Rubber Seed Oil-Based Polyurethane Composites, Fabrication and Properties Evaluation

Author(s):  
F.E. Okieimen ◽  
I.O. Bakare
2010 ◽  
Vol 31 (9) ◽  
pp. 4274-4280 ◽  
Author(s):  
I.O. Bakare ◽  
F.E. Okieimen ◽  
C. Pavithran ◽  
H.P.S. Abdul Khalil ◽  
M. Brahmakumar

2013 ◽  
Vol 10 (4) ◽  
pp. 343-352 ◽  
Author(s):  
O. Omorogbe ◽  
D. Yawas ◽  
I. Dagwa ◽  
Isiaka Bakare ◽  
M. Isa

Chicken feather particles reinforced rubber seed oil based polyurethane composites were produced and the physico-mechanical and microstructural analyses were studied. Casting method was used to produce the composites with varied weights of Chicken feather particles from 5 to 25wt% in steps of 5 wt%. The composites produced were analyzed for hardness, impact strength, tensile strength, density and water absorption properties according to ASTM standards. The density and impact strength were observed to decrease with increase in percentage weight of the chicken feather particles and this was attributed to the fact that the feathers have lower density than RSO-Polyurethane. Tensile strength and hardness of the composites were found to decrease at the intial stage (0 to 10 wt%) and later started to increase with percentage increase(15 to 25 wt%) of reinforment added. The microstructure reveals that there was a reasonable uniform distribution and bonding of chicken feather particles in the RSO-Polyurethane matrix.


2007 ◽  
Vol 18-19 ◽  
pp. 233-239 ◽  
Author(s):  
F.E. Okieimen ◽  
I.O. Bakare

Polyurethane samples were prepared from rubber seed oil monoglyceride (made by reacting rubber oil with glycerol) and diiosocyanates (hexanethylene and toluene diiosocyanates). Polyurethane composites were made by compression moulding using biofibres; sisal, jute and banana; in random and unidirectional orientations at different fibre lengths and loadings, as reinforcing elements. The composites were characterized in terms of tensile and flexural strengths and moduli, thermal stability and morphology of fractured surface. The values of the measured mechanical properties (tensile and flexural) of the composites were about 3-fold higher than the properties of the unreinforced polyurethane samples, suggesting good reinforcement by the biofibres. The absence of fibre-pull-out on the scanning electron micrographs of the fractured surface provides evidence in support of good adhesion between the biofibres and the polyurethane matrix. The thermal stability of the composites was lower than for the fibre but higher than for the unreinforced polyurethane.


2018 ◽  
Author(s):  
Jilse Sebastian ◽  
Vishnu Vardhan Reddy Mugi ◽  
C. Muraleedharan ◽  
Santhiagu A
Keyword(s):  
Seed Oil ◽  

Author(s):  
Vishal V Patil ◽  
Ranjit S Patil

In this study, different characteristics of sustainable renewable biodiesels (those have a high potential of their production worldwide and in India) were compared with the characteristics of neat diesel to determine optimistic biodiesel for the diesel engine at 250 bar spray pressure. Optimistic fuel gives a comparatively lower level of emissions and better performance than other selected fuels in the study. Rubber seed oil methyl ester was investigated as an optimistic fuel among the other selected fuels such as sunflower oil methyl ester, neem seed oil methyl ester, and neat diesel. To enhance the performance characteristics and to further decrease the level of emission characteristics of fuel ROME, further experiments were conducted at higher spray (injection) pressures of 500 bar, 625 bar, and 750 bar with varying ignition delay period via varying its spray timings such as 8°, 13°, 18°, 23°, 28°, and 33° before top dead center. Spray pressure 250 bar at 23° before top dead center was investigated as an optimistic operating condition where fuel rubber seed oil methyl ester gives negligible hydrocarbon emissions (0.019 g/kW h) while its nitrogen oxide (NOX) emissions were about 70% lesser than those observed with neat diesel, respectively.


2016 ◽  
Vol 66 (1) ◽  
pp. 126-132 ◽  
Author(s):  
Jian Hong ◽  
Xiao-Qin Yang ◽  
Xianmei Wan ◽  
Zhifeng Zheng ◽  
Zoran S Petrović
Keyword(s):  
Seed Oil ◽  

Author(s):  
Elena Gotlib ◽  
Elena Cherezova ◽  
Anh Nguyen Thi Lan ◽  
Alla Sokolova

2019 ◽  
Vol 12 (8) ◽  
pp. 2028-2036 ◽  
Author(s):  
Chanatip Samart ◽  
Surachai Karnjanakom ◽  
Chaiyan Chaiya ◽  
Prasert Reubroycharoen ◽  
Ruengwit Sawangkeaw ◽  
...  

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