Ageing of Rubber : Accelerated Weathering and Ozone Test by R.P. Brown, T. Butler, S.W. Hawley

By R.P. Brown, T. Butler, S.W. Hawley

A long term typical aging programme used to be began in 1958 whilst 19 rubber compounds have been uncovered at three destinations. the ultimate units of try items have been withdrawn in 1998 giving a complete of forty years of traditional getting older. This file information the result of the substitute weathering and ozone publicity assessments and makes comparisons with the consequences after normal growing old. the subsequent houses have been chosen for tracking the synthetic weathering exposures; tensile energy, elongation at holiday, tension at a hundred% elongation, pressure at three hundred% elongation and microhardness.

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0 0 30 60 90 120 150 180 Weathering Period (Days) 46 Ageing of Rubber - Accelerated Weathering and Ozone Test Results Styrene Butadiene Rubber - Good Ageing Compound F (styrene butadiene rubber - good ageing) Table 1. 9 Hardness (IRHD) Tensile Properties Compound F (styrene butadiene rubber - good ageing) Table 2. 0 5. 0 0 30 60 90 120 150 180 Weathering Period (Days) 50 Ageing of Rubber - Accelerated Weathering and Ozone Test Results Styrene Butadiene Rubber - General Purpose Compound G (styrene butadiene rubber - general purpose) Table 1.

0 0 30 60 90 120 150 180 Weathering Period (Days) 50 Ageing of Rubber - Accelerated Weathering and Ozone Test Results Styrene Butadiene Rubber - General Purpose Compound G (styrene butadiene rubber - general purpose) Table 1. 66 28 Hardness (IRHD) Tensile Properties Compound G (styrene butadiene rubber - general purpose) Table 2. 2 7. 00 0 30 60 90 120 150 180 Weathering Period (Days) 54 Ageing of Rubber - Accelerated Weathering and Ozone Test Results Styrene Butadiene Rubber - Good Ageing Compound H (styrene butadiene rubber - good ageing) Table 1.

00 0 30 60 90 120 150 180 Weathering Period (Days) 38 Ageing of Rubber - Accelerated Weathering and Ozone Test Results Natural Rubber - Mineral Filler (Heavy Loaded) Compound D (natural rubber - mineral filler (heavy loaded)) Table 1. 55 -12 Hardness (IRHD) Tensile Properties Compound D (natural rubber - mineral filler (heavy loaded)) Table 2. 00 0 30 60 90 120 150 180 Weathering Period (Days) 42 Ageing of Rubber - Accelerated Weathering and Ozone Test Results Styrene Butadiene Rubber - General Purpose Compound E (styrene butadiene rubber - general purpose) Table 1.

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