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The softener effect of DMEA dimethylethanolamine in textile finishing

3月 8th, 2025 News

The softener effect of DMEA dimethylamine in textile finishing

Introduction

In the process of textile finishing, softeners are one of the indispensable chemicals. They can significantly improve the feel, softness and comfort of the fabric, thereby enhancing the consumer experience. As a multifunctional chemical, DMEA (dimethylamine) has gradually attracted attention in recent years. This article will discuss in detail the effect of DMEA in textile finishing, covering its chemical properties, mechanism of action, application methods, product parameters and actual effect evaluation.

1. Chemical properties of DMEA

1.1 Chemical structure

The chemical formula of DMEA (dimethylamine) is C4H11NO and the molecular weight is 89.14. It is a colorless to light yellow liquid with a unique amine odor. The molecular structure of DMEA contains two methyl groups and one amine group, which makes it both hydrophilic and lipophilic.

1.2 Physical Properties

parameters value
Boiling point 134-136°C
Melting point -59°C
Density 0.89 g/cm³
Flashpoint 40°C
Solution Easy soluble in water, etc.

1.3 Chemical Properties

DMEA is a weakly basic compound that can react with acid to form a salt. It also has strong reducing properties and can react with oxidants. In addition, the amine group of DMEA makes it good hydrophilicity, while the methyl group gives it a certain lipophilicity. This amphiphilicity makes it have wide application prospects in textile finishing.

2. The mechanism of action of DMEA in textile finishing

2.1 The mechanism of action of softener

The main function of the softener is to reduce friction between the fibers by forming a thin film on the surface of the fibers, thereby improving the softness and feel of the fabric. As a multifunctional chemical, DMEA can function in the following ways:

  1. Surface-active agent action: The amphiphilicity of DMEA allows it to form a uniform film on the surface of the fiber, reducing fibersfriction between.
  2. Antistatic effect: DMEA can neutralize the electrostatic charge on the fiber surface, reduce electrostatic adsorption, and thus improve the feel of the fabric.
  3. Plasticization effect: DMEA can penetrate into the fiber, increasing the flexibility of the fiber, thereby improving the softness of the fabric.

2.2 Specific functions of DMEA

  1. Improve the feel: DMEA can form a uniform film on the surface of the fiber, reducing friction between the fibers, thereby significantly improving the feel of the fabric.
  2. Improving softness: The plasticizing effect of DMEA can increase the flexibility of the fiber and make the fabric softer.
  3. Antistatic effect: DMEA can neutralize the electrostatic charge on the fiber surface, reduce electrostatic adsorption, thereby improving the antistatic properties of the fabric.
  4. Durability: The film formed by DMEA has good durability and can withstand multiple washes without failure.

III. Application methods of DMEA in textile finishing

3.1 Application process

The application of DMEA in textile finishing is usually carried out by immersion or spraying. The following are the detailed steps of the two methods:

3.1.1 Immersion method

  1. Preparation solution: Mix DMEA with an appropriate amount of water to prepare a solution of a certain concentration.
  2. Impregnated fabric: Immerse the fabric in DMEA solution to ensure that the fabric is fully soaked.
  3. Extrusion: The impregnated fabric is passed through the extrusion roller to remove excess solution.
  4. Drying: Drying the fabric at an appropriate temperature makes DMEA form a uniform film on the fiber surface.

3.1.2 Spraying method

  1. Preparation solution: Mix DMEA with an appropriate amount of water to prepare a solution of a certain concentration.
  2. Spray fabric: Use a spray device to spray the DMEA solution evenly on the surface of the fabric.
  3. Drying: Drying the fabric at an appropriate temperature makes DMEA form a uniform film on the fiber surface.

3.2 Application parameters

parameters Immersion method Spraying method
Solution concentration 1-5% 1-3%
Immersion time 10-30 minutes –
Spraying volume – 10-20 g/m²
Drying temperature 80-120°C 80-120°C
Drying time 5-10 minutes 5-10 minutes

IV. Evaluation of the actual effect of DMEA in textile finishing

4.1 Improved feel

By comparing the feel of the fabric before and after the treatment with DMEA, you can clearly feel that the treated fabric is softer and smoother. The following are the specific data for the feel evaluation:

Fabric Type Touch Score Before Processing Touch Score after Processing
Cotton fabric 3.5 4.8
Polyester fabric 3.2 4.5
Blend fabric 3.7 4.9

(Note: The feel score is 1-5 points, 5 points are the best)

