Building sealing material and preparation method thereof

Abstract

The invention provides a sealing material for construction, which is characterized in that, the raw material composition of the sealing material, in parts by weight, includes: 90-110 parts of a silane-modified polymer; 20-40 parts of a plasticizer; 100-150 parts of filler; 0.5-2 parts of volatile organic solvent; 1-2 parts of thixotropic agent; 1-2 parts of penetrant; 0.05-2 parts of catalyst; 0.5-2 parts of coupling agent; 1 part; the silane-modified polymer is a hydrolyzable alkoxy-terminated polyether or alkoxy-terminated polyurethane; the plasticizer is a phthalate compound; the penetrating agent is selected from the general Formula is C n h 2n+1 Si(OR) 3 The compound, wherein n = 4 ~ 16, R is methyl or ethyl. The sealing material has a good penetrating and bonding effect, has a reinforcing effect on the building connection surface, and can be widely used in the sealing and waterproofing of prefabricated building joints.

Description

technical field [0001] The invention belongs to the field of building materials and its manufacture, and in particular relates to a building sealing material and a preparation method thereof. Background technique [0002] Prefabricated buildings use modern industrial means and modern industrial organizations to integrate various production elements in various stages of building construction through technical means and system integration to achieve building standardization, component production factoryization, housing department, product serialization, and on-site construction. The assembly of construction, the integration of civil engineering and decoration, and the socialization of production and operation form an orderly factory flow operation. Due to the advantages of high construction efficiency, good quality, low energy consumption, low environmental pollution, and simple construction of prefabricated buildings, prefabricated buildings in my country have developed rapid...

AI Technical Summary

Problems solved by technology

Since the prefabricated components used in prefabricated buildings are concrete, cement mortar, fiber cement board and other materials, these materials are porous, the surface is loose, and the smoothness is uneven. Ordinary sealing materials can only bond the skin layer. Once the skin layer is damaged and falls off, it will Lead to waterproof failure; moreover, release agents are often added when prefabricating components. There are many types of release agents, and the surface properties of components produced by different component factories vary greatly, resulting in poor applicability of the same sealing material to different projects

In order to ensure the quality of the project, the primer must be applied to the joints before gluing. Brushing the primer makes the construction relatively troublesome, the construction efficiency is low, and the labor cost is increased; moreover, the primer generally contains a large amount of organic solvents, which is harmful to the construction personnel. polluted environment

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