Water Absorbing Mechanisms of High Water Absorbent Resin

Tingdong Liu; Jing Liu

doi:10.14028/j.cnki.1003-3726.1994.03.010

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Water Absorbing Mechanisms of High Water Absorbent Resin

更新时间：2022-09-18

- Water Absorbing Mechanisms of High Water Absorbent Resin
- Polymer Bulletin Vol. 7, Issue 3, Pages: 181-185(1994)
- 作者机构：
  
  天津大学材料科学与工程系，天津，300072
- 作者简介：
- 基金信息：
- DOI：10.14028/j.cnki.1003-3726.1994.03.010
  CLC：
- Published：1994-09，
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Tingdong Liu, Jing Liu. Water Absorbing Mechanisms of High Water Absorbent Resin. [J]. Polymer Bulletin 7(3):181-185(1994)
DOI：

Tingdong Liu, Jing Liu. Water Absorbing Mechanisms of High Water Absorbent Resin. [J]. Polymer Bulletin 7(3):181-185(1994) DOI： 10.14028/j.cnki.1003-3726.1994.03.010.

摘要

高吸水性树脂是三度空间网络聚合物，是高分子电介质。在高分子网络链上嵌有可电离的离子对，遇水形成离子网络。该树脂能吸收自身重量几百倍至几千倍的水，且保水性好，即使在压力下，水也不从中溢出。其吸水机理可用Flory-Huggins热力学公式来解释。

Abstract

High water absorbent resin can absorb several hundred times and several thousand times as much water as its own weight

owning to its high capacity for absorbing water

high degree of water retention under pressure

High water absorbent resin was a three - dimensional network polymer

it was polyelectrolytes. Polymer chains making up the network cantain ioniz- able group and mobile electrolyte ions. The concentration of mobile ions will always be greater in the gel than outside because

Consequently the osmetic pressure of solution inside will exceed that of the external solution. The water absorbem mechanisms of high absorbent resin was explicated by thermodynamic formulation of Flory - Hoggins.

关键词

高吸水性树脂吸水机理离子网络聚合物凝胶

Keywords

High water absorbent resinWater absorbing mechanismsIonic networksPolymer gel

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