Breakthrough Progress and Application of DMCHA (N,N-dimethylcyclohexylamine) in the Field of Waterproof Materials
Introduction
With the rapid development of the construction industry, the demand for waterproof materials is growing. Traditional waterproof materials have many shortcomings in performance, environmental protection and construction convenience. In recent years, N,N-dimethylcyclohexylamine (DMCHA) has made breakthrough progress in the field of waterproof materials as a new chemical additive. This article will introduce in detail the characteristics of DMCHA, its application in waterproof materials, product parameters and future development directions.
1. Basic characteristics of DMCHA
1.1 Chemical structure
The chemical name of DMCHA is N,N-dimethylcyclohexylamine, the molecular formula is C8H17N, and the molecular weight is 127.23. Its structure is:
CH3
|
C6H11-N-CH31.2 Physical Properties
| Properties | value |
|---|---|
| Appearance | Colorless to light yellow liquid |
| Density | 0.85 g/cm³ |
| Boiling point | 160-162°C |
| Flashpoint | 45°C |
| Solution | Easy soluble in organic solvents, slightly soluble in water |
1.3 Chemical Properties
DMCHA has the following chemical properties:
- Basic: DMCHA is a weak alkali that can react with acid to form a salt.
- Stability: Stable at room temperature, but decomposition may occur under high temperature or strong acid and alkali conditions.
- Reaction activity: DMCHA can react with a variety of organic compounds and is often used in catalysis, cross-linking and other reactions.
2. Application of DMCHA in waterproofing materials
2.1 Waterproof coating
2.1.1 Mechanism of action
DMCHA is mainly used as a catalyst and a crosslinker in waterproof coatings. Its mechanism of action is as follows:
- Catalytic Effect: DMCHA can accelerate the curing reaction of polyurethane, epoxy resin and other materials, and improve the film formation speed and strength of the coating.
- Crosslinking: DMCHA can react with active groups in the coating to form a three-dimensional network structure, enhancing the water resistance and mechanical properties of the coating.
2.1.2 Product parameters
| parameters | value |
|---|---|
| Current time | 2-4 hours |
| Water resistance | >96 hours |
| Tension Strength | >10 MPa |
| Elongation | >300% |
| Weather resistance | >1000 hours |
2.2 Waterproof coil
2.2.1 Mechanism of action
DMCHA is mainly used as a plasticizer and stabilizer in waterproof coils. Its mechanism of action is as follows:
- Plasticization effect: DMCHA can improve the flexibility and ductility of the coil, making it less likely to break during construction.
- Stable effect: DMCHA can inhibit the aging of the coil under high temperature or ultraviolet irradiation and extend its service life.
2.2.2 Product parameters
| parameters | value |
|---|---|
| Thickness | 1.5-2.0 mm |
| Tension Strength | >15 MPa |
| Elongation | >400% |
| Heat resistance | >120°C |
| Dropping resistance | <-40°C |
2.3 Waterproof mortar
2.3.1 Mechanism of action
DMCHA is mainly used as a dispersant and reinforcer in waterproof mortar. Its mechanism of action is as follows:
- Dispersion: DMCHA can improve the dispersion of various components in the mortar and improve the uniformity and compactness of the mortar.
- Enhancement: DMCHA can react with cement particles in the mortar to form a dense network structure, enhancing the strength and waterproofing properties of the mortar.
2.3.2 Product parameters
| parameters | value |
|---|---|
| Compressive Strength | >30 MPa |
| Fracture Strength | >6 MPa |
| Water absorption | <5% |
| Water resistance | >72 hours |
| Weather resistance | >500 hours |
3. Advantages of DMCHA in waterproofing materials
3.1 Environmental protection
DMCHA is a low-toxic and low-volatility chemical that meets the environmental protection requirements of modern building materials. It will not produce harmful gases during its use and are friendly to construction workers and the environment.
3.2 Construction convenience
DMCHA can significantly improve the construction performance of waterproof materials, such as shortening curing time, improving the leveling of the paint, enhancing the flexibility of the coil, etc., thereby reducing construction difficulty and cost.
3.3 Performance superiority
DMCHA can significantly improve the performance indicators of waterproof materials, such as water resistance, weather resistance, mechanical strength, etc., so that it can maintain good waterproofing effect in harsh environments.
IV. Future development direction of DMCHA in waterproof materials
4.1 Multifunctional
The future DMCHA will not only be limited to a single function in waterproof materials, but will develop towards multifunctionality. For example, DMCHA modified waterproof materials with functions such as self-healing, antibacterial, and antistatic.
4.2 Intelligent
With the development of smart materials, DMCHA is expected to combine with smart materials to develop intelligent waterproof materials with induction and response functions. For example, smart coatings that can automatically adjust waterproofing performance based on environmental humidity.
4.3 Greening
In the future, DMCHA will pay more attention to green and environmental protection, develop more environmentally friendly and degradable DMCHA derivatives to reduce environmental pollution.
V. Conclusion
DMCHA, as a new chemical additive, has shown great application potential in the field of waterproof materials. Its excellent catalytic, crosslinking, plasticizing, dispersing and other properties have significantly improved the performance indicators of waterproof materials. In the future, with the continuous advancement of technology, DMCHA will make more breakthroughs in multifunctionalization, intelligence, greening, etc., bringing more innovation and changes to the construction waterproofing industry.
The above content introduces the breakthrough progress and application of DMCHA in the field of waterproof materials in detail, covering its basic characteristics, application fields, product parameters and future development directions. Through the form of tables and data, the content is more intuitive and easy to understand. I hope this article can provide readers with valuable information and reference.
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