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高吸水树脂的制备及作为纸尿裤芯体材料的吸液性能研究

Preparation and Study of the Liquid Absorption Performance of High-absorbent Resin as the Core Material of Diapers

Material Science and Engineering / 2025,7(1): 1-13 / 2025-04-16 85 79

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• Authors: 黄国俸 孙章颖 雷鑫 秦雯霞 崔琳 陈会军 岳影 陈颖
• Information:

  重庆科技大学化学化工学院，重庆

• Keywords:
  PAA absorbent polymer; Hygiene core material; AMPS; NVP
  PAA吸水树脂; 卫生用品芯体材料; AMPS; NVP
• Abstract: In order to prepare a super absorbent polymer with temperature and salt resistance properties suitable for the core materials of disposable sanitary products such as diapers and sanitary napkins, this paper uses 2-acrylamide- 2-methylpropane sulfonic acid (AMPS) and N-ethylene A modified acrylic acid (AA) water-absorbent resin (PAA water-absorbent polymer) was prepared using pyrrolidone (NVP) as a modifier. The experimental results show that the prepared modified the liquid absorption ratio of PAA water-absorbent resin in deionized water increased from 1217g/g before modification to 2042g/g after modification. At 36.5°C, the absorption ratio (8h) of modified PAA waterabsorbent resin in artificial urine, artificial blood and saline increased from 47g/ g, 49g/g and 64g/g before modification to modified The latter 89g/g, 87.2g/g and 101g/g. At the same time, the deionized water absorption rate of the modified PAA water-absorbing polymer conforms to the first-order kinetic model, and the water absorption ratio reaches 308g/g in 5 minutes. According to the GBT22875-2018 standard for superabsorbent polymers for diapers and sanitary napkins. The modified PAA water-absorbing polymer prepared in this paper was 2.5times. It can be seen that the research results can provide a theoretical reference for the modified PAA water-absorbing resin to be used as the core material of disposable sanitary products such as sanitary napkins and paper diapers, and has market application prospects. 为了制备适用于纸尿裤和卫生巾等一次性卫生用品芯体材料、具有耐温耐盐性能的高吸水树脂，本研究以2-丙烯酰胺-2-甲基丙磺酸（AMPS）和N-乙烯基吡咯烷酮（NVP）为改性剂，制备改性丙烯酸（PAA）的吸水树脂。实验结果表明：改性PAA吸水树脂在去离子水中的吸液倍率从改性前的1217g/g提高到改性后的2042g/g。在36.5°C下，改性PAA吸水树脂在人工尿液、人工血液和生理盐水中的吸液倍率（8h）分别从改性前的47g/g、49g/g和64g/g增长到改性后的89g/g、87.2g/g和101g/g。同时，吸去离子水速率符合一级动力学模型，5min时吸水倍率为308g/g，达到GB/T22875-2018《纸尿裤和卫生巾用高吸收性树脂》标准的2.5倍以上。由此可见，本研究结果可为改性PAA吸水树脂用于卫生巾和纸尿裤等一次性卫生用品芯体材料提供理论参考，具有市场应用前景。
• DOI: https://doi.org/10.35534/mse.0701001
• Cite: 黄国俸，孙章颖，雷鑫，等．高吸水树脂的制备及作为纸尿裤芯体材料的吸液性能研究［J］．材料科学与工程，2025，7（1）：1-13．