Effeds of Coupling Agent on Mechanical Properties of Rice Husk Filled Polyethylene Composite

Zaino!, Nur Syuhada (2011) Effeds of Coupling Agent on Mechanical Properties of Rice Husk Filled Polyethylene Composite. [Final Year Project] (Unpublished)

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Abstract

This project presented the experimental study of the effects of the coupling agents
concentration on the mechanical properties of natural fibers reinforced composites
such as tensile and flexural properties. The chosen natural fiber used in the project is
rice husk flour (RHF), a type of agricultural waste. Based from previous research,
RHF has good potential as reinforcement in thermoplastic composite. RHF was
combined with high density polyethylene (HDPE) as the matrix to create the
composite with the addition of maleic anhydride grafted polyethylene (MAPE) as a
coupling agent. The concentration of coupling agent used in the compounding
process of RHF and HDPE depended on the pre-determined compositions. The
addition of the coupling agents were varied using the percentage varying from
0 wt.%, 2.5 wt.% 5 wt.%, 7.5 wt.% and 10 wt. %. Experiment parameters such
as temperature and moisture content affected the results of the composite. The pallets
produced from extrusion process below 200°C with screw speed 60rpm. The pallets
produced were injection moulded at temperature around 185-200°C to produce
specimens for the tensile tests (ASTM D638) and flexural tests (ASTM D790). Five
good samples were used for each type of compositions of the composites for the
tensile and flexural tests. Based from the conducted tests, it was found that the
tensile strength of the composites when using the concentration of 5 wt. % of MAPE
is the highest value. The highest value for flexural strength however found using
only at 2.5 wt.% ofMAPE.
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Item Type: Final Year Project
Subjects: T Technology > TJ Mechanical engineering and machinery
Departments / MOR / COE: Engineering > Mechanical
Depositing User: Users 2053 not found.
Date Deposited: 30 Sep 2013 16:49
Last Modified: 25 Jan 2017 09:42
URI: http://utpedia.utp.edu.my/id/eprint/7317

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