Zobrazeno 1 - 7
of 7
pro vyhledávání: '"José A. F. F. Rocco"'
Publikováno v:
Química Nova, Vol 37, Iss 6, Pp 982-988 (2014)
The aim of this work was to synthesize a polyurethane polymer matrix using polyols as a raw material to obtain a binder such as the hydroxyl terminated polybutadiene (HTPB) pre-polymer in energetic material formulation. The soybean-based polyol was t
Externí odkaz:
https://doaj.org/article/d7c14f357c9f430595498295c0815e3e
Publikováno v:
Química Nova, Vol 37, Iss 1, Pp 27-32 (2014)
Composite solid propellants prepared with HTPB prepolymer - Hydroxyl Terminated Polybutadiene, AP - Ammonium Perchlorate as oxidizer and aluminum particles as an additive metal, have characteristics of high electrical resistivity. The loading process
Externí odkaz:
https://doaj.org/article/d0ec8f0cfd5a4c1cbdb1cd891077a857
Publikováno v:
Química Nova, Vol 41, Iss 5, Pp 507-511
The combustion process of triethylaluminum is investigated by means of reactive molecular dynamics simulations using the ReaxFF force field. The behavior of the system in five different temperatures ranging from 2000-4000 K was evaluated. As a pyroph
Externí odkaz:
https://doaj.org/article/63ca9c6aa0a44476aabe8da813e171f7
Autor:
Fausto B. Mendonça, Rene F. B. Gonçalves, Girum S. Urgessa, Koshun Iha, Marcela Domingues, José A. F. F. Rocco
Publikováno v:
Química Nova, Vol 41, Iss 3, Pp 310-314
Prediction of chemical explosions parameters is an important step for blast tests for civil and military applications. Applying computational chemistry and experimental results, this paper presents the decay rate of pressure in air from the epicenter
Externí odkaz:
https://doaj.org/article/828f4a5820264596a675f7269179f2e6
Autor:
Bruno K. V. Iha, Leila Ribeiro dos Santos, Lenilson Afonso dos Santos, Maria Esther Sbampato, José A. F. F. Rocco
Publikováno v:
Química Nova, Vol 42, Iss 1, Pp 1-9
Density, viscosity and calorific values are important physical properties to affect the utilization of biofuel. In this work, mixtures of farnesane and a “jet fuel”, QAv-1, were used to study the variation of density and kinematic viscosity as a
Externí odkaz:
https://doaj.org/article/86e60a9ed6044331b20044777987288b
Autor:
Fausto Mendonca, Girum S. Urgessa, Marcela G. Domingues, Bruno T. Rocco, Leopoldo R. Junior, José A. F. F. Rocco
Reinforced concrete is a common construction material used to support structures around the world. However, the durability of concrete is affected by weathering action, abrasion, and chemical attack and this may lead to reduction in desired material
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6dfa50a598d4e070a38b5f53d3b59a78
https://doi.org/10.21203/rs.3.rs-2753103/v1
https://doi.org/10.21203/rs.3.rs-2753103/v1
In the last few years, the aerospace industry has grown exponentially for both military and civil applications. This book explores the systems engineering, production processes and performance issues which happen constantly during solid rockets opera