VOCs: the English full name is volatile organic compounds.
VOCs emission main industries: petroleum refining, bulk organic chemicals, organic fine chemicals, storage facilities, coating, leather processing, etc.
The current situation of VOCs emission standard is accompanied by the development of domestic economy and the aggravation of environmental pollution. The state has also issued a number of policies and regulations to deal with environmental pollution. The Ministry of ecological environment clearly proposed in the key points of national air pollution prevention and control in 2019 issued on February 27 to accelerate the promotion of volatile organic compounds (VOCs) in petrochemical, chemical, industrial coating, packaging and printing industries Governance requires local governments to fully implement the three-year action plan to win the blue sky defense war.
In order to implement the work of VOCs supervision and law enforcement, provinces and cities have introduced local VOCs emission standards. Although the corresponding VOCs emission standards have been issued all over the country, there are no perfect national standards yet. The published VOCs landmarks have different degrees of differences in monitoring items and standard limits.
It is believed that with the continuous improvement of technical standards, national standards will come out soon, and even based on the characteristics of the industry, VOCs emission standards of different industries will be issued to make the standards more targeted.
The significance of waterborne industrial paint the diluent of traditional paint uses a large number of organic solvents, which volatilize in the atmosphere, will cause harm to the health of construction and users, and also cause environmental pollution, and because the solvent is flammable and explosive, there are also fire hazards. According to statistics, VOCs released into the atmosphere by the coating industry is the second largest pollution source after automobile exhaust.
Waterborne industrial paint not only has obvious advantages in environmental protection, but also has considerable advantages in other aspects:
The use of waterborne industrial paint can greatly reduce the toxicity of traditional organic paint, and at the same time, the occurrence of fire and other disasters can be effectively avoided.
In the non-toxic treatment of waste, the waste produced by common waterborne industrial paint is easier to be treated than the traditional solvent based paint.
In economy, compared with traditional paint, waterborne industrial paint has more obvious advantages, which is determined by the characteristics of water solvent. Compared with traditional coatings, this solvent has more advantages in economic stability.
Compared with solvent based coatings, the biggest advantage of waterborne industrial coatings is low VOCs emission, low volatile rate, high surface tension, high conductivity, corrosion and easy to produce bubbles.
The volatilization of water in water-based paint is mainly controlled by controlling the temperature and humidity of spray booth, while the evaporation rate of diluent can be adjusted for solvent based paint to adjust the solid content. The solid content of waterborne paint is usually 20-30%, while that of solvent paint is as high as 60-70%. Therefore, the smoothness of waterborne paint is better, but the heating flash dry area should be increased at the same time, otherwise there will be quality problems such as sagging and bubbles.
The application prospect of waterborne industrial paint the characteristics of low VOCs, non irritating smell and non flammable explosion can significantly reduce environmental pollution and save resources, making it an environment-friendly paint. With the continuous improvement of people's awareness of environmental protection and the increasingly strict environmental protection laws and regulations, waterborne industrial paint will become the leading role of the world paint market in the 21st century, and become the first choice paint for agricultural equipment, engineering machinery, commercial vehicles, rail transit, steel structures, petroleum refining and other industries.
Paint circle
Micro signal: tulioyq
(the content of this article is from the network, please contact to delete if there is any infringement)