With the increase in environmental awareness, environmentally friendly coatings are becoming more and more widely used in the fields of construction, automobiles, furniture, etc. Environmentally friendly coatings not only require low VOC (volatile organic compounds) emissions, but also require excellent properties such as rapid drying, good adhesion, weather resistance, etc. As a multifunctional additive, DMAEE (dimethylaminoethoxy) plays an important role in environmentally friendly coatings. This article will discuss in detail the rapid drying and excellent adhesion of DMAEE in environmentally friendly coatings, and provide relevant product parameters and practical application cases.
DMAEE (dimethylaminoethoxy) is a colorless to light yellow liquid with the following basic characteristics:
DMAEE has excellent wetting, dispersing and stability, so that it can effectively improve the performance of the coating in the coating.
The development trend of environmentally friendly coatings is to reduce VOC emissions and improve the environmentally friendly performance of the coatings. As a low VOC additive, DMAEE can significantly reduce the VOC content of the paint without affecting the performance of the paint. In addition, DMAEE also has excellentDrying properties and adhesion make it an important ingredient in environmentally friendly coatings.
DMAEE can react with the resin and curing agent in the coating through the amino and hydroxyl groups in its molecular structure, accelerate the cross-linking reaction of the coating, thereby shortening the drying time of the coating. The specific mechanism is as follows:
The following table shows the effects of different DMAEE addition amounts on the paint drying time:
| DMAEE addition amount (%) | Table drying time (minutes) | Practical work time (hours) |
|---|---|---|
| 0 | 30 | 6 |
| 1 | 20 | 4 |
| 2 | 15 | 3 |
| 3 | 10 | 2 |
It can be seen from the table that with the increase in the amount of DMAEE, the drying time of the paint is significantly shortened.
DMAEE can form hydrogen bonds and chemical bonds with the surface of the substrate through the amino and hydroxyl groups in its molecular structure, thereby improving the adhesion of the coating. The specific mechanism is as follows:
The following table shows the different DEffect of MAEE addition amount on coating adhesion:
| DMAEE addition amount (%) | Adhesion (level) |
|---|---|
| 0 | 2 |
| 1 | 1 |
| 2 | 0 |
| 3 | 0 |
It can be seen from the table that with the increase in the amount of DMAEE, the adhesion of the coating is significantly improved.
DMAEE not only plays a role alone in the coating, but also produces synergistic effects with other additives, further improving the performance of the coating. Here are the synergies of DMAEE and several common additives:
DMAEE is used in conjunction with leveling agents to significantly improve the leveling of the coating and reduce the surface defects of the coating. The specific mechanism is as follows:
DMAEE is used together with defoaming agents to effectively reduce bubbles in the coating and improve the surface quality of the coating. The specific mechanism is as follows:
DMAEE is used in conjunction with thickeners, which can significantly improve the viscosity of the coating and improve the construction performance of the coating. The specific mechanism is as follows:
In architectural coatings, DMAEE can significantly improve the drying speed and adhesion of the coating and reduce the surface defects of the coating. The following is a practical application case:
In automotive coatings, DMAEE can significantly improve the drying speed and adhesion of the coating and reduce the surface defects of the coating. The following is a practical application case:
In furniture coatings, DMAEE can significantly improve the drying speed and adhesion of the coating and reduce the surface defects of the coating. The following is a practical application case:
The following are typical product parameters of DMAEE:
| parameter name | parameter value |
|---|---|
| Appearance | Colorless to light yellow liquid |
| Density (g/cm3) | 0.95 |
| Boiling point (°C) | 200 |
| Solution | Easy soluble in water and organic solvents |
| pH value | Alkaline |
| Flash point (°C) | 90 |
| Viscosity (mPa·s) | 10 |
When choosing DMAEE, the following factors should be considered:
DMAEE should pay attention to the following safety matters during use:
DMAEE as a low VOC additive has excellent environmental protection performance. Its low VOC emissions can effectively reduce the pollution of the paint to the environment, which is in line with the development trend of environmentally friendly paints.
DMAEE dimethylaminoethoxy plays an important role in environmentally friendly coatings, especially in rapid drying and excellent adhesion. Through its unique molecular structure and chemical reaction mechanism, DMAEE can significantly shorten the drying time of the paint, improve the adhesion of the coating, and produce synergistic effects with other additives, further improving the performance of the paint. In practical applications, DMAEE has been widely used in construction, automobile, furniture and other fields, achieving significant results. When choosing and using DMAEE, comprehensive consideration should be made based on factors such as coating type, drying time requirements, adhesion requirements and environmental protection performance to ensure the best performance of the coating.
Through the detailed discussion of this article, I believe that readers have a deeper understanding of the important role of DMAEE in environmentally friendly coatings. I hope this article can provide valuable reference for technicians and researchers in the coating industry and promote the further development of environmentally friendly coatings.
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