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Ionic-bonded superabsorbent polymers and their surface-crosslinking using modified silica
Polymer-Plastics Technology and Materials ( IF 2.7 ) Pub Date : 2020-10-21 , DOI: 10.1080/25740881.2020.1836213
Yong Rok Kwon 1, 2 , Seok Ju Hong 1, 2 , Seung Ho Lim 1, 2 , Jung Soo Kim 1, 3 , Young Wook Chang 2 , Jun Choi 1 , Dong Hyun Kim 1
Affiliation  

ABSTRACT

The purpose of this study is to improve the low absorbency under load and the permeability of a superabsorbent polymer (SAP)-based on itaconic acid by introducing a polycationic salt into the core-SAP to form ionic bonds as well as by adding modified silica to the surface-crosslinked SAP. The core-SAP was synthesized by aqueous polymerization using itaconic acid, vinyl sulfonic acid, and tetra (ethylene glycol) diacrylate. The absorbency under loading of the core-SAP was improved using aluminum sulfate and zirconium sulfate as polycationic salts. The surface-crosslinked core-SAP with the modified silica showed increased permeability.



中文翻译:

离子键合的超吸收性聚合物及其使用改性二氧化硅的表面交联

摘要

这项研究的目的是通过将聚阳离子盐引入到核芯SAP中形成离子键并向其中加入改性二氧化硅来改善基于衣康酸的超吸收性聚合物(SAP)的负载下的低吸收性和渗透性。表面交联的SAP。通过使用衣康酸,乙烯基磺酸和四(乙二醇)二丙烯酸酯的水性聚合来合成核-SAP。使用硫酸铝和硫酸锆作为聚阳离子盐可以提高core-SAP的负载吸收率。具有改性二氧化硅的表面交联的芯-SAP显示出增加的渗透性。

更新日期:2020-10-30
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