Tests that can be Carried Out to Assess the Quality of Devulcanised Rubber

2 Tests that can be Carried Out to Assess the Quality of Devulcanised Rubber 

It is also possible to determine the relative degree of crosslink removal by equilibrium swelling using a high-affinity solvent. The greater the volume swell of a particularly sample, the lower the crosslink density of the matrix. 

Physical tests that directly measure the viscosity of a rubber compound can also be useful. A good example of such a test is the one that can be conducted using a rubber process analyser to determine the modulus of a rubber compound. As the crosslinks are removed from a rubber the modulus will be reduced accordingly. If standards are prepared by vulcanising samples to various degrees 

An instrument that functions in a similar way to a rubber analyser is the Mooney viscometer, and this can also be used to measure and assess the extent of devulcanisation. 

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