Water-based industrial paint is a kind of paint that does not use organic solvents as diluents, but uses water as the dissolving medium. Based on the green performance of water-based industrial paints, the state has issued a series of environmental protection policies to support the application of this new type of paint. With the help of policies, The penetration rate of domestic water-based industrial paint has increased significantly. The progress of water-based industrial paint has promoted the rapid development and use of a series of environmentally friendly materials, which has solved the problem between environmental protection and development to a certain extent.
Progress 1, the progress of water-based resin
The development of water-based industrial coatings is inseparable from the advancement of water-based resins. Water-based resins have a wide range of uses and high added value. For many years, they have been regarded as key projects in the development of the chemical industry. As the main raw material of water-based industrial paint, water-based resins have been given higher requirements with the enhancement of people's environmental protection concepts. There are various types of water-based resins, and each has its own advantages and disadvantages. If you want the resin to play the required performance in the application, you need to modify the water-based resin.
Take the acrylic resin that we are usually familiar with as an example. It has high hardness, certain weather resistance, chemical resistance and other characteristics, but it is difficult to take into account the toughness. Water-based polyurethane resins generally have good film-forming properties, excellent toughness, but lack of hardness. Therefore, we can learn from each other and use technical methods to mix the two resins to modify and synthesize water-based acrylic polyurethane resin with excellent performance. Taking into account the hardness and toughness, it has the characteristics of water-based, solvent-free, and non-polluting. Modified resins have been developed and successfully applied to the preparation of water-based industrial paints, which has accelerated the progress of water-based industrial paints.
Progress 2, the improvement of environmental protection awareness of coating companies
In recent years, the environmental protection and safety supervision situation has become more and more severe, and environmental protection requirements have risen to very high standards. The coating industry is a key industry for VOCs remediation. The government requires companies to establish and implement VOCs pollution prevention measures throughout the production process. Under the mandatory emission reduction requirements, many coating companies have adapted to the requirements of the times and actively transformed themselves. The most obvious feature is to replace the traditional solvent-based coatings with water-based coatings that are more environmentally friendly.
At present, the technology of water-based industrial paint is becoming more and more mature, and the increase in demand has driven the penetration rate of this new type of coating. At present, water-based paint can be seen in many metal product processing, auto parts manufacturing, machinery manufacturing and other industries in China.
Source: Chemical Network
