Polyurethane (PU), invented in 1937 by Otto Bayer, evolved from a solution for rubber shortages into a critical industrial material for insulation, cushioning, and more. Its unique properties stem from a reaction between polyols and isocyanates, resulting in a versatile foam used widely in construction, automotive, and refrigeration. However, PU's durability and resistance to biodegradation pose significant environmental challenges. In response, companies like Purman are pioneering recycling efforts to mitigate PU waste and promote sustainable usage. Overall, while PU has revolutionized various sectors, its environmental impact remains a pressing issue.
Despite its versatility, PU foam comes with serious environmental challenges due to its non-biodegradable nature and high durability. Millions of tons of rigid PU foam are produced annually.
PU is made by reacting polyols and isocyanates, which generates heat and, in the presence of expansion agents such as water or gases, creates bubbles that cause the material to expand.
Its flexibility allowed PU to revolutionize industries with products like insulation and padding, prominently featuring in sectors like construction, automotive, and refrigeration.
Companies like Purman are leading the charge in recycling PU waste, helping to reduce its environmental impact while promoting more sustainable alternatives.
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