Mechanical Properties, Swelling Behavior and Morphology Properties of Dynamic Vulcanized Low Density Polyethylene/Natural Rubber/Water Hyacinth Fibers Composites

2014 ◽  
Vol 679 ◽  
pp. 184-188
Author(s):  
Soo Jin Tan ◽  
A.G. Supri

The effect of dynamic vulcanization and fiber loading on properties of low density polyethylene (LDPE)/natural rubber (NR)/water hyacinth fibers (WHF) were investigated. In this study, the vulcanized thermoplastics were obtained by in situ dynamic curing of LDPE/NR/WHF composites. The LDPE/NR/WHF composites with different fiber loading were prepared by using Brabender mixer at 180 °C with the rotor speed of 50 rpm. The results showed that dynamic vulcanized LDPE/NR/WHF composites gave a higher tensile strength, Young’s modulus, elongation at break but lower molar sorption than unvulcanized LDPE/NR/WHF composites. The SEM micrographs also displayed better fibers dispersion and the crosslink formation in dynamic vulcanized LDPE/NR/WHF composites indicated better interfacial bonding among fibers and matrix compared to unvulcanized LDPE/NR/WHF composites.

2015 ◽  
Vol 815 ◽  
pp. 101-105
Author(s):  
Soo Jin Tan ◽  
A.G. Supri ◽  
K.L. Foo ◽  
A.M.M. Al Bakri ◽  
Y.M. Liew ◽  
...  

In this work, the effect of PMMA in low density polyethylene/water hyacinth fibers composites were prepared and characterized in terms of tensile properties and FTIR characteristics. Water hyacinth fibers (WHF) were incorporated into the LDPE matrix with different fiber loading. LDPE/WHF and LDPE/WHFPMMAcomposites were prepared with Z-blade mixer at 180 °C with rotor speed of 50 rpm. The PMMA modified WHF increased the tensile strength and Young’s modulus while reduced the elongation at break of LDPE/WHFPMMAcomposites in comparison with LDPE/WHF composites. The absorption peak at 1736.28 cm-1indicated the presence of ester carbonyl group (C=O) in LDPE/WHFPMMAcomposites.


2013 ◽  
Vol 284-287 ◽  
pp. 87-93 ◽  
Author(s):  
Soo Jin Tan ◽  
A.G. Supri ◽  
Pei Leng Teh

In this work, the effect of PE-g-MAH as compatibilizer in polyethylene/ natural rubber/ water hyacinth fibers composites were prepared and characterized in terms of tensile properties, morphology properties, swelling behavior and FTIR characteristic. Water hyacinth fibers (WHF) was used as reinforced fiber in the composites incorporated into the LDPE/NR matrices with different fiber loading. LDPE/NR/WHF composites were prepared with Z-blade mixer at 180°C with rotor speed of 50 rpm for 10 minutes. The presence of PE-g-MAH increased the tensile strength and Young’s modulus while reduced the elongation at break of LDPE/NR/WHF composites. The molar sorption of the composites decreased as the fiber loading increased. SEM morphology showed a better fiber dispersion and fiber distribution indicated PE-g-MAH improved the interfaces between water hyacinth fiber and LDPE/NR matrices. The absorption peak at 1741.52cm-1indicated ester carbonyl group in LDPE/NR/WHFPE-g-MAHcomposites.


2014 ◽  
Vol 925 ◽  
pp. 339-343
Author(s):  
M.A. Nuradibah ◽  
S.T. Sam ◽  
N.Z. Noriman ◽  
H. Ismail

This study investigates the properties of blends made from low density polyethylene (LDPE) with various levels of thermoplastic soya spent powder (SSP). The thermoplastic TPSSP content was varied from 5 to 20wt % whereas epoxidised natural rubber with 50 mol % (ENR 50) act as compatibilizer to improve the interfacial adhesion between low density polyethylene and thermoplastic TPSSP. The effect of the addition of ENR 50 on the LDPE/thermoplastic TPSSP was measured by using tensile test and thermal behaviour. The tensile strength and elongation at break (Eb) decreased with increasing TPSSP content. However, the addition of ENR 50 resulted in the increment of tensile strength and Eb LDPE/TPSSP blends.


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