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 ageing programme was once all started in 1958 while 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 the ultimate units of try items have been withdrawn in 1998 giving a complete of forty years of typical growing old. This document info the result of the unreal weathering and ozone publicity assessments and makes comparisons with the implications after common ageing. the next houses have been chosen for tracking the factitious weathering exposures; tensile energy, elongation at holiday, tension at a hundred% elongation, tension at three hundred% elongation and microhardness.

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Extra info for Ageing of Rubber : Accelerated Weathering and Ozone Test Results

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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. 6 24 Hardness (IRHD) Tensile Properties Compound E (styrene butadiene rubber - general purpose) Table 2. 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.

81 -17 Hardness (IRHD) Tensile Properties Compound C (natural rubber - mineral filler loaded) Table 2. 0 0. 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.

6 24 Hardness (IRHD) Tensile Properties Compound E (styrene butadiene rubber - general purpose) Table 2. 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.

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