Development trend of water-based green coating for wind power

At present, the situation of air pollution prevention and control is serious, and speeding up the reduction of volatile organic compounds (VOCs) in industrial enterprises is of great significance for promoting the green development of industry and the improvement of the quality of the atmospheric environment. At a recent seminar on environmental protection coatings for industrial water-based lacquered wind towers co-sponsored by the Wind Energy Professional Committee of the China Renewable Energy Society, the Wind Energy Equipment Branch of the China Agricultural Machinery Industry Association and the Wind Energy Magazine in Beijing, the Secretary-General of the Wind Energy Equipment Branch of the Agricultural Machinery Industry Association, Yu Hesheng, said that Recently, the Ministry of Industry and Information Technology and the Ministry of Finance issued a special letter on the serious problem of China's air pollution situation to speed up the reduction of organic compounds in industrial enterprises, including the promotion of the use of low or non-volatile organic compounds coating products, promote industrial green development, promote the improvement of the quality of the atmospheric environment, to protect human health. As a clean energy wind power generation, it is the responsibility to achieve green manufacturing, control VOCs emissions, and actively fulfill environmental responsibilities. On the one hand, the trend of green and low carbon has been irreversible, which is the consensus of all countries in the world, on the other hand, in view of the current serious situation of air pollution prevention and control, speeding up the reduction of VOCs in industrial enterprises is of great significance to promote the green development of industry, promote the improvement of the quality of the atmospheric environment and safeguard human health. In this context, it was learned that the Ministry of Industry and Information Technology, the Ministry of Finance recently jointly issued the "key industries volatile organic matter reduction action plan."
the Plan clearly states that industry is the focus area for VOCs emissions, which account for more than 50 per cent of total emissions. By 2018, VOCs emissions from the industrial sector will be reduced by more than 3.3 million tons compared to 2015, reducing the use of solvents and additives such as benzene, toluene, methamphetamine (DMF) by more than 20%, and reducing the proportion of green pesticide preparations, coatings, inks, adhesives and tire products in low (none) VOCs by 70%, 60%, 70%, 85% and 40%, respectively. It is worth noting that the Plan also clearly states that in the future, the focus will be on the promotion of water-based coatings, powder coatings, high solid sub-coatings, solvent-free coatings, radiation curing coatings (UV coatings) and other green paint products. Raven, Director of the Environmental Protection Department of the Department of Energy Conservation and Integrated Utilization of the Ministry of Industry and Information Technology, believes that without green development, it is impossible for a strong country to achieve green development before a strong country. Wind energy is a green energy, with the supporting equipment and technology must also require that it must be green, water-based industrial paint can effectively promote wind power equipment green environmental protection. This view is in line with Qin Haiyan, secretary-general of the Wind Energy Professional Committee of the China Renewable Energy Association. Qin Haiyan said that although wind power is clean energy, there are still some pollution problems in the equipment production process. The promotion of water-quality paint is to hope that the entire industry from equipment production, application to end products are practiced clean green concept. Influenced by the increasing number of good policies, China's wind power industry continued last year's surge.
The State Energy Administration recently released the "first half of 2016 wind power grid operation" shows that in the first half of this year, China's wind power new grid capacity of 7.74 million kilowatts, by the end of June, the cumulative grid capacity reached 137 million kilowatts, the cumulative grid capacity increased by 30% year-on-year, the growth rate is quite obvious. The rapid development of wind power industry has also brought new opportunities to the development of related industries, paint is one of them. Wang Aimin, chief engineer of Hua Leopard (Tianjin) Coatings Co., Ltd., believes that, on the one hand, wind power coatings are supporting industries, but the impact on the wind power industry should not be underestimated. According to the preliminary plan, the future installed capacity of wind power is expected to reach 2 to 250 million kilowatts, wind power equipment market will be as high as 140 to 210 billion yuan, the development prospects are good; One participant said that the current corrosion of materials, structural parts and equipment will indeed bring greater economic losses. Specifically, wind turbine systems can be eroded by a variety of harsh environments due to the fact that wind power plants are mostly built in uninhabited areas such as deserts and are large in wind and dust. At the same time, offshore wind power has long been affected by water vapor, salt spray erosion and waves, prone to corrosion problems, so we must rely on anti-corrosion coatings to ensure the safe operation of equipment and the continuation of life.
Wu Zhanhai, Minister of Jinfeng Science and Technology, believes that because corrosion is a slow process, the long-lasting anti-corrosion performance of the coating must be guaranteed, which requires that the laboratory stage data and the evaluation of the later effects must be well-founded, especially the in-depth research and development of water-based paint can not be interrupted. "Oil" to "water" is an immedic trend, relevant data show that more than 90% of the global wind power industry is using solvent-based coatings as anti-corrosion coatings. Although the technology has been very mature, but the pollution of the environment, human health hazards and in the process of production and transportation, the existence of safety hazards is also an unavoidable fact. In contrast, industry experts at the meeting said that water-based environmental protection coating water as a dispersion medium and thinner, the raw materials used in the coating is non-toxic and harmless, so the coating is also non-toxic and non-polluting. The biggest difference between this coating and solvent-based coating is the use of water as a solvent, which greatly reduces the emission of volatile gases from organic solvents. As one of the most common resources, freshwater resources greatly simplify the process of coating dilution. At the same time, the new functional material is very easy to transport and store, these characteristics are organic solvent coatings can not be compared. According to Wang, the footprints of water-colored paint can be traced back to the 1980s. After more than 30 years of continuous development, the performance of water-like paint is also constantly improving, has reached the requirements. Paint industry in the next five years planning clearly put forward the "innovation and development, coordinated development, advantage development, green development" approach,
wind power green coating link water-based development trends - according to China Paint Onlineexperts, by 2020, cost-effective, environmentally friendly coatings to account for 57% of the total. All the above indications show that the hydration of the coating process is an unchangeable trend. "At present, some eastern provinces have gradually introduced their own rules, which include sewage charges or VOCs emissions tax rates. As we can see, Beijing launched on October 1, 2015, a punitive rate of up to 40 yuan per kg of VOCs emissions, including the city's final rate of 20 yuan per kg on January 1, 2017. "Hansen Chemical Enterprise Management (Shanghai) Co., Ltd. paint civil engineering account manager Zhang Ran also said that from various signs of analysis, the final cost of the use of solvent-based coatings is likely to increase significantly, and even in this regard, the levy may exceed the value of the paint itself. Therefore, measures in this regard, for the development of water-based coatings may be an opportunity. However, although the development prospects of water-like paint is good, but for the current water-like paint in the wind power industry in the promotion of specific problems encountered, the certification center wind energy division parts minister Li Haoran also pointed out that although in the fan tower and other equipment has been the use of water-specific paint cases, but a large number of water-specific paint products in the wind power industry in the specific applications also need to be further verified and standardized by technical means.
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