Bio-polyurethane Based Nanocomposites Membranes: Synthesis and Characterization
Biopolymer-based nanocomposites are an alternative to replace petroleum-based polymers due to their user-friendliness, biodegradability, abundance, and non-toxicity. Additionally, polymers derived from natural resources have the potential to align with the principles of a circular economy. Castor oi...
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| Format: | Article |
| Language: | English |
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AIDIC Servizi S.r.l.
2025-07-01
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| Series: | Chemical Engineering Transactions |
| Online Access: | https://www.cetjournal.it/index.php/cet/article/view/15340 |
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| author | Elda X.S. Silveira Maria Ingrid R. B. Schiavon Bruno A.B. Francisco Gustavo Doubek Rubens Maciel Filho |
| author_facet | Elda X.S. Silveira Maria Ingrid R. B. Schiavon Bruno A.B. Francisco Gustavo Doubek Rubens Maciel Filho |
| author_sort | Elda X.S. Silveira |
| collection | DOAJ |
| description | Biopolymer-based nanocomposites are an alternative to replace petroleum-based polymers due to their user-friendliness, biodegradability, abundance, and non-toxicity. Additionally, polymers derived from natural resources have the potential to align with the principles of a circular economy. Castor oil, a natural, non-toxic, and inedible compound, offers numerous advantages, including low cost, abundant availability, and non-competition with food production. In this study, bio-polyurethane (BPU) nanocomposite membranes were synthesized via in situ polymerization using castor oil, 4,4-diphenylmethane diisocyanate (MDI), 1,4-butanediol (BD), glycerine (Gly), and fumed silica (SiO2) nanoparticles, with varying silica concentrations (0%, 0.5%, and 1%). The membranes were characterized in terms of surface morphology, cross-sectional structure, pore size distribution, surface area, water contact angle, and were compared with commercial polypropylene (PP) membranes. The results showed that while PP membranes exhibited a normal distribution of micropores, mesopores, and macropores, the BPU nanocomposite membranes only contained mesopores. Furthermore, the maximum pore size of the BPU nanocomposite membrane containing 1.0% SiO2 was reduced by more than 80% compared to the membrane containing 0.5% nanoparticles. This work characterizes the structure of a new membrane synthesized from a renewable resource and assesses the effect of silica addition in the characteristics of the membrane as potential substitutes for fossil-derived membranes. |
| format | Article |
| id | doaj-art-0e98d0e9d33f4e7da4dab808ca0f0874 |
| institution | DOAJ |
| issn | 2283-9216 |
| language | English |
| publishDate | 2025-07-01 |
| publisher | AIDIC Servizi S.r.l. |
| record_format | Article |
| series | Chemical Engineering Transactions |
| spelling | doaj-art-0e98d0e9d33f4e7da4dab808ca0f08742025-08-20T03:15:35ZengAIDIC Servizi S.r.l.Chemical Engineering Transactions2283-92162025-07-01117Bio-polyurethane Based Nanocomposites Membranes: Synthesis and CharacterizationElda X.S. SilveiraMaria Ingrid R. B. SchiavonBruno A.B. FranciscoGustavo DoubekRubens Maciel FilhoBiopolymer-based nanocomposites are an alternative to replace petroleum-based polymers due to their user-friendliness, biodegradability, abundance, and non-toxicity. Additionally, polymers derived from natural resources have the potential to align with the principles of a circular economy. Castor oil, a natural, non-toxic, and inedible compound, offers numerous advantages, including low cost, abundant availability, and non-competition with food production. In this study, bio-polyurethane (BPU) nanocomposite membranes were synthesized via in situ polymerization using castor oil, 4,4-diphenylmethane diisocyanate (MDI), 1,4-butanediol (BD), glycerine (Gly), and fumed silica (SiO2) nanoparticles, with varying silica concentrations (0%, 0.5%, and 1%). The membranes were characterized in terms of surface morphology, cross-sectional structure, pore size distribution, surface area, water contact angle, and were compared with commercial polypropylene (PP) membranes. The results showed that while PP membranes exhibited a normal distribution of micropores, mesopores, and macropores, the BPU nanocomposite membranes only contained mesopores. Furthermore, the maximum pore size of the BPU nanocomposite membrane containing 1.0% SiO2 was reduced by more than 80% compared to the membrane containing 0.5% nanoparticles. This work characterizes the structure of a new membrane synthesized from a renewable resource and assesses the effect of silica addition in the characteristics of the membrane as potential substitutes for fossil-derived membranes.https://www.cetjournal.it/index.php/cet/article/view/15340 |
| spellingShingle | Elda X.S. Silveira Maria Ingrid R. B. Schiavon Bruno A.B. Francisco Gustavo Doubek Rubens Maciel Filho Bio-polyurethane Based Nanocomposites Membranes: Synthesis and Characterization Chemical Engineering Transactions |
| title | Bio-polyurethane Based Nanocomposites Membranes: Synthesis and Characterization |
| title_full | Bio-polyurethane Based Nanocomposites Membranes: Synthesis and Characterization |
| title_fullStr | Bio-polyurethane Based Nanocomposites Membranes: Synthesis and Characterization |
| title_full_unstemmed | Bio-polyurethane Based Nanocomposites Membranes: Synthesis and Characterization |
| title_short | Bio-polyurethane Based Nanocomposites Membranes: Synthesis and Characterization |
| title_sort | bio polyurethane based nanocomposites membranes synthesis and characterization |
| url | https://www.cetjournal.it/index.php/cet/article/view/15340 |
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