Analysis of the effect of DMDEE dimorpholine diethyl ether in building insulation materials: a new method to enhance thermal insulation performance

Introduction

With the intensification of the global energy crisis and the increase in environmental protection awareness, building energy conservation has become the focus of today's society. As an important part of energy-saving buildings, building insulation materials directly affect the energy consumption and comfort of the building. In recent years, DMDEE (bimorpholine diethyl ether) has been widely used in building insulation materials as a new type of chemical additive to enhance its thermal insulation performance. This article will conduct a detailed analysis from the aspects of the basic characteristics, application principles, product parameters, experimental data and practical application effects of DMDEE, and explore its application prospects in building insulation materials.

1. Basic characteristics of DMDEE

1.1 Chemical structure

DMDEE (bimorpholine diethyl ether) is an organic compound with a chemical structural formula of C12H24N2O2. It is composed of two morpholine rings connected by ethyl ether bonds and has high chemical stability and thermal stability.

1.2 Physical Properties

parameter name	value
Molecular Weight	228.33 g/mol
Density	1.02 g/cm³
Boiling point	250°C
Flashpoint	110°C
Solution	Easy soluble in water and organic solvents

1.3 Chemical Properties

DMDEE has good reactivity and can react with a variety of chemical substances to form stable compounds. The ether bonds and morpholine rings in its molecular structure make it have excellent catalytic properties and plasticization effects.

2. Principles of application of DMDEE in building insulation materials

2.1 Thermal insulation mechanism

DMDEE can form microporous structures in building insulation materials through its unique chemical structure, thereby effectively reducing the thermal conductivity of the material. Its mechanism of action mainly includes the following aspects:

1. Micropore structure formation: DMDEE can promote the formation of micropores in thermal insulation materials, increase the porosity of the material, and thus reduce heat conduction.
2. Interface effect: The ether bonds and morpholine rings in DMDEE molecules can form a stable interface with other components in the insulation material, reducing heat transfer.
3. Catalytic Effect: DMDEE can catalyze chemical reactions in thermal insulation materials, promote cross-linking and curing of materials, and improve the mechanical and thermal insulation properties of materials.

2.2 Application method

DMDEE is usually added to building insulation materials in the form of additives, and the amount of addition is adjusted according to the specific material and application requirements. Common application methods include:

1. Direct Mixing: Mix DMDEE directly with the base components of the insulation material, and distribute it evenly by stirring.
2. Solution impregnation: Dissolve DMDEE in an appropriate solvent, and then immerse the insulation material in the solution to allow it to absorb it fully.
3. Surface coating: Apply the DMDEE solution to the surface of the insulation material to form a layer of heat-insulating film.

III. Product parameters of DMDEE in building insulation materials

3.1 Addition amount

Insulation Material Type	DMDEE addition amount (wt%)
Polyurethane foam	0.5-2.0
Polystyrene Foam	0.3-1.5
Glass Wool	0.2-1.0
Rockwool	0.2-1.0

3.2 Performance parameters

parameter name	Down DMDEE	Add DMDEE
Thermal conductivity coefficient (W/m·K)	0.035	0.025
Compressive Strength (MPa)	0.15	0.20
Water absorption rate(%)	2.5	1.8
combustion performance	Level B2	Level B1

3.3 Application Effect

Application Scenario	Down DMDEE	Add DMDEE
Exterior wall insulation	The thermal insulation effect is average	The thermal insulation effect is significantly improved
Roof insulation	Poor thermal insulation effect	The thermal insulation effect is significantly improved
Floor insulation	The thermal insulation effect is average	The thermal insulation effect is significantly improved

IV. Experimental data analysis

4.1 Experimental Design

To verify the application effect of DMDEE in building insulation materials, we designed a series of experiments, including thermal conductivity test, compressive strength test, water absorption test and combustion performance test.

4.2 Experimental results

4.2.1 Thermal conductivity test

Sample number	Thermal conductivity coefficient (W/m·K)
1 (DMDEE not added)	0.035
2 (add DMDEE)	0.025

The experimental results show that after the addition of DMDEE, the thermal conductivity of the insulation material is significantly reduced and the thermal insulation performance is significantly improved.

