Structural adhesive for dry hanging of wall decorative plates as well as preparation and usage method thereof

Abstract

The invention provides a structural adhesive for dry hanging of wall decorative plates as well as a preparation and a usage method thereof, and belongs to the field of constructional adhesive technology. The adhesive comprises a component A and a component B, and the component A comprises the following raw materials: 40-70 parts of vinyl modified epoxy resin, 10-30 parts of modified polyester resin, 5-20 parts of a diluent, 5-15 parts of a flexibilizer, 0.05-0.5 parts of a polymerization inhibitor, 0.03-0.3 parts of a promoter, 1-3 parts of a thixotropic agent, and 10-40 parts of a reinforcing filler; the component B comprises the following raw materials: 30-60 parts of a curing agent, 20-50 parts of a plasticizer, 0.5-2.5 parts of an emulsifying agent, 1-3 parts of the thixotropic agent, and 10-30 parts of the reinforcing filler. The usage method comprises the following steps: the component A and the component B are uniformly mixed according to a mass ratio 100:5-20 for usage. The construction efficiency is improved; lasting dry hanging effect of stones is guaranteed; the adhesive is environmentally friendly. The method has a short process step, the usage equipment is simple and process requirement is not tough. Convenience during usage is shown.

Description

technical field [0001] The invention belongs to the technical field of construction adhesives, and in particular relates to a structural adhesive for dry-hanging wall decorative panels, and also relates to a preparation and use method thereof. Background technique [0002] A typical example of the above-mentioned wall decorative panels is decorative stone. As known in the industry, there are two main construction methods for building stone curtain walls: one is wet construction; the other is dry-hanging construction. Since wet construction needs to rely on materials such as mortar, the construction efficiency is low and the cost is high. The cycle is long, and it is especially difficult to guarantee the lasting bonding effect with the wall. Therefore, it is gradually being ignored or even gradually eliminated. It is replaced by dry-hanging construction (that is, dry construction). Due to the disadvantages of legal work, it is highly valued by the industry. Because the cons...

AI Technical Summary

Problems solved by technology

But there are following shortcomings: one, when solidified at high ambient temperature, a strong pungent odor will be emitted, which will affect the construction personnel and the surrounding environment; two, the solidification speed is slow at normal temperature, especially low temperature environment, such as in The initial setting time at 5-10°C is 50-80min. After 2h, the compressive shear strength of stone and stone is less than 3MPa, which will affect the construction progress; third, after complete curing, the flexibility is poor, the elongation is low and impact resistance weaker ability