Natural Ageing of Rubber : Changes in Physical Properties by R.P. Brown, T. Butler

By R.P. Brown, T. Butler

A distinct number of long-term ageing info, to be had for the 1st time, from Rapra know-how constrained. This record is an output from the Weathering of Elastomers and Sealants undertaking which types a part of the united kingdom government's division of exchange and Industry's Degradation of fabrics in competitive Environments Programme. Rapra know-how restricted has accomplished a accomplished ordinary getting old and actual checking out programme on 19 rubber compounds, saved in managed stipulations, for a interval of forty years. this can be believed to be the main vast such examine ever conducted. Now, for the 1st time, all of the result of this distinctive programme were released during this file.

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8 Elongation at Break (%) Modulus at 100% (MPa) Modulus at 300% (MPa) 0. 13 4. 7 3. 1 1. 3 5. 4 -26 8. 1 11 -25 18 % Change Styrene Butadiene Rubber - General Purpose 51 Compound E +DUGQHVV &RPSRXQG (  +DUGQHVV ,5+'   7HPSHUDWH &OLPDWH +RW :HW &OLPDWH +RW 'U\ &OLPDWH 7& +:& +'&           1DWXUDO $JHLQJ

0 % Change Natural Rubber - Mineral Filler Loaded 35 Compound C +DUGQHVV &RPSRXQG &  +DUGQHVV ,5+'   7HPSHUDWH &OLPDWH +RW :HW &OLPDWH +RW 'U\ &OLPDWH 7& +:& +'&           1DWXUDO $JHLQJ

3 -32 5. 0 % Change Natural Rubber - Mineral Filler Loaded 35 Compound C +DUGQHVV &RPSRXQG &  +DUGQHVV ,5+'   7HPSHUDWH &OLPDWH +RW :HW &OLPDWH +RW 'U\ &OLPDWH 7& +:& +'&           1DWXUDO $JHLQJ

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