纺织学报 ›› 2020, Vol. 41 ›› Issue (09): 21-26.doi: 10.13475/j.fzxb.20191104506

• 纤维材料 • 上一篇    下一篇

吸水树脂吸液性能研究

王凤龙, 王建明(), 周羿恬, 赵明会   

  1. 北京服装学院 材料设计与工程学院, 北京 100029
  • 收稿日期:2019-11-20 修回日期:2020-06-06 出版日期:2020-09-15 发布日期:2020-09-25
  • 通讯作者: 王建明
  • 作者简介:王凤龙(1993—),男,硕士。主要研究方向为功能纺织品研发与评价。

Study on liquid absorption performance of water absorbing resin

WANG Fenglong, WANG Jianming(), ZHOU Yitian, ZHAO Minghui   

  1. School of Materials Design & Engineering, Beijing Institute of Fashion Technology, Beijing 100029, China
  • Received:2019-11-20 Revised:2020-06-06 Online:2020-09-15 Published:2020-09-25
  • Contact: WANG Jianming

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摘要：

为探究吸水树脂吸液性能的影响因素,首先借助扫描电子显微镜、红外光谱仪对吸水树脂的结构进行分析,然后研究了时间、温度对吸水树脂在水和模拟酸、碱汗液中吸液倍率、保水性能的影响,最后探讨了吸水树脂的重复吸液能力。结果表明:吸水树脂表面有大量凸起结构,具有较大比表面积,从而加快了其吸液速率;吸水树脂中含有亲水性酰胺基,其在去离子水和模拟酸、碱汗液中的最大吸液倍率分别约为265、50、50 g/g;影响吸水树脂吸液能力的主要因素是模拟汗液中钠离子的浓度,钠离子浓度越高其吸液能力越差,酸碱性、温度对最大吸液倍率影响较小,但温度对吸水树脂的吸液速率有影响,温度越高吸液速率越快;循环使用10次后,吸水树脂在模拟酸、碱汗液中的吸液率仍可达到87%以上。

关键词: 吸水树脂, 吸液性能, 保水性能, 模拟汗液, 个体防护服

Abstract:

In order to investigate the factors that affect the liquid absorption performance of water-absorbent resins, the structure of water absorbent resin was analyzed by means of scanning electron microscope and infrared spectrometer firstly. The time and temperature effects on the absorbency and water retention of water absorbent resin in water, simulated acid and alkali sweat were also explored. Analysis and discussions were carried out on the repeated absorbency of water absorbent resin. The results show that the surface of the absorbent resin has a large number of convex structures leading to a large specific surface area, increasing the liquid-absorption rate of the water-absorbent resin. The water-absorbent resin contains amide groups, and when submerged in deionized water and simulated sweat the maximum liquid absorption rates reach about 265, 50 and 50 g/g, respectively. The liquid absorption is influenced by the concentration of sodium ions in sweat, and the larger the concentration the worse the liquid absorption capacity. The acidity, alkalinity and temperature have little effect on the maximum absorption rate, but the temperature affects the water absorption rate in that the higher the temperature, the higher the liquid absorption rate, and the smaller the maximum liquid absorption rate. After 10 cycles of absorption loading, the liquid absorption rate of water-absorbent resin in the simulated sweat still reaches 87%.

Key words: water absorbing resin, liquid absorption performance, water retention, simulated sweat, personal protective clothing

中图分类号: 

  • TQ326.4

表1

模拟酸、碱汗液配方"

汗液名称 C6H9N3O2·HCl NaCl NaH2PO4·2H2O Na2HPO4·2H2O
模拟酸汗液 0.50 5.00 2.20 0.00
模拟碱汗液 0.50 5.00 0.00 2.50

表2

不同浓度的模拟酸汗液配方"

汗液浓度 C6H9N3O2·HCl·H2O NaCl NaH2PO4·2H2O
1.0倍浓度 0.50 5.00 2.20
1.5倍浓度 0.75 7.50 3.30
2.0倍浓度 1.00 10.00 4.40
2.5倍浓度 1.25 12.50 5.50
3.0倍浓度 1.50 15.00 6.60

表3

不同浓度的模拟碱汗液配方"

汗液浓度 C6H9N3O2·HCl·H2O NaCl Na2HPO4·2H2O
1.0倍浓度 0.50 5.00 2.50
1.5倍浓度 0.75 7.50 3.75
2.0倍浓度 1.00 10.00 5.00
2.5倍浓度 1.25 12.50 6.25
3.0倍浓度 1.50 15.00 7.50

图1

吸水树脂的红外光谱图"

图2

吸水树脂吸水前后扫描电镜照片(×300)"

图3

不同温度去离子水、模拟酸汗液、模拟碱汗液对吸水树脂吸液倍率的影响"

图4

不同浓度模拟酸汗液和模拟碱汗液对吸液倍率的影响"

图5

氯化钠质量浓度对吸液倍率的影响"

图6

模拟酸蛋白和模拟碱蛋白对吸液倍率的影响"

图7

吸水树脂重复吸水性"

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