Elastomer plastic, conductive plastic, conductive plastic bipolar plate and preparation methods thereof

Abstract

The invention relates to an elastomer plastic which is characterized by being blended from single thermoplastic resins with at least two different specifications. The invention also relates to a conductive plastic containing the elastomer plastic and a conductive plastic bipolar plate. The invention also relates to preparation methods of the elastomer plastic, the conductive plastic containing the elastomer plastic, and the conductive plastic bipolar plate.

Description

Technical field [0001] This application relates to an elastomer plastic, in particular to an elastomer plastic, and also to a conductive plastic and a conductive plastic bipolar plate containing the elastomer plastic. This application also relates to the preparation method of elastomer plastic, conductive plastic containing the same, and conductive plastic bipolar plate. Background technique [0002] Electricity is an indispensable secondary energy source in human life and production in modern society. With the development of social economy, people's demand for electricity is getting higher and higher. According to the "Analysis and Forecast of National Electricity Supply and Demand and Economic Operation Situation in the Third Quarter of 2005" issued by the China Electricity Council: The growth rate of national electricity consumption in 2006 was about 11%, and the electricity consumption was about 2,730 billion kWh . The power gap is mainly concentrated in North China and th...

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Problems solved by technology

[0008] CN 1845368A: Graphite plate is used as bipolar plate material of liquid flow battery. Graphite has good electrical conductivity and corrosion resistance, but it is difficult to seal graphite and frame, which may easily cause battery internal leakage, and graphite has poor toughness, which is very easy to Cause damage in processing and organization, and the price of graphite is expensive and the processing and production of large-size graphite plates are difficult. Therefore, there are many technical obstacles to the application of graphite in flow batteries

[0009] WO2002101864 uses CPVC and ABS blended polymers as the base material of conductive plastics, and adds conductive fillers such as graphite. This kind of conductive plastics uses blended polymers, which cannot completely solve the shortage of material strength and toughness, and high content of single conductive fillers Failure to obtain high conductivity

[0010] US1997005626986 uses a blend of polymers and rubber materials as the basis of conductive plastics. Rubber materials contain carbon-carbon double bonds, so they are easily oxidized and decomposed by strong oxidizing substances, resulting in product failure

[0011] To sum up, the current graphite bipolar plates are expensive, the product size cannot meet the needs of high-power products, and are easily damaged during processing and assembly, while other conductive plastic bipolar plates are mostly in the research stage. There are no mature products, and the conductivity of the material is usually only improved by adding conductive fillers, so the mechanical strength of the material is usually poor, and there are certain limitations in corrosion resistance, and there is no large-scale mass production process

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