Journal of Textile Research ›› 2019, Vol. 40 ›› Issue (10): 120-126.doi: 10.13475/j.fzxb.20180907707

• Dyeing and Finishing & Chemicals • Previous Articles     Next Articles

Antibacterial durability and wearability of polyester/cotton fabric modified collaboratively by graphene oxide and TiO2/SiO2

GAO Jing(), ZHANG Jun, ZHAO Zeyang, LI Wandi, WANG Jiajun, WANG Lu   

  1. College of Textiles, Donghua University, Shanghai 201620, China
  • Received:2018-09-29 Revised:2019-07-05 Online:2019-10-15 Published:2019-10-23

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Abstract:

In order to solve the low photocatalytic efficiency, weak antibacterial activity and poor endurability of polyester/cotton fabrics modified by TiO2 under visible light, polyester/cotton fabrics were modified by the combination of graphene oxide(GO) and TiO2/SiO2. A field-emission microscope, antibacterial experiments in light and dark condition, color fastness of textiles, tensile fracture and flexural properties tests were adopted to analyze and evaluate micro-morphologies, antimicrobial properties and antibacterial durability, wearability of fabrics before and after the combined modification. The experimental results show that the nanoparticles dispersed uniformly and coated on the fabrics modified by GO and TiO2/SiO2 and the antibacterial rate of composite modified fabrics is over 99% under visible light. After 15 times of washing, the antibacterial rate of the composite modified fabrics is 98.5%. Meanwhile, the process has no significant negative effect on the tensile breaking properties, air permeability and hand feeling of the modified fabric.

Key words: TiO2, SiO2, graphene oxide, combinded modification, polyester/cotton fabric, antimicrobial property, wearability

CLC Number: 

  • TS195.6

Fig.1

FE-SEM images of fabrics. (a) Blank fabric(×200); (b) Fabric modified by TiO2(×200);(c) Fabric modified by TiO2/SiO2/GO (×200);(d) Blank fabric(×5 000);(e)Fabric modified by TiO2(×5 000);(f) Fabric modified by TiO2/SiO2/GO (×5 000)"

Fig.2

Bacterial residues in fabric culture dish"

Fig.3

Bacterial residues in different coated fabric culture dishes. (a)Blank fabric;(b) Fabric modified by TiO2; (c)Fabric modified by TiO2/SiO2/GO"

Tab.1

Antibacterial properties of fabric modified by TiO2/SiO2/GO after washing"

洗涤次数 对大肠埃希菌 对金黄色葡萄球菌
0 100.0 99.8
5 99.5 99.3
10 99.2 99.0
15 99.0 98.5

Tab.2

Breaking strength and breaking elongation before and after illumination"

样品 光照前 可见光照射12 h
断裂
强力/
N		 强力
CV
值/%		 断裂
伸长/
mm		 伸长
CV
值/%		 断裂
强力/
N		 强力
CV
值/%		 断裂
伸长/
mm		 伸长
CV
值/%
未改性织物 780.2 2.7 15.7 5.1 778.3 3.2 15.2 4.2
TiO2改性
织物		 732.1 7.9 13.7 3.5 730.5 6.8 12.8 5.2
TiO2/SiO2/
GO改性
织物		 745.2 5.8 15.0 3.2 738.2 6.5 13.5 3.4

Tab.3

Flexural properties of fabrics 10-2cN·cm·cm-1"

样品 弯曲刚度 弯曲滞后矩
未改性织物 1.78±0.07 2.66±0.28
TiO2改性织物 1.95±0.10 2.59±0.18
TiO2/SiO2/GO
复合改性织物		 1.86±0.04 1.80±0.04

Tab.4

Surface characteristics of fabrics"

样品 SMD/μm MIU MMD
未改性织物 3.315 ± 0.012 0.162 ± 0.004 0.010 ± 0.001
TiO2改性织物 3.638 ± 0.023 0.172 ± 0.008 0.012 ± 0.001
TiO2/SiO2/
GO改性织物		 3.628 ± 0.015 0.176 ± 0.007 0.014 ± 0.002

Fig.4

Whiteness of fabric before and after illumination"

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