000			01467nam a2200205Ia 4500
008			220216s9999 xx 000 0 und d
100			_aVarkey J K
245		0	_aStudies on the use of 1,2-polybutadiene in microcellular soles
260			_bIndian Journal of Natural Rubber Research _c1989
300			_a13-26
520			_aThe use of 1,2-polybutadiene (1,2-PB) as a substitute for styrene-butadiene rubber (SBR) high styrene resin in conventional microcellular (M.C) sole compounds was studied. Effects of concentration of 1,2-PB filler combinations and concentration of blowing agent on technical properties of microcellular soled prepared from blends of natural rubber (NR) and 1,2-PB are discussed. Cell characteristics of seven selected vulcanizates were studied using a scanning electron microscope(SEM). It was found that blending of 1,2-PB with NR results in higher expansion, lightness, higher flex life and lower blooming in M.C soles. However, other technical properties are slightly inferior to those of M.C soled prepared using SBR-high styrene resin. A combination of china clay, precipitated silica and aluminium silicate in the ratio 60:30:15 is found to be an acceptable filler combination for NR/1,2-PB based M.C soles.
650			_a1,2-polybutadiene
650			_aBlends
650			_aMicrocellular sole
650			_aNatural Rubber
650			_aStyrene-butadiene rubber
700			_aDe P P
700			_aMathew N M
942			_cJS
999			_c69741 _d69741