Swelling kinetics and characterization of novel superabsorbent polymer composite based on mung bean starch-filled poly(acrylic acid)-graft-waste polystyrene

2019 ◽  
Vol 23 (2) ◽  
pp. 188-194
Author(s):  
Nurul Fasiha Deraman ◽  
Nur Raihan Mohamed ◽  
Ahmad Zafir Romli
2011 ◽  
Vol 60 (13) ◽  
pp. 1015-1025 ◽  
Author(s):  
Shiv Sankar Bhattacharya ◽  
Kalyan Kumar Sen ◽  
Suma Oommen Sen ◽  
Subham Banerjee ◽  
Santanu Kaity ◽  
...  

2019 ◽  
Vol 801 ◽  
pp. 109-114
Author(s):  
Nurul Fasiha Deraman ◽  
Nur Raihan Mohamed ◽  
Ahmad Zafir Romli

A series of superabsorbent polymer composites (SAPCs) were synthesized via emulsion polymerization of partially neutralized acrylic acid onto polystyrene in the presence of Hectorite (HT) clay powder and mung bean starch (MBSt) using Ammonium Persulphate and N’N,-Methylenebisacrylamide as initiator and crosslinker, respectively. The aim of this study is to prepare a hydrogel composite using Hectorite clay as the reinforcement and to study the effect of Hectorite clay on the thermal properties of the composite. FTIR analysis confirmed that the grafting polymerization took place among acrylic acid, polystyrene, mung bean starch and Hectorite clay. From DSC ad TGA analysis, the glass transition temperature (Tg) increased and the weight loss of the composite reduced upon incorporation of Hectorite clay.


2014 ◽  
Vol 101 ◽  
pp. 231-239 ◽  
Author(s):  
Amatjan Sawut ◽  
Mamatjan Yimit ◽  
Wanfu Sun ◽  
Ismayil Nurulla

2013 ◽  
Vol 805-806 ◽  
pp. 1356-1361
Author(s):  
Pei Qi Wu ◽  
Cheng Zhang Zheng ◽  
Yu Jian He ◽  
Da Zhou Lin ◽  
Zi Jie Wu ◽  
...  

A novel superabsorbent composite has been prepared via aqueous solution polymerization of acrylic acid (AA) in the presence of PVP modified bentonite powder using N,N-methylenebisacrylamide (MBA) as a crosslinker and potassium persulfate (KPS) as an initiator. The amount of PVP modified bentonite in the superabsorbent affected on the ultimate water absorbency was optimized, and the swelling kinetics and water retention ability were systematically investigated. The composite structure was determined by Fourier transform infrared (FTIR) spectroscopy, Thermogravimetric Analyzer (TG) and the scanning electron microscopy (SEM). The results indicate that the superabsorbents with PVP modified bentonite own superior water-swelling capability and water retention ability.


2009 ◽  
Vol 9 (2) ◽  
pp. 1287-1290 ◽  
Author(s):  
Yuqing Ge ◽  
Song Zhang ◽  
Shiying He ◽  
Yu Zhang ◽  
Ning Gu

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