Environment-friendly additive of crack filler and preparation method

Abstract

The invention discloses an environment-friendly additive of crack filler and a preparation method. The environment-friendly additive of the crack filler is characterized by being prepared from, by mass, 2-3 parts of ethylene-vinyl acetate copolymer, 8-12 parts of vitrified micro bubbles, 2-2.4 parts of gas phase silicon dioxide, 1-1.5 parts of acrylic resin, 3-6 parts of hydroxypropyl methyl cellulose, 1-1.3 parts of inorganic aluminum salt water-proofing agents, 0.5-1.5 parts of ferrous sulfate, 1.5-1.9 parts of RTV organic silica gel and 0.4-0.6 part of antioxygen 1076. Ultrasonic dispersion is conducted on the ethylene-vinyl acetate copolymer and the acrylic resin for 0.5-1 hour, then the gas phase silicon dioxide, the inorganic aluminum salt water-proofing agents, magnesium aluminium silicate, the antioxygen 1076 and the RTV organic silica gel are added, high-speed stirring and dispersion is conducted for 1-1.5 hours, finally the vitrified micro bubbles and the hydroxypropyl methyl cellulose are added, the mixture is slowly cooled to room temperature, and the environment-friendly additive of the crack filler is obtained.

Description

technical field [0001] The invention relates to a caulking agent for construction, in particular to a green environmental protection additive for the caulking agent and a preparation method. Background technique [0002] Because the caulking agent can perfectly repair the cracks or damages on the ground surface, and it can also be prepared in rich colors, it is more and more popular among customers. However, most of the existing joint fillers are made of cement and are equipped with common additives for cement. They have the disadvantages of environmental resistance and environmental protection. They are safe in application and use, and have long life and limitations. They are prone to discoloration and fading due to long-term oxidation. Contents of the invention [0003] Aiming at the deficiencies of the prior art, the invention provides an environment-resistant, environment-friendly, non-discoloration and non-fading caulk additive and a preparation method. [0004] The ...

AI Technical Summary

Problems solved by technology

However, most of the existing joint fillers are made of cement, together with the additives commonly used in cement, which have defects in environmental resistance and environmental protection. They are safe in application and use, and have long life and limitations. They are prone to discoloration and fading due to long-term oxidation.