Preparation and characterization of polyhydroxybutyrate/polycaprolactone nanocomposites
Polyhydroxybutyrate (PHB)/polycaprolactone (PCL)/stearate Mg-Al layered double hydroxide (LDH) nanocomposites were prepared via solution casting intercalation method. Coprecipitation method was used to prepare the anionic clay Mg-Al LDH from nitrate salt solution. Modification of nitrate anions by s...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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Hindawi Publishing Corporation
2014
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| Online Access: | http://psasir.upm.edu.my/id/eprint/34969/1/34969.pdf |
| _version_ | 1825948553858514944 |
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| author | Liau, Cha Ping Ahmad @ Ayob, Mansor Shameli, Kamyar Wan Yunus, Wan Md. Zin Ibrahim, Nor Azowa Zainuddin, Norhazlin Then, Yoon Yee |
| author_facet | Liau, Cha Ping Ahmad @ Ayob, Mansor Shameli, Kamyar Wan Yunus, Wan Md. Zin Ibrahim, Nor Azowa Zainuddin, Norhazlin Then, Yoon Yee |
| author_sort | Liau, Cha Ping |
| collection | UPM |
| description | Polyhydroxybutyrate (PHB)/polycaprolactone (PCL)/stearate Mg-Al layered double hydroxide (LDH) nanocomposites were prepared via solution casting intercalation method. Coprecipitation method was used to prepare the anionic clay Mg-Al LDH from nitrate salt solution. Modification of nitrate anions by stearate anions between the LDH layers via ion exchange reaction. FTIR spectra showed the presence of carboxylic acid (COOH) group which indicates that stearate anions were successfully intercalated into the Mg-Al LDH. The formation of nanocomposites only involves physical interaction as there are no new functional groups or new bonding formed. X-ray diffraction (XRD) and transmission electron microscopy (TEM) indicated that the mixtures of nanocomposites are intercalated and exfoliated types. XRD results showed increasing of basal spacing from 8.66 to 32.97 Å in modified stearate Mg-Al LDH, and TEM results revealed that the stearate Mg-Al LDH layers are homogeneously distributed in the PHB/PCL polymer blends matrix. Enhancement in 300% elongation at break and 66% tensile strength in the presence of 1.0 wt % of the stearate Mg-Al LDH as compare with PHB/PCL blends. Scanning electron microscopy (SEM) proved that clay improves compatibility between polymer matrix and the best ratio 80PHB/20PCL/1stearate Mg-Al LDH surface is well dispersed and stretched before it breaks. |
| first_indexed | 2024-03-06T08:30:53Z |
| format | Article |
| id | upm.eprints-34969 |
| institution | Universiti Putra Malaysia |
| language | English |
| last_indexed | 2024-03-06T08:30:53Z |
| publishDate | 2014 |
| publisher | Hindawi Publishing Corporation |
| record_format | dspace |
| spelling | upm.eprints-349692016-10-11T02:41:09Z http://psasir.upm.edu.my/id/eprint/34969/ Preparation and characterization of polyhydroxybutyrate/polycaprolactone nanocomposites Liau, Cha Ping Ahmad @ Ayob, Mansor Shameli, Kamyar Wan Yunus, Wan Md. Zin Ibrahim, Nor Azowa Zainuddin, Norhazlin Then, Yoon Yee Polyhydroxybutyrate (PHB)/polycaprolactone (PCL)/stearate Mg-Al layered double hydroxide (LDH) nanocomposites were prepared via solution casting intercalation method. Coprecipitation method was used to prepare the anionic clay Mg-Al LDH from nitrate salt solution. Modification of nitrate anions by stearate anions between the LDH layers via ion exchange reaction. FTIR spectra showed the presence of carboxylic acid (COOH) group which indicates that stearate anions were successfully intercalated into the Mg-Al LDH. The formation of nanocomposites only involves physical interaction as there are no new functional groups or new bonding formed. X-ray diffraction (XRD) and transmission electron microscopy (TEM) indicated that the mixtures of nanocomposites are intercalated and exfoliated types. XRD results showed increasing of basal spacing from 8.66 to 32.97 Å in modified stearate Mg-Al LDH, and TEM results revealed that the stearate Mg-Al LDH layers are homogeneously distributed in the PHB/PCL polymer blends matrix. Enhancement in 300% elongation at break and 66% tensile strength in the presence of 1.0 wt % of the stearate Mg-Al LDH as compare with PHB/PCL blends. Scanning electron microscopy (SEM) proved that clay improves compatibility between polymer matrix and the best ratio 80PHB/20PCL/1stearate Mg-Al LDH surface is well dispersed and stretched before it breaks. Hindawi Publishing Corporation 2014 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/34969/1/34969.pdf Liau, Cha Ping and Ahmad @ Ayob, Mansor and Shameli, Kamyar and Wan Yunus, Wan Md. Zin and Ibrahim, Nor Azowa and Zainuddin, Norhazlin and Then, Yoon Yee (2014) Preparation and characterization of polyhydroxybutyrate/polycaprolactone nanocomposites. The Scientific World Journal, 2014. art. no. 572726. pp. 1-9. ISSN 2356-6140; ESSN: 1537-744X https://www.hindawi.com/journals/tswj/2014/572726/abs/ 10.1155/2014/572726 |
| spellingShingle | Liau, Cha Ping Ahmad @ Ayob, Mansor Shameli, Kamyar Wan Yunus, Wan Md. Zin Ibrahim, Nor Azowa Zainuddin, Norhazlin Then, Yoon Yee Preparation and characterization of polyhydroxybutyrate/polycaprolactone nanocomposites |
| title | Preparation and characterization of polyhydroxybutyrate/polycaprolactone nanocomposites |
| title_full | Preparation and characterization of polyhydroxybutyrate/polycaprolactone nanocomposites |
| title_fullStr | Preparation and characterization of polyhydroxybutyrate/polycaprolactone nanocomposites |
| title_full_unstemmed | Preparation and characterization of polyhydroxybutyrate/polycaprolactone nanocomposites |
| title_short | Preparation and characterization of polyhydroxybutyrate/polycaprolactone nanocomposites |
| title_sort | preparation and characterization of polyhydroxybutyrate polycaprolactone nanocomposites |
| url | http://psasir.upm.edu.my/id/eprint/34969/1/34969.pdf |
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