347/347F High Strength Epoxy Glassfiber laminated sheet (Thermostability is grade F)
This product is a laminated sheet which made with processed non-alkali glass fiber cloth as the backing material, by hot pressing with grade F benzo oxazine resin. It has good mechanical and electrical properties,and flame retardant, especially has high mechanical strength retention and excellent electrical properties under high temperature.Suitable for grade F motor and electrical equipment as high quality insulation structure , has the advantage of good machinability and wide applicability in the similar products.
1.Good mechanical and electrical properties;
2.High mechanical strength retention and
excellent electrical properties under high temperature;
5.Temperature resistance:Grade F;
6.Good Machinability and wide applicability
7.Flame retardant property:UL94 V-0
Compliance With Standards
In accordance with GB/T 1303.4-2009 electrical thermosetting resin industrial hard laminates - Part 4: epoxy resin hard laminates.
Appareance: the surface should be flat, free of bubbles, pits and wrinkles, but other defects that do not affect the use are allowed, such as: scratches, indentation, stains and a few spots.The edge shall be cut neatly, and the end face shall not be delaminated and cracked.
The technical data of 347F is similar to FR5,Suitable for grade F motor and electrical equipment as high quality insulation structure.
Main Performance Index
|2||Water absorption Rate||%||≤0.5||≤0.5|
|3||Vertical bending strength||Normal||MPa||≥440||≥400|
|5||Impact strength (charpy type)||Lengthway no gap||KJ/m²||≥147||≥129|
|Horizontal no gap||≥98||≥77|
|8||Vertical electric strength
（in oil of 90℃±2℃）
|9||Parallel breakdown voltage(1 min in oil of 90℃±2℃）||KV||≥45||≥45|
|10||Dielectric dissiption factor（50Hz)||-||≤0.04||≤0.04|
|11||Volumn Insulation Resistance||Normal||Ω||≥1.0×1012||≥1.0×1012|
|After soaking for 24hours||≥1.0×1010||≥1.0×1010|