Effect of chemical modification of eggshells powder filled low density polyetylene composites
Eggshells powder filled low density polyethylene (LDPE/ESP) composites were studied. The composites were prepared by using Z-blade mixer at 1800C using a rotor speed of 50 rpm for 6 minutes. Sample of composites were compression moulded, in an electrically heated Hydraulic press. Hot press proced...
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my-unimap-129062011-07-01T02:47:05Z Effect of chemical modification of eggshells powder filled low density polyetylene composites Siti Shuhadah, Md Saleh Eggshells powder filled low density polyethylene (LDPE/ESP) composites were studied. The composites were prepared by using Z-blade mixer at 1800C using a rotor speed of 50 rpm for 6 minutes. Sample of composites were compression moulded, in an electrically heated Hydraulic press. Hot press procedures involved preheating at 1800C for 4 min followed by compression for 2 min at the same temperature and subsequent cooling under pressure for 2 min. It was found that the tensile strength and elongation at break for the composites decreased with the increasing filler loading. Young’s modulus for the composites increases with the increasing filler loading. Then the composites were modified with isophthalic acid (LDPE/ESPI), ethylene diamine-co-isophthalic acid (LSPE/ESPM) and polyethylene-grafted-maleic anhydride (LDPE/ESPPEMAH). It was found that improvement in interfacial adhesion has enhanced the tensile strength and water absorption resistance of LDPE/modified eggshells powder composites compare to LDPE/unmodified eggshells powder composites (LDPE/ESP).Its also increased thermal stability and percent of crystallinity of composites. Better interfacial adhesion between LDPE and eggshells powder are responsible for the improvement of mechanical properties of LDPE/modified eggshells powder composites, as evident by scanning electron microscopy (SEM) on tensile fracture surface of the composites. Universiti Malaysia Perlis 2010 Thesis en http://dspace.unimap.edu.my/123456789/12906 http://dspace.unimap.edu.my:80/xmlui/bitstream/123456789/12906/1/p.%201-24.pdf f6388ff330a617ea5d403f416001e344 http://dspace.unimap.edu.my:80/xmlui/bitstream/123456789/12906/2/Full%20Text.pdf ed3f92372e292ceca213fecb3703aa0b http://dspace.unimap.edu.my:80/xmlui/bitstream/123456789/12906/3/license.txt 99f97023998d0562f0d5652bae740a4e Eggshells powder (ESP) Polymer composites Eggshells powder filled low density polyethylene (LDPE/ESP) Polyethylene composites School of Materials Engineering |
| institution |
Universiti Malaysia Perlis |
| collection |
UniMAP Institutional Repository |
| language |
English |
| topic |
Eggshells powder (ESP) Polymer composites Eggshells powder filled low density polyethylene (LDPE/ESP) Polyethylene composites |
| spellingShingle |
Eggshells powder (ESP) Polymer composites Eggshells powder filled low density polyethylene (LDPE/ESP) Polyethylene composites Siti Shuhadah, Md Saleh Effect of chemical modification of eggshells powder filled low density polyetylene composites |
| description |
Eggshells powder filled low density polyethylene (LDPE/ESP) composites were
studied. The composites were prepared by using Z-blade mixer at 1800C using a rotor
speed of 50 rpm for 6 minutes. Sample of composites were compression moulded, in an
electrically heated Hydraulic press. Hot press procedures involved preheating at 1800C for
4 min followed by compression for 2 min at the same temperature and subsequent cooling
under pressure for 2 min. It was found that the tensile strength and elongation at break for
the composites decreased with the increasing filler loading. Young’s modulus for the
composites increases with the increasing filler loading. Then the composites were modified
with isophthalic acid (LDPE/ESPI), ethylene diamine-co-isophthalic acid (LSPE/ESPM) and
polyethylene-grafted-maleic anhydride (LDPE/ESPPEMAH). It was found that improvement in
interfacial adhesion has enhanced the tensile strength and water absorption resistance of
LDPE/modified eggshells powder composites compare to LDPE/unmodified eggshells
powder composites (LDPE/ESP).Its also increased thermal stability and percent of
crystallinity of composites. Better interfacial adhesion between LDPE and eggshells
powder are responsible for the improvement of mechanical properties of LDPE/modified
eggshells powder composites, as evident by scanning electron microscopy (SEM) on
tensile fracture surface of the composites. |
| format |
Thesis |
| author |
Siti Shuhadah, Md Saleh |
| author_facet |
Siti Shuhadah, Md Saleh |
| author_sort |
Siti Shuhadah, Md Saleh |
| title |
Effect of chemical modification of eggshells powder filled low density polyetylene composites |
| title_short |
Effect of chemical modification of eggshells powder filled low density polyetylene composites |
| title_full |
Effect of chemical modification of eggshells powder filled low density polyetylene composites |
| title_fullStr |
Effect of chemical modification of eggshells powder filled low density polyetylene composites |
| title_full_unstemmed |
Effect of chemical modification of eggshells powder filled low density polyetylene composites |
| title_sort |
effect of chemical modification of eggshells powder filled low density polyetylene composites |
| granting_institution |
Universiti Malaysia Perlis |
| granting_department |
School of Materials Engineering |
| url |
http://dspace.unimap.edu.my:80/xmlui/bitstream/123456789/12906/1/p.%201-24.pdf http://dspace.unimap.edu.my:80/xmlui/bitstream/123456789/12906/2/Full%20Text.pdf |
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