Building sealing glue and preparation method thereof

Abstract

The invention provides building sealing glue. The building sealing glue is prepared from a component A, a component B and a component C, wherein the component A is prepared from the following components in parts by weight: 20 to 90 parts of epoxy resin, 3 to 40 parts of a plasticizer, 0.1 to 10 parts of a coupling agent, 0.1 to 10 parts of a thixotropic agent, 0.1 to 20 parts of hollow glass bead and 10 to 50 parts of filling; the component B is prepared from the following components in parts by weight: 20 to 90 parts of a curing agent, 0 to 8 parts of an accelerant, 0.1 to 10 parts of the thixotropic agent, 0 to 10 parts of the coupling agent, 0.1 to 20 parts of the hollow glass bead and 10 to 50 parts of the filling; the component C is prepared from the following components in parts by weight: 70 to 120 parts of quartz sand and 0.5 to 2 parts of carbon black. The building sealing glue provided by the invention has relatively suitable thermal expansion and cold contraction performance and has relatively good compatibility performance with a prefabricated part, so that phenomena that the building sealing glue is cracked and the like, caused by decoration, can be avoided.

Description

technical field [0001] The invention relates to a building gap filling technology, in particular to a building sealant and a preparation method thereof. Background technique [0002] In the construction industry, with the improvement of people's living standards, prefabricated buildings, as a new type of construction method, have the advantages of good quality, high efficiency, and fast construction speed, and their proportion in the construction field is increasing. . Under this trend, some new materials that match with it are also used in this field. This technical solution is mainly aimed at sealing and repairing the gaps generated between different prefabricated component bodies to prevent them from being due to the gravity of the material itself. And cracking caused by thermal expansion and contraction. [0003] The usual practice in the prior art is to use materials such as cement mortar or polyurethane foam to repair the gaps generated by the components in the prefa...

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Problems solved by technology

[0003] The usual practice in the prior art is to use materials such as cement mortar or polyurethane foam to repair the gaps generated by the components in the prefabricated building. After decoration, the repaired place will crack after a period of time, especially After being affected by the alternating cold and hot environment, the filling materials in the building gaps are extremely easy to crack. While the cracks affect the appearance of the building, the more serious consequence is that the waterproof performance of the building will be greatly affected, resulting in problems with the waterproofing of the building. , which will result in the performance of the entire building using

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