High-dielectric insulating composite material and preparation method and application thereof

• Main Authors: LIU MEIBING, ZHANG BIN, YANG QIANG, CHEN WENQING, LIU JINGRUI, SHUAI XUANYANG, XIE WEI
• Format: Patent
• Language: Chinese; English
• Published: 22.03.2019
• Subjects: AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G; BASIC ELECTRIC ELEMENTS; CABLES; CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; CONDUCTORS; ELECTRICITY; GENERAL PROCESSES OF COMPOUNDING; 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; WORKING-UP

The invention provides a high-dielectric insulating composite material and a preparation method and application thereof. The high-dielectric insulating composite material comprises the following raw materials in parts by weight: 100 parts of low-density polyethylene; 0.1-0.5 parts of an anti-oxidant, preferably 0.15-0.4 parts; 1.50-2.00 parts of a cross-linking agent, preferably 1.70-1.95 parts; and 0.5-10.0 parts of a high molecular material additive, preferably 1.0-9.0 parts. The high-dielectric insulating composite material is excellent in insulating property, and capable of improving disruptive strength under the precondition of guaranteeing excellent reliability of the disruptive strength of the high-dielectric insulating composite material. Further, the preparation method for the high-dielectric insulating composite material has higher safety and lower cost, and is suitable for industrial large-scale production. 本发明提供种高介电绝缘复合材料及其制备方法和应用。所述高介电绝缘复合材料，以重量份计，包括：低密度聚乙烯：100份；抗氧剂：0.1～0.5份，优选0.15～0.4份；交联剂：1.50～