Polymerizable eutectic solvent for self-repairing material, conductive elastomer and preparation method of conductive elastomer

Abstract

The invention discloses a polymerizable eutectic solvent for a self-repairing material, a conductive elastomer and a preparation method of the conductive elastomer. The polymerizable eutectic solventis obtained by reacting a hydrogen bond acceptor with a hydrogen bond donor at 60-100 DEG C, wherein the hydrogen bond donor comprises a carboxylic acid monomer containing double bonds and an acrylamide monomer, the molar ratio of the hydrogen bond donor to the hydrogen bond acceptor is not less than 1:1, the molar ratio of the acrylamide monomer to the carboxylic acid monomer containing double bonds is not less than 1:1, and the self-repairing conductive elastomer comprises a polymerizable eutectic solvent, a cross-linking agent and an initiator. The self-repairing conductive elastomer prepared from the eutectic solvent is transparent in appearance, good in conductivity, excellent in self-repairing performance at a temperature of -30 DEG C to 60 DEG C and good in environmental stability,and a conductive nano material does not need to be added in the preparation process.

Description

Technical field [0001] The present invention relates to the field of ionic liquids. Specifically, the present invention relates to a polymerizable eutectic solvent for self-healing materials, a conductive elastomer and a preparation method thereof. Background technique [0002] Eutectic solvents are a subset of ionic liquids. On the basis of inheriting the advantages of ionic liquids low vapor pressure, non-aqueous biocompatibility, non-flammability, chemical stability, and high solubility, it also has low cost and low toxicity. , The preparation process has the characteristics of 100% atom utilization and environmental friendliness, and is expected to replace ionic liquids in the future. At present, eutectic solvents are mainly used in areas such as capturing carbon dioxide, dissolving metal oxides, dissolving drugs and purifying, catalysts, electrodeposition, material preparation, and processing biopolymers. However, there are relatively few reports about polymerizable eutecti...

AI Technical Summary

Problems solved by technology

The currently reported self-healing conductive materials are generally prepared using nano-conductive particles (such as polypyrrole, PEDOT:PSS, graphene, carbon nanotubes, etc.) combined with flexible polymers (such as polyurethane (PU), polydimethylsiloxane, etc. PDMS), etc.), but this method has relatively large defects. First, the addition of nano-conductive particles in the preparation process greatly reduces the transparency of self-healing materials, which limits the use of self-healing materials; second, most of the current research focuses on In the exploration of self-healing conductive hydrogels, little has been done on ionogel elastomers that do not contain moisture, and hydrogels are known to have poor mechanical properties and cannot retain their own moisture in the natural environment resulting in performance degradation The third is that the preparation process of self-healing materials is complicated, most of which involve the use of organic solvents, and the cost is high, which limits the development of self-healing materials to a certain extent.

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