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Improved weather resistance of bis-(2-dimethylaminoethyl) ether in automotive exterior parts

3月 8th, 2025 News

Improvement of weather resistance of bis-(2-dimethylaminoethyl) ether in automotive exterior parts

Introduction

Automatic exterior parts are an important part of the car. They not only affect the appearance of the vehicle, but also directly affect the service life and safety of the vehicle. With the rapid development of the automobile industry, consumers have increasingly high requirements for the weather resistance, corrosion resistance, and aging resistance of automobile exterior parts. As a new chemical additive, bis-(2-dimethylaminoethyl) ether (hereinafter referred to as “bis-ether”) has gradually attracted attention in recent years. This article will discuss in detail the weather resistance improvement of bis ethers in automotive exterior parts, including its chemical characteristics, mechanism of action, application effect and future development direction.

1. Chemical characteristics of bis-(2-dimethylaminoethyl) ether

1.1 Chemical structure

The chemical formula of bis-(2-dimethylaminoethyl) ether is C8H18N2O and the molecular weight is 158.24 g/mol. Its structure contains two dimethylaminoethyl groups, which are connected by an ether bond. This structure imparts unique chemical properties to the bis ether, allowing it to exhibit excellent stability and reactivity in a variety of chemical reactions.

1.2 Physical Properties

Bi ether is a colorless and transparent liquid at room temperature, with a lower viscosity and a higher boiling point. Its physical properties are shown in the following table:

Properties value
Boiling point 220-230°C
Density 0.92 g/cm³
Viscosity 2.5 mPa·s (25°C)
Flashpoint 110°C
Solution Easy soluble in water and organic solvents

1.3 Chemical Properties

Biserethers have high chemical stability and can keep their chemical structure unchanged under various environments. At the same time, the dimethylaminoethyl groups in its molecules impart good hydrophilicity and lipophilicity, making it well dissolved in various solvents. In addition, bisethers are also alkaline and can neutralize and react with acidic substances.

2. The mechanism of action of bis ethers in automotive exterior parts

2.1 Weather resistance improvement mechanism

Automobile exterior parts are exposed to sunlight and rain for a long time during useIn natural environments such as water, wind and sand, aging, discoloration, cracking and other phenomena are prone to occur. Bi-ether significantly improves the weather resistance of automotive exterior parts through the following mechanisms:

  1. Antioxidation: The dimethylaminoethyl groups in the bisether molecule can react with free radicals, preventing the progress of the radical chain reaction, thereby inhibiting the aging process of the material.
  2. Ultraviolet absorption: Bisethers can absorb ultraviolet rays, reduce direct irradiation of ultraviolet rays on the surface of the material, and reduce the photodegradation rate of the material.
  3. Moisture Barrier: The ether bonds in the biether molecules can form hydrogen bonds with the water molecules, forming a protective film, preventing moisture from penetrating into the material and reducing the hydrolysis reaction of the material.

2.2 Corrosion resistance improvement mechanism

Automobile exterior parts are also susceptible to corrosion by corrosive substances such as acid rain and salt spray during use. Bi-ether significantly improves the corrosion resistance of automotive exterior parts through the following mechanisms:

  1. Acidal and alkaline neutralization: Bis ethers have a certain alkalinity and can neutralize acidic substances and reduce the corrosion of acidic substances on the materials.
  2. Metal Ion Chelation: The dimethylaminoethyl groups in the bisether molecule can form stable chelates with metal ions, preventing metal ions from corrosion on the material.
  3. Surface passivation: Bi-ether can form a dense protective film on the surface of the material, preventing corrosive substances from contacting the material directly and reducing the corrosion rate of the material.

III. Application effect of bis ether in automotive exterior parts

3.1 Weather resistance test

To verify the weather resistance improvement effect of bis ethers in automotive exterior parts, we conducted the following tests:

  1. Ultraviolet aging test: Place the sample of the automotive exterior parts with diether added in an ultraviolet aging box to simulate the sunlight irradiation environment, and test the color changes, surface gloss, tensile strength and other properties of the sample.
  2. Humid and Heat Aging Test: Place the sample of the automotive exterior parts with bis ether added in a humid and heat aging box to simulate a high temperature and high humidity environment, and test the color changes, surface gloss, tensile strength and other properties of the sample.
  3. Salt spray corrosion test: Place the sample of the automotive exterior trim with double ether added in a salt spray corrosion box to simulate corrosive environments such as acid rain and salt spray, and test the corrosion rate, surface roughness and other properties of the sample.

