Low-temperature epoxy adhesive for embedded steel bars and preparation method of adhesive

A technology of planting tendon glue and epoxy resin, applied in the direction of epoxy resin glue, adhesive, adhesive type, etc., can solve the problems of unmentioned use temperature, unknown useability, low temperature performance research, etc., to achieve reasonable cost performance and applicable Long term and excellent construction performance

Active Publication Date: 2014-03-05
苏州市姑苏新型建材有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the anchoring construction in many cases needs to be carried out at low temperature, but most of the existing planting adhesives are generally required to be used above 5°C, and for use at lower temperatures, it is either not recommended to use, or it is not available. As mentioned, the reason is that the curing performance at low temperature is not good, or even can not be cured; or related products have not done research on low temperature performance
For example, the Chinese invention patent CN102408857A discloses a special epoxy planting glue for the anchorage of high-speed rail track slabs, which mainly improves the toughness and fatigue resistance by improving the epoxy resin, and does not mention the use temperature , so it is unknown whether it can be used at low temperature

Method used

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  • Low-temperature epoxy adhesive for embedded steel bars and preparation method of adhesive
  • Low-temperature epoxy adhesive for embedded steel bars and preparation method of adhesive
  • Low-temperature epoxy adhesive for embedded steel bars and preparation method of adhesive

Examples

Experimental program
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Effect test

Embodiment 1

[0058] A low-temperature epoxy planting glue, including component A and component B, specifically including the following components (by weight):

[0059]

[0060] The preparation method of the above-mentioned low-temperature epoxy planting reinforcement is as follows:

[0061] (1) Preparation of component A: Weigh the raw materials according to the above weight ratio, first mix 90.0 parts of bisphenol A epoxy resin, 10.0 parts of low viscosity bisphenol F epoxy resin, 10.0 parts of reactive diluent, 12.0 parts Add toughening agent 1, 0.5 parts of rheological additives, and 5.0 parts of thixotropic agent into the hydraulic disperser, stir at high speed for 1 hour, and finally add 8.0 parts of toughening agent 2 and 150.0 parts of filler, stir at medium speed for 0.5 hours and then leave material, packaged to obtain the finished product of component A;

[0062] (2) Preparation of component B: Weigh the raw materials according to the above weight ratio, add 40.0 parts of phe...

Embodiment 2

[0066] A low-temperature epoxy planting glue, including component A and component B, specifically including the following components (by weight):

[0067]

[0068] The preparation method of the above-mentioned low-temperature epoxy planting reinforcement is as follows:

[0069] (1) Preparation of component A: Weigh the raw materials according to the above weight ratio, first mix 85.0 parts of bisphenol A epoxy resin, 15.0 parts of low viscosity bisphenol F epoxy resin, 8.0 parts of reactive diluent, 8.0 parts of Add toughening agent 1, 1.5 parts of rheological additive, and 3.0 parts of thixotropic agent into the hydraulic disperser, stir at high speed for 1 hour, and finally add 15.0 parts of toughening agent 2 and 140.0 parts of filler, stir at medium speed for 0.5 hours and then discharge , packaged to obtain the finished product of component A;

[0070] (2) Preparation of component B: Weigh the raw materials according to the above weight ratio, add 30.0 parts of phenal...

Embodiment 3

[0074] A low-temperature epoxy planting glue, including component A and component B, specifically including the following components (by weight):

[0075]

[0076] The preparation method of the above-mentioned low-temperature epoxy planting reinforcement is as follows:

[0077] (1) Preparation of component A: Weigh the raw materials according to the above weight ratio, first mix 70.0 parts of bisphenol A epoxy resin, 30.0 parts of low viscosity bisphenol F epoxy resin, 5.0 parts of reactive diluent, 10.0 parts of Add toughening agent 1, 1.0 parts of rheological additive, and 2.0 parts of thixotropic agent into the hydraulic disperser, stir at high speed for 1 hour, and finally add 12.0 parts of toughening agent 2 and 120.0 parts of filler, stir at medium speed for 0.5 hours and then discharge , packaged to obtain the finished product of component A;

[0078] (2) Preparation of component B: Weigh the raw materials according to the above weight ratio, add 36.0 parts of phena...

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Abstract

The invention discloses a low-temperature epoxy adhesive for embedded steel bars and a preparation method of the adhesive. The low-temperature epoxy adhesive for the embedded steel bars comprises two components A and B; when the low-temperature epoxy adhesive is used, the mixing weight ratio of the component A to the component B is 2: (0.9-1.1). The low-temperature epoxy adhesive for the embedded steel bars, which is disclosed by the invention, can be used at low temperatures, and is stable in mechanical properties.

Description

technical field [0001] The invention relates to the field of building materials, in particular to a low-temperature epoxy rebar-planting glue and a preparation method thereof. Background technique [0002] After the 1960s, with the development of domestic petrochemical and synthetic materials, many new materials were developed. Especially in the construction industry, ordinary inorganic cement-based materials were usually used as anchoring materials in the past. Due to their shortcomings, such as poor chemical resistance and insufficient strength, they were gradually replaced by polymer organic anchoring. In the past, there were no related industries. Or national standards, which made the anchorage technology develop disorderly in the application of building construction. It was not until 1990 that the China Engineering Construction Standards Association promulgated the "Technical Regulations for Concrete Structure Strengthening CECS 25:90", and my country's building anchorag...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J163/00C09J11/04C09J11/06C08G59/50
Inventor 陈晓龙张晓华朱华
Owner 苏州市姑苏新型建材有限公司
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