Journal of Textile Research ›› 2019, Vol. 40 ›› Issue (02): 87-93.doi: 10.13475/j.fzxb.20180801007

• Textile Engineering • Previous Articles     Next Articles

Preparation and properties of poly(fluorinated ethylene-propylene) fiber fabric

PAN Jinfeng1, XIAO Changfa1,2(), YAN Jingjing1, FENG Yan1, ZHU Zhengtao1   

  1. 1. School of Textiles Science and Engineering Tianjin Polytechnic University, Tianjin 300387, China
    2. State Key Laboratory of Membrane Separation and Membrane Processes, Tianjin Polytechnic University, Tianjin 300387, China
  • Received:2018-08-03 Revised:2018-11-11 Online:2019-02-15 Published:2019-02-01
  • Contact: XIAO Changfa E-mail:xiaochangfa@163.com

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Abstract:

In order to weave textiles with the durability in special environments, poly(fluorinated ethylene-propylene)(FEP) yarns were prepared from FEP fiber by twisting and doubling. The plain weave fabric of FEP with the width of 250 mm and the thickness of 0.51 mm was woven by a semi-automatic loom. Electronic tensile testing machine, dynamic contact angle tester, fabric air permeability tester, fabric moisture permeability tester, abrasion tester, ultraviolet condensation aging test box, differential scanning calorimeter, X-ray diffractometry and Fourier transform infrared spectroscopy were applied to analyze and characterize the properties of yarns and fabrics. The results show that FEP yarns have good mechanical properties and hydrophobicity. FEP fabric have excellent mechanical properties, high-temperature resistance and excellent chemical resistance and aging resistance. The thermal performance, crystalline structure, chemical structure and mechanical properties of the fabrics treated with acid, alkali and organic solvents have no significant change. The mechanical properties of the FEP fabrics treated under UV irradiation have no significant change, showing the feasible application of FEP fiber fabric in special environments.

Key words: poly(fluorinated ethylene-propylene) fiber fabric, industrial textile, mechanical property, chemical resistance, aging resistance

CLC Number: 

  • TS156

Fig.1

Looming draft of FEP fiber fabric"

Fig.2

Water contact angles of FEP yarn"

Fig.3

Tensile properties of FEP fiber fabrics"

Fig.4

Thermal shrinkage curve of FEP fiber fabric with temperature"

Fig.5

Thermal shrinkage curve of FEP fiber fabric under different temperature with time. (a) Warp direction; (b) Weft direction"

Fig.6

DSC curves of FEP fiber fabrics treated with different chemical reagents"

Tab.1

Melting temperature and relative crystallinity of FEP fabrics treated by different chemical reagents"

试样 Tm/ ℃ ΔH/(J·g-1) Xc/%
原始试样 265.50 17.06 19.41
十氢萘处理 265.33 16.86 19.18
H2SO4处理 265.60 16.62 18.91
NaOH处理 265.61 16.85 19.17

Fig.7

XRD patterns of FEP fabrics treated with different chemical reagents"

Tab.2

Crystal structure parameters of sample"

试样 晶面
指数		 2θ/(°) 半高
宽/(°)		 晶粒尺
寸/nm
原始试样 (100) 17.65 0.692 11.479
十氢萘处理 (100) 17.75 0.707 11.237
H2SO4处理 (100) 17.65 0.698 11.384
NaOH处理 (100) 17.65 0.712 11.160

Fig.8

FT-IR spectra of FEP fabrics treated with different chemical reagents"

Fig.9

Tensile properties of FEP fiber fabrics treated with different chemical reagents. (a) Warp direction;(b) Weft direction"

Fig.10

Tensile properties between aged and untreated FEP fiber fabrics. (a) Warp direction;(b) Weft direction"

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