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Title: Comparison of nano CaCO3 and flyash filled with styrene butadiene rubber on mechanical and thermal properties
Authors: Mishra, S
Shimpi, N G
Keywords: Nano CaCO3;SBR;Mechanical properties;Swelling index;Flame retardency
Issue Date: Oct-2005
Publisher: CSIR
IPC Code: C08C19/28
Abstract: Different particle sizes (21, 15, 9 nm) of CaCO3 were synthesized by in-situ deposition technique and confirmed by X-ray diffraction method. The nano CaCO3 was added from 0.1 wt % to 0.5 wt % in the styrene butadiene rubber (SBR). Rubber nanocomposties were compounded on two-roll mill and molded in compression molding machine. Mechanical properties such as tensile strength, elongation at break, modulus at 300 % elongation, hardness, specific gravity, swelling index, flame retardency and abrasion resistance were studied. These results were compared with flyash filled SBR. There was an improvement in properties of rubber nanocomposites because of uniform dispersion of nano CaCO3 particles in the matrix that intercalates the rubber chains. Hence degree of crosslinking increases multifold in comparison to commercial CaCO3 and flyash.
Page(s): 744-751
ISSN: 0975-1084 (Online); 0022-4456 (Print)
Appears in Collections:JSIR Vol.64(10) [October 2005]

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