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Fluorine-modified hydrophobic epoxy grouting material and preparation method thereof

An epoxy grouting and hydrophobic technology, applied in the direction of epoxy resin coatings, coatings, etc., can solve the problems of low compressive strength, reduced adhesion, low hardness, etc., and achieve strong impact resistance, acid and alkali resistance Improvement, the effect of high hardness

Inactive Publication Date: 2018-04-03
HUNAN CHENLI NEW MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the epoxy resin grouting material mainly has the following problems: the viscosity of the epoxy resin is too high, and it is not easy to inject during the grouting process; when the epoxy resin is added with other filler additives such as sodium silicate, the filler has a strong adsorption force to the epoxy resin, and the filler distribution is not good. Uniformity, unable to achieve uniform filling and bonding, it is easy to cause low grouting strength, reduced adhesion, and easy cracks; during the grouting process, it is greatly affected by the environment, and it is easy to cause dry cracking after hardening. Oxygen resin produces water accumulation and water seepage after grouting, the plugging is not firm, and the compressive strength is low
[0004] However, the existing epoxy grouting technology still has the disadvantages of poor hydrophobicity, poor chemical corrosion resistance and low hardness.

Method used

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  • Fluorine-modified hydrophobic epoxy grouting material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] A fluorine-modified hydrophobic epoxy grout, which is a fluorine-modified hydrophobic epoxy grout modified by using Kevlar fiber as a chemical and physical reinforcing agent, a fluorine-containing coupling agent, and an organic fluorine curing agent. A and B components, wherein, in parts by mass, component A: 80 parts of bisphenol A epoxy resin, 10 parts of 1H,1H,2H,2H-heptadecafluorodecyltrimethoxysilane, 25 parts of 2 -(3,4-epoxycyclohexyl)ethyltrimethoxysilane; in parts by mass, component B: 15 parts of 2-perfluorotriethylene tetraamine phenol, 18 parts of Kevlar fiber (particle size 40~80μm, length 3mm~60mm), 10 parts of 2,4,6-tris(dimethylamino)phenol, 18 parts of benzyl alcohol, 3 parts of lead naphthenate.

Embodiment 2

[0023] A fluorine-modified hydrophobic epoxy grout, which is a fluorine-modified hydrophobic epoxy grout modified by using Kevlar fiber as a chemical and physical reinforcing agent, a fluorine-containing coupling agent, and an organic fluorine curing agent. A and B components are composed, wherein, in parts by mass, component A: 100 parts of bisphenol F epoxy resin, 20 parts of dimethyl-mono(pentafluorophenyl) propyl-monomethoxysilane, 35 parts Parts of allyl glycidyl ether; in parts by mass, component B: 20 ​​parts of tetrafluoro-1,2-ethanedithiol, 12 parts of Kevlar fiber (diameter 30-60 μm, length 1mm-5mm), 6 parts 2,4,6-tris(dimethylamino)phenol, 12 parts of benzyl alcohol, 6 parts of dibutyltin maleate.

Embodiment 3

[0025] A fluorine-modified hydrophobic epoxy grout, which is a fluorine-modified hydrophobic epoxy grout modified by using Kevlar fiber as a chemical and physical reinforcing agent, a fluorine-containing coupling agent, and an organic fluorine curing agent. A and B components, wherein, in parts by mass, component A: 88 parts of bisphenol F epoxy resin, 16 parts of trifluoromethyltrimethoxysilane, 32 parts of 2-(3,4-epoxy Cyclohexyl)ethyltrimethoxysilane; in parts by mass, component B: 18 parts of perfluorotetraethylenepentamine, 14 parts of Kevlar fiber (80-100 μm in diameter, 5 mm-10 mm in length), 9 parts of N , N-dimethylaniline, 14 parts of benzyl alcohol, 4.5 parts of dibutyltin dilaurate.

[0026] A fluorine-modified hydrophobic epoxy grout in Examples 1-3, the preparation method is as follows:

[0027] (1) Add epoxy resin, reactive diluent, and fluorine-containing coupling agent into the dispersion tank a, stir and mix evenly, and take it out for use as component A; ad...

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Abstract

The invention relates to a fluorine-modified hydrophobic epoxy grouting material and a preparation method thereof. The fluorine-modified hydrophobic epoxy grouting material is prepared from the following components in parts by weight: a component A: 80 to 100 parts of epoxy resin, 10 to 20 parts of a fluorine-containing coupling agent, 25 to 35 parts of a reactive diluent; a component B: 15 to 20parts of an organic fluorine curing agent, 12 to 18 parts of Kevlar fiber, 6 to 10 parts of a curing accelerator, 12 to 18 parts of benzyl alcohol and 3 to 6 parts of a catalyst. The fluorine-modifiedhydrophobic epoxy grouting material disclosed by the invention has the advantages of high hydrophobicity, high acid and alkali resistance, higher hardness and higher impact resistance.

Description

technical field [0001] The invention relates to a grouting material, in particular to a fluorine-modified hydrophobic epoxy grouting material and a preparation method thereof. technical background [0002] Since the promotion and application of grouting materials in China in the 1990s, they have been widely used in equipment installation, bolt anchorage, and reinforcement and renovation projects of many large and medium-sized enterprises. The scope of use has gradually expanded from a single metallurgical industry to Municipal, environmental protection, electric power, ports and other industries. Epoxy resin has the characteristics of high bonding strength, can be cured at room temperature, high mechanical properties and good corrosion resistance, so it is widely used in many fields such as electronics, machinery, construction, etc. as adhesives, coatings, and grouting materials. Epoxy resin grouting material is currently the most widely used chemical grouting material. Th...

Claims

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Application Information

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IPC IPC(8): C08L63/00C08L77/10C08K5/5419C08G59/50C08G59/62C08G59/66C09D163/00C09D7/63
CPCC08L63/00C08G59/5006C08G59/623C08G59/66C08L2205/16C09D163/00C08L77/10C08K5/5419
Inventor 万章文
Owner HUNAN CHENLI NEW MATERIAL CO LTD
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