Preparation and characterization of poly(acrylic acid-co-acrylamide)/hydrotalcite nanocomposite superabsorbent

ZHANG Yatao; ZHANG Lin; CHEN Huanlin

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Preparation and characterization of poly(acrylic acid-co-acrylamide)/hydrotalcite nanocomposite superabsorbent

更新时间：2025-12-10

- Preparation and characterization of poly(acrylic acid-co-acrylamide)/hydrotalcite nanocomposite superabsorbent
- CIESC Journal Issue 6, Pages: 1565-1570(2008)
- 作者机构：
  
  浙江大学化学工程与生物工程学系
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Online First：05 June 2008，
  
  Published：05 June 2008
- 稿件说明：
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ZHANG Yatao, ZHANG Lin, CHEN Huanlin. Preparation and characterization of poly(acrylic acid-co-acrylamide)/hydrotalcite nanocomposite superabsorbent[J]. CIESC Journal, 2008, (6): 1565-1570.
DOI：

ZHANG Yatao, ZHANG Lin, CHEN Huanlin. Preparation and characterization of poly(acrylic acid-co-acrylamide)/hydrotalcite nanocomposite superabsorbent[J]. CIESC Journal, 2008, (6): 1565-1570. DOI：

摘要

首先用尿素法合成了水滑石(HT)，然后用甲基丙烯磺酸钠(SMAS)对水滑石进行插层，得到了插层的水滑石(SMAS-HT)，最后通过反相悬浮聚合制备了一种新型的聚(丙烯酸-丙烯酰胺)/水滑石纳米复合高吸水性树脂，其中N

N′-亚甲基双丙烯酰胺(NMBA)为交联剂，过硫酸钾(KPS)为引发剂。通过傅里叶变换红外光谱(FTIR)、X-射线衍射(XRD)及扫描电镜(SEM)等手段表征其结构和形貌。考察了SMAS-HT的含量对其吸水(盐)性能的影响。结果表明，插入SMAS的水滑石片层在聚合后发生了剥离，添加少量的SMAS-HT可以明显提高树脂的吸水(盐)性能，当SMAS-HT含量为3.0%（质量）时，树脂的吸(盐)水性能达到最大。

Abstract

The hydrotalcite (HT) synthesized with urea method was used to prepare intercalated HT (SMAS-HT) by using methyl allyl sulfonate (SMAS) as an intercalation agent.A novel poly (acrylic acid-co-acrylamide)/HT nanocomposite superabsorbent was prepared by inverse polymerization

using N

N′-methylenebisacrylamide (NMBA) as a crosslinking agent and potassium persulfate (KPS) as an initiator.The structure and morphology were characterized by FTIR

XRD and SEM.The influences of the amount of SMAS-HT on the water (salt) absorbency were studied.The results showed that the intercalation was successful and SMAS-HT was completely exfoliated after polymerization.Adding a small amount of SMAS-HT could effectively improve the water (salt) absorbency of nanocomposite superabsorbents.The nanocomposite superabsorbents had their highest water (salt) absorbency when the content of SMAS-HT was 3.0%(mass).

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