Physicomechanical Properties of Chemically Treated Palm Fiber Reinforced Polypropylene Composites

2009 ◽  
Vol 29 (11) ◽  
pp. 1734-1742 ◽  
Author(s):  
Mominul Haque ◽  
Saiful Islam ◽  
Sakinul Islam ◽  
Nazrul Islam ◽  
Monimul Huque ◽  
...  
2013 ◽  
Vol 465-466 ◽  
pp. 896-900
Author(s):  
Elammaran Jayamani ◽  
Pushparaj Ezhumalai ◽  
Sinin Hamdan ◽  
M. Rezaur Rahman

The effects of chemically treated natural fibres (rice straw and kenaf) embedded as filler into polypropylene matrix were investigated for its sound absorption properties to regulate the industrial noise. In this respect, untreated natural fiber as well as treated natural fiber reinforced with polypropylene composites were fabricated and compared. The composites were prepared by compression moulding technique. Its sound absorbing characteristic was investigated with the Impedance tube, according to a transfer function method. A two microphone setup was fabricated according to American society for testing materials ASTM E1050-10 and it is used to measure sound absorption coefficients of composites in the frequency range of 300 Hz to 2000 Hz. The sound absorption coefficients of the composites increased with the frequency. However, at 1000 Hz, the sound absorption coefficient decreased for all treated samples and then increased again which is due to specific character of natural fibers. This point of inflexion was due to the specific characteristic of natural fiber reflecting sound at around 1000 Hz, but absorbing sound in the middle and high frequencies. The results indicates that the process of chemical treatment enhanced the sound absorption coefficients by 12.5% for rice straw reinforced Polypropylene and 15.78% for kenaf fiber reinforced Polypropylene composites respectively.


2017 ◽  
Vol 24 (4) ◽  
pp. 501-520 ◽  
Author(s):  
Sampathkumar Dhanalakshmi ◽  
Punyamoorthy Ramadevi ◽  
Bennehalli Basavaraju

AbstractAreca fibers have a great prospect in the polymer composite field since they possess superior properties like being light weight, strong and having high strength-to-weight ratio. In addition, areca fibers are biodegradable, non-toxic and eco-friendly and have low maintenance cost. In this research work, areca fibers were subjected to chemical treatments such as NaOH, KMnO4, C6H5COCl and H2C=CHCOOH to reduce the hydrophilic nature of areca fibers and to improve interfacial adhesion between areca fibers and thermoplastic polypropylene matrix, so that areca-polypropylene composites with improved properties can be obtained. The untreated and all chemically treated areca-polypropylene composites with 30%, 40%, 50%, 60% and 70% fiber loadings were fabricated by the compression molding technique. Investigations of tensile, flexural and impact properties of areca fiber reinforced polypropylene composites were done under given fiber loadings by following American Standard for Testing Materials (ASTM) standard procedures. Amongst all untreated and chemically treated areca-polypropylene composites, acrylated areca-polypropylene composites with 60% fiber loading showed higher tensile and flexural strength values and with 50% fiber loading showed higher impact strength values. Hence, chemically treated areca-polypropylene composites can be considered as a very promising material for the fabrication of lightweight material industries.


2012 ◽  
Vol 13 (7) ◽  
pp. 894-898 ◽  
Author(s):  
D. Bachtiar ◽  
S. M. Sapuan ◽  
A. Khalina ◽  
E. S. Zainudin ◽  
K. Z. M. Dahlan

2009 ◽  
Vol 100 (20) ◽  
pp. 4903-4906 ◽  
Author(s):  
Md. Mominul Haque ◽  
Mahbub Hasan ◽  
Md. Saiful Islam ◽  
Md. Ershad Ali

2018 ◽  
Vol 12 (4) ◽  
pp. 4191-4202
Author(s):  
M. N. A. Nordin ◽  
K. Sakamoto ◽  
H. Azhari ◽  
K. Goda ◽  
M. Okamoto ◽  
...  

In this study, the Malaysian oil palm fiber (OPF) was extracted from empty fruit bunch (EFB) and used as a reinforcement of polymer composite materials. 10 wt.% and 25 wt.% of OPF were incorporated with polypropylene (PP) and maleated polypropylene (MAPP) to produce injection-molded composite material. For comparison purpose, virgin PP and polymer composites reinforced with wood fiber (WPC) were also fabricated as benchmark samples. From the tensile test result of 25 wt.% of fiber loading, it produced higher tensile properties of the composites. Moreover, the obtained OPF/PP composites showed comparable properties with the WPC material. The second objective of this study is to investigate the effect of fiber sizes on tensile and impact properties of both WPC and OPF/PP composite. The wood fiber and OPF were mechanically classified into several size ranges by using different mesh sieves and proceeded with the kneading and injection molding. The tensile and impact tests were carried out for each type of sample in order to verify the influence of fiber size on the tensile and impact resistance behavior of the WPC and OPF/PP composites.


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