A kind of building structure adhesive and preparation method thereof

Abstract

The application provides a building structure adhesive and a preparation method thereof, including component A and component B. The component A includes the following raw materials in parts by weight: 65-80 parts of epoxy resin, 10 parts of reactive epoxy diluent ~20 parts, 10~20 parts of epoxy-terminated block polyether silicone oil, 1~2 parts of coupling agent, 200~250 parts of active filler, 1~4 parts of thixotropic agent; the component B includes the following raw materials in parts by weight: Modified amine curing agent 100 parts, active filler 200-250 parts, thixotropic agent 1-4 parts. The content of filler in this application is relatively high, and the elongation is greater than 1.5%. On the basis of meeting the requirements of relevant standards, the content of filler can exceed 66.6%, and the cost is low. Other mechanical properties and damp heat aging properties fully meet the national standard GB50367- 2013, GB50550-2010, GB50728-2011 requirements, and the raw materials of this application are all publicly sold products on the market, easy to purchase, convenient source, moderate price, and good cost performance.

Description

technical field [0001] The present application relates to the field of sanitation and disinfection in the technical field of building structure reinforcement adhesives, in particular to a building structure adhesive and a preparation method thereof. Background technique [0002] Building structure reinforcement adhesive is a kind of construction adhesive with polymer synthetic material as the main component. It has the characteristics of great cohesion and high bonding strength after curing. It is widely used in building reinforcement and reinforcement, high-rise building seismic reconstruction, road repair, Bridge reinforcement and other fields. The national authorities have promulgated specifications for the design, construction and material safety of building reinforcement, namely "Code for Design of Concrete Structure Reinforcement" (GB50367-2013), "Code for Construction Quality Acceptance of Building Structure Reinforcement Engineering" (GB50550-2010), "Technical Speci...

AI Technical Summary

Problems solved by technology

However, at present, the filler content of these two adhesives on the market is very high, exceeding 60%. The actual test of the elongation at break of the colloid is less than 1.0%. This value cannot meet the "Concrete Structure Reinforcement Design Code" ( GB50367-2013), "Code for Construction Quality Acceptance of Building Structure Reinforcement Engineering" (GB50550-2010), "Technical Specification for Safety Appraisal of Engineering Structure Reinforcement Materials" (GB50728-2011), the use of such products in building structure reinforcement There may be a safety hazard

If only from the point of view of adhesive technology, the technical solution without filler or less filler is adopted, but the realization reaches the corresponding standards, but the structural adhesive of the less filler system has great advantages in construction process performance, creep resistance of the colloid, and the relationship between the colloid and the substrate. High and low temperature stress, production cost, etc. are much inferior to structural adhesives with rich filler systems

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