Time：2018/9/14 Check：141
Since 1966, the United States, California enacted the first limit the volatile organic compounds (VOC) law, to strictly control the VOC emissions, high limit the production and use of VOC coating product, has been promoted to the height of the laws and regulations, water-based coating because of its low VOC and save energy and become the mainstream of modern coatings industry development direction. The main types of water-based coatings: water-based polyester, water-based acrylic, water-borne polyurethane coatings. Water-based coatings is the current rapid development of environmentally friendly coatings, but in Asia use ratio is extremely low, only 3% 42% (Europe), our country and developed countries in the field of waterborne coatings gap is very big. Investigate its before reasons of slow development of ability for two aspects: first, water-based coating performance cannot reach solvent products; Second, investment in the production and use of water-based coatings is higher, if need drying room, cold equipment, production site temperature and humidity control equipment, etc.
Now we analyze the feasibility of waterborne coatings, and first of all, the quality improvement of waterborne resin is good, can made high performance of water-based coating; Second, establish new water production line, or to the existing equipment material instead of stainless steel or plastic material, it is also possible. In the process of waterborne, reduce pollution control costs, reduce material consumption, security operation personnel health, etc., can get returns in the short term.
national economy of pillar industry in our country, is second to the architectural paint coating. For release on September 31, 2009, June 1, 2010 implementation of GB24409-2009 "car paint harmful material set limit to", advocate environmental protection is the idea of a concrete embodiment, but also accelerated the automobile coating process waterborne. In recent stage, auto paint has a lot of application examples, the major advanced auto makers has achieved some waterborne coating production, especially in the electrophoresis paint, automobile paint, solid color paint, paint coating, water-based automotive paint that performance has conform to the requirements of the production, is also a big progress of waterborne coatings.
Polyester by its excellent flexibility and high workability and so on many aspects of advantages, has been in the automotive paint, industrial paint, coil printing paint, and other fields with a larger share, water-based polyester not only inherited the advantages of the oily polyester, even in some performance beyond the solvent products. In recent years, a jump in oil prices, the cause of solvent-based paint around the price rising, some even is higher than the price of water-based paint, this kind of situation from the side also boosted the development of water-based paint, make some of the water-based coating the exciting best-selling situation, this is a rare opportunity for the development of water-based coatings.
