Latex paint used in plasma at this stage of the application and development prospects

With the development of our national economy, construction of China's national economy in percentage increases, with the number of buildings, decoration of the building have become increasingly demanding. High color, natural is the new fashion. In China, construction paint, especially latex paint despite the great progress, but there are a number of issues, particularly the external wall coatings weatherability, construction, etc. There are many less. Often appear faded, pink, cracks, stains, and other ills, and limited the application of latex paint on the walls outside. On the one hand and production techniques, technology and equipment, on the other hand, the domestic construction and coating raw materials related to the quality. Therefore, to improve the quality of raw materials, architectural coatings industry has become a vast number of colleagues duties.

Building with coatings pigment paste (for latex) paint from the building decoration, the requirements have excellent dispersion stability, migration resistance, light resistance, chemical resistance, as well as medium-and co-ordination of paint. Foreign paint (latex) paint used in the production of pulp by specialized companies. Comparing the well-known Swiss company Ciba Specialty Chemicals, BASF of Germany, Hurst, Fen Landi old lira, and so on, the supply of paint products manufacturer. In China, due to the construction of latex paint is not the amount of previous years, and the 107 low-grade paint pigment for pulp demand is very little demand for pulp paint, so there are very few specialized manufacturers producing latex specialized pigment paste. Most manufacturers are for personal use or to use home-made ink, textile and so on in place of color. As the color of the inadequate understanding of the plasma performance, improper choice, made in the film fading, discoloration, Fa Hua and other issues to the detriment of its decorative. In recent years, with latex paint on the walls outside the large-scale applications, some domestic manufacturers to start producing latex paint with paste. Changzhou Chemical Industry Institute of Chemical paint on the basis of market demand, based on years of successful experience in the development of latex paint, at home and abroad selection of high-quality pigments and additives dispersed, development and production of a series of special latex wall paint pulp. The pigment dispersion stability, good durability, compatibility with various types of latex paint, and reached the level of similar foreign products.

Second, use latex paint on the basic profiles

Their color is divided into components of organic and inorganic color pigments, inorganic pigments of the light-fastness, weatherability, chemical resistance of media is better than organic pigments, organic pigments, but not as bright color, shading power is relatively low. Such as iron oxide yellow, red iron oxide. China is iron oxide yellow, red-producing countries, although with foreign products in the color stability of the dispersed nature of some aspects of the gap, but generally adequate to meet the requirements of the use of latex paint on the external walls. Organic pigments into the traditional organic paint (or paint classic) and modern high-level organic pigments. Usually the previous Phthalocyanine traditionally known as the varieties of organic pigments, such as azo pigments. Any subsequent high-performance paint pigment known as the modern high-level, such as phthalocyanine pigments, condensation azo-based paint, paint acridone quinoline, indole-two-different-color-pyrrole. The former structure is simple and low molecular weight, light-fastness, poor weather, relatively cheap, generally used only inside. The individual species under special circumstances can also be applied externally. The latter due to higher molecular weight and structure of the complex, with a very good light-fastness, weatherability, migration resistance, its durability and iron-based pigments can be comparable, bright color, the higher the price.

The main wall emulsion paint with excellent weatherability of iron-based paints and high-level organic pigments. Common species are Phthalocyanine, condensation-Azo, quinoline Acridine ketones, as well as carbazole 2 triazine evil, and so on.

Third, the pigment paste prepared by wetting agents and other additives dispersed