4.2.2 Compressive strength test

Sample number	Compressive Strength (MPa)
1 (DMDEE not added)	0.15
2 (add DMDEE)	0.20

The experimental results show that after the addition of DMDEE, the compressive strength of the insulation material is improved and the mechanical properties are enhanced.

4.2.3 Water absorption test

Sample number	Water absorption rate (%)
1 (DMDEE not added)	2.5
2 (add DMDEE)	1.8

The experimental results show that after the addition of DMDEE, the water absorption rate of the insulation material decreases and the waterproof performance is improved.

4.2.4 Combustion performance test

Sample number	Combustion performance level
1 (DMDEE not added)	Level B2
2 (add DMDEE)	Level B1

The experimental results show that after the addition of DMDEE, the combustion performance of the insulation material is improved and the fire resistance is enhanced.

5. Practical application case analysis

5.1 Case 1: Exterior wall insulation of a high-rise residential building

In the exterior wall insulation project of a high-rise residential building, polyurethane foam material with DMDEE was used. After the construction is completed, after a year of actual use, the residents reported that the indoor temperature is more stable, and the heating cost in winter is reduced by 15%.

5.2 Case 2: Roof insulation of a commercial complex

In the roof insulation project of a commercial complex, polystyrene foam material with DMDEE added is used. After the construction was completed, after summer high temperature testing, the roof surface temperature was reduced by 10°C and the indoor air conditioning energy consumption was reduced by 20%.

5.3 Case 3: Floor insulation of a gymnasium

In the floor insulation project of a gymnasium, glass wool material with DMDEE is used. After the construction is completed, after winter low temperature test, the floor surface temperature has been increased by 5°C, and the indoor comfort has been significantly improved.

VI. Application prospects of DMDEE in building insulation materials

6.1 Technical Advantages

1. High-efficiency heat insulation: DMDEE can significantly reduce the thermal conductivity of insulation materials, improveHigh thermal insulation performance.
2. Enhanced Mechanical Performance: DMDEE can improve the compressive strength and tensile strength of insulation materials and enhance its mechanical properties.
3. Improving waterproofing performance: DMDEE can reduce the water absorption rate of insulation materials and improve its waterproofing performance.
4. Improving fire resistance: DMDEE can improve the combustion performance of insulation materials and enhance its fire resistance.

6.2 Market prospects

With the continuous improvement of building energy saving requirements, DMDEE has broad application prospects in building insulation materials. It is expected that the market demand for DMDEE will continue to grow rapidly in the next few years, especially in areas such as high-rise buildings, commercial complexes and public facilities.

6.3 Technical Challenges

Although DMDEE exhibits excellent performance in building insulation materials, its application still faces some technical challenges, such as:

1. Cost Control: DMDEE has a high production cost, and how to reduce its costs is the key to promotion and application.
2. Process Optimization: The amount of DMDEE added and process conditions need to be further optimized to improve its application effect.
3. Environmental Protection Requirements: The production and application of DMDEE need to meet environmental protection requirements and reduce environmental pollution.

7. Conclusion

DMDEE, as a new type of chemical additive, exhibits excellent thermal insulation, mechanical properties, waterproof properties and fire resistance in building insulation materials. Through the analysis of experimental data and practical application cases, the wide application prospect of DMDEE in building insulation materials is proved. Despite some technical challenges, with the continuous advancement of technology and the continuous expansion of the market, DMDEE will be more and more widely used in the field of building energy conservation, making important contributions to building energy conservation and environmental protection.

References

1. Zhang San, Li Si. Research on the application of DMDEE in building insulation materials[J]. Journal of Building Materials, 2022, 25(3): 45-50.
2. Wang Wu, Zhao Liu. Analysis of the application effect of DMDEE in polyurethane foam[J]. Chemical Engineering, 2021, 39(2): 78-85.
3. Chen Qi, Zhou Ba. Application Prospects of DMDEE in Building Energy Saving[J]. Energy Saving Technology, 2020, 38(4): 112-118.

(Note: This article is original content, notReferring to any external links, all data and cases are fictional and are for example only. )

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