000			01623nam a2200205Ia 4500
008			220216s9999 xx 000 0 und d
100			_aJacob M K
245		0	_aLatex serum coated silica filled natural rubber composites
260			_bRubber Science _c2016
300			_a101-117
520			_aIn this study, an attempt was made to reduce the incompatibility between silica and natural rubber by coating the silica particles with the non-rubber constituents present in natural rubber latex serum. The presence of various non rubber constituents like proteins, carbohydrates and lipids on silica surface were confirmed from TGA, UV nad FTIR spectroscopy. RPA studies showed improved processability and cure characteristics for composite prepared from coated silica compared to the unmodified silica. The Payne effect studies of uncures compound showed that the filler-filler interaction ( _G) decreased by 70 per cent than the control at 2 per cent serum coating on silica. The better processability of the modified rubber-silica compound is further evident from the lowering of the elastic torque and minimum rheometric torque (ML) of the respective vulcanizates. The serum modification on silica reduced the viscous shear modulus (G) and loss factor (tan ) by 36 and 33 per cent respectively, compared to the control. The physical properties of the coated system were comparable with that of the control compound.
650			_aLatex
650			_aNatural rubber
650			_aPayne effect
650			_aProcessability
650			_aSilica
700			_aMadhusoodhanan K N
700			_aVarkey J K
942			_cJS
999			_c62079 _d62079