Synthesis and properties of a superabsorbent from an ultraviolet‐irradiated waste nameko mushroom substrate and poly(acrylic acid)

Zhang, Mingyue; Cheng, Zhiqiang; Liu, Mengzhu; Zhang, Yongqiang; Hu, Meijuan; Li, Junfeng

doi:10.1002/app.40471

Cited by 9 publications

(9 citation statements)

References 40 publications

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“…According to the data summarized in Table 5, with increasing of the mix  values toward 23.4, the absorbency of the superabsorbent in the solvent-water mixture was close to that in pure water. Similar results have been observed in the superabsorbent/water-solvent systems based on the hydrolyzed gum arabic-acrylic superabsorbent and guar gum-g-poly (sodium acrylate-co-styrene)/attapulgite superabsorbent composites [25,30]. As shown in Fig.…”

Section: Effect Of Various Organic Solvents On Swelling Absorbency Ansupporting

confidence: 89%

Swelling Properties and Environmental Responsiveness of Superabsorbent Composite Based on Starch-G-Poly Acrylic Acid/Organo-Zeolite

Zhang

Zhao

Chen

2016

Journal of Macromolecular Science, Part B

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Star-g-poly (acrylic acid)/organo-zeolite 4A (S-g-PAA/OZ) superabsorbent composite, was prepared by grafting partially neutralized acrylic acid onto starch in the presence of Downloaded by [University Of South Australia Library] at 04:23 22 June 2016 ACCEPTED MANUSCRIPT ACCEPTED MANUSCRIPT 2 organo-zeolite 4A (OZ) as an inorganic component. The morphology was characterized with scanning electron microscopy (SEM). Energy dispersive spectrometer (EDS) analysis revealed the fine distribution of OZ in superabsorbent composite. The swelling kinetics of the composites were characterized by means of a Schott's second-order model. The effect of OZ concentration in the composite on the water absorbency and swelling behavior were tested. The swellingproperties of the composites were evaluated in various environments; pH, salinity, temperature, urea solution, and solvent-water mixtures. The activation energy (ΔE) for water during the swelling process was also determined through Arrhenius plots. The results showed that the proper amount of OZ was beneficial for improvement of the water absorbent capacity and the initial swelling rate in distilled water. The optimum prepared composite, with 10 wt % OZ, possessed the maximum water absorption (511g/g) in distilled water and (521 g/g) in 0.1 wt % urea solution. The results inferred that S-g-PAA/OZ superabsorbent composite can be exploited for agriculture and medical applications.

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Section: Effect Of Various Organic Solvents On Swelling Absorbency Ansupporting

confidence: 89%

Swelling Properties and Environmental Responsiveness of Superabsorbent Composite Based on Starch-G-Poly Acrylic Acid/Organo-Zeolite

Zhang

Zhao

Chen

2016

Journal of Macromolecular Science, Part B

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“…Figure 3c was the results of WR under the condition of high pressure and high temperature. It displays that the WR maintained 37% after centrifugating for 60 min and 0.2% drying at 60 °C for 70 h. WR of the superabsorbent polymer affected by hydrogen bond interaction between the composite and H 2 O molecules as well as Van der Waal’s forces [31]. Large amount of carboxylate groups and hydroxyl containing in SD-PAA led to enhanced chemical interaction, thus strengthening WR .…”

Section: Resultsmentioning

confidence: 99%

Synthesis of a Novel and Salt Sensitive Superabsorbent Hydrogel Using Soybean Dregs by UV-Irradiation

2018

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A biomass based hydrogel soybean dregs-Poly(acrylic acid) (SD-PAA) was synthesized under UV radiation while using agricultural waste soybean dregs. Maximum absorption of SD-PAA is 3587 g·g−1 in distilled water and 302.0 g·g−1 in 150 mM NaCl aqueous solution. Moreover, the influence of granularity, salt solution, and ions in the solutions on water absorption is systematically studied. Sensitivity sequence of the hydrogel to cations was K+ < Na+ < NH4+ < Al3+ < Fe3+ < Mg2+ < Ca2+, and that to anions was PO43− > SO42− > Cl−. Moreover, the experimental results showed that SD-PAA water retention capability remained 37% after centrifugating for 60 min and 0.2% being dried at 60 °C for 70 h. Meanwhile, the swelling data agree well with the pseudo-second-order kinetic model and Fickian diffusion mechanism.

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“…After vibration for 6 h, swelling equilibrium can be reached. 24 The swollen sample was filtered through a 100-mesh nylon bag to separate unabsorbed water and was then weighed. The swelling capacity of the polymer was calculated using the following equation:…”

Section: Physical Characterizationmentioning

confidence: 99%

“…The first one was a rapid decrease within the first 1 h. The observed decrease was attributed to the loss of weak water absorption on the polymer fibers and in the pores. 24 The second stage showed a relatively level trend and occurred from 60 min to 210 min, and this stage is referred to as the ''water retention stage.'' The nearly unchanged water retention was due to the strong water absorption, which was formed by the hydrogen bonding between carboxylate groups in PCA-PAEK polymer and water molecules.…”

Section: Repeated Water Absorbency and Water Retentionmentioning

confidence: 99%

Electrospun carboxylic-functionalized poly(arylene ether ketone) ultrafine fibers

Liu

Wang

Cheng

et al. 2015

High Performance Polymers

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As a high-performance polymer, carboxylic-functionalized poly(arylene ether ketone)s (PCA-PAEK) was electrospun into ultrafine fibers and characterized. To optimize the process, a set of experiments were designed. As a result, the optimum condition was obtained and the polymer concentration was determined as the most important factor. Incidentally, the PCA-PAEK fibers were found to exhibit superabsorbent behavior. In order to investigate processing characteristics, PCA-PAEK fibers fabricated from different solution concentrations were employed and characterized. The results showed that porosity and changes in water contact angle and water absorbency decreased with an increase in concentration. In addition to a high water absorption capacity, the fibers exhibited good water retention and repeated water absorbency as well. The study on kinetics of water absorption and swelling behavior showed that the mechanism was dependent on the polymer concentration from which the fibers were electrospun. Moreover, both dry and wet PCA-PAEK fibers showed high mechanical properties. Due to these properties, the PCA-PAEK ultrafine fibers are potentially useful as a water-absorbent material.

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Synthesis and properties of a superabsorbent from an ultraviolet‐irradiated waste nameko mushroom substrate and poly(acrylic acid)

Cited by 9 publications

References 40 publications

Swelling Properties and Environmental Responsiveness of Superabsorbent Composite Based on Starch-G-Poly Acrylic Acid/Organo-Zeolite

Swelling Properties and Environmental Responsiveness of Superabsorbent Composite Based on Starch-G-Poly Acrylic Acid/Organo-Zeolite

Synthesis of a Novel and Salt Sensitive Superabsorbent Hydrogel Using Soybean Dregs by UV-Irradiation

Electrospun carboxylic-functionalized poly(arylene ether ketone) ultrafine fibers

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