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Avaliação tribológica dos polímeros NBR, PTFE e PTFE gravitado em contato com aço AISI 52100
(Universidade Federal do Rio Grande do NorteBRUFRNPrograma de Pós-Graduação em Engenharia MecânicaTecnologia de Materiais; Projetos Mecânicos; Termociências, 2009-10-02)
Low cost seals are made of NBR, Nitrile Butadiene Rubber, a family of unsaturated copolymers that is higher resistant to oils the more content of nitrile have in its composition,
although lower its flexibility. In Petroleum ...
Synergistic contribution on flame retardancy by charring production in high-performance PEI/PBT/PTFE ternary blends: The role of PTFE
(Wiley, 2021)
High-performance binary blends between poly(ether imide) (PEI) and flame-retardant poly(butylene terephthalate) (PBT) are modified with 5, 10, and 15 wt% of poly(tetrafluoroethylene) (PTFE) using a two-step melt-processing ...
Surface, thermal, and mechanical properties of composites and nanocomposites of polyurethane/PTFE nanoparticles
(Springer, 2014-07)
Films from blends of polyurethane and nano-polytetrafluoroethylene aqueous dispersions (PU/nanoPTFE) were prepared, and the effect of the addition of different amounts of PTFE nanoparticles (50 nm) was studied. The changes ...
Influência da pressão de contato e velocidade de deslizamento no estudo tribológico de um compósito à base de PTFE
(Universidade Federal do Rio Grande do NorteBrasilUFRNEngenharia Mecânica, 2018-06-08)
The aim of this study is to identify how different conditions of contact pressure and sliding speed influence the tribological behavior of a PTFE composite. In order to compare their behavior, two different materials were ...
Caracterização experimental e simulação computacional das deformações induzidas na fusão e cristalização do PTFE
(Universidade Federal de São CarlosUFSCarPrograma de Pós-Graduação em Ciência e Engenharia de Materiais - PPGCEMCâmpus São Carlos, 2016-03-07)
Polytetrafluoroethylene (PTFE) has excellent properties such as chemical inertness
and useful mechanical properties at high and low temperatures. After melt,
the PTFE viscosity is so high that the extrusion and injection ...
Efeito da adição de PTFE no fluxo de arames tubulares sobre o arco elétrico em soldagem subaquática molhada
(Universidade Federal de Minas GeraisBrasilENG - DEPARTAMENTO DE ENGENHARIA MECÂNICAPrograma de Pós-Graduação em Engenharia MecanicaUFMG, 2021-06-17)
Several studies over the past few years have shown that electrodes coated with agglomerated PTFE (Polytetrafluoroethylene) in air and wet underwater welding applications have good electric arc stability and low diffusible ...