Journal of Textile Research ›› 2021, Vol. 42 ›› Issue (08): 96-101.doi: 10.13475/j.fzxb.20200303406

• Dyeing and Finishing & Chemicals • Previous Articles     Next Articles

Preparation and properties of nano-ZnO loaded polyurethane/polyester foamed composite sponge

DAI Shenhua1,2, WENG Liang2, LI Bingyan1, ZHANG Jianping2, YANG Xuhong1()   

  1. 1. College of Textile and Clothing Engineering, Soochow University, Suzhou, Jiangsu 215123, China
    2. Suzhou Meishanzi Garment Co., Ltd., Suzhou, Jiangsu 215221, China
  • Received:2020-03-24 Revised:2021-04-12 Online:2021-08-15 Published:2021-08-24
  • Contact: YANG Xuhong E-mail:yangxuhong@suda.edu.cn

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Abstract:

In order to improve elasticity and enhance functions of nonwoven fabric, the research introduced in this paper used a chemical solution method to synthesize nano-ZnO, dispersed it into a polyurethane (PU) foam gel and then compounded with nonwoven polyester fabric substrate to prepare a new functional elastic material. Morphology and structure of the obtained nano-ZnO, and the indentation resilience, photocatalytic performance, ultraviolet protection and ball rebound resilience of the composite sponge were analyzed. The results show that the synthesized nano-ZnO is a nano-sized flower composed of nanorods with a diameter of 30 nm and a length of 5 μm. The composite sponge has a non-standard hole structure, and its ball rebound rate reaches 58.9%. It is show that the higher the PU content, the better the ball rebound resilience. After adding nano-ZnO, the composite sponge can completely degrade the methyl orange within 900 min. The ultraviolet protection factor value becomes higher with enhanced stability with the increase of ZnO content.

Key words: nano-ZnO, nonwoven sponge, foamed polyurethane, resiliency, methyl orange degradation, ultraviolet protection, photocatalytic performance

CLC Number: 

  • TS176

Fig.1

SEM image of nano-ZnO (×10 000)"

Fig.2

XRD pattern of nano-ZnO"

Fig.3

HRTEM image of nano-ZnO"

Fig.4

SEM images of PET fibers sponge (a), ZnO foamed composite sponge (b) and pure foamed PU (c)"

Fig.5

Effect of foamed PU content on falling ball-rebound property"

Tab.1

Resilience of samples against fatigue compression"

试样名称 平均厚度/mm 回弹率/%
圈内 圈外
聚酯纤维绵 32.5 39.1 83.1
PU2 32.0 36.3 88.2
PU6 34.1 36.8 92.7
PU10 35.6 37.9 93.9
纯发泡PU 37.2 39.4 94.4

Fig.6

Photocatalytic degradation of methyl orange by nano-ZnO loaded foamed composite sponge"

Fig.7

Effect of nano-ZnO on UPF value of PU4 foamed composite sponge"

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