Mechanical Properties and Thermal Stability of TiO2 Nanofiller Reinforced Silicone Sealants


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Structural sealants are one of the most essential construction materials due to a rising demand of buildings having glass panel faćades. Silicones are the most preferred base component due to their excellent properties appropriate for structural applications. The effect of titanium dioxide (TiO2) nanofillers on the mechanical and thermal properties of commercially available silicone-based sealants was investigated. The incorporation of 1 wt% and 2 wt% of TiO2 has caused an increase on the elongation at break SSG4000E and SilPruf SCS2000N sealants while an increase on the modulus of resilience was observed at SilPruf SCS2000N with 1wt% TiO2. The elastic modulus was highest at 5 wt% TiO2 for all sealants. Swelling behavior decreased with increasing nanofiller due to the physical crosslinking effect, thus preventing the diffusion of the solvent into the material. Thermal stability also improved with the incorporation of 2 wt% TiO2 as observed in the increase of the onset temperature of decomposition.



Edited by:

Tjokorda Gde Tirta Nindhia, Hendra Suherman, Brian Yuliarto




A. M. S. Mandalihan et al., "Mechanical Properties and Thermal Stability of TiO2 Nanofiller Reinforced Silicone Sealants", Materials Science Forum, Vol. 864, pp. 23-27, 2016

Online since:

August 2016




* - Corresponding Author

[1] T. Ihara, A. Gustavsen and B.J. Jelle, Fatigue resistance of double sealant composed of polyisobutylene sealant adjacent to silicone sealant, Constr. Build. Mater. 66 (2014) 467-475.


[2] T. Ihara, A. Gustavsen and B.J. Jelle, Sealant aging and its correlation with façade reflectance, Constr. Build. Mater. 69 (2014) 390-402.


[3] A. Pantaleo, D. Roma and A. Pellerano, Influence of wood substrate on bonding joint with structural silicone sealants for wood frames applications, Int. J. Adhes. Adhes. 37 (2012) 121-128.


[4] G. González-Pérez and G. Burillo, Modification of silicone sealant to improve gamma radiation resistance by addition of protective agents, Radiat. Phys. Chem. 90 (2013) 98-103.


[5] E. Yilgör and I. Yilgör, Silicone containing copolymers: synthesis, characterization and applications, Prog. Polym. Sci. 39 (2014) 1165-1195.


[6] F. de Buyl, Silicone sealants and structural adhesives, Int. J. Adhes. Adhes. 21 (2001) 411-422.

[7] I.K. Khairullin, A.G. Sinaiskii, I.V. Dal'gren, M.P. Pomanskaya, I.I. Khairullin and M.A. Chebotarev, Sealants based on urethane-siloxane rubbers curable under the action of mositure, Polym. Sci. Ser. D 6 (2013) 72-76.


[8] G. González-Pérez and G. Burillo, Radiation induces grafting of styrene onto silicone sealant films, J. Radioanal. Nucl. Chem. 298 (2013) 1785-1790.


[8] J. Tarrio-Saavedra, J. Lopez-Beceiro, S. Naya, C. Gracia and R. Artiaga, Controversial effects of fumed silica on the curing and thermomechanical properties of epoxy composites, Express Polym. Lett. 4 (2010) 382-395.


[10] D.F. Schmidt and E.P. Giannelis, Silicate dispersion and mechanical reinforcement in polysiloxane/layered silicate nanocomposites, Chem. Mater. 22 (2009) 167-174.


[11] L.C. Sim, C.K. Lee, S.K. Ramanan, H. Ismail and K.N. Seetharamu, Cure characterisitcs, mechanical and thermal properties of Al2O3 and ZnO reinforced silicone rubber, Polym-Plast. Technol. 45 (2007) 301-307.


[12] A. Camenzind, T. Schweizer, M. Sztucki and S.E. Pratsinis, Structure and strength of silica-pdms nanocomposites, Polym. 51 (2010) 1796-1804.


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