Polyester-cotton fabrics (PCFs) combine the advantages of polyester and cotton, offering durability, moisture absorption, and breathability, making them widely used in workwear, home decoration, and other applications. However, the flammability of PCFs limits their use in certain areas. In this work, we develop a two-step flame-retardant modification process through Michael addition and prepolymerization reactions. Using a simple two-step chemical modification, we produce PCFs with excellent flame-retardant properties. The modified PCFs achieved a limiting oxygen index of 32.7, demonstrating good flame resistance. During combustion, the flame-retardant PCFs can generate a large amount of noncombustible gases and phosphorus-containing substances, forming a uniform carbon layer on the fabric’s surface, thereby exhibiting superior flame-retardant property. The flame-retardant modification process developed in this work uses water as the solvent throughout, making it environmentally friendly and providing a new approach for the functional modification of cellulose-containing fabrics.

中文翻译：

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可持续、可扩展且高度阻燃的含纤维素织物


涤棉织物 （PCF） 结合了涤棉的优点，具有耐用性、吸湿性和透气性，使其广泛用于工作服、家居装饰和其他应用。然而，PCF 的易燃性限制了它们在某些领域的使用。在这项工作中，我们通过 Michael 加成和预聚合反应开发了一种两步阻燃改性工艺。使用简单的两步化学改性，我们生产出具有出色阻燃性能的 PCF。改性后的 PCFs 实现了 32.7 的极限氧指数，表现出良好的阻燃性。阻燃 PCF 在燃烧过程中可产生大量不燃气体和含磷物质，在织物表面形成均匀的碳层，从而表现出优异的阻燃性能。这项工作开发的阻燃改性工艺全程使用水作为溶剂，使其对环境友好，并为含纤维素织物的功能改性提供了一种新方法。