Preparation and Characterization of Superabsorbent Polymers Based on Sawdust
Abstract
:1. Introduction
2. Materials and Methods
2.1. Materials
2.2. Preparation of SW-AA-AM Polymer
2.3. Characterization
2.3.1. FTIR Analysis
2.3.2. XRD Analysis
2.3.3. SEM Analysis
2.3.4. Thermal Stability Analysis
2.4. Swelling Performance
2.5. Reusability
2.6. Water Retention Capacity
2.7. Water Retention Performance in Soil or Coal
3. Results and Discussion
3.1. Characterization
3.1.1. FTIR Analysis
3.1.2. XRD Analysis
3.1.3. SEM Analysis
3.1.4. Thermal Stability Analysis
3.2. Mechanism of SW-AA-AM Polymer Production
3.3. Swelling Performance
3.3.1. Effect of MBA Content on the Swelling Rate
3.3.2. Effect of AA Content on the Swelling Rate
3.3.3. Effect of AM Content on the Swelling Rate
3.3.4. Effect of APS Content on the Swelling Rate
3.3.5. Effect of the Neutralization of AA on the Swelling Rate
3.3.6. Effect of Temperature on the Swelling Rate
3.4. Water Retention Capacity
3.5. Reusability
3.6. Water Retention Performance in Soil or Coal
4. Conclusions
Author Contributions
Funding
Conflicts of Interest
References
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Group | MBA/AA (%) | AA (g) | AM:AA | APS/AA (%) | Neutralization Value (%) | Temperature (°C) |
---|---|---|---|---|---|---|
1 | 0.2 | 6 | 1:6 | 0.6 | 50 | 60 |
2 | 0.4 | 6 | 1:6 | 0.6 | 50 | 60 |
3 | 0.6 | 6 | 1:6 | 0.6 | 50 | 60 |
4 | 0.8 | 6 | 1:6 | 0.6 | 50 | 60 |
5 | 1.0 | 6 | 1:6 | 0.6 | 50 | 60 |
6 | 0.6 | 6 | 1:6 | 0.6 | 50 | 60 |
7 | 0.6 | 7 | 1:6 | 0.6 | 50 | 60 |
8 | 0.6 | 8 | 1:6 | 0.6 | 50 | 60 |
9 | 0.6 | 9 | 1:6 | 0.6 | 50 | 60 |
10 | 0.6 | 10 | 1:6 | 0.6 | 50 | 60 |
11 | 0.6 | 8 | 1:4 | 0.6 | 50 | 60 |
12 | 0.6 | 8 | 1:5 | 0.6 | 50 | 60 |
13 | 0.6 | 8 | 1:6 | 0.6 | 50 | 60 |
14 | 0.6 | 8 | 1:7 | 0.6 | 50 | 60 |
15 | 0.6 | 8 | 1:8 | 0.6 | 50 | 60 |
16 | 0.6 | 8 | 1:6 | 0.1 | 50 | 60 |
17 | 0.6 | 8 | 1:6 | 0.2 | 50 | 60 |
18 | 0.6 | 8 | 1:6 | 0.3 | 50 | 60 |
19 | 0.6 | 8 | 1:6 | 0.4 | 50 | 60 |
20 | 0.6 | 8 | 1:6 | 0.5 | 50 | 60 |
21 | 0.6 | 8 | 1:6 | 0.3 | 30 | 60 |
22 | 0.6 | 8 | 1:6 | 0.3 | 40 | 60 |
23 | 0.6 | 8 | 1:6 | 0.3 | 50 | 60 |
24 | 0.6 | 8 | 1:6 | 0.3 | 60 | 60 |
25 | 0.6 | 8 | 1:6 | 0.3 | 70 | 60 |
26 | 0.6 | 8 | 1:6 | 0.3 | 50 | 40 |
27 | 0.6 | 8 | 1:6 | 0.3 | 50 | 50 |
28 | 0.6 | 8 | 1:6 | 0.3 | 50 | 60 |
29 | 0.6 | 8 | 1:6 | 0.3 | 50 | 70 |
30 | 0.6 | 8 | 1:6 | 0.3 | 50 | 80 |
Repeat Times | 1 | 2 | 3 | 4 | 5 |
---|---|---|---|---|---|
SR (g/g) | 738.12 | 676.71 | 537.86 | 396.59 | 327.36 |
r | 1 | 0.92 | 0.73 | 0.54 | 0.44 |
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Zhang, M.; Zhang, S.; Chen, Z.; Wang, M.; Cao, J.; Wang, R. Preparation and Characterization of Superabsorbent Polymers Based on Sawdust. Polymers 2019, 11, 1891. https://doi.org/10.3390/polym11111891
Zhang M, Zhang S, Chen Z, Wang M, Cao J, Wang R. Preparation and Characterization of Superabsorbent Polymers Based on Sawdust. Polymers. 2019; 11(11):1891. https://doi.org/10.3390/polym11111891
Chicago/Turabian StyleZhang, Mingchang, Shaodi Zhang, Zhuoran Chen, Mingzhi Wang, Jinzhen Cao, and Ruoshui Wang. 2019. "Preparation and Characterization of Superabsorbent Polymers Based on Sawdust" Polymers 11, no. 11: 1891. https://doi.org/10.3390/polym11111891