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.
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.
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 |
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.
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:
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:
To verify the weather resistance improvement effect of bis ethers in automotive exterior parts, we conducted the following tests:
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 |
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.
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.
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.
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.
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.
The synthesis process of bis-(2-dimethylaminoethyl) ether mainly includes the following steps:
In addition to automotive exterior parts, bis-(2-dimethylaminoethyl) ether is also widely used in the following fields:
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.
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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