By R.P. Brown, T. Butler, S.W. Hawley
A long term traditional growing older programme was once begun in 1958 while 19 rubber compounds have been uncovered at three destinations. the ultimate units of try out items have been withdrawn in 1998 giving a complete of forty years of common ageing. This file information the result of the bogus weathering and ozone publicity exams and makes comparisons with the implications after ordinary growing older. the next houses have been chosen for tracking the factitious weathering exposures; tensile energy, elongation at holiday, tension at a hundred% elongation, rigidity at three hundred% elongation and microhardness.
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Extra resources for Ageing of Rubber : Accelerated Weathering and Ozone Test Results
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.
12 -1 Hardness (IRHD) Tensile Properties Compound J (butyl rubber - general purpose) Table 2.
24 Ageing of Rubber - Accelerated Weathering and Ozone Test Results APPENDIX 2 WEATHERING RESULTS © Copyright 2001 Rapra Technology Limited 25 26 Ageing of Rubber - Accelerated Weathering and Ozone Test Results Natural Rubber - Standard Compound A (natural rubber - standard) Table 1. 5 29 Hardness (IRHD) Tensile Properties Compound A (natural rubber - standard) Table 2. 0 0 30 60 90 120 150 180 Weathering Period (Days) 30 Ageing of Rubber - Accelerated Weathering and Ozone Test Results Natural Rubber - Good Ageing Compound B (natural rubber - good ageing) Table 1.