On this occasion began with a compilation and explanation of terms related to the subject additives.
* Accession
Phenomenon of holding together two bodies Interfacial intimate contact based on physical (intermolecular forces) and also in some cases unions chemical through the interface. This is one of the main properties of paints, coatings and inks to be decisive in the behavior and
life of the coating.
Theoretically, the adhesion can be improved by increasing the contact surfaces (using or creating rough or porous substrates) by multiplying and reinforcing Interfacial contact points.
* Accession Promoters
Are additive to improve adhesion and duration, they can be generically called anchoring and adhesion additives.
They are of two different modes of use, including pre-treatment of the substrate and as a component of paint formulation.
They can be classified into three groups:
- Resin adhesion promoters (usually Oligomers)
- Additives Adhesion promoters (usually low MW compounds that act by chemical bonds)
- Additives wet substrates breeders (breeders physical anchor)
* Adsorption (physical adsorption)
Adsorption is defined as the action of adsorbing and this term as the attraction and retention of a body of molecules or ions of another body.
We can say more specifically that it is the difference in surface concentration (Interfacial) of a defined component (adsorbate) neighbor to the interface or solid surface (adsorbent) compared with the concentration in the rest of the solution (or suspension).
* Air trapped (microfoam)
This is a defect due to air in the paint film in the form of micro-bubbles and generally incorporated during the implementation process.
This trapped air can be attributed to insufficient wetting of the substrate, viscosity problems during the implementation, characteristics of some rapid methods of application.
* Anti - blocking
It is the property that prevents two painted surfaces stick entity if, depends mainly on the Tg of the / s resin, hardness and surface energy in general, as well as the roughness of the coating.
* Anticapa
Volatile additive capable of preventing the formation of "layer" or "skin" (surface layer dry) on the container, mainly in oxidative drying paints.
These additives act as antioxidants and are effective while the paint is in the closed container when it is applied or the container is not closed.
* Anti - sagging
Are additives, rheology modifiers, liquid coating which give higher viscosity at low shear. In order to improve
behavior or sag resistance or "trickle" of the paintings to be applied on vertical surfaces.
* Antifoam
Are additive to prevent or combat the foam mainly used in water paints
* Antifouling
Additives or system of marine paints to prevent fouling (scaling of organisms) on the coating of ship hulls that remain underwater.
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Manufacturing of Paint
Paint Manufacture
martes, 28 de junio de 2011
domingo, 26 de junio de 2011
Why is used dispersants in the manufacturing of paint?
The effective dispersion of pigments and fillers in a coating system is critical and affects many aspects associated with the final performance of the system.
Among these aspects we can mention the energy required to obtain the milling and good color development, final product stability and water resistance and alkali dry film.
Dispersants greatly influence all these factors and require careful selection to optimize the systems.
The aqueous coatings historically followed the guidelines of the "coatings" of the paper industry: at first it was established that the polyphosphates were dispersing and cost-effective for titanium dioxide, calcium carbonate and kaolin.
When the industry became more efficient it should improve, too, the synthetic polyelectrolyte dispersants utilizados.Los varying composition, are now well known and used in the coatings industry. These products are able to adsorb strongly on the pigment particles to a greater or lesser extent depending on the pigment system in which they are used.
The final assessment of any additive in a coating system is how the additive affects the other properties of sistema.Ahora well, assuming a wide range of chemicals can act as dispersing pigments themselves, and understanding the chemistry base contributes to the desirable properties of the coatings, we ask:
What are the potential advantages of using polymeric dispersants?
In physicochemical terms, polymeric dispersants can reduce interactions between pigment particles in a much more efficient than conventional dispersants. The most obvious is to reduce the viscosity of the formulation.
The ability to reduce interactions between pigment particles also confers certain benefits associated with the optimization of tinting pigments. We can subdivide the advantages of these dispersants in productivity gains (higher concentrations of pigment), color power (more efficient use of color) and coating quality.
1. Increased productivity:
It is possible to disperse pigment in a polymeric dispersant solution better than a resin solution. This will provide a base grind much higher concentration of pigment to any selected viscosity.
The concentrate is then diluted with grinding the resin to give the traditional coating.
There is an increase in productivity by achieving higher concentrations of pigment in the grind and with this, more effective utilization of equipment.
This is used in those considered difficult to disperse pigments and resins considered low dispersing power.
2. Increased strength of color:
All providers of dispersants say their use increases the effectiveness of the strength of the pigment, especially in these cases. This proved to be true if the size of the pigment particle is less than 0.1 microns.
It is recognized that the intrinsic strength of color increases with milling time, the speed with which it tends to plateau in the curve varies from one pigment to another.
The problem arises in those bases milling with high proportions of very small pigment particles as they are much more prone to flocculation.
It required an efficient dispersal system to stabilize these small particles so that the intrinsic strength of the color to develop on the surface of the coating.
Given this case, the polymeric dispersants are usually much more efficient to stabilize the dispersion of fine particles that resins conventionally used in the coatings industry.
more information:
Paint Formula
How To Manufacture Paint
Among these aspects we can mention the energy required to obtain the milling and good color development, final product stability and water resistance and alkali dry film.
Dispersants greatly influence all these factors and require careful selection to optimize the systems.
The aqueous coatings historically followed the guidelines of the "coatings" of the paper industry: at first it was established that the polyphosphates were dispersing and cost-effective for titanium dioxide, calcium carbonate and kaolin.
When the industry became more efficient it should improve, too, the synthetic polyelectrolyte dispersants utilizados.Los varying composition, are now well known and used in the coatings industry. These products are able to adsorb strongly on the pigment particles to a greater or lesser extent depending on the pigment system in which they are used.
