# Numerical Model for the Prediction of Final Mechanical Properties of EPDM Vulcanized with Peroxides - Part II Results

### Gabriele Milani, Federico Milani

#### Abstract

In the present Part II, the kinetic numerical model discussed in detail in Part I, is applied to the huge amount of experimental data collected by the authors. Rheometer curves are fitted numerically for three different curing temperatures, for all the curing agents investigated at a concentration equal to 150%, which have proved to be the most adequate to obtain optimal crosslinking of the EPDM under consideration. The comparisons with experimental data at three different temperatures allow estimating partial kinetic constants of the model as a function of the absolute temperature, with a direct comparison with simplified formulas provided by the peroxide producers. The application of the numerical kinetic model to a large variety of real scale examples allows a direct validation of the capabilities of the approach proposed, as well as an evaluation of the most suitable production parameters to use in practice (curing time and temperature, concentration and typology of the curing agents) in order to maximize rubber output mechanical properties and crosslink homogeneity, without the need to perform costly experimental campaign.

#### References

- AkzoNobel (2012). Brochure of organic peroxides, available at http://www.akzonobel.com/polymer/
- Hofmann, W., 1989. Rubber Technology Handbook, Hanser Publishers, Munich.
- Milani, G., Galanti, A., Cardelli, C., Milani, F., 2013. Peroxide cross-linking of EPDM for medium voltage cable applications: experimental insight. In: Proc. 183rd Technical Meeting Akron, Ohio Monday, April 22, 2013 - Wednesday, April 24, 2013
- Milani, G., Milani, F., 2010. Journal of Mathematical Chemistry 47(1): 229-267.
- Milani, G., Milani, F., 2011. Journal of Mathematical Chemistry, 48: 530-557.
- Milani, G., Milani, F., 2012a. Computers & Chemical Engineering, 43: 173-190.
- Milani, G., Milani, F., 2012b. Journal of Applied Polymer Science, 124(1): 311-324.
- Milani, G., Milani, F., 2013a. Differential model accounting for reversion for EPDM vulcanized with peroxides. Journal of Mathematical Chemisty, In press.
- Milani, G., Milani, F., 2013b. Polymer Engineering and Science, 53 (2): 353-369.

#### Paper Citation

#### in Harvard Style

Milani G. and Milani F. (2013). **Numerical Model for the Prediction of Final Mechanical Properties of EPDM Vulcanized with Peroxides - Part II Results** . In *Proceedings of the 3rd International Conference on Simulation and Modeling Methodologies, Technologies and Applications - Volume 1: SIMULTECH,* ISBN 978-989-8565-69-3, pages 66-73. DOI: 10.5220/0004423800660073

#### in Bibtex Style

@conference{simultech13,

author={Gabriele Milani and Federico Milani},

title={Numerical Model for the Prediction of Final Mechanical Properties of EPDM Vulcanized with Peroxides - Part II Results},

booktitle={Proceedings of the 3rd International Conference on Simulation and Modeling Methodologies, Technologies and Applications - Volume 1: SIMULTECH,},

year={2013},

pages={66-73},

publisher={SciTePress},

organization={INSTICC},

doi={10.5220/0004423800660073},

isbn={978-989-8565-69-3},

}

#### in EndNote Style

TY - CONF

JO - Proceedings of the 3rd International Conference on Simulation and Modeling Methodologies, Technologies and Applications - Volume 1: SIMULTECH,

TI - Numerical Model for the Prediction of Final Mechanical Properties of EPDM Vulcanized with Peroxides - Part II Results

SN - 978-989-8565-69-3

AU - Milani G.

AU - Milani F.

PY - 2013

SP - 66

EP - 73

DO - 10.5220/0004423800660073