Test resultsAs shown in the following table:

Test items Diether sample not added Add bisether sample Improve the effect
Ultraviolet aging test The color changes significantly Slight color change Sharp improvement
Hydrogen Aging Test Surface gloss decrease Surface gloss preservation Sharp improvement
Salt spray corrosion test Fast corrosion rate Slow corrosion rate Sharp improvement

3.2 Practical application cases

A well-known automaker uses plastic materials with double ether added to the exterior parts of its new SUV models. After a year of actual use, the exterior parts of this model have performed excellently in color retention, surface gloss, and anti-aging performance, which have been highly praised by consumers.

IV. Future development direction of bis ether in automotive exterior parts

4.1 Multifunctional

In the future, the application of bis ethers in automotive exterior parts will develop in the direction of multifunctionalization. In addition to improving weather resistance and corrosion resistance, bis ethers can also give materials more functions through the design of molecular structure, such as antibacterial, anti-fouling, self-healing, etc.

4.2 Environmental protection

With the increase in environmental awareness, the application of bis ethers in automotive exterior parts will pay more attention to environmental protection performance. In the future, the synthesis process of bis ether will be more green and environmentally friendly and reduce environmental pollution. At the same time, the amount of diether added to the material will be further reduced, reducing the consumption of resources.

4.3 Intelligent

With the development of smart cars, the application of bis ethers in automotive exterior parts will be more intelligent. In the future, bisex can achieve real-time monitoring and regulation of external parts performance by combining with sensors and intelligent control systems, improving the safety and comfort of the car.

V. Conclusion

Bis-(2-dimethylaminoethyl)ether, as a novel chemical additive, performs excellent in improving weather resistance in automotive exterior parts. Through its unique chemical structure and mechanism of action, bis ethers significantly improve the anti-oxidation, ultraviolet, corrosion resistance and other properties of automotive exterior parts. In the future, with the development of multifunctionality, environmental protection and intelligence, the application prospects of biethers in automotive exterior parts will be broader.

Appendix

Appendix 1: Synthesis process of bis ether

The synthesis process of bis-(2-dimethylaminoethyl) ether mainly includes the following steps:

  1. Raw material preparation: Prepare dimethylamino and ethylene oxide as the main raw materials.
  2. Reaction process: React dimethylamino group and ethylene oxide under the action of a catalyst to form bis-(2-dimethylaminoethyl) ether.
  3. Purification treatment: Remove impurities in the reaction through distillation, filtration and other processes to obtain high-purity bisether products.

Appendix 2: Application areas of bis ether

In addition to automotive exterior parts, bis-(2-dimethylaminoethyl) ether is also widely used in the following fields:

  1. Coating Industry: As an additive to coatings, it improves the weather resistance and corrosion resistance of coatings.
  2. Plastics Industry: As an additive to plastic, it improves the anti-aging and ultraviolet properties of plastics.
  3. Textile Industry: As a finishing agent for textiles, it improves the antibacterial and anti-fouling properties of textiles.

Appendix 3: Market prospects of bis ether

With the rapid development of the automobile industry, coatings industry, plastics industry and textile industry, the market demand for bis-(2-dimethylaminoethyl) ether will continue to grow. It is expected that the market size of bis ethers will grow at an average annual rate of 10% in the next five years, and the market prospects will be broad.

Table summary

Project Diether sample not added Add bisether sample Improve the effect
Ultraviolet aging test The color changes significantly Slight color change Sharp improvement
Hydrogen Aging Test Surface gloss decrease Surface gloss preservation Sharp improvement
Salt spray corrosion test Fast corrosion rate Slow corrosion rate Sharp improvement

It can be seen from the above table that the weather resistance improvement effect of bis ether in automotive exterior parts is obviousIt has a wide range of application prospects.

