Journal of Textile Research ›› 2022, Vol. 43 ›› Issue (03): 132-138.doi: 10.13475/j.fzxb.20210203207

• Dyeing and Finishing & Chemicals • Previous Articles     Next Articles

Preparation and property of composite hydrogel nonwoven based fresh-keeping material

WANG Chenmeizi1,2, WANG Ling1, ZHANG Qingle1, WANG Ying1, XIA Xin1,2()   

  1. 1. College of Textile and Clothing, Xinjiang University, Urumqi, Xinjiang 830046, China
    2. Key Laboratory of Textile Science & Technology, Ministry of Education, Donghua University, Shanghai 201620, China
  • Received:2021-02-15 Revised:2021-09-29 Online:2022-03-15 Published:2022-03-29
  • Contact: XIA Xin E-mail:xjxiaxin@163.com

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Abstract:

In order to expand the application of nonwovens as fresh-keeping packaging materials, using sea buckthorn as the raw material for antioxidant fresh-keeping ingredients, a composite hydrogel nonwovens fresh-keeping material was prepared by loading different volume fractions of sea buckthorn extract (SBT) to prepare apocynum nanofibers/chitosan based hydrogels and compounding with polyester nonwovens. The blocking effect, release behavior, antioxidant properties, antibacterial and fresh-keeping performance of the engineered material were analyzed. The results show that as SBT volume fraction increases, the blocking effect of the composite hydrogel nonwoven is enhanced and the oxidation resistance is significantly improved. In the 18 d release test, the maximum cumulative SBT release percentage from the fresh-keeping material under the acidic condition reaches 67.84%, and the width of the inhibition zone against Staphylococcus aureus and Escherichia coli is more than 1 mm, indicating good antibacterial performance. The composite hydrogel nonwoven with 30% SBT has the best comprehensive freshness preservation ability for 9 d.

Key words: chitosan-based hydrogel, sea buckthorn extract, barrier property, releasing behavior, nonwoven, fresh-keeping material

CLC Number: 

  • TS176

Fig.1

Morphologies of PET nonwovens and composite hydrogel nonwovens under 3-D microscope(×5 000)"

Tab.1

Air permeability of PET nonwovens and composite hydrogel nonwovensmm/s"

PET SHP0 SHP1 SHP2 SHP3
2 534.34 1 248.09 638.37 339.01 222.08

Fig.2

Release behavior of composite hydrogel nonwovens"

Tab.2

Antioxidant properties of composite hydrogel nonwovens%"

样品名称 DPPH清除率 OH-清除率 ABTS+清除率
SHP0 10.86 23.33 31.13
SHP1 69.34 79.63 56.20
SHP2 73.67 82.89 66.10
SHP3 88.58 84.69 69.40

Tab.3

Sensory evaluation of fresh-cut apples packaged with PET nonwovens and composite hydrogel nonwovens"

储存时间/d PET SHP0 SHP1 SHP2 SHP3
0 紧实饱满,无渗液 紧实饱满,无渗液 紧实饱满,无渗液 紧实饱满,无渗液 紧实饱满,无渗液
3 褐变,渗液析出 正常 正常 正常 正常
6 褐变严重,体积缩小 褐变,渗液 正常 正常 正常
9 霉变 褐变,变软,渗液 变软,渗液 变软,渗液 变软
12 霉变 褐变,变软,渗液 褐变,变软,渗液 褐变,渗液
15 霉变 霉变 褐变,变软,渗液

Fig.3

Titratable acid of fresh-cut apples packaged in composite hydrogel nonwovens"

Fig.4

Mass loss rate of fresh-cut apples packaged with composite hydrogel nonwovens"

Tab.4

Antibacterial properties of composite hydrogel nonwovensmm"

样品名称 抑菌带宽度
对大肠杆菌 对金黄色葡萄球菌
SHP0 3.77 1.71
SHP1 5.08 1.92
SHP2 6.52 4.85
SHP3 5.93 4.04
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