Paint oil to water road "heavy and long way to go"

On November 27, northern China was hit by smog for the fourth time since autumn, with PM2.5 PM2.5 extraordinary in many areas of Beijing, Tianjin and Hebei, and the smog area expanded to 530,000 square kilometers at one point. Beijing issued its first orange alert for smog this year on November 30, as the city's PM2.5 concentration increased nearly tenfold in 12 hours, with peak levels at some sites pushing 1,000 micrograms per cubic meter, hitting a record high this year.

Haze is not uncommon in North China, but this time the concentration of PM2.5 is surprisingly high. Why? The Ministry of Environmental Protection and experts said preliminary source analysis showed that raw coal burning and industrial emissions were the main sources of the heavy pollution process across North China. Recent snowfall and cooling in northern China have led to a sharp increase in coal consumption in some regions, leading to an increase in PM2.5 emissions.

PM2.5 is believed to be the main cause of smog, and has long been criticized as a "rat crossing the street." Volatile organic compounds (VOCs) are important precursors to the generation of ozone and PM2.5, which have an important impact on air quality.

It is understood that VOCs are partly from the process emissions of petrochemical enterprises and vehicle exhaust emissions. As a traditional chemical industry, the coating industry should be duty-bound to reduce VOCs emissions and prevent the formation of large quantities of PM2.5.

What is "smog"?

Haze, as the name implies, is fog and haze. It is mainly composed of sulfur dioxide, nitrogen oxide and PM2.5. The first two are gaseous pollutants, and the last particulate matter is the culprit that aggravates haze weather pollution.
       There are several sources of PM2.5. First, automobile exhaust, which contributes about 60% of PM2.5 in urban air. Road dust and construction dust account for about 20% of PM2.5 sources. Third, secondary pollution produced by factories; Four is the low emission of pollutants from burning coal for heating in winter; Fifth, biomass (straw, wood) burning and waste incineration produced smoke and dust, which is also an important source of PM2.5.

According to relevant experts, haze for people's respiratory system and cerebrovascular organs have great damage. At the same time, in the haze weather, the pressure decreases, the inhalable particulate matter in the air increases sharply, the air mobility is poor, the harmful bacteria and viruses spread to the surrounding speed is slow, leading to the increase in the concentration of viruses in the air, the risk of disease transmission is high. Therefore, to fight haze, reduce the occurrence of disease, everyone should act, and in the production process in the emission of VOCs, to make a "contribution" to the formation of PM2.5 paint enterprises is should contribute.

Paint oil to water road "heavy and long way to go"

Coatings according to medium classification can be divided into solvent coating and water-based coating. The production of solvent-based coatings will use benzene, formaldehyde and other chemical reagents, emissions of organic volatiles. Organic volatiles enter the atmosphere and other pollutants in the air to produce secondary pollution, will form PM2.5 and cause ozone exceed the standard. If organic volatiles are not collected and treated effectively, they will all evaporate into the atmosphere. As a veritable paint production country, in 2014 January to December, China's cumulative production of paint 16.4819 million tons. Behind such a huge output is hidden not a small amount of environmental pollution and energy consumption, and such a base coating products in the coating process will emit millions of tons of VOCs into the atmosphere.
       The smog weather is pressing north China, arousing everyone's desire for health and safety, and ringing the alarm bell for people's environmental awareness. In fact, in recent years, consumers' awareness of environmental protection has been significantly improved, "green environmental protection", "low-carbon life" and other words have long been deeply rooted in the hearts of the people.

And paint enterprises also seem to be aware of the market demand changes, have been transformed to "oil to water" road, according to the paint association incomplete statistics, traditional paint brands have not less than 300 enterprises for transformation and upgrading, research and development and production of water paint, vigorously develop green environmental protection paint, green route. According to the investigation, the use of water-based paint instead of solvent paint, spray in the process can make organic compounds (VOC) emissions reduce more than 70%, the effect of environmental protection is extremely significant. However, it is difficult to popularize waterborne paint due to the immature product and coating process, high production cost and the limitation of physical and chemical properties of waterborne paint. Take the furniture industry as an example, water-based paint only accounts for 7%-8% in the furniture field, while solvent-based paint is still dominant in the furniture field.

It seems that paint enterprises to take the "oil to water" road, is still "a long way to go". But as the development of society and the progress of science and technology, water-based paint will be popular and development.

National policies guide the benign development of Tu enterprises

In 2015, as the final year of the 12th Five-Year Plan and an important year for the 13th Five-Year Plan, environmental protection will become the "strong voice" of this year's two sessions under the "new normal" of economic development focusing on improving quality and efficiency. This year, the country has hardly been idle in the fight against environmental pollution. In February, the country collects consumption tax to coating, below construction condition VOC content is under 420 grams/litres (contain) coating is exempt from levy consumption tax; In July, Shenzhen banned the use of oily paint, and Beijing also compulsory furniture production needs to use water-based paint; In October, Beijing began to collect volatile organic compounds (VOCs) pollution charges in 17 small sectors of five major industries, including furniture manufacturing, packaging and printing, petrochemical, automobile manufacturing and electronics. The frequent implementation of a series of environmental protection policies shows the strength and determination of the state to control environmental pollution.

Under the encouragement and guidance of national policies, paint enterprises have been on the road of low carbon environmental protection, to reduce VOC emissions to make efforts, for the resistance to haze weather to contribute a force.

In 2013, the State Council released the Action Plan for the Prevention and Control of Air Pollution, which pointed out that after five years of efforts, China's air quality has generally improved and heavy pollution days have been significantly reduced. Among them, PM2.5 in the Beijing-Tianjin-Hebei region, the Yangtze River Delta region and the Pearl River Delta region have been reduced by around 25%, 20% and 15% respectively. In March this year, the Government Work Report pointed out that in 2015, carbon dioxide emission intensity will be cut by at least 3.1%, chemical oxygen demand and ammonia nitrogen emissions will both be cut by around 2%, and sulfur dioxide and nitrogen oxide emissions will be cut by around 3% and 5% respectively.

At once, go to the end of 2015 and the "low carbon environmental protection way is has continued, in the policy and market, under the dual role of coatings enterprises will be the concept of low carbon environmental protection more deeply into the enterprise idea, promote low carbon environmental protection consciousness on thought, meet the higher requirements of environmental protection products, to promote the sustainable development of enterprise and industry, and make unremitting efforts to build beautiful homes.