Synthesis, characterization and water absorbency properties of poly(acrylic acid)/sodium humate superabsorbent composite

Polymers for Advanced Technologies - Tập 16 Số 9 - Trang 675-680 - 2005
An Li1, Junping Zhang1, Aiqin Wang2
1Center for Ecological and Green Chemistry, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, P.R. China
2Centre for Ecological and Green Chemistry, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, P. R. China.

Tóm tắt

AbstractA novel poly(acrylic acid)/sodium humate superabsorbent composite was synthesized by aqueous solution polymerization of acrylic acid using N, N′‐methylenebisacrylamide as a crosslinker and ammonium persulfate as an initiator in the presence of sodium humate. The effects on water absorbency such as initial monomer concentration, degree of neutralization of acrylic acid, amount of crosslinker, initiator and sodium humate, etc. were investigated. The water absorbency of the superabsorbent composite synthesized under optimal synthesis conditions with a sodium humate content of 20% exhibited an absorption of 1268 g H2O/g sample and 93 g H2O/g sample in distilled water and in 0.9 wt% NaCl solution, respectively. Swelling rate and water retention tests were also carried out. The results show that sodium humate, as a kind of functional filler, can enhance comprehensive properties of superabsorbent composite and reduce the product cost significantly. Copyright © 2005 John Wiley & Sons, Ltd.

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Tài liệu tham khảo

10.1002/app.1994.070531115

10.1002/(SICI)1097-4628(19961107)62:6<911::AID-APP7>3.0.CO;2-S

TsubakimotoT ShimomuraT KobabyashiH. Japanese Patent 62 149 335 1987.

MiuraY HiranoK NateT KambayashiT OhtsukaM NagaiT. European Patent 440 2561991.

TanakaH KambayashiT SugiyamaY NagaiT NagataK KubotaK HiranoK. European Patent 501 4821992.

Walker CO. US Patent 4 664 8161987.

10.1016/0169-409X(93)90026-Z

10.1016/0168-3659(91)90072-L

Shimomura T, 1993, Polym. Mater. Sci. Eng, 69, 485

10.1002/1097-4628(20000912)77:11<2480::AID-APP17>3.0.CO;2-T

10.1002/polc.5070230148

10.1002/app.12025

10.1002/1521-3927(20001001)21:15<1032::AID-MARC1032>3.0.CO;2-N

10.1002/1521-3927(20010301)22:6<422::AID-MARC422>3.0.CO;2-R

10.1002/mame.200400010

10.1002/app.20104

10.1002/app.20850

10.1016/j.eurpolymj.2005.01.028

10.1016/S0020-1693(03)00184-1

10.1002/(SICI)1097-4628(19991003)74:1<119::AID-APP14>3.0.CO;2-T

10.1002/(SICI)1097-4628(20000207)75:6<808::AID-APP10>3.0.CO;2-3

10.1002/(SICI)1097-4628(19970516)64:7<1345::AID-APP14>3.0.CO;2-W

10.1016/S0032-3861(03)00728-6

10.1021/ma00084a026

10.1002/(SICI)1097-4628(19970620)64:12<2371::AID-APP12>3.0.CO;2-4

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Polymers for Advanced Technologies

Tập 16 Số 9

675-680

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