纺织学报 ›› 2019, Vol. 40 ›› Issue (10): 120-126.doi: 10.13475/j.fzxb.20180907707

• 染整与化学品 • 上一篇    下一篇

氧化石墨烯协同TiO2/SiO2改性涤/棉织物的抗菌持久性与服用性

高晶(), 张俊, 赵泽阳, 李婉迪, 王佳珺, 王璐   

  1. 东华大学 纺织学院, 上海 201620
  • 收稿日期:2018-09-29 修回日期:2019-07-05 出版日期:2019-10-15 发布日期:2019-10-23
  • 作者简介:高晶(1978—),女,教授,博士。主要研究方向为功能纺织面料纳米改性与性能评价。E-mail: gao2001jing@dhu.edu.cn。
  • 基金资助:
    国家卫生计生委重大疾病防治科技行动计划—创伤修复专项资助(2017ZX01001-S22)

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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摘要：

为解决单一TiO2改性涤/棉织物在可见光下光催化效率低、抗菌活性弱且不持久等问题,采用氧化石墨烯协同TiO2/SiO2掺杂复合改性涤/棉织物。利用场发射显微镜、明暗条件下的抗菌性实验、纺织品色牢度实验、拉伸断裂测试和弯曲性能测试等手段对复合改性前后织物的微观形貌、抗菌性及抗菌持久性、服用性能等进行分析评价。结果表明:在可见光下,TiO2/SiO2/氧化石墨烯复合改性织物表面纳米粒子涂覆均匀,抑菌率在99%以上,复合改性织物在15次水洗后其抑菌率仍保持为98.5%;虽然改性后织物的拉伸断裂性能、透气性能、手感等都有一定程度的损失,但损失影响不大。

关键词: TiO2, SiO2, 氧化石墨烯, 复合改性, 涤/棉织物, 抗菌性, 服用性

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

中图分类号: 

  • TS195.6

图1

织物的FE-SEM照片"

图2

织物培养皿中细菌残余数 a-1—黑暗条件下空白织物;b-1—黑暗条件下TiO2改性织物;c-1—黑暗条件下TiO2/SiO2/GO复合改性织物;a-2—可见光条件下空白织物;b-2—可见光条件下TiO2改性织物; c-2—可见光条件下TiO2/SiO2/GO复合改性织物。"

图3

不同涂层织物培养皿中细菌残余 1—黑暗条件; 2—可见光条件。"

表1

TiO2/SiO2/GO复合改性织物洗涤后抗菌性能"

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

表2

光照前后织物的断裂强力与断裂伸长"

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

表3

织物的弯曲性能"

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

表4

织物的表面特性"

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

图4

光照前后织物的白度"

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