Electrically Conducting Pullulan-Based Nanobiocomposites Using Carbon Nanotubes and TEMPO Cellulose Nanofibril
Hybrid nanobiocomposite films are prepared using a solution casting by incorporating TEMPO cellulose nanofibrils (TOCNs) and carbon nanotubes (CNTs) into an aqueous solution of pullulan (PULL). The presence of CNT is confirmed by XRD characterization, and the prepared film shows an increased degree...
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-02-01
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| Series: | Nanomaterials |
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| Online Access: | https://www.mdpi.com/2079-4991/11/3/602 |
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| author | Sabina Yeasmin Jeong Hyun Yeum Byung Chul Ji Jin Hyun Choi Seong Baek Yang |
| author_facet | Sabina Yeasmin Jeong Hyun Yeum Byung Chul Ji Jin Hyun Choi Seong Baek Yang |
| author_sort | Sabina Yeasmin |
| collection | DOAJ |
| description | Hybrid nanobiocomposite films are prepared using a solution casting by incorporating TEMPO cellulose nanofibrils (TOCNs) and carbon nanotubes (CNTs) into an aqueous solution of pullulan (PULL). The presence of CNT is confirmed by XRD characterization, and the prepared film shows an increased degree of crystallinity after the addition of TOCNs and CNT. The maximum degree of crystallinity value is obtained for CNT 0.5 % (59.64%). According to the Fourier-transform infrared spectroscopy, the shifts of the characteristic -OH peak of PULL occurred after the addition of TOCNs and aqueous CNT (3306.39 to 3246.90 cm<sup>−1</sup>), confirming interaction between the TOCNs, CNTs, and PULL matrix. The prepared films show enhanced material properties including higher tensile strength (65.41 MPa at low CNT content (0.5%)), water barrier properties, and reduced moisture susceptibility (5 wt.% CNT shows the lowest value (11.28%)) compared with the neat PULL film. Additionally, the prepared films are almost biodegradable within 64 days and show excellent electrical conductivity (0.001 to 0.015 S/mm for 0.5–5% CNT), which suggests a new approach to transform natural polymers into novel advanced materials for use in the fields of biosensing and electronics. |
| first_indexed | 2024-03-09T06:13:51Z |
| format | Article |
| id | doaj.art-993c7456b5f44732a77db568bbaeab76 |
| institution | Directory Open Access Journal |
| issn | 2079-4991 |
| language | English |
| last_indexed | 2024-03-09T06:13:51Z |
| publishDate | 2021-02-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Nanomaterials |
| spelling | doaj.art-993c7456b5f44732a77db568bbaeab762023-12-03T11:55:48ZengMDPI AGNanomaterials2079-49912021-02-0111360210.3390/nano11030602Electrically Conducting Pullulan-Based Nanobiocomposites Using Carbon Nanotubes and TEMPO Cellulose NanofibrilSabina Yeasmin0Jeong Hyun Yeum1Byung Chul Ji2Jin Hyun Choi3Seong Baek Yang4Department of Biofibers and Biomaterials Science, Kyungpook National University, Daegu 41566, KoreaDepartment of Biofibers and Biomaterials Science, Kyungpook National University, Daegu 41566, KoreaDepartment of Advanced Materials Science and Engineering, Kyungpook National University, Daegu 41566, KoreaDepartment of Biofibers and Biomaterials Science, Kyungpook National University, Daegu 41566, KoreaDepartment of Biofibers and Biomaterials Science, Kyungpook National University, Daegu 41566, KoreaHybrid nanobiocomposite films are prepared using a solution casting by incorporating TEMPO cellulose nanofibrils (TOCNs) and carbon nanotubes (CNTs) into an aqueous solution of pullulan (PULL). The presence of CNT is confirmed by XRD characterization, and the prepared film shows an increased degree of crystallinity after the addition of TOCNs and CNT. The maximum degree of crystallinity value is obtained for CNT 0.5 % (59.64%). According to the Fourier-transform infrared spectroscopy, the shifts of the characteristic -OH peak of PULL occurred after the addition of TOCNs and aqueous CNT (3306.39 to 3246.90 cm<sup>−1</sup>), confirming interaction between the TOCNs, CNTs, and PULL matrix. The prepared films show enhanced material properties including higher tensile strength (65.41 MPa at low CNT content (0.5%)), water barrier properties, and reduced moisture susceptibility (5 wt.% CNT shows the lowest value (11.28%)) compared with the neat PULL film. Additionally, the prepared films are almost biodegradable within 64 days and show excellent electrical conductivity (0.001 to 0.015 S/mm for 0.5–5% CNT), which suggests a new approach to transform natural polymers into novel advanced materials for use in the fields of biosensing and electronics.https://www.mdpi.com/2079-4991/11/3/602pullulantempo cellulose nanofibrilscarbon nanotubesnanocomposite filmthermal and mechanical propertiesbiodegradability |
| spellingShingle | Sabina Yeasmin Jeong Hyun Yeum Byung Chul Ji Jin Hyun Choi Seong Baek Yang Electrically Conducting Pullulan-Based Nanobiocomposites Using Carbon Nanotubes and TEMPO Cellulose Nanofibril Nanomaterials pullulan tempo cellulose nanofibrils carbon nanotubes nanocomposite film thermal and mechanical properties biodegradability |
| title | Electrically Conducting Pullulan-Based Nanobiocomposites Using Carbon Nanotubes and TEMPO Cellulose Nanofibril |
| title_full | Electrically Conducting Pullulan-Based Nanobiocomposites Using Carbon Nanotubes and TEMPO Cellulose Nanofibril |
| title_fullStr | Electrically Conducting Pullulan-Based Nanobiocomposites Using Carbon Nanotubes and TEMPO Cellulose Nanofibril |
| title_full_unstemmed | Electrically Conducting Pullulan-Based Nanobiocomposites Using Carbon Nanotubes and TEMPO Cellulose Nanofibril |
| title_short | Electrically Conducting Pullulan-Based Nanobiocomposites Using Carbon Nanotubes and TEMPO Cellulose Nanofibril |
| title_sort | electrically conducting pullulan based nanobiocomposites using carbon nanotubes and tempo cellulose nanofibril |
| topic | pullulan tempo cellulose nanofibrils carbon nanotubes nanocomposite film thermal and mechanical properties biodegradability |
| url | https://www.mdpi.com/2079-4991/11/3/602 |
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