News Details
The functional coating USES crosslinking agent
2017-6-29 17:16:46
The functional coating USES crosslinking agent
Except for the main protection and decoration function of the substrate, the coating can also have other functions.
Functional coatings are divided into two categories: coatings with intrinsic functions and coatings with non-intrinsic functions (external trigger response mechanisms).
The basic physics and/or chemical mechanism of antibacterial coatings, superhydrophobic coatings, self-stratiform coatings, photochromic coatings, self-healing coatings and thermochromic coatings are introduced in detail.
In theory, in the coating containing all necessary components, there is a force (alone or combined) can realize hierarchical: evaporation of solvent/water, surface tension gradient, reaction kinetics of substrate wetting power and control. Incompatible polymers can be cross-linked at different temperatures and at different rates and times.
For example, the reaction of epoxy resins with sulfide, and the typical reaction of polyester/acrylic resin with isocyanate or melamine formaldehyde curing agent.
As thermoplastic system, therefore, can choose a polymer from low surface energy materials, such as fluorine modified acrylic/polyester/vinyl ether polyol, another polymer selected from the high surface energy materials, such as epoxy resin and acrylic resin. Baghdachi et al. have studied and prepared a sample of polyurethane self-stratification coatings, which can be separated by a single coating to separate paint and varnish.
Besides protecting and decorating the substrate, the coating can have many functions. Functional coating can make the surface have a variety of additional intelligent effect, and make the surface appreciate.
Chinese name: Diethyl toluene diamine(DETDA)
Physical and chemical properties: light yellow transparent liquid, slightly soluble in water, soluble in alcohols, ethers, ketones and other polar organic solvents, and polyether, polyester polyol compatibility.
Density 1.022
Viscosity (20 ℃) ??mPa·ss290±10
Pour Point ℃-9
Boiling point of310°C
Flash Point°C161.1°C
Recently, with the development of research and development and industrialization, there have been coatings with traditional protection, decoration and new functions. Such coatings are often called functional coatings. The heat - changing paint used for the building and the increased transmission paint for the glasses have been in the market for nearly 20 years. Such coatings usually have greater added value.
In general, the coating works in three different areas: the interface of the coating and air, the interior of the coating and the interface of the coating and substrate. Although there are many different kinds of functional coatings, industrialization and some have recognized the function of the coating are mainly: antifouling coating, antibacterial coating, color coating, conductive coating, easy to clean paint, photochromic and cause the color coating, self repair paint and super hydrophobic coating, etc.
All coating has certain surface properties, the common properties of adhesion, anticorrosive, scratch resistance, gloss, hydrophobic, antimicrobial properties, etc., these all belong to surface performance, rather than the overall performance of the coating. The overall performance of coatings includes internal strength, low permeability, low permeability and conventional durability.
In a broad sense, all traditional coatings are functional coatings, except that their function is limited to or fixed to a specific performance. Therefore, functional coatings or multi-functional coatings are composed of a number of concepts and formulations that are indistinguishable from ordinary coatings.
Therefore, the functional coating must have the basic properties similar to the traditional coating, use similar components, and add some special materials.
Direct response components are added to conventional paint formulation, and can not be made into functional coatings. Functional coatings in general can be divided into two kinds of coatings with markedly different functions: the first is with functions of internal coating, for example, a super hydrophobic coating, antibacterial coatings, antifouling coatings, radar wave absorbing coatings, you layer antireflective coating or conductive coatings.
The second type of coating is non-intrinsic, which is to stimulate responsive paint, which needs to be triggered by specific external or internal trigger mechanisms. Such coatings include thermochromic paint, discoloration coatings, touch sensitive coatings, antiseptic coatings, self-healing coatings and shape memory coatings.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
Diethyl toluene diamine(DETDA) http://www.yaruichem.com
Except for the main protection and decoration function of the substrate, the coating can also have other functions.
Functional coatings are divided into two categories: coatings with intrinsic functions and coatings with non-intrinsic functions (external trigger response mechanisms).
The basic physics and/or chemical mechanism of antibacterial coatings, superhydrophobic coatings, self-stratiform coatings, photochromic coatings, self-healing coatings and thermochromic coatings are introduced in detail.
In theory, in the coating containing all necessary components, there is a force (alone or combined) can realize hierarchical: evaporation of solvent/water, surface tension gradient, reaction kinetics of substrate wetting power and control. Incompatible polymers can be cross-linked at different temperatures and at different rates and times.
For example, the reaction of epoxy resins with sulfide, and the typical reaction of polyester/acrylic resin with isocyanate or melamine formaldehyde curing agent.
As thermoplastic system, therefore, can choose a polymer from low surface energy materials, such as fluorine modified acrylic/polyester/vinyl ether polyol, another polymer selected from the high surface energy materials, such as epoxy resin and acrylic resin. Baghdachi et al. have studied and prepared a sample of polyurethane self-stratification coatings, which can be separated by a single coating to separate paint and varnish.
Besides protecting and decorating the substrate, the coating can have many functions. Functional coating can make the surface have a variety of additional intelligent effect, and make the surface appreciate.
Chinese name: Diethyl toluene diamine(DETDA)
Physical and chemical properties: light yellow transparent liquid, slightly soluble in water, soluble in alcohols, ethers, ketones and other polar organic solvents, and polyether, polyester polyol compatibility.
Density 1.022
Viscosity (20 ℃) ??mPa·ss290±10
Pour Point ℃-9
Boiling point of310°C
Flash Point°C161.1°C
Recently, with the development of research and development and industrialization, there have been coatings with traditional protection, decoration and new functions. Such coatings are often called functional coatings. The heat - changing paint used for the building and the increased transmission paint for the glasses have been in the market for nearly 20 years. Such coatings usually have greater added value.
In general, the coating works in three different areas: the interface of the coating and air, the interior of the coating and the interface of the coating and substrate. Although there are many different kinds of functional coatings, industrialization and some have recognized the function of the coating are mainly: antifouling coating, antibacterial coating, color coating, conductive coating, easy to clean paint, photochromic and cause the color coating, self repair paint and super hydrophobic coating, etc.
All coating has certain surface properties, the common properties of adhesion, anticorrosive, scratch resistance, gloss, hydrophobic, antimicrobial properties, etc., these all belong to surface performance, rather than the overall performance of the coating. The overall performance of coatings includes internal strength, low permeability, low permeability and conventional durability.
In a broad sense, all traditional coatings are functional coatings, except that their function is limited to or fixed to a specific performance. Therefore, functional coatings or multi-functional coatings are composed of a number of concepts and formulations that are indistinguishable from ordinary coatings.
Therefore, the functional coating must have the basic properties similar to the traditional coating, use similar components, and add some special materials.
Direct response components are added to conventional paint formulation, and can not be made into functional coatings. Functional coatings in general can be divided into two kinds of coatings with markedly different functions: the first is with functions of internal coating, for example, a super hydrophobic coating, antibacterial coatings, antifouling coatings, radar wave absorbing coatings, you layer antireflective coating or conductive coatings.
The second type of coating is non-intrinsic, which is to stimulate responsive paint, which needs to be triggered by specific external or internal trigger mechanisms. Such coatings include thermochromic paint, discoloration coatings, touch sensitive coatings, antiseptic coatings, self-healing coatings and shape memory coatings.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
Diethyl toluene diamine(DETDA) http://www.yaruichem.com
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