A kind of environment-friendly stone back reinforcement glue and preparation method thereof

Abstract

The invention provides an environment-friendly stone backing glue and a preparation method thereof, the environment-friendly stone backing glue includes A component and B component, A component includes an environment-friendly unsaturated polyester resin and an anti-shrinkage toughening agent, B The components include a peroxide initiator; the anti-shrinkage toughening agent includes a paste formed by dissolving methyl vinyl silicone rubber raw rubber and natural rubber raw rubber in petroleum ether after mixing, and the anti-shrinkage toughening agent The mass percentage of the toughening agent in the environment-friendly unsaturated polyester resin is 5-15%. The environment-friendly stone back reinforcement glue of the present invention uses unsaturated polyester resin as a matrix, which can fully provide the colloid with excellent water and acid resistance properties, and is dissolved in petroleum ether after mixing methyl vinyl silicone rubber raw rubber and natural rubber raw rubber. The formed paste can greatly improve the toughness of the environmentally friendly stone backing adhesive, and at the same time improve the shrinkage resistance, so that no additional anti-shrinkage agent is needed, and an environmentally friendly stone backing adhesive with excellent comprehensive mechanical properties is obtained.

Description

technical field [0001] The invention relates to the technical field of building materials, in particular to an environment-friendly stone back reinforcement and a preparation method thereof. Background technique [0002] In the field of building materials, stone back reinforcement means that after the stone is cut into slabs, in order to avoid damage or breakage during transportation, operation, etc., grooves are added to the back of the stone to add steel bars, so that the stone has better firmness. The stone back reinforcement glue is used to fix the steel bars. As a kind of reinforcement glue, it plays a vital role in ensuring the quality of the stone. [0003] At present, white cement or marble glue is mainly used for reinforcement of stone back reinforcement, but they all have some disadvantages. The cement curing time is long, which affects the construction, and at least one week of water curing time is required, so that the stone is prone to pathological changes in a...

AI Technical Summary

Problems solved by technology

The cement curing time is long, which affects the construction, and at least one week of water curing time is required, so that the stone is prone to pathological changes in a humid environment, such as water spots, white blooms, wet marks, etc., which will affect the appearance; moreover, the cement should not be corroded by acid. The substance and the calcium hydroxide in the cement will undergo a neutralization reaction, and the volume of the product will be loose and swell, and it will be easily hydrolyzed and pulverized when it meets water, causing the steel bar to fall off

However, marble glue has the problems of large shrinkage rate and brittle performance after curing, and marble glue is usually a viscous paste, which is not easy to level in stone grooves, which is not conducive to construction

In addition, the active diluent of the unsaturated polyester resin used in the existing marble glue is styrene, and styrene is easy to volatilize to form "ice ice" (self-polymer produced by volatilization of styrene), which affects the storage stability of the colloid; and volatilization The styrene released will also pollute the environment and damage the health of construction operators

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