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复合型保水剂的制备与性能研究(PDF)

《南京林业大学学报(自然科学版)》[ISSN:1000-2006/CN:32-1161/S]

Issue:
2017年05期
Page:
114-120
Column:
研究论文
publishdate:
2017-09-30

Article Info:/Info

Title:
Synthesis and property of composite super absorbent polymer
Article ID:
1000-2006(2017)05-0114-07
Author(s):
SHI Yanjun1ZHU Lijun1* ZHANG Jinchi2 LI Kun2 XU Xusheng1
1.College of Science, Nanjing Forestry University, Nanjing 210037, China; 2. College of Forestry, Nanjing Forestry University, Nanjing 210037, China
Keywords:
Keywords:water-retaining agent corn starch sodium alginate sodium bentonite
Classification number :
TQ332
DOI:
10.3969/j.issn.1000-2006.201612063
Document Code:
A
Abstract:
【Objective】Obtain the composite super absorbent polymer, and analyze its water holding capacity. 【Method】 Composite water-retaining agents were prepared with acrylic acid(AA), corn starch(CS), sodium alginate(SA), sodium bentonite(SB), ammonium persulfate(AP)as initiator, and N, N'-methylene-bis-acrylamide(MBA)as cross-linking agent by means of solution polymerization. The composite water-retaining agents were characterized by infrared spectrum, thermo gravimetry and scanning electron microscope. 【Result】Sodium alginate and sodium bentonite can improve the properties of water-retaining agent, while decrease cost of production. That water absorptivity of composite water-retaining agent having AP of 0.20% based on AA, MBA of 0.025% based on AA, SA of 15% based on AA and SB of 15% based on AA indistilled water and normal saline was 850 g/g and 95 g/g, respectively. 【Conclusion】This composite water-retaining agent had fast water absorption rate and good water retention capacity.

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