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Anchoring adhesive and preparation process thereof

A kind of reinforced glue and basic technology, applied in the field of planted reinforced glue and its preparation technology, can solve the problems of reduced fatigue resistance, low thermodynamic entropy, shortened service life, etc., to reduce crystallinity, increase thermodynamic entropy, and enhance chaos. Effect

Inactive Publication Date: 2013-05-22
CHENGDU JIAXIN TECH
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AI Technical Summary

Problems solved by technology

[0002] As one of the key technologies of high-speed rail construction, the anchoring of high-speed rail track slabs has been restricted by the performance of the planting glue product. The reason is that most of the epoxy resin materials made of the planting glue are cured composite materials. Strong crystalline properties, that is, the structure after solidification is relatively regular, and it belongs to the material with low thermodynamic entropy. This material has strong crystallinity, and its macroscopic mechanical properties are hard and brittle, which greatly reduces its fatigue resistance. The service life is also greatly shortened

Method used

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  • Anchoring adhesive and preparation process thereof

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Embodiment Construction

[0022] Below we will further illustrate the present invention in conjunction with specific embodiments.

[0023] Take by weighing 60kg of epoxy resin, 35kg of silicon micropowder, fumed silica, calcium carbonate and talcum powder, the anti-sagging agent is fumed silica 1kg, and the anti-settling agent is selected modified polyamide wax powder (provided by Taiyuan Meitexiang Technology Co., Ltd.) 2kg and the wetting agent selected from organic silicon wetting agent FY-4808 wetting extender (produced by Guangzhou Fluorine Silicon Technology Co., Ltd.) 2kg; put them into the kneader and mix in turn, and the temperature during the mixing process is 60 °C, the time is 40min, and A component is obtained.

[0024] Take by weighing diethylenetriamine, triethylenetetramine, tetraethylenepentamine and polyethylene polyamine total 90kg, modifying agent selects 9.9kg of hydroxyl-terminated polybutadiene, catalyst (zinc stearate, cobalt naphthenate and cyclic Zinc alkanoate) 0.1kg in a re...

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Abstract

An anchoring adhesive is characterized in that the adhesive is prepared by mixing an A component and a B component; the mixing ratio of the A component and the B component is A:B=3:1 on a weight basis; the A component is prepared by the following raw materials on a mass basis: 60% of epoxy resin, 35% of fillers, 1% of anti-sagging agents, 2% of anti-sediment agents, and 2% of wetting agents; the B component is prepared by the following raw materials on a mass basis: 55% of modified basic curing agents, and 45% of fillers; According to the invention, through modification of epoxy resin, the confusion degree of its curing product is enhanced; the thermodynamic entropy is increased; the crystallinity is reduced; the curing product not only meets mechanical properties of anchoring adhesives, but also has reduced hardness and brittleness, enhanced flexibility, and greatly improved fatigue resistance.

Description

technical field [0001] The invention relates to the field of chemical raw materials, in particular to a plant glue and a preparation process thereof. Background technique [0002] As one of the key technologies of high-speed rail construction, the anchoring of high-speed rail track slabs has been restricted by the performance of the planting glue product. The reason is that most of the epoxy resin materials made of the planting glue are cured composite materials. Strong crystalline properties, that is, the structure after solidification is relatively regular, and it belongs to the material with low thermodynamic entropy. This material has strong crystallinity, and its macroscopic mechanical properties are hard and brittle, which greatly reduces its fatigue resistance. The service life is also greatly shortened. Contents of the invention [0003] In view of the above shortcomings, the purpose of the present invention is to combine the advantages of existing technologies to...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09J163/00C09J11/04
Inventor 钱炳黄泰东王玉树
Owner CHENGDU JIAXIN TECH
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