作者：Ginger Gardiner;
作者單位：
刊名：HIGH-PERFORMANCE Composites
ISSN：1081-9223
出版年：2008-01-05
卷：16
期：6
起頁：50
止頁：57
分類號：TQ175
語種：英文
關鍵詞：
內容簡介Although short by comparison with other composites markets, the history of wind turbine blade manufacturing has been quite varied in terms of the materials and technologies used. Yet, to this point, there has been one constant: Utility-scale blades, made from prepreg or via various forms of resin infusion, have invariably involved thermoset matrices. Given the unprecedented long-term growth predictions of the market and the need to bring the cost of wind energy generation in line with other forms of electric power production, blade manufacturers are already feeling the pinch of production inefficiencies and taking measures to accelerate build rates (see "Part I," p. 42). But one aspect of thermoset molding that has remained inherently resistant to these efforts is the cure cycle. The need to avoid excessive exotherm, yet thoroughly crosslink the matrices in these massive, thick-walled molded parts necessarily imposes a limit on how fast blades can be produced. Although efforts are ongoing to improve thermoset materials (see sidebar, p. 48), several blade manufacturers are researching the use of thermoplastics in their place. Because the linear polymer chains in these inherently tough polymers are melt-processable - they do not crosslink and, therefore, require no cure cycle - thermoplastic composites offer the potential for greater production speed.
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