Aqueous Dispersion of Rice Husk Powder as a Compatible Filler for Natural Rubber Latex Foam

Article Preview

Abstract:

Rice husk powder (RHP) which is a fibrous agricultural waste is widely used as potential filler, novel adsorbent or coating for dry polymers. However, the compatibility of RHP with natural rubber latex (NRL) is yet to be studied. The main goal of this reported work was to create a method to incorporate RHP with NRL and achieve a compatible dispersion. However the amorphous silica content (acidic nature) in RHP makes it difficult to directly incorporate RHP to NRL compound. In this research, RHP was modified by adding ammonia, distilled water and dispersing agents to make an aqueous compatible alkaline dispersion for NRL. Also the particle size of RHP is reduced up to - 300micron to make it more compatible with the NRL. The compatibility of modified RHP is analyzed by sedimentation with time, particle size analyzer, pH and morphology study. The test results supports that modified RHP is more compatible with the NRL compound to obtain a stable foam in NRLF preparation.

You might also be interested in these eBooks

Info:

Periodical:

Pages:

530-536

Citation:

Online since:

December 2012

Export:

Price:

[1] Foo, K.Y. and B.H. Hameed, Utilization of rice husk ash as novel adsorbent: a judicious recycling of the colloidal agricultural waste. Adv Colloid Interface Sci, 2009. 152(1-2): pp.39-47.

DOI: 10.1016/j.cis.2009.09.005

Google Scholar

[2] Khalf, A.I. and A.A. Ward, Use of rice husks as potential filler in styrene butadiene rubber/linear low density polyethylene blends in the presence of maleic anhydride. Materials & Design, 2010. 31(5): pp.2414-2421.

DOI: 10.1016/j.matdes.2009.11.056

Google Scholar

[3] Chand, N., P. Sharma, and M. Fahim, Tribology of maleic anhydride modified rice-husk filled polyvinylchloride. Wear, 2010. 269(11-12): pp.847-853.

DOI: 10.1016/j.wear.2010.08.014

Google Scholar

[4] Chong, E.L.A., Ishak .; Dahlan, H. M.; Abdullah, Ibrahim., Reinforcement of natural rubber/high density polyethylene blends with electron beam irradiated liquid natural rubber-coated rice husk Radiation Physics and Chemistry, 2010. 79(8): pp.906-911.

DOI: 10.1016/j.radphyschem.2010.02.011

Google Scholar

[5] MADGE, E.W., Latex Foam Rubber, (Maclaren & Sons London, Palmerton Publishing Co. Inc., New York). September 1962: p. p. p.16–152.

Google Scholar

[6] Blackley, D.C., Science and Technology, Chapman & Hall, . Polymer Latices: , 1966. 3: pp.229-324.

Google Scholar

[7] Philipse, A.P. and G.H. Koenderink, Sedimentation–diffusion profiles and layered sedimentation of charged colloids at low ionic strength. Adv Colloid Interface Sci, 2003. 100–102(0): pp.613-639.

DOI: 10.1016/s0001-8686(02)00078-7

Google Scholar