Modifications des propriétés thermiques d’une résine benzoxazine par l’incorporation d’argiles

Details

Supervisors

Bailly, Christian ; Horion, Jérémy

Faculty

Ecole polytechnique de Louvain

Degree label

Master [120] : ingénieur civil en chimie et science des matériaux

Abstract

enThe benzoxazine resins properties are known since twenty years only and they are already used in many sectors due to their interesting aspects. This master thesis is focused on the thermal properties of the T-DDM, a new benzoxazine resin. Different products are added in benzoxazines with results on different properties. Two different additives are added to the resin in this master thesis, the cloisite 10 A and the halloysite. The first one is a lamellar clay modified by the insertion of cations between the different layers. The second one is a clay with similar composition than the layers of the first one but with a tubular structure. The different parameters studied are the effect of the variation of the concentration in clays and the effect of the dispersion in the matrix made of resin. For this last point, different times of use of the ultrasonic bath that served to mix everything have been applied. The effectiveness of this mixing method has been studied, too. The results observed change from one additive to another. The cloisite 10 A is well mixed with inside the resin and its presence in the samples allows for example to increase the fraction of the samples that remains after heating to 800◦C, to decrease the curing temperature and to speed the process. At the opposite, the halloysite cannot be mixed well with the resin and does not show positive influence on the ability to cure samples. However the addition of halloysite increase a bit the resistance to the degradation with temperature increase