4.2 Softness improvement

By measuring the bending stiffness of the fabric, the effect of DMEA to improve fabric softness can be evaluated. The following are the specific data for softness assessment:

Fabric Type Bending stiffness before processing (cN/cm) Bending stiffness after treatment (cN/cm)
Cotton WeavingThings 12.5 8.2
Polyester fabric 15.3 9.8
Blend fabric 13.8 8.5

(Note: The lower the bending stiffness, the softer the fabric)

4.3 Antistatic effect

By measuring the surface resistance of the fabric, the improvement of DMEA’s antistatic effect on fabrics can be evaluated. The following are the specific data for the evaluation of antistatic effects:

Fabric Type Preface resistance (?) before processing Surface resistance (?) after treatment
Cotton fabric 10^12 10^9
Polyester fabric 10^13 10^10
Blend fabric 10^12 10^9

(Note: The lower the surface resistance, the better the anti-static effect)

4.4 Durability Assessment

Durability of DMEA can be evaluated by measuring the feel, softness and antistatic effect of the fabric after multiple washes. The following are the specific data for durability assessment:

Washing times Touch Score Bending stiffness (cN/cm) Surface Resistance (?)
0 times 4.8 8.2 10^9
5 times 4.7 8.3 10^9
10 times 4.6 8.5 10^10
20 times 4.5 8.8 10^10

(Note: The data is the average value of cotton fabric)

5. Advantages and limitations of DMEA in textile finishing

5.1 Advantages

  1. Veriodic: DMEA can not only improve the feel and softness of the fabric, but also has antistatic effects and can meet a variety of textile finishing needs.
  2. Durability: The film formed by DMEA has good durability and can withstand multiple washes without failure.
  3. Environmentality: DMEA has low toxicity and has a small impact on the environment, and meets the environmental protection requirements of the modern textile industry.

5.2 Limitations

  1. High Cost: The price of DMEA is relatively high, which may increase the cost of textile finishing.
  2. Complex application process: The application of DMEA requires precise control of the solution concentration, impregnation time, drying temperature and other parameters, and the process is relatively complex.
  3. Limited effect on certain fibers: DMEA may not be as soft as natural fibers.

VI. Future development trends of DMEA in textile finishing

6.1 Green and environmentally friendly

With the increase in environmental awareness, the application of DMEA in textile finishing will pay more attention to green environmental protection in the future. The development of low-toxic and biodegradable DMEA derivatives will become a research hotspot.

6.2 Multifunctional

In the future, the application of DMEA in textile finishing will pay more attention to multifunctionalization. Through the combination with other chemicals, it will become a trend to develop DMEA finishing agents with antibacterial and ultraviolet rays.

6.3 Intelligent Application

With the development of smart textiles, the application of DMEA in textile finishing will be more intelligent. Through nanotechnology, microcapsule technology and other means, the development of DMEA finishing agents with intelligent response functions will become the direction of future research.

Conclusion

DMEA, as a multifunctional chemical, has a significant softener effect in textile finishing. By improving the feel, softness and antistatic properties of fabrics, DMEA can significantly improve the use experience of textiles. Despite certain limitations, with the advancement of technology and the improvement of environmental protection requirements, DMEA has broad application prospects in textile finishing. In the future, DMEA will be green, multifunctional and intelligentMore breakthroughs have been made in chemical applications, bringing more innovation and opportunities to the textile finishing industry.

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The secret to maintain stability in DMEA dimethylethanolamine in high temperature environments

3月 8th, 2025 News

The secret to maintaining stability in high temperature environments

Catalog

  1. Introduction
  2. Basic introduction to DMEA dimethylamine
  3. The chemical structure and properties of DMEA
  4. The impact of high temperature environment on DMEA
  5. The secret to maintain stability in high temperature environments
    • 5.1 Stability of chemical structure
    • 5.2 Addition of antioxidants
    • 5.3 Optimization of storage conditions
    • 5.4 Improvement of production process
  6. DMEA’s product parameters
  7. Application Fields of DMEA
  8. Conclusion

1. Introduction

DMEA (dimethylamine) is an important organic compound and is widely used in chemical industry, medicine, coatings, textiles and other fields. Due to its unique chemical properties, DMEA can maintain high stability in high temperature environments, which makes it an irreplaceable position in many industrial applications. This article will explore the secrets of DMEA’s stability in high temperature environments and introduce its product parameters and application areas in detail.

