Interfacial strengthening of polypropylene composites via bimodal porosity in Rice husk ash: Comparison with calcium carbonate reinforcement

2018 ◽  
Vol 136 (4) ◽  
pp. 46989
Author(s):  
R. K. Sharma ◽  
S. Lohia ◽  
V. K. Sharma ◽  
P. C. Kandpal ◽  
K. Balani
2014 ◽  
Vol 38 (3) ◽  
pp. 934-941 ◽  
Author(s):  
Gláucia Oliveira Islabão ◽  
Ledemar Carlos Vahl ◽  
Luís Carlos Timm ◽  
Donald Luiz Paul ◽  
Aline Hernandez Kath

Rice husk ash (RHA) is a by-product from the burning of rice husk that can have favorable effects on the soil in terms of acidity correction. The objectives of this study were to determine the effective calcium carbonate equivalent (ECC) of RHA under field conditions, and establish technical criteria as a basis for estimating the overall ECC of RHA. The 12 treatments of the experiment consisted of 10 RHA dosages (0, 10, 20, 30, 40, 60, 80, 100, 120, and 140 Mg ha-1) and two references, one of which was an absolute control (AC) and the other a plot limed and fertilized according to official recommendations (recommended fertilization - RF). The soil was sampled twice (15 and 210 days after incorporating RHA), in the layers 0.00-0.10 and 0.10-0.20 m, to determine the pH(H2O) and base saturation (V%). The ECC and neutralizing value (NV) of RHA were also determined. The results showed that RHA neutralizes soil acidity, in a faster reaction than conventional limestone, despite a low ECC (around 3 %).


1993 ◽  
Vol 12 (2) ◽  
pp. 107-112 ◽  
Author(s):  
M.Y. Ahmad Fuad ◽  
I. Yaakob ◽  
Z.A. Mohd Ishak ◽  
A.K. Mohd Omar

2013 ◽  
Vol 22 (6) ◽  
pp. 096369351302200
Author(s):  
Vinay Kumar ◽  
Manohar Singh Saini ◽  
Bikram Kishore Kanungo ◽  
Shishir Sinha

Abundantly available rice husk was used to reinforce polypropylene for the development of rice husk polypropylene composites (RHPP) by extrusion and compression molding techniques. Maleic anhydride polypropylene (MAPP) compatibilizer and titanate coupling agent were used to improve the adhesion between rice husk and polypropylene. Effect of fillers such as mica, talc, zirconium oxide, silica and calcium carbonate on thermal properties of RHPP composites was studied. Improvement in heat deflection temperature (HDT), degradation temperature of RHPP was observed but enthalpies of melting and degradation decreased by the addition of these fillers. No significant change in melting point of composites was noticed by the addition of these fillers. Composites thus prepared to have applications in building, automobile, and sport sectors.


1995 ◽  
Vol 27 (10) ◽  
pp. 1002-1015 ◽  
Author(s):  
M Y Ahmad Fuad ◽  
Z Ismail ◽  
M S Mansor ◽  
Z A Mohd Ishak ◽  
A K Mohd Omar

Sign in / Sign up

Export Citation Format

Share Document