Effects of filler content and various coupling agents on properties of polypropylene/cocoa pod husk biocomposites
Chemical modification plays an important role in enhancing interfacial adhesion in thermoplastic biocomposites. In this study, the cocoa pod husk (CPH) filled polypropylene (PP) biocomposites were prepared using Brabender Plastrograph EC Plus intermixer at temperature of 180oC and rotor speed of 50...
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my-unimap-727062022-12-02T04:34:35Z Effects of filler content and various coupling agents on properties of polypropylene/cocoa pod husk biocomposites Salmah, Husseinsyah, Assoc. Prof. Ir. Dr. Chemical modification plays an important role in enhancing interfacial adhesion in thermoplastic biocomposites. In this study, the cocoa pod husk (CPH) filled polypropylene (PP) biocomposites were prepared using Brabender Plastrograph EC Plus intermixer at temperature of 180oC and rotor speed of 50 rpm. The effect of CPH content and chemical modification using different types of commercial coupling agents (such as, maleated polypropylene (MAPP), methacrylic acid (MAA), sodium dodecyl sulfate (SDS), and 3-mercapropyltrimethoxysilane (MPS)), and new green coupling agents (GCA) developed from virgin coconut oil (GCA-C) and palm oil (GCA-P) on processing torque, tensile properties, water absorption behavior, morphological, thermal and rheological properties of PP/CPH biocomposites were investigated. The results found that the increases of CPH content increased the processing torque, Young’s modulus, water absorption, crystallinity, but reduced the elongation at break and tensile strength of PP/CPH biocomposites. The incorporation of CPH cause the early thermal degradation of PP/CPH biocomposites, but at higher temperature the thermal stability increased with increases of CPH content. Scanning electron microscopy (SEM) evidenced the poor interfacial adhesion between CPH and PP matrix. The increases of CPH content increased the pseudoplastic characteristic, viscosity and activation energy (Ea) of PP/CPH biocomposites. Universiti Malaysia Perlis (UniMAP) Thesis en http://dspace.unimap.edu.my:80/xmlui/handle/123456789/72706 http://dspace.unimap.edu.my:80/xmlui/bitstream/123456789/72706/3/license.txt 8a4605be74aa9ea9d79846c1fba20a33 http://dspace.unimap.edu.my:80/xmlui/bitstream/123456789/72706/1/Page%201-24.pdf c478ef5a7f4f5e5005c21672ee8918ce http://dspace.unimap.edu.my:80/xmlui/bitstream/123456789/72706/2/Full%20text.pdf 10e43675153198bae15c568e9bded6ef http://dspace.unimap.edu.my:80/xmlui/bitstream/123456789/72706/4/Koey%20Seong.pdf c563e4d58eb00d315088e8fc0b3db94e Universiti Malaysia Perlis (UniMAP) Thermoplastic composites Thermoplastics Fillers (Materials) Biocomposite Cocoa pod husk (CPH) Polypropylene (PP) School of Materials Engineering |
| institution |
Universiti Malaysia Perlis |
| collection |
UniMAP Institutional Repository |
| language |
English |
| advisor |
Salmah, Husseinsyah, Assoc. Prof. Ir. Dr. |
| topic |
Thermoplastic composites Thermoplastics Fillers (Materials) Biocomposite Cocoa pod husk (CPH) Polypropylene (PP) |
| spellingShingle |
Thermoplastic composites Thermoplastics Fillers (Materials) Biocomposite Cocoa pod husk (CPH) Polypropylene (PP) Effects of filler content and various coupling agents on properties of polypropylene/cocoa pod husk biocomposites |
| description |
Chemical modification plays an important role in enhancing interfacial adhesion in thermoplastic biocomposites. In this study, the cocoa pod husk (CPH) filled polypropylene (PP) biocomposites were prepared using Brabender Plastrograph EC Plus
intermixer at temperature of 180oC and rotor speed of 50 rpm. The effect of CPH content and chemical modification using different types of commercial coupling agents (such as, maleated polypropylene (MAPP), methacrylic acid (MAA), sodium dodecyl sulfate (SDS), and 3-mercapropyltrimethoxysilane (MPS)), and new green coupling agents (GCA) developed from virgin coconut oil (GCA-C) and palm oil (GCA-P) on processing torque, tensile properties, water absorption behavior, morphological, thermal and rheological properties of PP/CPH biocomposites were investigated. The results found that the increases of CPH content increased the processing torque, Young’s modulus, water absorption, crystallinity, but reduced the elongation at break and tensile strength of PP/CPH biocomposites. The incorporation of CPH cause the early thermal degradation of PP/CPH biocomposites, but at higher temperature the thermal stability increased with
increases of CPH content. Scanning electron microscopy (SEM) evidenced the poor
interfacial adhesion between CPH and PP matrix. The increases of CPH content increased
the pseudoplastic characteristic, viscosity and activation energy (Ea) of PP/CPH
biocomposites. |
| format |
Thesis |
| title |
Effects of filler content and various coupling agents on properties of polypropylene/cocoa pod husk biocomposites |
| title_short |
Effects of filler content and various coupling agents on properties of polypropylene/cocoa pod husk biocomposites |
| title_full |
Effects of filler content and various coupling agents on properties of polypropylene/cocoa pod husk biocomposites |
| title_fullStr |
Effects of filler content and various coupling agents on properties of polypropylene/cocoa pod husk biocomposites |
| title_full_unstemmed |
Effects of filler content and various coupling agents on properties of polypropylene/cocoa pod husk biocomposites |
| title_sort |
effects of filler content and various coupling agents on properties of polypropylene/cocoa pod husk biocomposites |
| granting_institution |
Universiti Malaysia Perlis (UniMAP) |
| granting_department |
School of Materials Engineering |
| url |
http://dspace.unimap.edu.my:80/xmlui/bitstream/123456789/72706/1/Page%201-24.pdf http://dspace.unimap.edu.my:80/xmlui/bitstream/123456789/72706/2/Full%20text.pdf http://dspace.unimap.edu.my:80/xmlui/bitstream/123456789/72706/4/Koey%20Seong.pdf |
| _version_ |
1776104226559098880 |