Constante Dielétrica de Alguns Materiais

 

 

                Material                             Constante dielétrica

               Acetona                                    19.5-20.0

               Resina acrílica                          2.7-6.0

               Ar                                               1.0

               Alcool industrial                            16-31

               Pó de Aluminio                         1.6-1.8

               Sulfato de Aluminio                         6

               Asfalto                                       2.5-3.2

               Baquelite                                   4.5 – 7.0

               Cera de abelha                        2.7 - 2.9

               Benzeno, liquido                       2.2 - 2.3

               Betumen                                      2.5 – 3.3

               Carbonato de cálcio                       1.8-2.0

               Óxido de cálcio                              1.8

               Sulfato de cálcio                             5.6

               Dioxido de carbono                        1.6

               Celuloide                                     3-4

               Cimento                                       1.5-2.1

               Carvão em pó                              1.2-1.8

               Café em pó                                  2.4-2.6

               Coca-cola                                    1.1-2.2

               Ebonite                                       2.8 – 4.5

               Resina epoxi                              2.5-6.0

               Alcool etílico                              20 – 27

               Éter Etilico                               4.1 – 4.8

               Fluor                                            2.5-3.0

               Vidro                                           6 - 10

               Glicerine                                    50 - 56

               Açucar granulado                     1.5-2.2

               Óleo pesadol                            2.6-3.0

               Hexano, liquido                        5.8-6.3

               Óxido de ferro                               14.2

               Nitrogenio líquido                          1.4

               Querosene                                    2.8

               Mármore                                    8 – 10

               Mica                                        2.5 – 8.0

               Óleo Mineral                                2.1

               Nylon                                           4-5

               Parafina                                  2.0 – 2.5

               Plexiglass                               3.0 – 3.5

               Polystyreno                            2.2 – 2.5

                Polyvinyl                               3.0 – 3.6

                Porcelana                             3.1 – 6.5

                Cloreto de Potássio                  4.6

                Pó de PVC                               1.4

                Arroz                                        3-8

                Resina                                   2.5 – 3.5

                Areia                                        3-8

                Seda (natural)                          4.5

                Sabão em pó                        1.2-1.5

                Sulfito de sódio                          5

                Vacuo                                     0.99

                Óleo vegetal                         2.5-3.5

                Água                                     48-80

      

                                   

Opinião

O Velho e o Novo (OP166)

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