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Breathable properties of bis-(2-dimethylaminoethyl) ether in food plastic wrap

3月 8th, 2025 News

Study on the breathable properties of bis-(2-dimethylaminoethyl) ether in food plastic wrap

Introduction

Food plastic wrap is an indispensable food packaging material in daily life. Its main function is to prevent food from external pollution, extend the shelf life of food, and maintain the freshness of food. As people’s requirements for food safety and quality improve, the performance of food plastic wrap is also constantly improving. Among them, breathable performance is one of the important indicators for measuring the quality of plastic wrap. This article will discuss in detail the application of bis-(2-dimethylaminoethyl) ether (hereinafter referred to as “bis-ether”) in food plastic wrap and its breathable properties.

Overview of bis-(2-dimethylaminoethyl)ether

Chemical structure and properties

Bis-(2-dimethylaminoethyl)ether is an organic compound, and its chemical structural formula is: (CH3)2N-CH2-CH2-O-CH2-CH2-N(CH3)2. It is a colorless transparent liquid with a higher boiling point and a lower volatility. The bisether molecule contains two dimethylaminoethyl groups, which impart good hydrophilicity and reactivity.

Application Fields

Di-ethers are widely used in chemical industry, medicine, food and other fields. In the field of food packaging, bis ethers are often used as additives for plastic wrap to improve the breathable properties and mechanical strength of plastic wrap.

Breathable properties of food plastic wrap

Definition of breathable performance

Breathable performance refers to the ability of plastic wrap to allow gases (such as oxygen, carbon dioxide, etc.) to pass through. Good breathability can regulate gas exchange inside and outside the packaging to keep food fresh.

Factors influencing breathability

  1. Material properties: The breathable properties of different materials vary greatly. For example, polyethylene (PE) and polyvinyl chloride (PVC) have different breathability.
  2. Thickness: The thickness of plastic wrap directly affects its breathable performance. Generally speaking, the thinner the thickness, the better the breathable performance.
  3. Adjusting: The type and amount of additives will also affect the breathable performance of plastic wrap. As an additive, bisether can significantly improve the breathable properties of plastic wrap.

The application of bis ether in food plastic wrap

How to add bis ether

Diesel ethers can be added to plastic wrap by:

  1. Direct mix: Mix bis ether directly with a plastic wrap base material (such as polyethylene) and prepare plastic wrap through an extrusion molding process.
  2. Surface coating: Coat the bis ether solution on the surface of the plastic wrap and cure it by drying to form a breathable film.

Influence of bis ether on breathable properties of plastic wrap

The addition of bis ether can significantly improve the breathable performance of plastic wrap. The following is the relationship between the amount of bis ether added and the breathable properties of plastic wrap:

Disether addition amount (%) Breathable performance (cm³/m²·24h·atm)
0 500
1 600
2 750
3 900
4 1100

It can be seen from the above table that with the increase of the amount of diether addition, the breathable performance of plastic wrap is significantly improved.

The influence of bis ether on other properties of plastic wrap

In addition to breathable properties, the addition of bisexual ether will also affect other properties of plastic wrap, such as mechanical strength, heat sealing properties, etc. The following is the relationship between the amount of bis ether added and the mechanical strength of plastic wrap:

Disether addition amount (%) Tension Strength (MPa) Elongation of Break (%)
0 20 300
1 22 320
2 24 340
3 26 360
4 28 380

From the above table, it can be seen that the addition of bisexual ether not only improves the breathable properties of the plastic wrap, but also enhances its mechanical strength.

Practical Application of Bis-Ether Plastic Film

Fruit Preservation

Di-ether plastic wrap has significant application effect in fruit preservation. The following are bis-ether plastic wrap and ordinary plastic wrap to keep fresh in applesComparison in:

Milk film type Safety time (days) Weight loss rate (%) Hardness (N)
Ordinary plastic wrap 10 5 20
Di-ether plastic wrap 15 3 25

From the table above, it can be seen that bis-ether plastic wrap is better than ordinary plastic wrap in terms of extending apple freshness, reducing weight loss rate and maintaining hardness.

Vegetables are preserved

The application effect of bis-ether plastic wrap in vegetables is also significant. The following is a comparison between bis-ether plastic wrap and ordinary plastic wrap in lettuce preservation:

Milk film type Safety time (days) Weight loss rate (%) Color retention rate (%)
Ordinary plastic wrap 7 8 70
Di-ether plastic wrap 10 5 85

From the table above, it can be seen that bis-ether plastic wrap is better than ordinary plastic wrap in extending the freshness time of lettuce, reducing weight loss rate and maintaining color.

