Journal of Textile Research ›› 2019, Vol. 40 ›› Issue (12): 86-92.doi: 10.13475/j.fzxb.20181107107

• Dyeing and Finishing & Chemicals • Previous Articles     Next Articles

Construction and properties of superhydrophobic layer of titania/fluorosilane on polyester fabric surface

XU Lin1,2,3, REN Yu1,2(), ZHANG Hongyang1,2, WU Shuangquan2, LI Ya2, DING Zhirong1, JIANG Wenwen1, XU Sijun1, ZANG Chuanfeng1   

  1. 1. School of Textile and Clothing, Nantong University, Nantong, Jiangsu 226019, China
    2. Kuangda Technology Group Co., Ltd., Changzhou, Jiangsu 213162, China
    3. Yantai TAPARAN Advanced Manufacturing Technology Co., Ltd., Yantai, Shandong 264006, China
  • Received:2018-11-29 Revised:2019-09-05 Online:2019-12-15 Published:2019-12-18
  • Contact: REN Yu E-mail:ren.y@ntu.edu.cn

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Abstract:

In order to develop polyester fabrics with water repellent, antifouling and ultraviolet resistant properties, nano-titania was formed in-situ on the polyester fabric surface by sol-hydrothermal method using tetrabutyl titanate as precursor, and then subjected to low surface energy modification by fluorosi-lane (1H,1H,2H,2H-perfluorooctyltriethoxysilane). The surface morphology, crystalline structure, surface chemical composition and surface wettability of polyester fabrics were analyzed, and the oil resistance and ultraviolet resistance of the treated polyester fabrics were tested. The results show that anatase phase titania is formed in-situ on the surface of polyester fabric, and fluorosilane is uniformly deposited on the fibers after the treatment. The water-repellent and oil-repellent properties of polyester fabrics treated with titania-fluorosilane are significantly improved. The surface water contact angle reaches 153°, and the oil-repellent grade reaches 6 grades. The average ultraviolet transmittance of ultraviolet A and ultraviolet B segments decreases to 0.37% and 0.01%, respectively.

Key words: TiO2, polyester fabric, fluorosilane, superhydrophobicity property, ultraviolet resistance, functional textiles

CLC Number: 

  • O614

Tab.1

Volume ratio of raw materials for different TiO2 sol production schemes"

方案编号 去离子水、钛酸四丁酯和无水乙醇体积比
1 5∶3∶30
2 10∶3∶30
3 15∶3∶30
4 20∶3∶30

Fig.1

Diagram of preparation of polyester fabrics modified by nano TiO2 and fluorosilanes"

Fig.2

XRD diagram of TiO2 sol, polyester fabric before and after modification with nano TiO2 and fluorosilanes"

Fig.3

SEM images of polyester fabric before and after modified by nano TiO2 and fluorosilanes(×10 000).(a) Polyester fabric; (b) Nano TiO2 modified fabric; (c) Nano TiO2 and fluorosilanes modified fabric"

Tab.2

Relative element weight of polyester surfaces%"

试样名称 C O Ti F Si
涤纶织物原样 64.68 35.32 — — —
纳米TiO2整理织物 57.59 30.09 12.32 — —
纳米TiO2-氟硅烷整理织物 54.51 30.64 11.38 3.11 0.36

Fig.4

Element distribution of polyester fabric modified with nano TiO2 and fluorosilanes"

Fig.5

FT-IR spectrum of polyester fabric before and after modification with nano TiO2 and fluorosilanes"

Fig.6

Effect of fluorosilane concentration on water contact angle of polyester fabric modified with nano TiO2 and fluorosilanes"

Tab.3

Contact angle and wetting time of hydrocarbons on polyester modified with nano TiO2 and fluorosilanes"

碳氢化合物名称 接触角/(°) 润湿时间/s
正十六烷 132 >120
正十四烷 129 >120
正十二烷 125 >120
正癸烷 124 55
正辛烷 106 16

Fig.7

Oil repellent and pollution resistance properties of polyester fabric. (a) Polyester fabric; (b) Nano SiO2 and fluorosilanes modified polyester fabric"

Fig.8

UV-vis spectra of polyester fabrics"

Tab.4

UV transmittance of polyester fabrics modified by nano TiO2 and fluorosilanes"

试样名称 紫外线A段
透光率/%		 紫外线B段
透光率/%		 UPF
值
涤纶织物原样 2.98 0.23 37.6
纳米TiO2整理涤纶织物 0.55 0.02 42.3
纳米TiO2-氟硅烷整理涤纶织物 0.37 0.01 43.9
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