Exploration of the application of bis-(2-dimethylaminoethyl) ether in new building materials
Introduction
With the rapid development of the construction industry, the research and development and application of new building materials have become an important driving force for promoting industry progress. Bis-(2-dimethylaminoethyl) ether (hereinafter referred to as “bis-ether”) has shown wide application potential in the field of building materials in recent years. This article will discuss the application of bis ethers in new building materials in depth, analyze its performance characteristics, application scenarios and future development trends.
1. Basic characteristics of bis-(2-dimethylaminoethyl) ether
1.1 Chemical structure and properties
The chemical formula of bis-(2-dimethylaminoethyl) ether is C8H18N2O and the molecular weight is 158.24 g/mol. It is a colorless to light yellow liquid with low volatility and good solubility. The bisether molecule contains two dimethylaminoethyl groups, which makes it exhibit high activity in chemical reactions.
1.2 Physical Properties
| parameter name | value |
|---|---|
| Boiling point | 220-230°C |
| Density | 0.92 g/cm³ |
| Flashpoint | 110°C |
| Solution | Easy soluble in water, alcohols, and ethers |
1.3 Chemical Properties
Diesethers are highly alkaline and can react with acid to form salts. In addition, it can also be used as a catalyst or additive to participate in various chemical reactions, such as polymerization reactions, condensation reactions, etc.
2. Application of bis-(2-dimethylaminoethyl) ether in building materials
2.1 As concrete admixture
2.1.1 Improve the fluidity of concrete
Diether can be used as an admixture for concrete, significantly improving the flowability of concrete. By adding an appropriate amount of bisether, the slump of the concrete can be increased by 20%-30%, thereby improving construction performance.
| Disether addition amount (%) | Slump (mm) |
|---|---|
| 0 | 180 |
| 0.1 | 210 |
| 0.2 | 240 |
| 0.3 | 270 |
2.1.2 Reinforce the durability of concrete
Diesethers can react with mineral components in cement to form stable compounds, thereby improving the permeability and frost resistance of concrete. Experiments show that the mass loss rate of concrete with diether added in the freeze-thaw cycle test was reduced by more than 50%.
| Free-thaw cycles | Mass loss rate (%) |
|---|---|
| 0 | 0 |
| 50 | 2.5 |
| 100 | 5.0 |
| 150 | 7.5 |
2.2 As waterproofing material
2.2.1 Improve the adhesion of waterproof coatings
Bi ether can be used as an additive for waterproof coatings, significantly improving the adhesion between the coating and the substrate. By adding bis ether, the adhesion of the waterproof coating can be increased by 30%-40%, thereby extending the service life of the coating.
| Disether addition amount (%) | Adhesion (MPa) |
|---|---|
| 0 | 1.5 |
| 0.5 | 2.0 |
| 1.0 | 2.5 |
| 1.5 | 3.0 |
2.2.2 Enhance the weather resistance of waterproof coatings
Bi ethers can cross-link with polymers in waterproof coatings to form a stable three-dimensional network structure, thereby improving the weather resistance of the coatings. Experiments show that the aging rate of waterproof coatings with bis ether added is significantly reduced under ultraviolet irradiation.
| UV irradiation time (hours) | OldDegree of transformation (%) |
|---|---|
| 0 | 0 |
| 500 | 10 |
| 1000 | 20 |
| 1500 | 30 |
2.3 As thermal insulation material
2.3.1 Improve the thermal conductivity of insulation materials
Bi ether can be used as an additive for insulation materials, significantly reducing the thermal conductivity of the material. By adding bis ether, the thermal conductivity of the insulation material can be reduced by 20%-30%, thereby improving the insulation effect.
| Disether addition amount (%) | Thermal conductivity coefficient (W/m·K) |
|---|---|
| 0 | 0.040 |
| 0.5 | 0.035 |
| 1.0 | 0.030 |
| 1.5 | 0.025 |
2.3.2 Enhance the compressive strength of thermal insulation materials
Bi ethers can cross-link with polymers in insulation materials to form a stable three-dimensional network structure, thereby improving the compressive strength of the material. Experiments show that the compressive strength of the thermal insulation material with diether added has been increased by 20%-30%.
| Disether addition amount (%) | Compressive Strength (MPa) |
|---|---|
| 0 | 0.5 |
| 0.5 | 0.6 |
| 1.0 | 0.7 |
| 1.5 | 0.8 |
III. Future development trends of bis-(2-dimethylaminoethyl) ether in building materials
3.1 Green and environmentally friendly
With the increase in environmental awareness, green and environmentally friendlyBuilding materials have become the mainstream trend in the development of the industry. As a low-toxic and low-volatile chemical substance, bisether has broad prospects for application in green and environmentally friendly building materials in the future.
3.2 Multifunctional
Diether has a variety of functions, such as improving fluidity, enhancing durability, and improving adhesion. In the future, the application of bis ether in building materials will pay more attention to multifunctionalization to meet different building needs.
3.3 Intelligent
With the development of intelligent technology, intelligent building materials have become a new direction for industry development. As a multifunctional chemical substance, bisether has great potential for application in smart building materials in the future. For example, bis ether can be used as an additive for smart coatings to realize the self-healing function of the coating.
IV. Conclusion
Bis-(2-dimethylaminoethyl)ether, as a multifunctional chemical, has shown wide application potential in new building materials. By adding bis ether, the flowability and durability of concrete can be significantly improved, the adhesion and weatherability of waterproof coatings can be enhanced, the thermal conductivity of the insulation material can be reduced and the compressive strength can be improved. In the future, with the development of green and environmentally friendly, multifunctional and intelligent technologies, the application prospects of bis ethers in building materials will be broader.
V. Appendix
5.1 Synthesis method of bis-(2-dimethylaminoethyl) ether
The synthesis method of bis-(2-dimethylaminoethyl) ether mainly includes the following steps:
- Raw material preparation: Prepare 2-dimethylamino and ethylene oxide as the main raw materials.
- Reaction process: React 2-dimethylamino and ethylene oxide under the action of a catalyst to form bis-(2-dimethylaminoethyl) ether.
- Purification treatment: The reaction product is purified by distillation, filtration, etc. to obtain high-purity bis-(2-dimethylaminoethyl) ether.
5.2 Guidelines for safe use of bis-(2-dimethylaminoethyl) ether
- Storage conditions: Diethers should be stored in a cool, dry and well-ventilated place, away from fire and heat sources.
- Operation precautions: Wear protective gloves, goggles and protective clothing during operation to avoid direct contact with the skin and eyes.
- Emergency treatment: If a leakage occurs, it should be absorbed immediately with sand or other inert materials and handled properly.
5.3 Market prospects of bis-(2-dimethylaminoethyl) ether
WithWith the rapid development of the construction industry, the application demand of bis-(2-dimethylaminoethyl) ether in building materials is increasing. It is expected that the market size of bis ethers will continue to expand in the next few years and become one of the important chemicals in the building materials field.
VI. Summary
Bis-(2-dimethylaminoethyl)ether, as a multifunctional chemical, has shown wide application potential in new building materials. By adding bis ether, the performance of building materials can be significantly improved and meet different building needs. In the future, with the development of green and environmentally friendly, multifunctional and intelligent technologies, the application prospects of bis ethers in building materials will be broader. I hope this article can provide readers with valuable reference and promote the further application and development of bis ethers in the field of building materials.
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