MOLDING COMPOUNDS DSV-2, DSV-4
Molding compounds DSV -2 and DSV-4 are manufactured of glass strands impregnated with phenol-formaldehyde binder.
Advantages: high mechanical properties, good heat resistance, easy flowing and dosing provide wide utilization of these materials.
Application: DSV materials are widely used in radio engineering, electrical engineering, aircraft industry, machine building, instrument making industry and also in chemical industry and radio electronics.
High strength details produced of these molding compounds are suitable for operation at temperatures from -196 ?C to + 200?C and in conditions of tropical climate.
|
Properties |
DSV-2 (natural color)
|
DSV-4 (natural color) |
||||
|---|---|---|---|---|---|---|
|
|
L |
O |
P |
L |
O |
P |
|
Nominal length of granules, mm |
6 |
10 |
18 or 20 |
6 |
10 |
18 or 20 |
|
Flexural stress at break, mPa, not less than |
157 |
236 |
296 |
137 |
196 |
265 |
|
Breaking stress at compression, mPa,not less than |
127 |
127 |
127 |
127 |
127 |
127 |
|
Impact strength, kJ/m2 , not less than |
44 |
69 |
79 |
34 |
69 |
88 |
|
Tangent of the loss angle at fr, 106 Hz,not more than |
0.035 |
0.035 |
0.035 |
0.035 |
0.035 |
0.035 |
|
Dielectric constant at frequency 106 Hz, not more than |
7 |
7 |
7 |
7 |
7 |
7 |
|
Volume resistivity, Ohm · m, not less than |
10 10 |
10 10 |
10 10 |
10 10 |
10 10 |
10 10 |
|
Surface resistivity, Ohm, not less than |
10 12 |
10 12 |
10 12 |
10 12 |
10 12 |
10 12 |
|
Dielectric strength at frequency 50Hz, kV/mm, not more than |
14 |
14 |
14 |
14 |
14 |
14 |
|
Binder content, % |
38 ± 2 |
38 ± 2 |
38 ± 2 |
38 ± 2 |
38 ± 2 |
38 ± 2 |
|
Moisture and volatiles content, % |
1,5 ÷ 3 |
1,5 ÷ 3 |
1,5 ÷ 3 |
1,5 ÷ 3 |
1,5 ÷ 3 |
1,5 ÷ 3 |
|
Flowability, s |
4 ÷12 |
4 ÷12 |
4 ÷12 |
4 ÷12 |
4 ÷12 |
4 ÷12 |
|
Fire resistance (category) |
PV-O |
PV-O |
PV-O |
PV-O |
PV-O |
PV-O |
|
Coefficient of smoke generation -at smoldering -at burning |
21-39 61-81 |
21-39 61-81 |
21-39 61-81 |
21-39 61-81 |
21-39 61-81 |
21-39 61-81 |
Packaging
These materials are packed into 15 kg multiwall paper bags with polyethylene inserts.
Guaranteed shelf life: - 6 months since the date of its production.
