淀粉基接枝丙烯酸钠复合高吸水树脂材料的制备及性能测试

doi:10.11896/cldb.20080018

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Abstract Using acrylic acid and soluble starch as the main raw materials, ammonium persulfate as the initiator, N-N′-methylenebisacrylamide as the crosslinking agent, and acrylamide as the monomer,the super absorbent resin (SAR) is synthesized by aqueous solution polymerization. The L25(5⁵) orthogonal test was designed to determine the SAR preparation conditions, and appropriate amounts of kaolin, montmorillonite, and laponite were respectively added to prepare composite super absorbent resin. Use FT-IR, SEM-EDS, TG, etc. to characterize the composite super absorbent resin. The liquid absorption and water retention of the composite super absorbent resin were investigated. The SAR experiment conditions were following: the mass ratio of acrylamide starch was 5∶4, the synthesis temperature was 45 ℃, the initiator was 0.13 g, the crosslinking agent was 0.01 g, and the sodium hydroxide was 9 g. The results showed that under this condition, the maximum water absorption rate of SAR was 179.5 g/g, and the salt absorption rate was 70.75 g/g. FT-IR and SEM-EDS results show that the resin has been successfully prepared. The addition of inorganic kaolin, montmorillonite, and laponite improves the liquid absorption performance and thermal stability of SAR. The water absorption rate and salt absorption rate of SAR containing kaolin both reach the maximum, while the water absorption rate is 245.0 g/g and salt absorption rate is 83.3 g/g.

Key words： soluble starch aqueous solution polymerization super absorbent resin inorganic

Published: 25 November 2021 Online: 2021-12-13

CLC number:

TQ324.8

Fund:This work was supported by the National Key R & D Program of China (2018YFC0808104).

About author: Li Mais a professor at Xi'an University of Science and Technology, a supervisor of doctoral and master students, and a senior visiting scholar at Worcester Polytechnic Institute. He won China Association for Scie-nce and Technology Seeking Truth Outstanding Youth Achievement Transformation Award, Sun Yueqi Youth Science and Technology Award, Shaanxi Youth Science and Technology Award, National Coal “May 4th” Youth Medal and other honors. The main research direction is fire prevention and fire rescue, leading the team to carry out fire science basics, fire perception and smart fire protection, new fire prevention technology and fire rescue research. He presided over more than 10 national key R & D projects, National Natural Science Foundation of China and other national projects, won 1 second prize of National Science and Technology Progress Award, more than 30 provincial and ministerial science and technology progress awards, more than 30 invention patents, and published 5 books, published more than 100 academic papers, of which more than 20 were collected by SCI and EI.

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	MA Li
	LIU Xixi
	ZHOU Shasha
	YU Wencong
	LIU Shangming
	HUANG Xiao

Cite this article:

MA Li,LIU Xixi,ZHOU Shasha, et al. Preparation and Performance Test of Starch-based Grafted Sodium Acrylate Composite Super Absorbent Resin Material[J]. Materials Reports, 2021, 35(22): 22172-22177.

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http://www.mater-rep.com/EN/10.11896/cldb.20080018 OR http://www.mater-rep.com/EN/Y2021/V35/I22/22172

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