Crystal growth in EPDM by chemi-crystallisation as a function of the neutron irradiation dose and flux level

O. A. LAMBRI; L. M. SALVATIERRA; SÁNCHEZ, F. A.; C. L. MATTEO; P. A. SORICHETTI; C. A. CELAURO

NUCLEAR INSTRUMENTS AND METHODS IN PHYSICS RESEARCH B - BEAM INTERACTIONS WITH MATERIALS AND ATOMS

Elsevier

Año: 2005 vol. 237 p. 550 - 562

0168-583X

Neutron irradiation at room temperature were performed on EPDM (ethylene-propylene-diene monomer) in two different nuclear reactors at different fluxes. The effect of the irradiation on the chain arrangement in the polymer, as a function of the dose is discussed. Different crystal concentrations and crystal shapes, developed by chemi-crystallisation, are obtained depending on the neutron dose. In addition the radiation damage degree in the polymer depends both on the dose and the flux level. Dynamical mechanical analysis, swelling studies, X-ray diffraction, differential thermal analysis and infrared studies were employed as experimental techniques.