Building adhesive for steel structure and preparation method of building adhesive

Abstract

The invention discloses a building adhesive for a steel structure and belongs to the technical field of adhesives. The building adhesive comprises the following raw materials in parts by weight: 15-18 parts of silicate, 4-6 parts of starch, 15-17 parts of fluorinated silicone rubber, 70-80 parts of vinyl acetate resin, 7-9 parts of ceramic fiber, 12-16 parts of aluminum powder, 4-6 parts of titanium dioxide, 3-5 parts of molybdenum disulfide, 1-2 parts of a curing agent, 2-3 parts of an accelerant, 3-4 parts of an anti-rusting agent, 0.5-1 part of an anti-mold agent and 0.5-0.8 part of an anti-aging agent. The invention further discloses a preparation method of power equipment protection paint. The building adhesive is good in adhesion property, high in strength, good in rusting resistance, high temperature resistance and corrosion resistance and long in service life.

Description

technical field [0001] The invention relates to the technical field of adhesives, in particular to a building adhesive for steel structures and a preparation method thereof. Background technique [0002] Steel structure is a structure mainly made of steel, which is one of the main types of building structures. Steel is characterized by high strength, light weight, good overall rigidity, and strong deformation ability, so it is especially suitable for building large-span, ultra-high, and ultra-heavy buildings; the material has good homogeneity and isotropy, and is an ideal elastic body , which is most in line with the basic assumptions of general engineering mechanics; the material has good plasticity and toughness, can have large deformation, and can withstand dynamic loads well; the construction period is short; its high degree of industrialization can carry out specialized production with a high degree of mechanization. Steel structures should study high-strength steel to...

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Problems solved by technology

[0004] But the characteristic of existing building adhesive is few, and ability is insufficient, such as in the patent document that publication number is CN104449536A, discloses a kind of building adhesive for steel structure; Be made by the raw material of following weight number: nanometer oxidation 2-3 parts of zinc, 53-58 parts of polytetrahydrofuran ether glycol, 18-22 parts of isophorone diisocyanate, 2-4 parts of epichlorohydrin, 4-6 parts of dimethylethanolamine, 5 parts of nano-tungsten trioxide -6 parts, 9-12 parts of 6101 epoxy resin, 9-12 parts of carboxyl-terminated liquid polybutadiene rubber, 9-12 parts of nano-silicon carbide, 1.5-2 parts of dodecylbenzenesulfonic acid, 6 parts of zinc isooctanoate -9 parts, boron trifluoride monoethylamine 5-6 parts

The building adhesive for steel structures of the invention has strong adhesive force, good mechanical properties, and can be cured at room temperature, especially the "steel-steel" bonding shear strength and the "steel-concrete" bonding shear strength are high, and have good Excellent toughness and impact resistance, the tensile strength of steel-steel bonding reaches 61.8MPa; but the high temperature resistance, rust resistance, corrosion resistance and service life of the adhesive are insufficient, and it is difficult to meet the needs of building development