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Bicomponent multifilament yarns of recycled poly(ethylene terephthalate) and nano-titanium dioxide for antibacterial carpet
Journal of Industrial Textiles ( IF 3.2 ) Pub Date : 2021-05-06 , DOI: 10.1177/15280837211011774
Sommai Pivsa-Art 1 , Komson Sunyikhan 1 , Weraporn Pivsa-Art 1
Affiliation  

Recycled poly(ethylene terephthalate) (RPET) multifilament yarns are used in carpet manufacturing as a way to reduce plastic waste. The conventional RPET carpet is however susceptible to bacterial accumulation. As a result, this research experimentally doped RPET with nano-structure titanium dioxide (nano-TiO2) to produce RPET/nano-TiO2 bicomponent multifilament yarns with antibacterial property. The experimental multifilament yarn structure consisted of two parts: neat RPET core and RPET/nano-TiO2 shell. The nano-TiO2 content in the shell was varied between 1 and 3 wt% and the core/shell (C/S) ratios between 90/10, 70/30, and 50/50 w/w. The effects of C/S ratio and nano-TiO2 content on the mechanical and antibacterial properties of bicomponent multifilament yarns were determined. The experimental results indicated that the C/S ratio had no effect on the tenacity and elongation at break. Meanwhile, the tenacity and elongation at break of bicomponent fibers increased with nano-TiO2 content in the shell. The TiO2-doped RPET bicomponent yarns effectively inhibited the growth of Escherichia coli and Staphylococcus aureus. The 90/10 bicomponent multifilament fiber with 3 wt% TiO2 achieved the highest antibacterial activity. The very high antibacterial activity was attributable to greater deposition of nano-TiO2 particles near and on the shell surface.



中文翻译:

再生聚对苯二甲酸乙二醇酯和纳米二氧化钛的双组分复丝抗菌地毯

再生聚对苯二甲酸乙二酯(RPET)复丝纱线用于地毯生产,以减少塑料浪费。然而,常规的RPET地毯易受细菌积聚的影响。结果,本研究实验性地将RPET掺入了纳米结构的二氧化钛(nano-TiO 2),以生产具有抗菌性能的RPET / nano-TiO 2双组分复丝。实验性复丝结构由两部分组成:纯RPET芯和RPET /纳米TiO 2壳。壳中的纳米TiO 2含量在1-3 wt%之间变化,核/壳(C / S)比在90 / 10、70 / 30和50/50 w / w之间。C / S比和纳米TiO 2的影响测定双组分复丝纱的机械和抗菌性能中的含量。实验结果表明,C / S比对强度和断裂伸长率没有影响。同时,双组分纤维的韧度和断裂伸长率随着壳中纳米TiO 2含量的增加而增加。掺杂TiO 2的RPET双组分纱线有效抑制了大肠杆菌金黄色葡萄球菌的生长。具有3 wt%的TiO 2的90/10双组分复丝纤维具有最高的抗菌活性。极高的抗菌活性归因于纳米TiO 2颗粒在壳表面附近和壳表面的更多沉积。

更新日期:2021-05-06
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