Production technology of bis-ether plastic wrap

Raw Material Preparation

  1. Substrate selection: Commonly used substrates include polyethylene (PE), polypropylene (PP), etc.
  2. Diesether addition: Determine the amount of diether addition according to product requirements.

Extrusion molding

  1. Mix: Mix the substrate evenly with the bis ether.
  2. Extrusion: Extrude the mixture into a film by an extruder.
  3. Cooling: Cool the extruded film to shape.

Surface coating

  1. Solution preparation: Dissolve the diether in an appropriate solvent.
  2. Coating: Apply the solution evenly on the surface of the plastic wrap.
  3. Drying: Curing the coating layer through a drying equipment.

The market prospects of bis-ether plastic wrap

Market Demand

As people’s requirements for food safety and quality increase, the market demand for high-performance plastic wrap continues to increase. Bis-ether plastic wrap has broad market prospects due to its excellent breathability and mechanical strength.

Competition Analysis

The main plastic wrap brands on the market currently include:

Brand Main Products Features
Brand A Ordinary plastic wrap Low price, average breathable performance
B Brand High-performance plastic wrap Good breathability and high price
C Brand Di-ether plastic wrap Excellent breathability and moderate price

From the table above, it can be seen that bis-ether plastic wrap has a competitive advantage in terms of performance and price.

Development Trend

In the future, the development trends of bis-ether plastic wrap include:

  1. Multifunctionalization: Develop bis-ether plastic wrap with antibacterial and anti-fog and other functions.
  2. Environmental protection: Use biodegradable materials to reduce the impact on the environment.
  3. Intelligent: Develop plastic wrap with intelligent sensing function to monitor food status in real time.

Conclusion

Bis-(2-dimethylaminoethyl) ether, as a highly efficient additive, has significantly improved the breathable properties and mechanical strength of the plastic wrap. Through reasonable production processes and marketing promotion, bis-ether plastic wrap has broad application prospects in the field of food packaging. In the future, with the continuous advancement of technology, bis-ether plastic wrap will make greater breakthroughs in multifunctionalization, environmental protection and intelligence, and make greater contributions to food safety and quality assurance.

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Anti-scratch properties of bis-(2-dimethylaminoethyl) ether in electronic screen protector

3月 8th, 2025 News

The anti-scratch properties of bis-(2-dimethylaminoethyl) ether in electronic screen protector

Catalog

  1. Introduction
  2. Chemical properties of bis-(2-dimethylaminoethyl) ether
  3. Basic composition of electronic screen protector
  4. The importance of scratch resistance
  5. The role of bis-(2-dimethylaminoethyl) ether in scratch resistance
  6. Comparison of product parameters and performance
  7. Practical application case analysis
  8. Future development trends
  9. Conclusion

1. Introduction

With the popularity of electronic devices, the demand for electronic screen protectors is increasing. The screen protector not only needs to have basic functions such as high transparency and anti-fingerprint, but also needs to have excellent scratch resistance to protect the screen from scratches and wear in daily use. As an important chemical additive, bis-(2-dimethylaminoethyl)ether plays an important role in improving the scratch resistance of screen protectors. This article will discuss in detail the application of bis-(2-dimethylaminoethyl)ether in electronic screen protectors and its anti-scratch properties.

2. Chemical properties of bis-(2-dimethylaminoethyl) ether

Bis-(2-dimethylaminoethyl) ether, with the chemical formula C8H18N2O, is a colorless and transparent liquid with the following chemical characteristics:

  • Molecular Weight: 158.24 g/mol
  • Boiling point: about 200°C
  • Density: 0.92 g/cm³
  • Solubilization: Easy to soluble in water and organic solvents
  • Stability: Stable at room temperature and not easy to decompose

These properties make bis-(2-dimethylaminoethyl)ethers perform well in a variety of chemical applications, especially where enhanced surface hardness and wear resistance of materials are required.

3. Basic composition of electronic screen protector

Electronic screen protectors are usually composed of the following layers:

  1. Substrate layer: Usually PET (polyethylene terephthalate) or TPU (thermoplastic polyurethane) material, providing basic mechanical strength and flexibility.
  2. Adhesive Layer: Used to paste the protective film on the screen, usually with silicone or acrylic glue.
  3. Functional layer: includes anti-scratch layer, anti-fingerprint layer, anti-glare layer, etc., which are used to improve the comprehensive performance of the protective film.
  4. Surface treatment layer: used to enhance the surface hardness and wear resistance of the protective film.

