纺织学报 ›› 2021, Vol. 42 ›› Issue (08): 96-101.doi: 10.13475/j.fzxb.20200303406

• 染整与化学品 • 上一篇    下一篇

负载纳米ZnO的聚氨酯/聚酯纤维发泡复合绵的制备及其性能

戴沈华1,2, 翁良2, 李冰艳1, 张建平2, 杨旭红1()   

  1. 1.苏州大学 纺织与服装工程学院, 江苏 苏州 215123
    2.苏州美山子制衣有限公司, 江苏 苏州 215221
  • 收稿日期:2020-03-24 修回日期:2021-04-12 出版日期:2021-08-15 发布日期:2021-08-24
  • 通讯作者: 杨旭红
  • 作者简介:戴沈华(1983—),男,高级工程师,博士。主要研究方向为纤维的功能化改性。

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 Published:2021-08-15 Online:2021-08-24
  • Contact: YANG Xuhong

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摘要：

为解决目前衬垫材料弹性较差及缺乏功能性的问题,采用化学溶液法合成了纳米ZnO材料,将其分散到聚氨酯(PU)发泡胶液中与非织造聚酯纤维绵基材进行复合,制备出一种功能性发泡复合绵材料。对纳米ZnO的形貌与结构进行表征,测试了复合绵的压陷回弹性能、光催化特性、防紫外线性能及落球回弹性能。结果表明:合成的纳米ZnO是由直径为30 nm、长为5 μm的纳米棒组成的纳米花,单个纳米棒为六方相;复合绵具有不规则的孔洞结构,其落球回弹率最高可达到58.9%;聚氨酯含量越高,复合绵的压陷回弹性越好;添加纳米ZnO后,复合绵在900 min内可将甲基橙完全降解,其紫外线防护系数值随ZnO质量分数的增加而升高,且稳定性好。

关键词: 纳米ZnO, 非织造绵, 发泡聚氨酯, 回弹性, 甲基橙降解, 防紫外线性能, 光催化性能

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

中图分类号: 

  • TS176

图1

纳米ZnO的SEM照片(×10 000)"

图2

纳米ZnO的XRD图谱"

图3

纳米ZnO的HRTEM照片 注:右下侧插图为对应的选区电子衍射(SAED)谱图。"

图4

聚酯纤维绵、ZnO发泡复合绵和纯发泡PU的SEM照片"

图5

发泡PU负载量对落球回弹性的影响"

表1

样品的耐疲劳压陷回弹性"

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

图6

纳米ZnO发泡复合绵光催化降解甲基橙曲线"

图7

纳米ZnO对PU4发泡复合绵UPF值的影响"

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