Таблица 1. Диапазон основных характеристик углеродных паст от различных производителей.
Solids content, wt% | 6 ~ 27 |
Black Carbon, wt% | 5 ~ 10 |
Graphite, wt% | 0.5 ~ 2 |
Particle Size, µm | 1 ~ 38 |
Area resistance, Ω/sq @ 20 µm | 10 ~ 150 |
Volume resistance (Ω·cm) | 5.0·10-3 ~ 1.2·10-1 |
Viscosity, mPa·s | 25 ~ 1800 |
Curing Temperature | 100 oC ~ 180 oC |
Binder | Polyester Cellulose type Rubber system No Binder |
Thinner | Distilled Water Carbitol Acetate Cyclohexanone Xylene, Toluene |
pH | 10 ~ 11.5 |
Shelf life, months at 20oC | 6 ~ 12 |
Application | MnO2 based Ta capacitors Conductive polymer Ta capacitors. |
Таблица 2. Диапазон основных характеристик серебросодержащих паст от различных производителей
Main resin | Polyester Acryl PV-copolymer Epoxy Resin |
Filler | Ag Flake Ag Sphere |
Silver content, wt% | 48 ~ 83 |
Non-Volatile contents, % | 87 ~ 91 |
Sheet resistance, Ω/sq @ 100 g/m2 | 0.008 ~ 0.1 |
Volume resistivity, Ω·cm | 5.0·10-5 ~ 5.5·10-4 |
Adhesion Strength, N/mm2 | 1.0 ~ 15.0 |
Viscosity | 0.5 Pa·s ~ 120.0 Pa·s |
Curing Temperature | 150 oC ~ 260 oC |
Thinner | Butyl Cellosolve Acetate (BCeA) Carbitol Acetate Isoamyl Acetate Cyclohehanone Butyl carbitol acetate/BCeA PMA Diethylene glycol monobutyl ether Ether 18±2% Propylene glycole methyl ether acetat (PMA) / Butyl Acetate |
Shelf life | 3 months ~ 12 months |
Application | MnO2 based Ta capacitors Conductive polymer Ta capacitors. Оrganic and Ta polymer capacitor |