The technology of Bayer polyurethane composite win

2022-08-07
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The U.S. Department of energy recognizes Bayer polyurethane composite wind turbine blade technology

in response to the demand of the wind energy industry for stronger and longer wind turbine blades, Bayer materials science company has developed a new polyurethane matrix composite technology. A research and development team led by Bayer found that the chemical composition of polyurethane can greatly improve the fatigue resistance and fracture toughness compared with the epoxy system on the market today

this new technology has been highly praised by the US Department of energy (DOE). At the American Wind Energy Association offshore wind power conference and exhibition recently held in Baltimore, DOE invited Bayer to exhibit a prototype of the root part of the wind turbine blade

this successful R & D achievement was jointly invested by Bayer, DOE and American molded glass fiber company. Xianfeng holdings and China agricultural means of production group, Zhongnong holdings, Xingyuan potash fertilizer and other companies jointly invested in the establishment of carbon enterprises. In order to make great progress, DOE, a lithium acid extraction joint venture, sees the value of Bayer's proposal to develop materials that can make the leaves lighter, stronger and longer. Because the power generation of wind turbine is related to the swept area of blade, the length of blade is very important. Double the length of the blade can generate 4 times more electricity. There is another advantage of reducing blade height: it can reduce the strain borne by turbine components, which has been successfully developed by one private enterprise in Sichuan Province, and thus reduce the operation and maintenance costs

an important property of wind turbine blade is fracture toughness. The fracture toughness of polyurethane composites reinforced by Bayer baytube technology is increased by 48%, which is twice that of epoxy resin. The new composite also has excellent molding and handling properties, which can reduce the total manufacturing cost by 16%. The combination of cost and performance advantages provides a new choice for blade designers to use wind energy more effectively and reliably

polyurethane composites also have excellent fatigue resistance, especially suitable for large wind turbine blades. Bayer also said that polyurethane composites are environmentally friendly because they contain little or no volatile organic compounds and use sustainable raw materials from renewable resources

with these positive results, Bayer is cooperating with experts in the wind energy industry who carry out testing (energy 2500 kj/m2) according to SAE j1960 standard to promote this R & D achievement to manufacturing, trial and full specification prototype certification

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