Textiles are one of the basic needs of humankind. Although textiles satisfy many human needs, they are implicated in the loss of life and property since many fibers and fabrics are inflammable. Many chemical finishes are applied to improve the flame resistance of textile materials. Unfortunately, most of the flame retardants are synthesized chemically, need large quantities to be used, cause adverse impact on the textiles and also expensive. In this research, a novel approach to using DNA from herring sperm as flame retardant for cotton was explored. Surface of the textiles was modified with citric acid to increase free carboxyl content and hence absorption of DNA. It was observed that DNA was absorbed into the cotton fabrics using chemical adsorption according to the quasi-second-order-kinetic model. Flammability of the cotton before and after the addition of DNA was checked. It was observed the length of fabrics damaged due to flames was only 29 mm compared to the original length of 350 mm. Such a high increase in flame resistance has not been reported for natural materials. In addition, the chemical reaction between DNA and cotton fabric can improve the flame retardant–washing resistance of the finished cotton fabric. In this article, the strategy of using biological macromolecules to flame-retardant fabrics can provide research basis for the design and development of efficient and environmentally friendly flame retardants.

中文翻译：

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使用 DNA 赋予柠檬酸改性棉织物阻燃性

纺织品是人类的基本需求之一。尽管纺织品满足了人类的许多需求，但由于许多纤维和织物是易燃的，因此它们会导致生命和财产损失。许多化学整理剂用于提高纺织材料的阻燃性。遗憾的是，大多数阻燃剂都是化学合成的，需要大量使用，对纺织品造成不利影响，而且价格昂贵。在这项研究中，探索了一种使用鲱鱼精子 DNA 作为棉花阻燃剂的新方法。纺织品表面用柠檬酸改性，以增加游离羧基含量，从而增加 DNA 的吸收。根据准二级动力学模型，观察到使用化学吸附将 DNA 吸收到棉织物中。检查加入DNA前后棉花的可燃性。据观察，由于火焰损坏的织物长度仅为 29 毫米，而原始长度为 350 毫米。对于天然材料，还没有报道过如此高的阻燃性增加。此外，DNA与棉织物的化学反应可以提高棉织物成品的阻燃耐洗性。本文将生物大分子应用于阻燃织物的策略可为高效环保阻燃剂的设计和开发提供研究依据。对于天然材料，还没有报道过如此高的阻燃性增加。此外，DNA与棉织物的化学反应可以提高棉织物成品的阻燃耐洗性。本文将生物大分子应用于阻燃织物的策略可为高效环保阻燃剂的设计和开发提供研究依据。对于天然材料，还没有报道过如此高的阻燃性增加。此外，DNA与棉织物的化学反应可以提高棉织物成品的阻燃耐洗性。本文将生物大分子应用于阻燃织物的策略可为高效环保阻燃剂的设计和开发提供研究依据。