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Abstract：
Energy problems have become increasingly prominent. The use of thermal insulation materials is an effective measure to save energy. As an efficient energy-saving material, nanocellulose aerogels have broad application prospects. However, nanocellulose aerogels have problems such as poor mechanical properties, high flammability, and they easily absorbs water from the environment. These defects restrict their thermal insulation performance and severely limit their application. This review analyzes the thermal insulation mechanism of nanocellulose aerogels and summarizes the methods of preparing them from biomass raw materials. In addition, aiming at the inherent defects of nanocellulose aerogels, this review focuses on the methods used to improve their mechanical properties, flame retardancy, and hydrophobicity in order to prepare high-performance thermal insulation materials in line with the concept of sustainable development, thereby promoting energy conservation, rational use, and expanding the application of nanocellulose aerogels.
摘要：
能源问题日益突出。使用保温材料是节约能源的有效措施。作为一种高效的节能材料,纳米纤维素气凝胶具有广阔的应用前景。然而,纳米纤维素气凝胶存在机械性能差等问题，高可燃性，它们很容易从环境中吸收水分。这些缺陷限制了它们的隔热性能，严重限制了它们的应用。本文分析了纳米纤维素气凝胶的隔热机理，并总结了由生物质原料制备纳米纤维素气凝胶的方法。此外,针对纳米纤维素气凝胶的固有缺陷，本文重点介绍了提高其机械性能的方法，阻燃性,和疏水性，以制备符合可持续发展理念的高性能保温材料，从而促进节能，合理使用,拓展纳米纤维素气凝胶的应用。
