High-strength vibration-reduction epoxy mortar with nano improver

Abstract

The invention discloses high-strength vibration-reduction epoxy mortar with a nano improver. The high-strength vibration-reduction epoxy mortar consists of three components A, B and C, wherein the component A is a substrate mixture; the component B is an auxiliary mixture; the component C is a curing mixture; the component A consists of the following various raw materials in parts by weight: 80-100 parts of modified epoxy resin, 45-70 parts of cement and 100-300 parts of quartz sand; the component B consists of the following various raw materials in parts by weight: 10-50 parts of a nano improver, 3-5 parts of a silane coupling, 0-1 part of a defoaming agent and 10-15 parts of a diluent; the component C consists of the following various raw materials in parts by weight: 40-55 parts of a curing agent and 1-5 parts of a toughening agent; the weight ratio of the component A, the component B to the component C is (80-100):(5-100):(50-600). The high-strength vibration-reduction epoxy mortar disclosed by the invention has the advantages of being high in strength, good in vibration reduction effect, good in binding force with a concrete substrate, good in compatibility and the like, and can be used as a secondary grouting material of complex industrial vibration equipment.

Description

technical field [0001] The invention relates to the technical field of polymer building materials, in particular to a high-strength vibration-damping epoxy mortar added with a nano-modifier. Background technique [0002] Epoxy mortar refers to the artificial preparation of epoxy resin coating with fine quartz sand. Epoxy resin generally refers to organic polymer compounds containing two or more epoxy groups in the molecule. Except for a few, their The relative molecular mass is not high. The molecular structure of epoxy resin is characterized by active epoxy groups in the molecular chain, and the epoxy groups can be located at the end, middle or ring structure of the molecular chain. Due to the active epoxy groups in the molecular structure, they can undergo cross-linking reactions with various types of curing agents to form insoluble, infusible high polymers with a three-dimensional network structure. [0003] Due to its excellent bonding and mechanical properties, epoxy ...

AI Technical Summary

Problems solved by technology

The epoxy mortar currently being studied has a higher coefficient of linear expansion than ordinary concrete materials and a lower toughness. Therefore, problems such as separation and cracking between the mortar layer and the concrete base are prone to occur after construction.