The paint function is various. Paint mainly has a decorative and protective role, it is coated on the surface of the formation of a layer of film can be decorative and beautify the object, can be isolated air, sunlight, moisture, and corrosive media, such as salt water and chemicals, make it less susceptible to chemical corrosion and decay changes. At the same time, a layer of hard film is added to the surface of the object, which can reduce the degree of friction and impact on the surface of the object, thus playing a certain role in the physical and chemical properties of the object protective effect.
Various special paint for special purposes also have good properties such as acid resistance, alkali resistance, rust resistance, algae resistance, insecticide, mildew resistance, camouflage, insulation, and so on。
1 . First paint function is protection
For example, the body of a car made of steel, if it is not painted, will not last longer. protection, it will rust to uselessness in a year or so. The hulls of 10,000-ton cargo ships will be severely corroded without paint protection, and if the bottom of the ship is not coated with antifouling paint, microorganisms will be able to destroy the hulls of the ships. Bottom clumps not only affect speed and increase fuel consumption, but also damage the hull of the ship in a very short time. Another example is the steel bridges erected on rivers, if coated with strong anti-rust ability and good weather resistance, their service life can be extended.
Paints are widely used in industry, transportation, and construction sectors. In the chemical industry coatings are indispensable anti-corrosion materials for equipment and pipelines.
2. Decorative role
Paint comes in a variety of brilliant, brilliant colors and is applied to the surface of the object.
Face, you can change the original color of things I, giving people a sense of beauty, so that the environment can be improved, the color sea can be reconciled. For example, in the production plant, to the four walls painted light brown walls, painted white on the upper part, equipment painted light gray or lake green, people in such a Working in the environment is relaxing and enjoyable, which leads to increased labor productivity.
In daily life, all kinds of household goods and appliances are inseparable from paint, such as wooden furniture, stationery, thermos bottles, washing machines. Fans, refrigerators, televisions, etc., not only can paint be used to protect and prolong their service life, but it also serves as an aesthetic decoration paint function. Modern home furnishings, landscaping, etc. are increasingly showing the important role of paint. In a manner of speaking, paint can decorate a perfectly ordinary object with an artistic surface and give it a beautiful finish. This serves to spice up people’s spiritual life.
3. Special roles
Paint in some cases, but also has a special function. Such as electrical insulation is often with the help of good insulation properties of special coatings to achieve, a good motor, if there is no excellent Insulating ferrules can lose their effectiveness if they are not compatible. In the developing technologies of high-speed aircraft, rockets, satellites and spaceships, the performance of the paint film is required at a higher level. Requirements, the coating to air flow wear, radiation, high temperature conduction and other adverse factors can be overcome and improved. Therefore, the paint has become an indispensable supporting material in the national defense and industrial products. In wartime, the building, outdoor large equipment are using the coating color to camouflage, so that it is not discovered by the enemy, so as to play a role in the war. Special protective effect of paint function.
4. Symbolic role
Paint has also been widely used as a color symbol, with different colors applied to indicate danger, warning, safety, forward, stop, and other signals, which are gradually being standardized internationally.
In factories, various equipment, pipes, containers, etc. are coated with different colors to make them easy to identify, improve the accuracy of operation, and reduce accidents.
In transportation, paint is also widely used as a sign, such as railway number paint, road marking paint, etc., which plays a very important paint function in ensuring traffic safety and maintaining traffic order.
In short, paint plays an important role in the national economy and is an indispensable supporting engineering material in national defense, military industry, and industrial and agricultural production. At the same time, it has a direct impact on the quality and service life of industrial and agricultural products. There is an analogy: “Oil is the blood of industry”, “Electricity is the heart of industry”, then the paint can be called “industrial equipment”. Coatings”, or “Coatings are the armor of industrial products”.
With the development of the national economy and the demands of modernization, the paint industry will be required to meet higher and newer requirements, which will make the paint industry play an increasingly important role and become an indispensable part of the national economy.