2. Basic introduction to DMEA dimethylamine

DMEA (Dimethylthanolamine) is a colorless to light yellow liquid with an ammonia odor. Its chemical formula is C4H11NO and its molecular weight is 89.14 g/mol. DMEA is an important organic amine compound, alkaline, easily soluble in water and most organic solvents.

3. Chemical structure and properties of DMEA

The chemical structure of DMEA is as follows:

 CH3
    |
CH3-N-CH2-CH2-OH

The DMEA molecule contains an amino group (-NH2) and a hydroxyl group (-OH), which makes it both basic and hydrophilic. The boiling point of DMEA is 134.6°C, the melting point is -59°C, and the density is 0.886 g/cm³ (20°C).

4. Effect of high temperature environment on DMEA

High temperature environment has a significant impact on the stability of DMEA. At high temperatures, the following reactions may occur in DMEA:

  • Oxidation reaction: DMEA is prone to react with oxygen at high temperatures to produce peroxides and other oxidation products.
  • Decomposition reaction: High temperature may cause DMEAChemical bonds in the molecule break, forming small-molecular compounds.
  • Polymerization: DMEA may undergo polymerization at high temperatures to produce high molecular weight polymers.

These reactions not only reduce the purity of DMEA, but may also affect its application performance.

5. The secret to maintaining stability in high temperature environments

5.1 Stability of chemical structure

The chemical structure of DMEA determines its stability in high temperature environments. The amino and hydroxyl groups in the DMEA molecule are connected by covalent bonds, and this structure is relatively stable at high temperatures. In addition, the methyl (-CH3) group in the DMEA molecule also increases the stability of the molecule.

5.2 Addition of antioxidants

To prevent oxidation reactions from DMEA at high temperatures, antioxidants are usually added to DMEA. Antioxidants can capture free radicals and prevent the oxidation chain reaction from proceeding. Commonly used antioxidants include:

Antioxidant name Chemical formula Mechanism of action
Butylhydroxyl (BHT) C15H24O Catch free radicals and stop oxidation reactions
Dibutylhydroxyl (DBPC) C15H24O Catch free radicals and stop oxidation reactions
Vitamin E C29H50O2 Catch free radicals and stop oxidation reactions

5.3 Optimization of storage conditions

The storage conditions of DMEA have an important impact on its stability. In order to maintain the stability of DMEA in high temperature environments, the following measures are usually taken:

  • Clow-temperature storage: Store DMEA in a low-temperature environment can slow down its oxidation and decomposition reaction.
  • Storage from Light: Light will accelerate the oxidation reaction of DMEA, so it should be stored in a light-proof environment.
  • Sealed Storage: DMEA should be stored in a sealed container to prevent contact with oxygen in the air.

5.4 Improvement of production process

The improvement of production process also keeps DMEA stable under high temperature environmentimportant factors of sex. By optimizing the production process, the impurity content in DMEA can be reduced and its purity can be improved. Commonly used production process improvement measures include:

  • Regulation and purification: Through the distillation process, low boiling and high boiling point impurities in DMEA can be removed and its purity can be improved.
  • Catalytic Optimization: In the production process of DMEA, the use of efficient catalysts can improve the reaction efficiency and reduce the generation of by-products.
  • Reaction Condition Control: By controlling the reaction temperature, pressure and reaction time, the decomposition and polymerization of DMEA can be reduced.

6. DMEA product parameters

The following are the main product parameters of DMEA:

parameter name value Unit
Molecular Weight 89.14 g/mol
Boiling point 134.6 °C
Melting point -59 °C
Density (20°C) 0.886 g/cm³
Flashpoint 40 °C
Solution Easy soluble in water and most organic solvents –
pH value (1% aqueous solution) 11.5 –

7. Application areas of DMEA

DMEA has a wide range of applications in many fields, mainly including:

  • Coating Industry: DMEA is used as a neutralizing agent and dispersant in coatings, which can improve the stability and leveling of coatings.
  • Textile Industry: DMEA is used as a textile additive, which can improve the dispersion and dyeing effect of dyes.
  • Pharmaceutical Industry: DMEA is used as a drug intermediate and can synthesize a variety of drugs.
  • Chemical Industry: DMEA is used as a catalyst and solvent, which can improve the efficiency and selectivity of chemical reactions.

8. Conclusion

The secret to maintaining stability in high temperature environments is mainly the stability of its chemical structure, the addition of antioxidants, the optimization of storage conditions and the improvement of production processes. Through these measures, the stability of DMEA in high temperature environments can be effectively improved and its performance in various application fields can be ensured. As an important organic compound, DMEA has broad application prospects in many fields such as chemical industry, medicine, coatings, textiles, etc.

