High-temperature-resistant waterproof epoxy asphalt and preparation method thereof

Abstract

The invention discloses high-temperature-resistant waterproof epoxy asphalt and a preparation method thereof. The high-temperature-resistant waterproof epoxy asphalt is prepared from the following raw materials in parts by weight: 40-50 parts of asphalt, 5-10 parts of concrete, 20-30 parts of bisphenol A epoxy resin, 5-7 parts of higher aliphatic amine, 1-2 parts of acrylonitrile, 0.2-0.4 part of epoxy chloropropane, 3-4 parts of hyper-branched polyester, 1-2 parts of an antioxidant, 2-3 parts of a filler and 0.1-0.2 part of a dispersing agent, wherein the filler is a mixture of talcum powder, diatomite and mica powder, and the higher aliphatic amine is one or more of octadecyl amine and dodecyl amine. The bisphenol A epoxy resin and the asphalt are mixed, a three-dimensional interpenetrating network structure polymer can be formed, the adhesive force, the tensile strength and the thermal stability of the product can be fundamentally changed, hyper-branched polyester is added, the asphalt is subjected to toughening modification, the problem of poor compatibility can be avoided, and the tensile strength of the product at low temperature can be improved.

Description

technical field [0001] The invention relates to the technical field of epoxy asphalt, in particular to a high-temperature-resistant and waterproof epoxy asphalt and a preparation method thereof. Background technique [0002] Epoxy asphalt is a mixture modified by using epoxy resin and asphalt, which has good ductility and shrinkage properties, and is widely used in roads, bridges, etc. [0003] Most of the common asphalt on the market is to increase the tensile strength of the product by adding additives, but in an environment with extremely low temperature, the desired effect cannot be achieved by adding additives, so the asphalt needs to be modified. Conventional modification is to add rubber, plastic, etc., but due to its large molecular weight, it has poor compatibility with asphalt, resulting in a decrease in the tensile strength of the product at low temperatures, and the epoxy value of the epoxy resin used is large Different products lead to different curing degrees....

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Problems solved by technology

[0003] Most of the common asphalt on the market is to increase the tensile strength of the product by adding additives, but in an environment with extremely low temperature, the desired effect cannot be achieved by adding additives, so the asphalt needs to be modified. Conventional modification is to add rubber, plastic, etc., but due to its large molecular weight, it has poor compatibility with asphalt, resulting in a decrease in the tensile strength of the product at low temperatures, and the epoxy value of the epoxy resin used is large Different products lead to different curing degrees. The higher the epoxy value of epoxy resin, the lower the viscosity, and the lower the tensile strength of the cured product. Therefore, a high temperature resistant waterproof epoxy resin was invented. Asphalt and its preparation method are particularly important

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