Effect of Lauric Acid on the Thermal and Mechanical Properties of Polyhydroxybutyrate (PHB)/Starch Composite Biofilms
Polyhydroxybutyrate (PHB) is a biopolymer of natural origin, one of the suitable alternatives for synthetic plastics. However, pure PHB has a high production cost, is relatively brittle, and has poor processability, hence its limited application. Combining PHB with biomass fillers and plasticizers c...
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| Format: | Article |
| Language: | English |
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Wiley
2020-01-01
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| Series: | International Journal of Polymer Science |
| Online Access: | http://dx.doi.org/10.1155/2020/7947019 |
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| author | Joemer A. Adorna Camelle Kaye A. Aleman Ian Lorenzo E. Gonzaga Jamela N. Pangasinan Kim Marie D. Sisican Van Dien Dang Ruey-An Doong Ruby Lynn G. Ventura Jey-R S. Ventura |
| author_facet | Joemer A. Adorna Camelle Kaye A. Aleman Ian Lorenzo E. Gonzaga Jamela N. Pangasinan Kim Marie D. Sisican Van Dien Dang Ruey-An Doong Ruby Lynn G. Ventura Jey-R S. Ventura |
| author_sort | Joemer A. Adorna |
| collection | DOAJ |
| description | Polyhydroxybutyrate (PHB) is a biopolymer of natural origin, one of the suitable alternatives for synthetic plastics. However, pure PHB has a high production cost, is relatively brittle, and has poor processability, hence its limited application. Combining PHB with biomass fillers and plasticizers can significantly improve the properties of the polymer, leading to its commercial usage. In this study, PHB was incorporated with starch (S) as a cheap biomass filler and lauric acid (LA) as a potential plasticizer. The PHB/S/LA composites were prepared using a modified solvent casting method with the incremental addition of LA. The PHB/S ratio was maintained at a ratio of 80/20 (w/w). Physicochemical characterization via EDS, XRD, and FTIR proved that the composite components have blended through nucleation and plasticization processes. The morphology of the PHB/S blends was found to be a heterogeneous matrix, with decreased inhomogeneity upon the addition of LA in the composite. Thermal characterization done by TGA and DSC showed that the thermal properties of PHB/S films improved with the addition of LA. Mechanical tests (UTM) proved that the elastic strain of the films also increased with the addition of LA, although the tensile strength decreased slightly compared to pure PHB/S. Overall, the results of this study provide baseline information on the improvement of PHB-based bioplastics. |
| format | Article |
| id | doaj-art-1e04b2b3a91c4596888a06d4a64fba76 |
| institution | Kabale University |
| issn | 1687-9422 1687-9430 |
| language | English |
| publishDate | 2020-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Polymer Science |
| spelling | doaj-art-1e04b2b3a91c4596888a06d4a64fba762025-02-03T05:51:46ZengWileyInternational Journal of Polymer Science1687-94221687-94302020-01-01202010.1155/2020/79470197947019Effect of Lauric Acid on the Thermal and Mechanical Properties of Polyhydroxybutyrate (PHB)/Starch Composite BiofilmsJoemer A. Adorna0Camelle Kaye A. Aleman1Ian Lorenzo E. Gonzaga2Jamela N. Pangasinan3Kim Marie D. Sisican4Van Dien Dang5Ruey-An Doong6Ruby Lynn G. Ventura7Jey-R S. Ventura8Department of Engineering Science, College of Engineering and Agro-Industrial Technology, University of the Philippines Los Baños, College, Los Baños, Laguna 4031, PhilippinesDepartment of Mining, Metallurgical and Materials Engineering, College of Engineering, University of the Philippines Diliman, Diliman, Quezon City 1101, PhilippinesDepartment of Mining, Metallurgical and Materials Engineering, College of Engineering, University of the Philippines Diliman, Diliman, Quezon City 1101, PhilippinesMaterials Science and Engineering Program, College of Science, University of the Philippines Diliman, Diliman, Quezon City 1101, PhilippinesMaterials Science and Engineering Program, College of Science, University of the Philippines Diliman, Diliman, Quezon City 1101, PhilippinesInstitute of Environmental Engineering, National Chiao Tung University, 1001 University Rd, Hsinchu 30010, TaiwanInstitute of Analytical and Environmental Sciences, National Tsing Hua University, 30013, TaiwanUniversity of the Philippines Rural High School, College of Arts and Science, University of the Philippines Los Baños, Paciano Rizal, 4033 Bay, Laguna, PhilippinesDepartment of Engineering Science, College of Engineering and Agro-Industrial Technology, University of the Philippines Los Baños, College, Los Baños, Laguna 4031, PhilippinesPolyhydroxybutyrate (PHB) is a biopolymer of natural origin, one of the suitable alternatives for synthetic plastics. However, pure PHB has a high production cost, is relatively brittle, and has poor processability, hence its limited application. Combining PHB with biomass fillers and plasticizers can significantly improve the properties of the polymer, leading to its commercial usage. In this study, PHB was incorporated with starch (S) as a cheap biomass filler and lauric acid (LA) as a potential plasticizer. The PHB/S/LA composites were prepared using a modified solvent casting method with the incremental addition of LA. The PHB/S ratio was maintained at a ratio of 80/20 (w/w). Physicochemical characterization via EDS, XRD, and FTIR proved that the composite components have blended through nucleation and plasticization processes. The morphology of the PHB/S blends was found to be a heterogeneous matrix, with decreased inhomogeneity upon the addition of LA in the composite. Thermal characterization done by TGA and DSC showed that the thermal properties of PHB/S films improved with the addition of LA. Mechanical tests (UTM) proved that the elastic strain of the films also increased with the addition of LA, although the tensile strength decreased slightly compared to pure PHB/S. Overall, the results of this study provide baseline information on the improvement of PHB-based bioplastics.http://dx.doi.org/10.1155/2020/7947019 |
| spellingShingle | Joemer A. Adorna Camelle Kaye A. Aleman Ian Lorenzo E. Gonzaga Jamela N. Pangasinan Kim Marie D. Sisican Van Dien Dang Ruey-An Doong Ruby Lynn G. Ventura Jey-R S. Ventura Effect of Lauric Acid on the Thermal and Mechanical Properties of Polyhydroxybutyrate (PHB)/Starch Composite Biofilms International Journal of Polymer Science |
| title | Effect of Lauric Acid on the Thermal and Mechanical Properties of Polyhydroxybutyrate (PHB)/Starch Composite Biofilms |
| title_full | Effect of Lauric Acid on the Thermal and Mechanical Properties of Polyhydroxybutyrate (PHB)/Starch Composite Biofilms |
| title_fullStr | Effect of Lauric Acid on the Thermal and Mechanical Properties of Polyhydroxybutyrate (PHB)/Starch Composite Biofilms |
| title_full_unstemmed | Effect of Lauric Acid on the Thermal and Mechanical Properties of Polyhydroxybutyrate (PHB)/Starch Composite Biofilms |
| title_short | Effect of Lauric Acid on the Thermal and Mechanical Properties of Polyhydroxybutyrate (PHB)/Starch Composite Biofilms |
| title_sort | effect of lauric acid on the thermal and mechanical properties of polyhydroxybutyrate phb starch composite biofilms |
| url | http://dx.doi.org/10.1155/2020/7947019 |
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