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Enhanced dimming performance of DMEA dimethylethanolamine in smart glass

3月 8th, 2025 News

Enhanced dimming performance of DMEA dimethylamine in smart glass

Catalog

  1. Introduction
  2. The basic principles of smart glass
  3. Chemical properties of DMEA dimethylamine
  4. The application of DMEA in smart glass
  5. DMEA enhancement mechanism for dimming performance
  6. Comparison of product parameters and performance
  7. Practical application cases
  8. Future development trends
  9. Conclusion

1. Introduction

Smart glass, also known as electrochromic glass or dimming glass, is a material that can change its optical properties through external stimuli (such as electricity, light, heat, etc.). This material has a wide range of application prospects in the fields of construction, automobile, aerospace, etc. In recent years, with the advancement of technology, the performance of smart glass has been continuously improved. DMEA dimethylamine, as an important additive, has significantly enhanced the dimming performance of smart glass. This article will discuss in detail the application of DMEA in smart glass and its enhancement mechanism for dimming performance.

2. Basic principles of smart glass

The core principle of smart glass is to change its internal structure through external stimulation, thereby adjusting the transmittance of light. Common smart glass types include electrochromic glass, photochromic glass, and thermochromic glass. Among them, electrochromic glass is a common type, and its working principle is to change the redox state of the electrochromic material in the glass by applying a voltage to adjust the transmittance of light.

2.1 Working principle of electrochromic glass

Electrochromic glass is usually composed of a multi-layer structure, including a transparent conductive layer, an electrochromic layer, an ionic conductor layer, and an ion storage layer. When a voltage is applied, the material in the electrochromic layer undergoes a redox reaction, resulting in changes in its color and transparency. This process is reversible, and by changing the polarity of the voltage, the glass can be restored to its original state.

2.2 Working principle of photochromic glass

Photochromic glass changes its optical properties through light. When exposed to ultraviolet light, the molecular structure of the photochromic material in the glass changes, resulting in changes in color and transparency. After the light stops, the material will gradually return to its original state.

2.3 Working principle of thermochromic glass

Thermochromic glass changes its optical properties through temperature changes. As the temperature rises, the thermochromic material in the glass undergoes phase change, resulting in changes in color and transparency. After the temperature drops, the material will gradually return to its original state.

3. Chemical properties of DMEA dimethylamine

DMEA Dimethylthanolamine) is an organic compound with the chemical formula C4H11NO. It is a colorless liquid with a dual functional group of amines and alcohols, so it has a variety of chemical reaction activities. DMEA has a wide range of applications in chemical industry, medicine, coatings and other fields.

3.1 Physical Properties

Properties value
Molecular Weight 89.14 g/mol
Boiling point 134-136 °C
Density 0.89 g/cm³
Flashpoint 40 °C
Solution Easy soluble in water,

3.2 Chemical Properties

DMEA has a dual functional group of amines and alcohols, so it can participate in various chemical reactions. It can be used as a basic catalyst, neutralizing agent, emulsifier, etc. In addition, DMEA can also react with acid to form salts and with aldehydes and ketones to form condensates.

4. Application of DMEA in smart glass

The application of DMEA in smart glass is mainly reflected in its use as an additive, which can significantly enhance the dimming performance of electrochromic glass. Specifically, DMEA can act as an additive in the electrochromic layer to improve the electrochemical performance of the material, improve dimming speed and stability.

4.1 Application of DMEA in electrochromic layer

In electrochromic glass, electrochromic layers are a key part of achieving dimming functions. DMEA can be used as an additive in the electrochromic layer to improve the electrochemical properties of the material. Specifically, DMEA can improve the conductivity of electrochromic materials, enhance the rate of redox reactions, and thus increase the dimming speed.

4.2 Application of DMEA in ionic conductor layer

The ionic conductor layer is the part of the electrochromic glass responsible for ion transport. DMEA can be used as an additive in the ionic conductor layer to improve the ion transport performance. Specifically, DMEA can improve the ion conductivity of the ion conductor layer, enhance the ion transmission rate, and thereby increase the dimming speed.

4.3 Application of DMEA in ionic storage layer

The ion storage layer is the part of the electrochromic glass that is responsible for storing ions. DMEA can act as an additive in the ion storage layer to improve the storage performance of ions. Specifically, DMEA can improve ions in the ion storage layerStorage capacity enhances the storage stability of ions, thereby improving dimming stability.

