Environmental upgrades in the automotive coating industry

China Paint Network
News:
paint is both the face of the car and the car rust-proof background color, black and white blue and gray red is the five main colors of car consumption over the years. The local use of coating technology has a history of more than 80 years, and in the 53-year automotive industry,
automotive coatings
has achieved four major replacements.
China Chemical Society
Coatings
Coatings Professional Committee Deputy Secretary-General Chen Hong analysis: China's passenger car paint accounted for 50% of the original paint, repair paint 20%, parts paint 15% and PV anti-stone paint 15%. Body paint accounted for the largest share of passenger car paint, followed by patch paint, parts paint and anti-stone paint equivalent. Growth will be 7%-8% over the next five years.
the 1990s, European and American automotive plants have replaced traditional organic solvent-based automotive coatings with environmentally friendly automotive coatings. Solvent-based coating is a traditional automotive coating, with organic matter as the main solvent;
water-based coatings
is water as the main dispersion medium of the coating, water-based coatings volatile organic compound emissions than solvent-based coatings reduced by 60% to 70%, traditional solvent-based coatings VOC emissions of about 125g/m2, in order to meet environmental requirements, automotive coatings are To water-based, high solid parts,
powder coatings
three main directions of development, hydration technology is one of the effective ways, especially the most popular metal flash coating, VOC emissions accounted for 66% of the total, the coating hydration, vehicle VOC emissions can be reduced by more than half. VoC emissions can be reduced to 27g/m2 to meet the most stringent environmental requirements if all body coatings are water-based.
by 2001, cars in developed Western markets that had adopted water-based mid-paint and primer had accounted for 7% and 43% of total production, respectively; Europe 32.5% and 36%. Among them, Germany has basically achieved water-like, with 80% of the coating and 93% of the primer.
is currently used in the fourth generation of automotive coatings is the 4th and 5th generation cathode electrophoresis coatings, acid rain, scratch-resistant acrylic coatings. The paint color is metallic and original, and the coating that adapts to the three-layer coating system of the car is represented. Is in recent years the introduction of local car body coating line, the world
coating company
in China set up factories, to meet the international car coating standards and formed. Based on the introduction of car products in different countries, this generation of automotive coatings can be divided into the Japanese system and the European and American systems.
chinese passenger car painting, primer water-like has reached 33%. In 2013, the production of original body paint for passenger cars was 360,000 tons, with electrophoresis paint accounting for the largest share, followed by color paint, which is comparable to varnish. Over the next four years, the proportion of Chinese vehicles using water-based coatings has risen from 33% today to 60%.
6%
China Paint Industry Association President Sun Lianying said that last year, China's paint production growth rate of 6%, the industry's outstanding features are: in 2014, China's total paint industry output of about 14 million tons, the current industrial output value of 330 billion yuan, an increase of 12% over the same period; The total profit was about 24 billion yuan. Industry-wide output and output growth slowed, but better than the same period a year ago, the price of bulk raw materials for coatings fell, corporate profits generally increased.
She believes that it depends on the Ministry of Environmental Protection in recent years to launch the public welfare "industrial coating pollution source VOC emission characteristics and prevention and control measures research" "
building coatings
VOC emission characteristics and prevention and control countermeasures research" "paint industry atmospheric pollutant emission standards", VOC consumption tax and sewage charges, Beijing, Shenzhen and other cities to develop a coating hazardous substances limit local standards - lead pigments, lead additives, impurity lead will gradually withdraw from the paint industry.
last year, in 47 sub-sectors of the petrochemical industry, the coatings industry's efficiency index outsriveed that of upstream products such as petroleum products, with total revenue and profits up 13.2% and 25.7% respectively.
Liu Dengliang, director of the expert committee of China Paint Industry Association, said in the analysis industry that there are few left in the current state-owned enterprises, private enterprises are carrying girder, foreign brands accounted for 30% to 40% of the market, China is the world's largest consumer of paint, but the paint industry's real technological innovation is almost non-existent. Last year the paint market capacity is 600,000 tons of automotive paint, heavy machinery 300,000 tons, and called for coating coating using an integrated production and marketing model, establish the paint industry processing service industry concept,
paint enterprises
abandoned their own small "Tuhao" consciousness. Liu Dengliang thinks.
Yang Yuande, secretary-general of the China Coatings Industry Association, believes that China's paint production growth rate last year was 6%, up from 3.58% the year before, and the growth rate of output value and profit was 10%, about 27,000 yuan per ton, up 3% year-on-year. China's paint industry high-tech content, high value-added products proportion is not high, hovering at 5% to 10% of the low-profit level, but this means that the paint industry concentration will need to improve for a long time.
Empic-friendly coatings
Shanghai Coatings Research Institute professor-level senior worker Zhao Jinbing believes that traditional coatings with organic solvents as thinners, containing a large number of volatile organic compounds (VOCs), China's annual emissions of about 2.2 million tons of VOC into the air, equivalent to 1.3 billion Chinese Data show that industrial solvents account for about 30% of total VOC emissions, becoming one of the main sources of emissions, while VOC emissions of coating adhesives account for about 70% of industrial solvents. Total annual emissions amount to 4 million tons, or about 60 million vehicles a year of VOC emissions. That's equivalent to burning 270 million tons of coal.
The proportion of low-polluting coatings in developed countries such as the United States and Japan has reached 65% to 70%, germany is as high as 80%, and China is less than 50%, so the development of environmentally friendly coatings is an inevitable trend.
, chief engineer of CNOOC Changzhou Coatings and Chemical Research Institute, said that China's solvent-based high-polluting coatings are still dominant for a variety of reasons. First, the cost of the problem; Second, the concept of the problem; Third, the use of habits; Fourth, because environmental protection coatings in some properties are not as good as solvent-based coatings; Fifth, the process of the problem.
The Secretary-General of the China Environmental Protection Association believes that an important source of PM2.5, the main source of pollution caused by haze weather, is VOC, the paint coating industry VOC emissions account for about 1/5 of the total VOC emissions, the paint industry has become one of the scourges of haze, industrial upgrading responsibility is significant.
, according to data, in China, the world-renowned automotive
coatings manufacturer
PPG's main customers include Volkswagen, GM, Mercedes-Benz, BMW, Dongfeng Peugeot, Citroen, Chery and Hainan Mazda. Almost all car manufacturers around the world use PPG automotive coating products or technologies.
, the current development problem of Automotive Coatings in China is the lack of innovative technology, backward production control technology and low level of equipment for coatings. China's domestic brand-name automotive coatings enterprises control market share is very small, the paint industry homogenization competition is very serious, which makes China's automotive coatings enterprises profit margins become smaller.
the current growth of local passenger car water-based coatings, one is policy-driven. Second, the host plant's social responsibility, the concept of green environmental protection has been recognized by most host plants. The third water-based paint technology has matured, currently master the automotive water-based original paint technology of large foreign companies, many years of application experience abroad. Fourth, revenue, water-like paint has reflected more and more benefits - in line with the general trend of environmental protection, promote technological progress, improve the competitiveness of enterprises, create business opportunities. Water-based paint technology from the host plant to the coating line is more common. New lean coating processes with shorter processes, low energy consumption and lower operating costs will be the mainstream of the future.