Mothproof and waterproof coating for garden wooden bridge and preparation method thereof

Abstract

The invention discloses a mothproof and waterproof coating for a garden wooden bridge and a preparation method thereof. The coating comprises the following components: polyacrylamide, polyurethane, graphene, superfine talc powder, nano silicon dioxide, nano aluminum oxide, white carbon black, high-viscosity attapulgite clay, pyrethrum, radix angelicae, cortex cinnamomi, fructus quisqualis, radix euphorbiae lantu, anise, and radix sanguisorbae. The preparation method comprises: extracting the traditional Chinese medicine components respectively to obtain an extracting solution, and making the extracting solution into freeze-dried powder; adding polyacrylamide and a polyurethane aqueous solution into a reaction kettle, adding a graphene aqueous solution, and performing stirring reaction for 0.5-1.5h; and adding the superfine talc powder, the nano silicon dioxide, the nano aluminum oxide, the white carbon black and the high-viscosity attapulgite clay, mixing the materials uniformly, then adding the freeze-dried powder, and mixing the materials uniformly to obtain the coating. The coating is applied to decoration of the garden wooden bridge, and enables the wooden bridge to not only have good waterproof and anticorrosive effect but also have excellent mothproof and mildewproof properties, so that the coating has a good application value.

Description

technical field [0001] The invention relates to the technical field of garden supporting facilities, in particular to an insect-proof and waterproof coating for garden wooden bridges and a preparation method thereof. Background technique [0002] With the acceleration of urban modernization, the proportion of reinforced concrete structures in our cities is increasing, and the urban "heat island effect" is becoming more and more serious. In order to enable the healthy development of cities, urban landscaping has attracted more and more attention. [0003] In landscaping, in addition to planting green plants, there are also rivers, ponds and supporting small bridges. Some small bridges are made of wood, and wooden small bridges have been used for a long time due to the surrounding humid environment. Wood rot often occurs. One of the most obvious characteristics of wood rot is that wood chips will loosen and fall. In addition, due to the influence of climate and biological fact...

AI Technical Summary

Problems solved by technology

Wood rot often occurs. One of the most obvious characteristics of wood rot is that wood chips will loosen and fall. In addition, due to the influence of climate and biological factors in the environment, many chemical and physical changes will occur on the surface of wood, such as climate change. Shrinkage, swelling, cracking, twisting, mildew and decay under high temperature conditions, decay caused by insects and bacteria, etc., resulting in the failure of the small bridge to achieve its original performance

[0004] In the prior art, some coatings with waterproof properties have been gradually released, but the existing waterproof coatings have the characteristics of single function, and cannot fully realize the performance requirements of wooden bridges in gardens. Coatings for wooden bridges with waterproof and anti-corrosion effects, and excellent insect-proof and mildew-proof properties have become the focus of current research, and also meet the needs of landscaping, and have good application value