Journal of Textile Research ›› 2019, Vol. 40 ›› Issue (09): 102-107.doi: 10.13475/j.fzxb.20180403106

• Dyeing and Finishing & Chemicals • Previous Articles     Next Articles

Preparation of fluorine-free water repellent treated wool/cashmere fabrics

WEI Lingli, ZOU Qinshan, WANG Lu, LUO Jing, XIA Xin()   

  1. College of Textile and Clothing, Xinjiang University, Urumqi, Xinjiang 830046, China
  • Received:2018-04-16 Revised:2019-06-14 Online:2019-09-15 Published:2019-09-23
  • Contact: XIA Xin E-mail:xjxiaxin@163.com

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Abstract:

In order to improve the self-cleaning ability of wool/cashmere (60/40) fabrics and reduce the adverse effects of fabric shrinkage caused by cleaning, the fabric surface was pretreated by atmospheric pressure plasma. Then, the micro/zirconium nano-sized acetylacetonate and polydimethylsiloxane were adopted to prepare the fluorine free environment-friendly fabric water repellent agent for electrostatic spraying and hydrophobic treatment. By analyzing the static contact angle change and the infrared test results of original sample and plasma-treaded sample, the best plasma treatment parameters and the effect of fabric shrinkage were found. The original sample, plasma-treaded sample and plasma-treaded with hydrophobically treated sample were compared in the morphology, static contact angle, moisture permeability and ultraviolet resistance. The study reveals that the hydrophobic sample finished by electrostatic spraying after plasma treatment exhibits excellent hydrophobicity. The static contact angle increases to 152°, which reaches the super hydrophobic critical value. The moisture permeability and air permeability of the fabric decrease by only 2.98% and 1.65%, and the shrinkage of the fabric decreases by 4.61%. Moreover,this method assists in increasing the ultraviolet protection of the fabric by 14.14%.

Key words: functional wool/cashmere fabric, electrostatic spraying, hydrophobic finishing, zirconium acetylacetonate, polydimethylsiloxane, felt shrinkage, UV resistance

CLC Number: 

  • TS195.5

Tab.1

Sample design"

试样编号 处理方式
试样1 乙酰丙酮锆处理
试样2 PDMS处理
试样3 乙酰丙酮锆处理/PDMS处理
试样4 等离子体预处理/乙酰丙酮锆处理/PDMS处理
试样5 等离子体预处理
试样6 等离子体预处理/PDMS处理

Fig.1

FT-IR Spectra of samples"

Fig.2

SEM images of samples (×1 000). (a)Original fabric;(b)Sample 5;(c)Sample 4"

Fig.3

Variation of static contact angle"

Fig.4

Static contact angles of water droplets by different treatments. (a)Sample 1;(b)Sample 2;(c)Sample 3;(d)Sample 4"

Fig.5

Static contact angles of common droplets in daily life. (a)Tea;(b)Orange juice;(c))Coffee;(d))Milk"

Tab.2

Test results of felt shrinkage"

样品类别 松弛长度/mm 毡缩长度/mm 毡缩率/
%
纬向 经向 纬向 经向
未处理样 17.8 17.7 16.8 16.1 14.62
试样5 17.9 17.9 17.2 16.9 9.40
试样4 17.9 17.9 17.3 17.1 7.70

Tab.3

Test results of air and moisture permeability"

样品类别 透气量/
(mm·s-1)		 透湿量/
(g·(m2·d)- 1)
未处理样 804.53 8 005.26
试样4 776.48 7 873.15

Tab.4

Test results of ultraviolet resistance"

样品类别 T(UVA)AV/% T(UVB)AV/% UPFAV
未处理样 2.68 2.06 42.14
试样6 2.47 2.28 42.15
试样4 2.19 2.06 48.10
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