| Autor: |
Dat, Nguyen Huu1 (AUTHOR), Tuan, Vu Manh1 (AUTHOR), Huynh, Mai Duc1 (AUTHOR), Trung, Tran Huu1 (AUTHOR), Trang, Nguyen Thi Thu1 (AUTHOR), Thang, Dam Xuan2 (AUTHOR), Hoa, Kieu Thi Quynh3 (AUTHOR), Giang, Nguyen Vu1 (AUTHOR) vugiang.lit@gmail.com |
| Předmět: |
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| Zdroj: |
Journal of Polymers & the Environment. Dec2022, Vol. 30 Issue 12, p5012-5023. 12p. |
| Abstrakt: |
In this study, a novel recyclable, hydrophobicity foam with excellent oil/water separation based on polyurethane (PU) and polypropylene glycol (PPG) grafted stearic acid (PGGA) has been developed. PGGA was simply synthesized by the esterification of stearic acid and PPG, while the PU/PGGA foam was fabricated by the reaction of PPG and methyl diphenyl diisocynate (MDI) with the addition of PGGA. The PU/PGGA foam exhibits improved oil adsorption capacity, water rejection as well as oil/water selectivity with the increase of PGGA weight loadings. The presence of PGGA at high loading (≥ 5 wt%) reduces the pore size and porosity of PU/PGGA foam due to the high viscosity of PGGA preventing the foam formation reaction. As a result, the oil adsorption capacity of PU/PGGA foam is slightly neglected, nevertheless, the oil/water selectivity is significantly enhanced compared to the original PU foam. The result in this work suggests a simple and cost-effective method with potential in oil removal at large scale application. In this study, novel hydrophobicity agent (PGGA) is developed for enhancing the oil/water separation of polyurethane (PU) foam. At lower weight loading of PGGA (≤ 3 wt%), the PU/PGGA foam exhibits improvement in oil adsorption capacity, water rejection and oil/water separation. Above 5 wt% loading of PGGA, the oil adsorption of PU/PGGA foam is decreased, however, the oil/water selectivity were drastically improved. With this result, the PU/PGGA foam is highly potential for oil removal at large scale application. [ABSTRACT FROM AUTHOR] |
| Databáze: |
GreenFILE |
| Externí odkaz: |
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