As the main color is divided into inorganic pigments (pigments polarity) and organic pigments (non-polar paint). Wetting dispersant used mainly ionic and nonionic. Especially at times difficult to dispersant and wetting agent role as distinct from each other. About the species into three categories. The first category: inorganic compounds (such as sodium hexametaphosphate, sodium, potassium tripolyphosphate, and so on); the second category: organic compounds (such as anionic, nonionic surfactants); third : Polymer dispersant (such as poly-carboxylic acid salts, the salt polypropylene, maleic anhydride copolymer, etc.). Inorganic inorganic pigment dispersant on a good dispersion, but the storage stability is not good, easy to increase the viscosity. Organic pigment dispersant on the surface wetting better. Polymer dispersant broader application, both inorganic pigments also apply to organic pigments, paints and slurry storage stability, viscosity change little in the paint in good dispersion. General color pigment dispersed the pulp of three processes: wet - scattered - stability. In particular, organic pigments in water-based dispersion medium, wetting all the more important, because the surface tension of water than the polar organic pigments much. First of all, wet paint particles on the surface of alternative media and aggregates in the air, and water-based medium to lower the surface tension of the organic paint surface tension following the completion of wetting at the same time in the paint particles on the surface to form double-layer, to borrow Repulsion of the opposite sex so that the principle of decentralized system stabilization. In order to reinforce stability of the dispersed pigment particles, the use of polymer dispersant on the surface so that the pigment particles to form water-absorption layer, with effect hindered by a more decentralized system stabilization. In addition pigment paste used antifreeze, mold microbicides, pH value of maintaining agent, extinction, etc., in order to paste in the paint with latex paint in the use of Merit.

Fourth, use latex paint and its application performance plasma

According to the color of light plasma, weatherability paste with latex paint can be divided into external and internal use. Usually with can be used for external use, but the color can not be used for external use. As the use of latex paint with Seqian, less the amount of paste paint, latex paint on the cost impact, many manufacturers will be mid-double as external color paste used within. External color plasma from the main light-fastness, weatherability, alkali, coloring, as well as the storage stability of emulsion paint and matching, price be taken into account. Pulp and paint with latex paint and mainly refers to the pulp in emulsion paint color in the exhibition, latex paint on the plasma viscosity and storage stability of emulsion paint. Table 1 institution-based paint production of major species and the plasma performance, our table for two or three in the paste in the use of latex paint.

Latex paint in the use of slurry should pay attention to colors. If light-colored latex paint, paint directly to the pulp by adding latex paint, as customers deploy the necessary color. If the preparation of dark paint on the emulsion paint need to adjust the recipe accordingly, the reduction or elimination of Formula among white pigment titanium dioxide and other usage. Coloring in the allocation of different levels of latex paint from meeting the performance requirements and lower costs consideration, the color of the plasma level of weathering the choice should also be considered. Light-colored paint chosen to weather the high level of pigment paste, dark paint to choose a slightly lower level of weathering the paint slurry, which can reduce costs, but also to achieve satisfactory results.

Fifth, choose paint colors and with

Through the practice of human life experience and nature of the long-term observation of different colors to form a different impression, and Lenovo. In other words, different people in different colors to the feeling. Red, orange, yellow color for a class in order to give a crisp, lively, warm feel to be known as warm. Green, blue and purple to give people the feeling of cold known as cool. Black, white, and so called neutral color. That is why we in the design or color matching, should focus on the different environment, different conditions and requirements for color selection, to achieve coordinated, reaching a perfect state.

Construction of the main color of the paint to the main light, it is necessary to take into account the surrounding environment and co-ordination and planning with the intent to take into account the art of architecture. Therefore, the color should not make people feel stimulated, not contrast too strongly. And the color of their choice with the following:

1) The outside walls of buildings, should not be too many varieties of color, should be based on a color-based, the other in a subordinate position, attention to the colors of the changing light and shade;

2) should avoid the use of monochrome and color restoration as far as possible, can improve the decorative effect of:

3) the light of their use and the environment to choose the color and color match.

Sixth, the development trend

Latex paint with high-quality pulp with the advent of color, and the continuous development of a variety of additives, and its color, light, medium chemical resistance, weather resistance will be better. And the dispersion stability and cooperation of a variety of paint will be more satisfied. At present, most manufacturers are still mainly artificial color, in order to increase efficiency and repeatability of color, color has been referred to the computer manufacturer of a variety of latex paint on the agenda. In the 21st century, computer paint color matching in the industry and users in popularity.