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It is worth looking forward to the introduction of environmental friendly water-based coatings into the industrial field

introduction of environmental friendly water-based coatings 5 Click the analysis button on the software. The industrial field is worth looking forward to

October 28, 2009

[China coating information] on October 22, the "water-based platform" composed of 13 domestic and foreign water-based coating raw material supply and production enterprises and research institutions was officially unveiled in Beijing. The organization said that it would promote the R & D and production capacity of relevant domestic enterprises through technical support, so as to speed up the promotion and application of water-based coatings in the industrial field. The relevant person in charge of the Ministry of environmental protection pointed out that at present, solvent based coatings still occupy a leading position in China's industrial field, and their environmental hazards continue. The promotion of water-based coatings is undoubtedly of great significance to solve the VOC (volatile organic compounds) emission in the process of coating production and construction. However, due to the inherent concept and the lack of standards, the VOC emission reduction of water-based coatings still has a long way to go

according to the data provided by the organization, at present, about 22million tons of VOC are discharged into the air in China, increasing at an average annual rate of 9%. In the total emission of VOC, industrial solvents account for about 30%, becoming one of the main emission sources. The VOC emissions of coatings and adhesives account for about 70% of industrial solvents, and the total annual emissions reach 4million tons. In recent years, reducing the VOC emission of coatings has been the focus of the industry. Reducing the proportion of industrial solvents in coatings has also become the focus of R & D on processes and talents. The application of water-based coatings and other products makes it possible to solve this problem. In fact, the Chinese market is not unfamiliar with the word "water-based". In 1996, German Dufang paint entered the Chinese market, ending the history of China without water-based paint. At present, in the domestic market, water-based coatings have emerged in civil areas such as home decoration, but the promotion is still not extensive; In the industrial fields of automobile manufacturing, electronic products, textiles and communication products, it can provide better waterproof performance and long-term reliability than traditional sealing schemes, and the progress is slow

according to peizhonghua, general manager of Greater China of DSM Likang resin, the application of water-based paint products in China's industrial field is still very few, accounting for only 5% to 10% of the total amount of industrial paint, which is far lower than 30% to 40% in Europe and the United States. China still has a long way to go in promoting water-based coatings. Li Xilin, general manager of Bayer coatings, adhesives and special chemicals in Greater China, believes that the difficulty of promoting water-based coatings in China lies in the fact that the regulations and policies of the coating industry are still very limited in the embodiment of the concept of environmental protection. At present, some laws and regulations implemented are far out of date, and many small and medium-sized coating manufacturers still have certain obstacles in mastering and developing water-based technologies. In addition, due to the reasons of people's inherent concepts, and many enterprises have reached a level of considerable proficiency in the construction of solvent based coatings, according to the British Independent on April 22, while the construction of water-based coatings is in a negative or slow state

Huang Jinyan, President of Hong Kong Yeshi Chemical Group Co., Ltd., believes that water-based coatings have become the trend of the development of the world's coating industry. The proportion of scientific research on water-based coatings is increasing, and more and more technical achievements have been made, and the technical level is getting higher and higher. At present, the performance of domestic water-based coatings can fully reach the level of solvent based coatings

at present, the main reason hindering the promotion and application of water-based coatings is the lack of standards. Therefore, China should introduce relevant support policies as soon as possible and establish the corresponding standard system - this is the consensus reached by 13 enterprises, who believe that this is an important driving force for the promotion of water-based coatings. Qian birong, chief engineer of CNOOC Changzhou paint research institute, believes that many brands in the market are marking "zero" VOC. In fact, this statement is very unscientific. Because "not detected" in the test report can only indicate that its content is lower than the detection limit of the test standard used, and cannot be interpreted as "zero". When using more advanced detection methods, it can still be detected. In addition, there is no real standard basis for the statements of "zero VOC", "ultra-low VOC" and "low VOC" coatings on the market at present

experts said that in Europe and the United States, the increasingly stringent VOC emission standards have led to changes in the entire coating and adhesive industry. Through technological upgrading, enterprises are looking for ways to effectively reduce VOC emissions while ensuring product performance. Foreign coating industry is in an important period of technological progress. The strengthening of environmental protection regulations has promoted the adjustment of coating product structure. Traditional solvent based coatings are gradually decreasing, while high-performance, low pollution waterborne coatings are growing rapidly. Nowadays, environmentally friendly water-based coatings and adhesives have been widely used in developed countries and have penetrated into various fields. International research shows that from 1990 to 2003, the total VOC emissions of the coating industry in Europe fell by 28%

since 2001, China has formulated two standards for the coating industry - GB18581 and gb18582, which have played an important role in promoting the technological development of the coating industry. According to Qian birong, the current project to establish a standard system for low pollution coatings in China stipulates that relevant provisions will be made from specific products to raw materials, to solvents in the future. The introduction of these regulations and standards requires enterprises to constantly carry out technological innovation, and also provides top-down policy support for VOC emission reduction in the coating industry

the relevant person in charge of the Ministry of Environmental Protection said that from the perspective of national policy makers, VOC should be controlled as an important environmental element and the corresponding environmental standards should be improved. At present, many domestic enterprises' products have not reached the international advanced level, but VOC will definitely be put forward as a control factor in the future

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