The invention discloses an antifreezing
tree trunk whitening agent and a preparation method thereof, and belongs to the technical field of tree
whitening agents. An antifreezing
active agent for preparation is chelated with
calcium and
magnesium ions in trees, so that the
survival rate of the trees can be improved at a low temperature; hydrophobic C-C long chains on the main chain of a
coating additive inhibit shrinkage and expansion of a
coating film, and a good
coating state is well kept; a surfactant is introduced into the coating film, and an
insect-resistant
active agent in the whiteningagent is released, so that
insect-resistant and anti-microbial functions are synergistic; active substances with
insect repelling and sterilizing functions in turmeric, Chinese prickly ash and the like are extracted by
alcohol extraction, and insect-resistant and anti-bacterial effects on tree trunks are enhanced; a freezing-resistant
active agent is used for reducing the
freezing point and storing water inside the tree trunks, so that the tree trunks are prevented from
cracking and spalling; and due to response of
carbon dioxide generated by respiratory action of the tree trunks,
viscosity ofthe coating film is improved, and the overall function of the
tree trunk whitening agent is increased. According to the invention, the problems that a formed film of an existing
tree trunk coating agent cracks and falls off easily and the insect-resistant and anti-bacterial effects are poor are solved.