The invention relates to a regenerated composite plastic
brick environmental-protection plate and a preparation method thereof. The regenerated composite plastic
brick environmental-protection plate comprises 20-60% by weight of a plastic and 40-80% by weight of building garbage, wherein one or a plurality of materials selected from meltable
plastic materials are mixed to obtain the plastic. According to the present invention, the waste plastic and the building garbage are subjected to crushing, mixing, hot melting and
extrusion pressing to obtain the regenerated composite plastic
brick environmental-protection plate, and
barium sulfate can be selected to enhance the
toughness; the waste plastic and the building garbage are used to prepare the regenerated composite plastic brick environmental-protection plate, such that the currently-existing white
pollution problem is solved, a large amount of
soil resources are saved, the production cost is reduced, and the advantages of economy and
environmental protection are provided; and the regenerated composite plastic brick environmental-protection plate is the typical high-temperature-resistant plate, has characteristics of
high density and easily available raw materials, and can be widely used in a variety of outdoor municipal decorations,
furniture manufacturing, build industry, and the like.