The final assessment of any additive in a coating system is how the additive affects the other properties of sistema.Ahora well, assuming a wide range of chemicals can act as dispersing pigments themselves, and understanding the chemistry base contributes to the desirable properties of the coatings, we ask:
What are the potential advantages of using polymeric dispersants?
In physicochemical terms, polymeric dispersants can reduce interactions between pigment particles in a much more efficient than conventional dispersants. The most obvious is to reduce the viscosity of the formulation.
The ability to reduce interactions between pigment particles also confers certain benefits associated with the optimization of tinting pigments. We can subdivide the advantages of these dispersants in productivity gains (higher concentrations of pigment), color power (more efficient use of color) and coating quality.
1. Increased productivity:
It is possible to disperse pigment in a polymeric dispersant solution better than a resin solution. This will provide a base grind much higher concentration of pigment to any selected viscosity.
The concentrate is then diluted with grinding the resin to give the traditional coating.
There is an increase in productivity by achieving higher concentrations of pigment in the grind and with this, more effective utilization of equipment.
This is used in those considered difficult to disperse pigments and resins considered low dispersing power.
2. Increased strength of color:
All providers of dispersants say their use increases the effectiveness of the strength of the pigment, especially in these cases. This proved to be true if the size of the pigment particle is less than 0.1 microns.
It is recognized that the intrinsic strength of color increases with milling time, the speed with which it tends to plateau in the curve varies from one pigment to another.
The problem arises in those bases milling with high proportions of very small pigment particles as they are much more prone to flocculation.
It required an efficient dispersal system to stabilize these small particles so that the intrinsic strength of the color to develop on the surface of the coating.
Given this case, the polymeric dispersants are usually much more efficient to stabilize the dispersion of fine particles that resins conventionally used in the coatings industry.
more information:
Paint Formula
How To Manufacture Paint
viernes, 24 de junio de 2011
It Requires a Large Investment to Manufacturing of Paint?
Some people mistakenly think that to manufacturing of paint needs to be installed a large factory and high investment, it simply is not true, because you will need is
a small machine to mix and ready, so you can start.
If we review the history of the great factories of the world, we see that most of them owners started well, garage or any area open their homes to a small machine and
small investment.
Also in the industrial formulations of paint manufacture, gives you drawings of equipment as detailed, which is so simple that you can send it to any machine shop at a
very low cost, meaning it was designed to minimize manufacturing cost.
And that's not all in the industrial formulations of paint manufacture is also included a color chart in an excel spreadsheet with their amounts so that you will be
more easy to prepare your letter colors.
It also tells you that start the manufacturing of paint and color as these paintings greatest demand, as well as find businesses in your country or city which sells
supplies and all companies make a price quotation which sells cheaper.
All materials used to manufacturing of paint any type of paint are common materials and commonly used in many industries, so you do not have the slightest difficulty
to find many companies selling chemicals in your city.
We invite you to start paint manufacture, is an excellent business and greater profitability.
Our processes are short, simple and require a single machine, our formulations are Clear, modern, good quality and above all inexpensive, allow you to be very
competitive in whatever market and with any type of paint. All explanations our formulas will find you in common language as they are designed specifically for people
without any knowledge in manufacturing.
We clear up that our work is not just "selling theoretical formulae" of those "ordinary" which are used to getting for free or supplied by "general chemistry" firms,
but without any expertise in paints, whose manufacture is very "long and complex", require of many trials to make it perfect, of "several machineries" which besides at
manufacturing, they result so "complex and expensive" that the entrepreneur businessman, no matter how good and enthusiastic can be, gets discouraged and leaves the
project at seeing it unprofitable.
Don't be left behind, discover your own possibilities in Manufacturing Of Paint
Get online today by visiting the author's Manufacturing Of Paint Web site Now where you will find more information.
a small machine to mix and ready, so you can start.
If we review the history of the great factories of the world, we see that most of them owners started well, garage or any area open their homes to a small machine and
small investment.
Also in the industrial formulations of paint manufacture, gives you drawings of equipment as detailed, which is so simple that you can send it to any machine shop at a
very low cost, meaning it was designed to minimize manufacturing cost.
And that's not all in the industrial formulations of paint manufacture is also included a color chart in an excel spreadsheet with their amounts so that you will be
more easy to prepare your letter colors.
It also tells you that start the manufacturing of paint and color as these paintings greatest demand, as well as find businesses in your country or city which sells
supplies and all companies make a price quotation which sells cheaper.
All materials used to manufacturing of paint any type of paint are common materials and commonly used in many industries, so you do not have the slightest difficulty
to find many companies selling chemicals in your city.
We invite you to start paint manufacture, is an excellent business and greater profitability.
Our processes are short, simple and require a single machine, our formulations are Clear, modern, good quality and above all inexpensive, allow you to be very
competitive in whatever market and with any type of paint. All explanations our formulas will find you in common language as they are designed specifically for people
without any knowledge in manufacturing.
We clear up that our work is not just "selling theoretical formulae" of those "ordinary" which are used to getting for free or supplied by "general chemistry" firms,
but without any expertise in paints, whose manufacture is very "long and complex", require of many trials to make it perfect, of "several machineries" which besides at
manufacturing, they result so "complex and expensive" that the entrepreneur businessman, no matter how good and enthusiastic can be, gets discouraged and leaves the
project at seeing it unprofitable.
Don't be left behind, discover your own possibilities in Manufacturing Of Paint
Get online today by visiting the author's Manufacturing Of Paint Web site Now where you will find more information.
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