Journal of Textile Research ›› 2019, Vol. 40 ›› Issue (12): 74-78.doi: 10.13475/j.fzxb.20180902605

• Dyeing and Finishing & Chemicals • Previous Articles     Next Articles

Influence of silk sericin temperature sensitive hydrogel on properties of cotton fabrics

CUI Yifan1, HOU Wei1, ZHOU Qianxi1, YAN Jun1(), LU Yanhua2, HE Tingting3   

  1. 1. School of Textile and Material Engineering, Dalian Polytechnic University, Dalian, Liaoning 116034, China
    2. Key Laboratory of Functional Textile Materials, Liaoning Province, Eastern Liaoning University, Dandong, Liaoning 118003, China
    3. Patent Examination Cooperation (Beijing) Center of the Patent Office, Beijing 100160, China
  • Received:2018-09-12 Revised:2019-09-22 Online:2019-12-15 Published:2019-12-18
  • Contact: YAN Jun E-mail:yanjun@dlpu.edu.cn

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Abstract:

In order to improve the mechanical properties and the thermostability of cotton fabrics, the N-isopropyl acrylamide/silk sericin IPN hydrogel was prepared by the interpenetrating polymer network (IPN) technology. The glutaraldehyde (GA) was used as crosslinking agent, and the IPN hydrogel was adopted to modify the cotton fabrics by the impregnation method. The IPN hydrogel and modified cotton fabrics were characterized by Fourier transform infrared spectroscopy, scanning electron microscopy, differential scanning calorimetry, X-ray diffraction, thermogravimetric analysis and universal material tension machine. The results show that the lowest critical solution temperature is 30.79 ℃ for the hydrogel. A layer of modified hydrogen film is formed between the surface of modified cotton fabrics and the fibers, which crystal 2θ angle has no shift. The breaking strength, elongation at break and elasticity modulus are improved by 29.39%, 35.24% and 17.58%, respectively. The decomposition temperature of modified cotton fabrics is raised by 61.79%.

Key words: silk sericin, hydrogel, mechanical property, thermostability, cotton fabric, interpenetrating polymer network

CLC Number: 

  • TS195.5

Fig.1

DSC thermograms of IPN hydrogel"

Fig.2

FT-IR of various components of IPN hydrogel"

Fig.3

FT-IR spectra of cotton fabrics before and after modification"

Fig.4

XRD pattern of cotton fabrics before and after modification"

Fig.5

SEM images of cotton fabrics before (a)and after (b) modification(×500)"

Tab.1

Surface elements content on cotton fabrics before and after modification%"

试样名称 碳 氧 氮 银
未改性棉织物 54.33 45.67 0.00 0.00
改性棉织物 48.28 42.16 9.32 0.24

Fig.6

TG curves of modified and unmodified cotton fabrics"

Tab.2

Mechanical properities of unmodified and modified cotton fabrics"

试样名称 断裂强
力/N		 断裂伸长
率/%		 弹性模
量/MPa
未改性棉织物 179.756 5.393 81.926
改性棉织物 243.107 6.978 96.326
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