Abstract To endow waterborne polyurethane (WPU) with bright color and improve the flame retardancy, a series of flame-retardant and colorful WPU (DOWPU) was synthesized by incorporating anthraquinone chromophore (DV26) and phosphorus-containing flame-retardant (OP550) into the skeleton simultaneously. The migration property, thermal performance and flame retardancy of DOWPU were systematically characterized by a series of experiments, showing that DOWPU was endowed with bright color and satisfactory flame retardancy. Interestingly, the synergistic effect between DV26 and OP550 made the char yield of DOWPU as high as 25.14 %, which increased the limiting oxygen index by 8.1 %. Furthermore, the migration percentage of DOWPU was only 3.9 %, which was attributed to the strong covalent bonding force between DV26 and polymer chains. Additionally, we coated DOWPU on the polyester fabrics to prove the practicality. The coated fabrics not only had bright colors, but also exhibited excellent color fastness and flame retardancy.

中文翻译：

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一种具有优异阻燃性能的含磷水性聚氨酯聚合物染料的合成与应用

摘要 为了赋予水性聚氨酯（WPU）鲜艳的色彩并提高其阻燃性，将蒽醌发色团（DV26）和含磷阻燃剂（OP550）加入到水性聚氨酯（WPU）中，合成了一系列阻燃、多彩的水性聚氨酯（DOWPU）。骨架同时。通过一系列实验系统地表征了DOWPU的迁移性能、热性能和阻燃性，表明DOWPU具有鲜艳的色泽和令人满意的阻燃性。有趣的是，DV26 和 OP550 之间的协同效应使 DOWPU 的炭产率高达 25.14%，使极限氧指数提高了 8.1%。此外，DOWPU 的迁移百分比仅为 3.9%，这归因于 DV26 与聚合物链之间的强共价键合力。此外，我们在涤纶面料上涂上了DOWPU，以证明其实用性。涂层织物不仅具有鲜艳的色彩，而且还表现出优异的色牢度和阻燃性。