Polypropylene as one of the world's top commodity polymers is also widely used in the textile industry. However, its non-polar nature and partially crystalline structure significantly complicate the process of industrial coloring of polypropylene. Currently, textiles made of polypropylene or with a significant proportion of polypropylene are dyed under quite harsh conditions, including the use of high pressures and temperatures, which makes this process energy intensive. This research presents a three-step synthesis of coloring agents, capable of adhering onto synthetic polypropylene yarns without harsh energy-consuming conditions. This is possible by encapsulation of organic pigments using trimethoxyphenylsilane, introduction of surface double bonds via modification of the silica shell with trimethoxysilylpropylmethacrylate and final attachment of highly adhesive anchor peptides using thiol-ene chemistry. We demonstrate the applicability of this approach by dyeing polypropylene yarns in a simple process under ambient conditions after giving a step-by-step guide for the synthesis of these new dyeing agents. Finally, the successful dyeing of the yarns is visualized, and its practicability is discussed.

中文翻译：

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有机染料锚定肽偶联物作为聚丙烯纱线的高级着色剂

聚丙烯作为世界顶级商品聚合物之一，也广泛用于纺织工业。然而，其非极性和部分结晶结构使聚丙烯的工业着色过程显着复杂化。目前，由聚丙烯或大量聚丙烯制成的纺织品在非常苛刻的条件下染色，包括使用高压和高温，这使得该过程需要大量能源。这项研究提出了着色剂的三步合成，能够在没有苛刻的能源消耗条件的情况下粘附在合成聚丙烯纱线上。这可以通过使用三甲氧基苯基硅烷封装有机颜料来实现，通过用甲基丙烯酸三甲氧基甲硅烷基丙酯修饰二氧化硅壳引入表面双键，并使用硫醇 - 烯化学最终连接高粘性锚定肽。我们在给出这些新染色剂合成的分步指南后，通过在环境条件下以简单的工艺染色聚丙烯纱线来证明这种方法的适用性。最后，对纱线的成功染色进行了可视化，并讨论了其实用性。