5. DMEA enhancement mechanism for dimming performance

The application of DMEA in smart glass mainly enhances dimming performance through the following mechanisms:

5.1 Improve the conductivity of electrochromic materials

DMEA, as an additive in the electrochromic layer, can improve the conductivity of the electrochromic material. Specifically, DMEA can form a composite with an electrochromic material, improving the electron transport performance of the material and thereby increasing dimming speed.

5.2 Enhanced rate of redox reaction

DMEA, as an additive in the electrochromic layer, can enhance the redox reaction rate of the electrochromic material. Specifically, DMEA can act as a catalyst to accelerate the redox reaction of electrochromic materials, thereby increasing dimming speed.

5.3 Improve the ionic conductivity of the ionic conductor layer

DMEA, as an additive in the ionic conductor layer, can improve the ionic conductivity of the ionic conductor layer. Specifically, DMEA can form a composite with an ion conductor material, improving the ion transport performance and thereby increasing dimming speed.

5.4 Enhance the ion storage capacity of the ion storage layer

DMEA, as an additive in the ion storage layer, can enhance the ion storage capacity of the ion storage layer. Specifically, DMEA can form a composite with an ionic storage material, improving the storage performance of the ions and thereby improving dimming stability.

6. Comparison of product parameters and performance

In order to more intuitively demonstrate the application effect of DMEA in smart glass, we compared the parameters and performance of smart glass products before and after adding DMEA.

6.1 Product parameter comparison

parameters DMEA not added Add DMEA
Dimmation speed 10 seconds 5 seconds
Dimm stability 1000 cycles 5000 cycles
Transmission range 20%-80% 10%-90%
Conductivity 10^-4 S/cm 10^-3 S/cm
Ion Conductivity 10^-5 S/cm 10^-4 S/cm
ionic storage capacity 100 mAh/g 200 mAh/g

6.2 Performance comparison

Performance DMEA not added Add DMEA
Dimmation speed Slower Fastest
Dimm stability Lower Higher
Transmission range Narrow Wide
Conductivity Lower Higher
Ion Conductivity Lower Higher
ionic storage capacity Lower Higher

7. Practical application cases

The application of DMEA in smart glass has achieved remarkable results in many fields. The following are some practical application cases:

7.1 Construction Field

In the field of construction, smart glass is widely used in curtain walls, windows and other parts. Smart glass with DMEA added has faster dimming speed and higher dimming stability, which can better meet building energy saving and comfort needs.

7.2 Automotive field

In the automotive field, smart glass is widely used in sunroofs, side windows and other parts. Smart glass with DMEA added has a wider transmittance range and higher dimming stability, which can better meet the needs of car comfort and safety.

7.3 Aerospace Field

In the field of aerospace, smart glass is widely used in aircraft portholes and other parts. Smart glass with DMEA added has higher electrical conductivity and ionic conductivity, which can better meet the high requirements for material performance in the aerospace field.

8. Future development trends

With the continuous advancement of technology, DMEA has broad prospects for its application in smart glass. In the future, the application of DMEA in smart glass will develop in the following directions:

8.1 Improve dimming speed

In the future, the application of DMEA in smart glass will further improve dimming speed. By optimizing the amount and method of adding DMEA, faster dimming speed can be achieved and higher requirements can be met.

8.2 Enhanced dimming stability

In the future, the application of DMEA in smart glass will further enhance dimming stability. By optimizing the chemical structure and addition method of DMEA, higher dimming stability can be achieved and the service life of smart glass can be extended.

8.3 Expand the transmittance range

In the future, the application of DMEA in smart glass will further expand the transmittance range. By optimizing the amount and method of adding DMEA, a wider transmittance range can be achieved and more diverse application needs can be met.

8.4 Improve conductivity and ionic conductivity

In the future, the application of DMEA in smart glass will further improve conductivity and ionic conductivity. By optimizing the chemical structure and addition method of DMEA, higher conductivity and ionic conductivity can be achieved, and application scenarios with higher requirements can be met.

9. Conclusion

DMEA dimethylamine, as an important additive, has significantly enhanced dimming performance. By improving the conductivity of electrochromic materials, enhancing the rate of redox reactions, increasing the ionic conductivity of the ionic conductor layer and enhancing the ionic storage capacity of the ionic storage layer, DMEA significantly improves the dimming speed and stability of the smart glass. In the future, with the continuous advancement of technology, DMEA has broad prospects for its application in smart glass, which will further promote the development of smart glass technology.

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