Flexural properties of hemp fibre reinforced polylactide and unsaturated polyester composites

2012 ◽  
Vol 43 (3) ◽  
pp. 519-526 ◽  
Author(s):  
Moyeenuddin A. Sawpan ◽  
Kim L. Pickering ◽  
Alan Fernyhough
Keyword(s):  
Unsaturated Polyester ◽  
Flexural Properties ◽  
Hemp Fibre ◽  
Polyester Composites

The Effect of Fiber Size on the Mechanical Properties of Bertam/Unsaturated Polyester Composites

2015 ◽  
Vol 761 ◽  
pp. 52-56
Author(s):  
M.H. Norhidayah ◽  
Arep Hambali ◽  
M.Y. Yuhazri
Keyword(s):  
Mechanical Properties ◽  
Fiber Length ◽  
Unsaturated Polyester ◽  
Flexural Modulus ◽  
Flexural Properties ◽  
Fiber Size ◽  
Polyester Composites

The aim of this paper was the effects of different fiber size on tensile and flexural properties. Preparation of thermoset unsaturated polyester reinforced with particle Bertam (Eugeissona tristis) was done by hand layout method. Bertam/polyester composites containing Bertam fiber of different sizes, i.e., 15, 120 and 284 μm were prepared. For each composite, eight specimens were tested to evaluate the mechanical properties. It was found that composite reinforced with Bertam having the shortest fiber length, i.e, 15 μm showed the highest tensile and flexural modulus, which were 204.14 MPa and 1826.78 MPa, respectively.

Tensile and Flexural Properties of Casuarina equisetifolia Unsaturated Polyester Composites

2013 ◽  
Vol 812 ◽  
pp. 231-235 ◽  
Author(s):  
Borhan Nurulaini ◽  
Ahmad Zafir Romli ◽  
Mohd Hanafiah Abidin
Keyword(s):  
Tensile Strength ◽  
Unsaturated Polyester ◽  
Flexural Modulus ◽  
Tensile Modulus ◽  
Flexural Properties ◽  
Casuarina Equisetifolia ◽  
Flexural Testing ◽  
Polyester Composites ◽  
Composite Samples ◽  
Weight Loading

This study is to determine the effects of tensile and flexural testing on the C.equisetifolia composite at different loading from 10 % to 50 % weight loading (wt%). The results for all composite samples on tensile strength and tensile modulus decreasing as the weight loadings of C.equisetifolia increases. However, the result from tensile modulus was not significant when the C.equisetifolia weight loadings increase in the composite. In addition, the result obtained from flexural modulus and strength at 20 % of C.equisetifolia weight loading, increased to 3.147GPa and 3.25 MPa respectively, while when C.equisetifolia weight loadings increase the results showed a decrease.

Effect of Filler Size on Flexural Properties of Calcium Carbonate Derived from Clam Shell Filled with Unsaturated Polyester Composites

2013 ◽  
Vol 594-595 ◽  
pp. 57-62 ◽  
Author(s):  
Mahsyuri Yusof ◽  
Muhammad Afifi Amalina
Keyword(s):  
Calcium Carbonate ◽  
Unsaturated Polyester ◽  
Flexural Modulus ◽  
Flexural Properties ◽  
Flexural Test ◽  
Filler Size ◽  
Maximum Value ◽  
Micron Size ◽  
Polyester Composites ◽  
Pass Through

The effect of filler size to the flexural properties of the calcium carbonate (CaCO3) filled with unsaturated polyester (UP) composites have been experimentally investigated. The filler was derived from the shell of local clam known asPolymesoda bengalensis. The ground shells were graded into eight different sizes according to the sieve aperture size of which they could pass through. The sample with 4 wt% CaCO3reinforced with UP was fabricated. Then, the flexural test was done according to the ASTM D790. The result shows that for micron size filler, the flexural modulus was improved as the powder was filled into the UP matrix composite and the maximum value achieved at 574.81 μm mean diameter filler size. However, the infusion of the micron size CaCO3filler into the UP matrix decreases the flexural strength of the composites.

Analysis of mechanical properties of hemp fibre reinforced unsaturated polyester composites

2012 ◽  
Vol 47 (12) ◽  
pp. 1513-1525 ◽  
Author(s):  
Moyeenuddin A Sawpan ◽  
Kim L Pickering ◽  
Alan Fernyhough
Keyword(s):  
Mechanical Properties ◽  
Unsaturated Polyester ◽  
Hemp Fibre ◽  
Polyester Composites

Transverse and Longitudinal Flexural Properties of Untreated and Maleic Anhydride Treated Kenaf Bast Fiber Reinforced Unsaturated Polyester Composites

2016 ◽  
Vol 700 ◽  
pp. 93-101
Author(s):  
S.F. Zhafer ◽  
A.R. Rozyanty ◽  
S.B.S. Shahnaz ◽  
Luqman Musa ◽  
A. Zuliahani
Keyword(s):  
Maleic Anhydride ◽  
Flexural Strength ◽  
Unsaturated Polyester ◽  
Flexural Properties ◽  
Bast Fiber ◽  
Bast Fibers ◽  
Polyester Composites ◽  
Kenaf Bast Fibers ◽  
Kenaf Bast ◽  
Kenaf Bast Fiber

Kenaf bast fibers were prepared into two types as untreated and maleic anhydride (MA) treated. Unsaturated polyester (UPE) resin was used as matrix and applied onto the kenaf bast fibers using hand lay-up method. Transverse and longitudinal flexural properties of unidirectional long kenaf bast fiber reinforced unsaturated polyester composites were performed and the effect of fiber modification and loading were studied. It is found that the transverse flexural strength of both types of composites decreases with the increasing of kenaf loading. Contrary, longitudinal flexural strength of both composites increases with the increasing of kenaf loading. Improved transverse and longitudinal flexural properties are shown by MA treatment of kenaf bast fiber. The interactions between fiber and matrix of fractured flexural surface were also observed by scanning electron microscope (SEM).

KENAF/RECYCLED JUTE NATURAL FIBERS UNSATURATED POLYESTER COMPOSITES: WATER ABSORPTION/DIMENSIONAL STABILITY AND MECHANICAL PROPERTIES

2012 ◽  
Vol 01 (01) ◽  
pp. 1250010 ◽  
Author(s):  
EKHLAS A. OSMAN ◽  
ANATOLI VAKHGUELT ◽  
IGOR SBARSKI ◽  
SAAD A. MUTASHER
Keyword(s):  
Water Absorption ◽  
Hybrid Composites ◽  
Unsaturated Polyester ◽  
Natural Fibers ◽  
Fickian Diffusion ◽  
Flexural Properties ◽  
Thickness Swelling ◽  
Kenaf Fiber ◽  
Polyester Composites ◽  
Kenaf Composites

Effects of water absorption on the flexural properties of kenaf-unsaturated polyester composites and kenaf/recycled jute-unsaturated polyester composites were investigated. In the hybrid composites, the total fiber content was fixed to 20 wt%. In this 20 wt%, the addition of jute fiber varied from 0 to 75%, with increment of 25%. The result demonstrates the water absorption and the thickness swelling increased with increase in immersion time. Effects of water absorption on flexural properties of kenaf fiber composites can be reduced significantly with incorporation of recycled jute in composites formulation. The process of absorption of water was found to approach Fickian diffusion behavior for both kenaf composites and hybrid composites.

Sign in / Sign up

Export Citation Format

Share Document