Water-resistant light-weight biodegradable flowerpot material and preparation method thereof

The invention discloses a water-resistant light-weight biodegradable flowerpot material and a preparation method thereof. The flowerpot material comprises a substrate and a waterproof resin, and the surface of the substrate is coated with the substrate; the substrate comprises the following raw materials in parts by weight: 60 parts of natural organic packing, 40 parts of starch and 2.5 to 7.5 parts of a thickening agent. The preparation method for the flowerpot material comprises the following steps: first, preparing the starch into starch glue; then, mixing the starch glue and the thickening agent; next, mixing the mixture and the natural organic packing by a double-roller open mill, and performing hot press moulding in a plate vulcanizing machine to obtain a substrate material; finally, coating the substrate material with the waterproof resin. The water-resistant light-weight biodegradable flowerpot material prepared by adopting the preparation method has the advantages of low cost, low weight, easiness in