The invention discloses a bamboo wood
preservative made from a natural
plant source and a preparation method of the bamboo wood
preservative. The bamboo wood
preservative comprises, by
mass, 2.5%-10% of extract from roots of
kudzu vines, 1%-5% of extract from
smoke trees, 1%-5% of extract from onions, 30%- 60% of
alcohol and the balance
distilled water, wherein the sum of the
mass percentages of the materials is 100%. The preparation method of the bamboo wood preservative comprises the steps that
alcohol and
distilled water are mixed according to a
mass ratio into
ethanol water with the mass percentage of 30%-60%, the extract from roots of
kudzu vines, the extract from
smoke trees and the extract from onions are added into the
ethanol water according to the mass percentages, the mixture is stirred for 30 minutes to 60 minutes in a vacuum decompression sealed tank at the temperature of 50 DEG C to 60 DEG C, the mixture is cooled to the normal temperature, and then a bamboo wood preservative solution containing the extract from roots of
kudzu vines, the extract from
smoke trees and the extract from onions is obtained, wherein the mass percentage of the extract from roots of kudzu vines, the mass percentage of the extract from smoke trees and the mass percentage of the extract from onions are certain. The bamboo wood preservative made from the natural
plant source has the antibacterial function and the
insect prevention function and can well restrain bamboo wood rotting fungi, brown rot fungi (Gloeophyllum) and
white rot fungi (
Coriolus versicolor). The bamboo wood preservative is a totally
environmentally friendly material, the preparation technology is simple,
energy consumption can be reduced, and compared with a chemical preservative, the bamboo wood preservative is high in safety for the environment.