24 | 2009-09-03 | Tokai Rubber Ind Ltd | センサ薄膜、その製造方法、および変形センサ |
JP5577022B2 (ja) * | 2008-01-24 | 2014-08-20 | 東海ゴム工業株式会社 | センサ用複合材料および変形センサ |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2450856A1 (fr) * | 1979-03-09 | 1980-10-03 | Toray Silicone Co | Compositions d'organopolysiloxane liquides vulcanisables conductrices de l'electricite |
FR2537984A1 (fr) * | 1982-12-16 | 1984-06-22 | Denki Kagaku Kogyo Kk | Noir de carbone electriquement conducteur et composition electriquement conductrice contenant ce noir, et procede pour la preparation de ce noir |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6011215A (ja) * | 1983-06-30 | 1985-01-21 | Agency Of Ind Science & Technol | 高導電性炭素系焼成物及びその組成物 |
-
1985
- 1985-11-11 JP JP60253525A patent/JPS62112641A/ja active Pending
-
1986
- 1986-09-12 EP EP86307049A patent/EP0223355B1/de not_active Expired
- 1986-09-12 DE DE8686307049T patent/DE3666304D1/de not_active Expired
-
1987
- 1987-09-29 MY MYPI87002097A patent/MY100739A/en unknown
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2450856A1 (fr) * | 1979-03-09 | 1980-10-03 | Toray Silicone Co | Compositions d'organopolysiloxane liquides vulcanisables conductrices de l'electricite |
FR2537984A1 (fr) * | 1982-12-16 | 1984-06-22 | Denki Kagaku Kogyo Kk | Noir de carbone electriquement conducteur et composition electriquement conductrice contenant ce noir, et procede pour la preparation de ce noir |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0399295A2 (de) * | 1989-05-24 | 1990-11-28 | Preh-Werke GmbH & Co. KG | Zur Erzeugung elektrischer Widerstandsschichten geeignete Widerstandspaste und aus ihr hergestellte Widerstandsschicht |
EP0399295A3 (de) * | 1989-05-24 | 1991-03-20 | Preh-Werke GmbH & Co. KG | Zur Erzeugung elektrischer Widerstandsschichten geeignete Widerstandspaste und aus ihr hergestellte Widerstandsschicht |
US5219494A (en) * | 1989-05-24 | 1993-06-15 | Preh-Werke Gmbh & Co. Kg | Resistor paste composition and resistor layers produced therefrom |
WO1991010240A1 (de) * | 1989-12-23 | 1991-07-11 | Robert Bosch Gmbh | Verfahren zum herstellen einer abriebfesten schicht |
US5989700A (en) * | 1996-01-05 | 1999-11-23 | Tekscan Incorporated | Pressure sensitive ink means, and methods of use |
US7785704B2 (en) | 2003-05-14 | 2010-08-31 | Tekscan, Inc. | High temperature pressure sensitive devices and methods thereof |
US6964205B2 (en) | 2003-12-30 | 2005-11-15 | Tekscan Incorporated | Sensor with plurality of sensor elements arranged with respect to a substrate |
CN111732836A (zh) * | 2020-06-17 | 2020-10-02 | 东南大学 | 一种用于高速铁路无砟轨道板健康状况实时监测的传感器材料及其制备方法 |
Also Published As
Publication number | Publication date |
---|---|
DE3666304D1 (en) | 1989-11-16 |
JPS62112641A (ja) | 1987-05-23 |
MY100739A (en) | 1991-01-31 |
EP0223355B1 (de) | 1989-10-11 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US5175214A (en) | Pressure-sensitive conductive elastomer compound | |
EP0223355B1 (de) | Verfahren zur Erzeugung eines druckempfindlichen leitfähigen Verbundelastomers | |
KR100236382B1 (ko) | 압감성 막 및 이것의 제조방법 | |
CA1096161A (en) | Pressure-sensitive, electrically conductive elastomeric composition | |
CA2241826C (en) | Pressure sensitive ink means, and methods of use | |
US6495069B1 (en) | Polymer composition | |
US5498644A (en) | Silcone elastomer incorporating electrically conductive microballoons and method for producing same | |
US2683669A (en) | Conductive plastics and method of making the same | |
CA2318742A1 (en) | Polymer composition | |
US4832870A (en) | Electrically conductive composite material | |
GB2054277A (en) | Pressure-sensitive electroconductive bodies | |
Bhowmick et al. | Scanning electron microscopy studies of fractured natural rubber surfaces | |
Boonstra et al. | Electrical conductivity of rubber-carbon black vulcanizates | |
US4117065A (en) | Method of forming conductive carbon-plastic material | |
JPS61271706A (ja) | 感圧導電性ゴム | |
US4246217A (en) | Conductive rubber antennas having improved physical and electrical properties | |
JPH0471108A (ja) | 感圧導電性エラストマー | |
JPS6123643B2 (de) | ||
JPH0779006B2 (ja) | 感圧導電性エラストマー | |
Slupkonski | Electrical Conductivity of Polymers Modified With Conductive Powders | |
US4166870A (en) | Manufacture of electrodes for electrochemical cells | |
EP0289193A1 (de) | Druckempfindliche, elektrisch leitfähige Werkstoffe | |
RU2222065C2 (ru) | Полимерная композиция | |
JPS60723B2 (ja) | 発泡感圧抵抗体の製造方法 | |
JPH0798876B2 (ja) | 導電性ゴム組成物の製造法 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): CH DE FR GB LI |
|
17P | Request for examination filed |
Effective date: 19870424 |
|
17Q | First examination report despatched |
Effective date: 19880610 |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): CH DE FR GB LI |
|
ET | Fr: translation filed | ||
REF | Corresponds to: |
Ref document number: 3666304 Country of ref document: DE Date of ref document: 19891116 |
|
PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
26N | No opposition filed | ||
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: CH Payment date: 20010925 Year of fee payment: 16 |
|
REG | Reference to a national code |
Ref country code: GB Ref legal event code: IF02 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: LI Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20020930 Ref country code: CH Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20020930 |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: PL |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: GB Payment date: 20040902 Year of fee payment: 19 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FR Payment date: 20040927 Year of fee payment: 19 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 20040928 Year of fee payment: 19 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GB Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20050912 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20060401 |
|
GBPC | Gb: european patent ceased through non-payment of renewal fee |
Effective date: 20050912 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: FR Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20060531 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: ST Effective date: 20060531 |