Epoxy resin DMD Prepreg is a B-class flexible laminates made of DMD and epoxy resin.
Description
Epoxy resin DMD Prepreg is a B-class flexible laminates made of DMD and epoxy resin.
Specification&Technical Parameter
Properties | Units | Values | |||||||||
Nominal thickness | mm | 0.15 | 0.18 | 0.2 | 0.23 | 0.25 | 0.3 | 0.35 | 0.4 | 0.45 | |
Tolerance | mm | ±0.02 | ±0.025 | ±0.03 | ±0.03 | ±0.03 | ±0.03 | ±0.035 | ±0.040 | ±0.045 | |
Thickness of film | mm | 0.05 | 0.05 | 0.05 | 0.1 | 0.1 | 0.15 | 0.188 | 0.25 | 0.25 | |
Tensile Strength(no bending) | mm | ≥70 | ≥80 | ≥100 | |||||||
Resin content | % | 35±5 | 30±5 | 25±5 | 20±5 | ||||||
Volatile content | % | ≤1.5 | |||||||||
Dielectric strength | mV/m | ≥40 | |||||||||
Breakdown voltage | kV | ≥7 | ≥7 | ≥7 | ≥10 | ≥10 | ≥10 | ≥15 | ≥18 | ≥18 | |
Tensile and shear strength | Mpa | ≥3.0 | |||||||||
Heat shrinkage rate | Crosswise | % | ≤1.0 | ||||||||
Lengthwise | ≤2.0 | ||||||||||
Appearance | Soft,smooth free of any delamination impurity,damage,crack,blister. | ||||||||||
Color | Red,Brown,White | ||||||||||
Thermal rating class | ºC | ≥155 | |||||||||
Characters
Heat-resistance: F Class (155℃)
Good mechanical properties
Application
Pre-impregnated DMD film is used for liner insulation of copper foil (aluminum foil) low voltage coils in dry-type transformer and slot insulation and inter-phase insulation in B ~ F class motors and electrical appliances.
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Jul 31, 2020
Jul 30, 2020
