The effect of photoinitiators on synthesis of super-absorbent resin by uv photopolymerization

RUAN Weiqing; QIAO Jinliang; LIN Jichen; HUANG Yuli; NIU Aijie

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The effect of photoinitiators on synthesis of super-absorbent resin by uv photopolymerization

更新时间：2023-03-30

- The effect of photoinitiators on synthesis of super-absorbent resin by uv photopolymerization
- Journal of Radiation Research and Radiation Processing Vol. 22, Issue 2, Pages: 82-86(2004)
- 作者机构：
  
  1.北京化工大学材料科学与工程学院　北京　100029
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RUAN Weiqing, QIAO Jinliang, LIN Jichen, et al. The effect of photoinitiators on synthesis of super-absorbent resin by uv photopolymerization. [J]. Journal of Radiation Research and Radiation Processing 22(2):82-86(2004)
DOI：

RUAN Weiqing, QIAO Jinliang, LIN Jichen, et al. The effect of photoinitiators on synthesis of super-absorbent resin by uv photopolymerization. [J]. Journal of Radiation Research and Radiation Processing 22(2):82-86(2004) DOI：

摘要

UV光聚合法合成聚丙烯酸-丙烯酸钾（钠）高吸水性树脂，对比于传统的热聚合方法具有工艺简单、反应时间短、易操作、可在常温下进行以及无三废污染等优点。光引发剂是影响UV光聚合反应最重要的因素。本工作对Iragure651、Iragure819、Iragure184、Iragure1700、Iragure1800、Iragure2929等光引发剂的光引发进行了研究，包括光引发剂的种类、浓度和曝光时间等因素对光聚合体系及产品的吸水性能的影响。结果表明，用Iragure651和Iragure1700为光引发剂聚合效果最好。在相同的聚合条件下，以Iragure651为光引发剂合成的丙烯酸-丙烯酸钾高吸水树脂吸水率可达1358mL/g，吸盐水率可达115 mL/g。

Abstract

Synthesis of acrylic acid-acrylate salt (acrylic acid-potassium acrylate and acrylic acid-sodium acrylate) copolymer super absorbent resin (SAR) by UV photopolymerization have many merits compared with traditional methods, such as simple technology, short reaction time, normal temperature operation and no pollution. Photoinitiator is the most important factor of photopolymerization. In this paper, several kinds of photoinitiators ( Iragure651、Iragure819、Iragure184、Iragure1700、Iragure1800 and Iragure2929) were studied, including the influence of varieties and concentration on the performance of UV copolymerization and the water absorption capacity of SAR. It shows Iragure651, Iragure1700 are efficient photoinitiators for photopolymerization of SAR. The proper exposing time for preparing SAR was about 10min. Using Iragure651 as photoinitiator, the water absorbency and 0.9% NaCl absorbency of acrylic acid-potassium acrylate copolymer SAR reach 1358mL/g and 115mL/g respectively.

关键词

UV光聚合光引发剂高吸水性树脂

Keywords

UV photopolymerizationPhotoinitiatorsSuper absorbent resin

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College of Material Science and Engineering, Beijing University of Chemical Technology

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