STRONGLY FLEXIBLE AND HIGHLY DIELECTRIC ELASTOMER AND METHOD FOR PRODUCING THE SAME

• Main Authors: HAKUTA YUKIYA, NAGAYAMA KAITO, ITO KOZO, MAYUMI KOICHI, GOTO HIROSHI, HATAKEYAMA KAZUTO, ITO TAKEHITO, TERAJIMA KAZUO, SHIMIZU SADAKI
• Format: Patent
• Language: English; Japanese
• Published: 18.03.2021
• Subjects: BASIC ELECTRIC ELEMENTS; CABLES; CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; CONDUCTORS; ELECTRICITY; INSULATORS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING ORDIELECTRIC PROPERTIES; THEIR PREPARATION OR CHEMICAL WORKING-UP; USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS

To provide a dielectric elastomer material that has an excellent flexibility and a high dielectric property.SOLUTION: Provided is an organic inorganic nanocomposite containing conductive inorganic filler particles of submicron or less by 5 to 20% in weight percentage in one or more polyrotaxans or a polymer blend containing one or more polyrotaxanes, and in which, characterized, the conductive inorganic filler particles are oriented in a direction parallel to one direction of the nanocomposite. Thereby, a novel material useful as a dielectric elastomer, having both an excellent flexibility and a high dielectric property, in which the relative dielectric constant is 100 or more at 100 Hz and the Young's modulus is 200 MPa or less, is provided.SELECTED DRAWING: Figure 4 【課題】優れた柔軟性と高い誘電性を併せ持つ誘電エラストマー材料を提供すること。【解決手段】１種類以上のポリロタキサンまたは１種類以上のポリロタキサンを含むポリマーブレンドに、 サブミクロン以下の導電性無機フィラー粒子を重量分率５〜２０％含み、当該導電性無機フィラー粒子がナノコンポジットの一方向に平行な方向に配向していることを特徴とする、有機無機ナノコンポジット。これにより、比誘電率が１００Ｈｚで１００以上であり、かつヤング率が２００ＭＰａ以下という、優れた柔軟性と高い誘電性を併せ持つ、誘電エラストマーとして有用な、新規な材料が提供される。【選択図】図４