Insight into multifunctional polyester fabrics finished by one-step eco-friendly strategy
Insight into multifunctional polyester fabrics finished by one-step eco-friendly strategy
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一步一步环保策略打造多功能涤纶面料洞察
DOI：
10.1016/j.cej.2018.10.070
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发表时间：
2019-02-15
影响因子：
15.1
通讯作者：
Huang, Peng
中科院分区：
文献类型：
--
作者：
Chen, Shiguo;Zhang, Shaobo;Huang, Peng
聚对苯二甲酸乙二酯（PET）具有良好的力学性能、易加工性和快干性，在纺织品中得到了广泛的应用。然而，基于PET的产品总是遭受不舒服的低汗液吸收和静电电荷积聚，这主要是由于其差的表面润湿性。此外，多孔织物可能会导致不利的螨和微生物繁殖。由于PET骨架上缺乏活性基团，用常规方法很难赋予其表面亲水性、抗静电性、持久的抗菌性和防螨性。本研究以二苯甲酮基季铵盐（BP-QAS）为整理剂，通过光化学反应，对涤纶织物进行一步环保整理。整理后的PET纤维由松散状态转变为紧密状态，这是由于单个纤维内部的内聚力增加，从而导致撕裂强度提高。PET织物显示出显著改善的亲水性和抗静电性能。此外，整理后的PET织物对革兰氏阴性、革兰氏阳性、耐药细菌和真菌表现出优异、持久的广谱抗菌活性。此外，我们的织物在50次洗涤循环后仍显示出超过AAA要求的持久抗菌性能。普通PET织物在10次洗涤循环后通常难以达到AAA标准。此外，我们所制备的织物显示出优异的抗螨活性，对屋尘螨的基础上，由于氧化应激的微生物和螨膜的破坏，而没有观察到对小鼠和兔的负面影响。成品PET织物可应用于多个行业，以预防传染病和改善公众健康，包括但不限于包装，服装，水处理和医疗器械。
Polyethylene terephthalate (PET) has been widely used in fabrics owing to its great mechanical properties, easy processability and quick drying. However, PET-based products always suffer from uncomfortable low sweat uptake and electrostatic charge buildup mainly due to its bad surface wettability. Moreover, porous fabrics may induce unfavorable mite and microorganism reproduction. Due to lack of reactive groups on the PET skeleton, it was very difficult to endow its surface hydrophilicity, antistatic properties, perdurable antimicrobial and anti-mite properties by conventional methods. In this work, we develop a one-step eco-friendly finishing strategy for PET fabrics through photochemical reaction using benzophenone group terminated quaternary ammonium salt (BP-QAS) as the finishing reagent. The as-finished PET fibers changed from incompact state to compact state due to the increased cohesive forces within individual fibers, resulting in improved tearing strength. The PET fabrics show significantly improved hydrophilicity, and antistatic properties. Furthermore, the as-finished PET fabrics exhibit excellent, durable broad-spectrum antimicrobial activities against gram-negative, gram-positive, drug-resistant bacteria and fungi. Moreover, our fabric shows long-lasting antimicrobial properties above AAA requirements after 50 laundering cycles. Usual PET fabrics generally have difficulty achieving AAA standards after 10 laundering cycles. In addition, our as-prepared fabrics showed excellent anti-mite activities against house dust mites based on disruption of the microbial and mite membrane due to oxidation stress, while no negative effects were observed for mouse and rabbit. The finished PET fabrics can be applied to multiple industries to prevent infectious diseases and improve public health, including but not limited to packaging, clothes, water treatment, and medical appliances.