Idioma:

Study of thermal and mechanical properties of a biocomposite based on natural rubber and 45S5 Bioglass® particles

Silva, M. J. ; Soares, V. O. ; Dias, G. C. ; Santos, R. J. ; Job, A. E. ; Sanches, A. O. ; Malmonge, J. A.

Journal of thermal analysis and calorimetry, 2018, Vol.131 (1), p.735-742 [Periódico revisado por pares]

Dordrecht: Springer Netherlands

Texto completo disponível

Citações Citado por

Enviar para

Título:
Study of thermal and mechanical properties of a biocomposite based on natural rubber and 45S5 Bioglass® particles
Autor: Silva, M. J. ; Soares, V. O. ; Dias, G. C. ; Santos, R. J. ; Job, A. E. ; Sanches, A. O. ; Malmonge, J. A.
Assuntos: Analysis ; Analytical Chemistry ; Bioglass ; Biomedical materials ; Chain mobility ; Chemistry ; Chemistry and Materials Science ; Chloroform ; Composite materials ; Elastic deformation ; Fish ; Inorganic Chemistry ; Measurement Science and Instrumentation ; Mechanical properties ; Mechanical tests ; Modulus of elasticity ; Natural rubber ; Physical Chemistry ; Polymer Sciences ; Stability analysis ; Storage modulus ; Thermal properties ; Thermal stability ; Thermodynamic properties
É parte de: Journal of thermal analysis and calorimetry, 2018, Vol.131 (1), p.735-742
Descrição: Biocomposites based on natural rubber (NR) reinforced with 45S5 Bioglass® (BG) particles were obtained by casting/evaporation method in which NR was dissolved in chloroform and mixed with BG particles. Structural, mechanical, and thermal tests were performed on the biocomposites to evaluate the influence of BG particles on the properties of the NR matrix. Thermogravimetric tests (TG/DTG) of the biocomposites showed decomposition profiles similar to that of NR, and the main peak of the DTG curve was well defined in the temperature range 300–450 °C, characteristic of the structural degradation of NR. The TG analysis also revealed that the thermal stability of the samples increases with the increasing quantity of BG in the biocomposite. DMA tests showed higher storage modulus ( E ′) values for samples with larger amounts of BG; however, above the T g , the E ′ value tended to zero due to the increased mobility of the polymer chains. By analyzing tan δ , the T g values were calculated to be −46 and −50 °C for NR and the biocomposite samples, respectively. Mechanical testing demonstrated that the addition of BG to the biocomposite improved the mechanical properties of the samples. The samples became more rigid with the increasing quantity of BG, as demonstrated by decreasing deformation and the increasing elastic modulus ( Y ) and breaking strength of the samples. The BG particles positively affected the mechanical and thermal properties of the biocomposite, allowing its use in biomedical applications.
Editor: Dordrecht: Springer Netherlands
Idioma: Inglês

Voltar para lista de resultados

Anterior Resultado 10 Avançar Ir para próxima página

Realização: Logos de Redes Sociais:

Study of thermal and mechanical properties of a biocomposite based on natural rubber and 45S5 Bioglass® particles

Silva, M. J. ; Soares, V. O. ; Dias, G. C. ; Santos, R. J. ; Job, A. E. ; Sanches, A. O. ; Malmonge, J. A.

Dordrecht: Springer Netherlands

Buscando em bases de dados remotas. Favor aguardar.