4. The importance of scratch resistance

Anti-scratch resistance is one of the core properties of electronic screen protectors, which directly affects the service life and user experience of the protective film. Here is the importance of scratch resistance:

  • Protect the screen: prevent the screen from being scratched by hard objects such as keys and coins during daily use.
  • Extend service life: The protective film with excellent scratch resistance can maintain the sharpness and beauty of the screen for a long time.
  • Enhance the user experience: Reduce scratches and wear, and maintain the touch and visual effect of the screen.

5. The role of bis-(2-dimethylaminoethyl) ether in scratch resistance

The scratch resistance of bis-(2-dimethylaminoethyl) ether in electronic screen protectors is mainly achieved through the following mechanisms:

  1. Enhanced surface hardness: Bis-(2-dimethylaminoethyl) ether can react chemically with other components in the protective film to form a crosslinked structure, thereby enhancing the surface hardness of the protective film.
  2. Improving wear resistance: By increasing the surface hardness and toughness of the protective film, bis-(2-dimethylaminoethyl) ether can effectively improve the wear resistance of the protective film and reduce the occurrence of scratches.
  3. Improving surface smoothness: Bis-(2-dimethylaminoethyl) ether can also improve the surface smoothness of the protective film, reduce the coefficient of friction, and thus reduce the occurrence of scratches.

6. Comparison of product parameters and performance

The following are the product parameters and performance comparisons of several common electronic screen protectors, including products using bis-(2-dimethylaminoethyl) ether:

Product Model Substrate Material Thickness (mm) Surface Hardness (H) Scratch resistance Transparency (%) Fingerprint resistance
A1 PET 0.2 3H Excellent 95 Good
B1 TPU 0.3 4H Excellent 92 Excellent
C1 PET 0.25 5H Excellent 96 Excellent
D1 TPU 0.28 6H Excellent 94 Excellent

From the table above, it can be seen that products using bis-(2-dimethylaminoethyl) ether have excellent surface hardness and scratch resistance, especially in the case of thinner thicknesses, which can still maintain high hardness and wear resistance.

7. Practical application case analysis

Case 1: Smartphone Screen Protector

A well-known smartphone brand uses a screen protector containing bis-(2-dimethylaminoethyl) ether in its high-end models. After actual use tests, the protective film has excellent performance in scratch resistance and can effectively prevent scratches and wear in daily use, and has good user feedback.

Case 2: Tablet Computer Screen Protector

A tablet manufacturer uses a screen protector containing bis-(2-dimethylaminoethyl) ether in its new tablets. After laboratory testing and actual use, the protective film has excellent performance in scratch resistance, which can effectively protect the screen from scratches and wear, extending the service life of the equipment.

8. Future development trends

As electronic devices continue to be updated, the demand for electronic screen protectors will continue to grow. In the future, the application of bis-(2-dimethylaminoethyl) ether in electronic screen protectors will show the following development trends:

  1. High performance: By optimizing the addition ratio and process of bis-(2-dimethylaminoethyl) ether, the scratch resistance of the protective film is further improved.
  2. Multifunctional: While improving scratch resistance, it also adds anti-fingerprint, anti-glare and other functions to meet the diverse needs of users.
  3. Environmental Protection: Developing environmentally friendly dual-(2-dimethylaminoethyl)ether reduces environmental pollution and meets the requirements of sustainable development.

9. Conclusion

Bis-(2-dimethylaminoethyl)ether, as an important chemical additive, plays an important role in the anti-scratch properties of electronic screen protectors. By enhancing surface hardness, improving wear resistance and improving surface smoothness, bi-(2-dimethylaminoethyl)ether effectively improves the comprehensive performance of the protective film, extends the service life of the equipment, and improves the user experience. In the future, with the continuous advancement of technology, the application of bis-(2-dimethylaminoethyl) ether in electronic screen protectors will become more widely used, providing a more reliable solution for the protection of electronic devices.

Note: The content of this article is original and aims to provide a detailed analysis of the anti-scratch properties of bis-(2-dimethylaminoethyl) ether in electronic screen protectors. The data and analysis in the article are based on existing knowledge and experience and are for reference only.

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