Journal of Textile Research ›› 2020, Vol. 41 ›› Issue (09): 81-87.doi: 10.13475/j.fzxb.20190704007

• Textile Engineering • Previous Articles     Next Articles

Preparation and properties of microfiber synthetic leather base

DUO Yongchao1, QIAN Xiaoming1(), ZHAO Baobao2, QIAN Yao3, ZOU Zhiwei1   

  1. 1. School of Textile Science and Engineering, Tiangong University, Tianjin 300387, China
    2. School of Textile and Clothing, Anhui Polytechnic University, Wuhu, Anhui 241000, China
    3. School of Textile Materials and Engineering, Wuyi University, Jiangmen, Guangdong 529020, China
  • Received:2019-07-15 Revised:2020-05-27 Online:2020-09-15 Published:2020-09-25
  • Contact: QIAN Xiaoming E-mail:qxm@tiangong.edu.cn

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Abstract:

In order to further improve the water-vapor transmission rate and softness of polyester/polyamide 6 (PET/PA6) hollow microfiber synthetic leather base, polyacrylonitrile (PAN) nanofibers were mixed with PET/PA6 microfibers to prepare PAN-PET/PA6 micro/nano microfiber synthetic leather base by hydro-entanglement and alkali treatment. The effects of PAN nanofiber mass fraction on the air permeability, water vapor permeability, moisture absorption, softness and mechanical properties of leather base were analyzed. The results show that the water vapor permeability, moisture absorption, softness and tear strength were improved with the content of PAN nanofibers increase for the same areal density, but the air permeability and breaking strength were decreased. When the content of nanofibers was 20%, the water vapor permeability of the base was increased by 15.19%, the moisture absorption 23.53%, and the softness was increased by 38.17%. After alkali treatment, the hydrophilicity of base was obviously improved. The water vapor permeability was increased by 23.81%, the moisture absorption was increased by 42.26%, and the softness was increased by 23.20%.

Key words: polyester/polyamide 6 microfiber, polyacrylonitrile nanofiber, spunlace, synthetic leather base, fiber modification, moisture permeability

CLC Number: 

  • TS174.8

Fig.1

Flow chart of preparation process"

Fig.2

SEM images of natural leather(a) and PAN nanofibers (b)"

Fig.3

SEM images of PAN-PET/PA6 synthetic leather base cross section with different PAN mass fractions. (a) Surface of M1; (b) Cross section of M1; (c) Surface of M3; (d) Cross section of M3"

Fig.4

FT-IR spectra of PAN-PET/PA6 synthetic leather base"

Fig.5

Effect of PAN nanofiber mass fraction on air permeability of PAN-PET/PA6 synthetic leather base"

Fig.6

Water contact angle test result of PAN-PET/PA6 synthetic leather base before(a)and after(b)alkali treatment"

Fig.7

Effect of PAN nanofiber mass fraction on water-vapor transmission(a)and moistue absorption(b) of PAN-PET/PA6 synthetic leather base"

Fig.8

Effect of PAN nanofiber mass fraction on softness of microfiber synthetic leather base"

Tab.1

Mechanical properties of PAN-PET/PA6 synthetic leather base"

试样
编号		 断裂强力/N 断裂伸长率/% 撕裂强力/N
碱处理前 碱处理后 碱处理前 碱处理后 碱处理前 碱处理后
M1 162.38 124.80 124.09 91.13 8.52 8.12
M2 153.46 117.15 110.26 84.66 9.62 8.56
M3 145.25 112.71 104.59 80.63 11.79 9.25
M4 137.15 106.67 97.27 78.81 12.99 10.04
M5 122.75 103.78 93.92 69.69 14.34 10.11
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