Citation
Raju, Gunasunderi and Ratnam, Chantara Thevy and Ibrahim, Nor Azowa and Ab Rahman, Mohamad Zaki and Wan Yunus, Wan Md Zin
(2008)
Enhancement of PVC/ENR Blend Properties by Poly(methyl acrylate) Grafted Oil Palm Empty Fruit Bunch Fiber.
Journal of Applied Polymer Science, 110 (1).
pp. 368-375.
ISSN 0021-8995
Abstract
Effect of oil palm empty fruit bunch(OPEFB) fiber and poly(methyl acrylate) grafted OPEFB on several mechanical properties of poly(vinyl chloride)/epoxidized
natural rubber (PVC/ENR) blends were studied. The
composites were prepared by mixing the fiber and the
PVC/ENR blends using HAKEE Rheomixer at the rotor
speed of 50 rpm, mixing temperature 1508C, and mixing
period of 20 min. The fiber loadings were varied from 0 to
30% and the effect of fiber content in the composites on
their ultimate tensile strength (UTS), Young’s modulus,
elongation at break, flexural modulus, hardness, and impact
strength were determined. An increasing trend was
observed in the Young’s modulus, flexural modulus, and
hardness with the addition of grafted and ungrafted fiber
to the PVC/ENR blends. However the impact strength,UTS, and elongation at break of the composites were found to decrease with the increase in fiber loading. An increase
in elongation at break and UTS and decrease in the flexural
and Young’s modulus was observed with the addition of
PMA-g-OPEFB fiber compared to ungrafted fiber. This observation indicates that grafting of PMA onto OPEFB
impart some flexibility to the blend. The morphology of
cryogenically fractured and tensile fracture surfaces of the
composites, examined by a scanning electron microscope
shows that the adhesion between the fiber and the matrix is
improved upon grafting of the OPEFB fiber.
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