Products
Type：EA-5555J
ISO 14526-3: (WD10+GF05+MD30),X,T~(WD20+GF15+MD20),X,T
Color：Black
1． characteristic and usage
EA-5555J is a type of phenolic molding compound with excellent heat-resistance and flame-resistance properties. Based on Novolac with inorganic and organic reinforced fibers and other mineral additives, it is mainly used to make coil bobbins, microswitches, relays and other insulation structures It gained the UL94 label. It is suitable for injection molding and transfer molding. The product is in granular form and colored products are available as per customer’s needs.
2． TECHNOLOGICAL PROPERTY（see following table）
No. | Properties | Indexes |
1 | Relative density - | 1.50-1.60 |
2 | Flexural strength MPa | ≥70 |
3 | Stress at break MPa | ≥40 |
4 | Impact strength (notched) kJ/m2 | ≥1.4 |
5 | Impact strength (unnotched) kJ/m2 | ≥5.0 |
6 | Heat deflection temperature (Tf 1.8Mpa) °C | 180-190 |
7 | Flammability(glow bar),BH - | ≤BH2-10 |
8 | Test of flammability 1.6mm | V-0 |
9 | Volume resistivity Ω.cm | 1011-1013 |
10 | Surface resistivity Ω | 1011-1013 |
11 | Electric strength kV/mm | ≥10 |
12 | Proof tracking index - | ≥175 |
13 | Dissipation factor (1MHz) - | 0.02-0.10 |
14 | Moulding shrinkage % | 0.50-0.70 |
15 | Water absorbency mg | 30-50 |
16 | Fluidity (Raschig) mm | 60-200 |
17 | Arc resistance performance level category - | 5 |
Notes: 1,The indexes of fluidity (Raschig) and shrinkage are determined by the seller and buyer. They are only for reference. 2, Test specimens for determination are compression molded. 3, Data in the table are determined according to ISO 14526-2 ,Test of flammabilty and Arc resistance performance level category are determined according to UL94 and ASTM D495 respectively.
3． Moulding condition for COMPRESSION( for reference )
Preheating Condition | Curing Condition | |||
Temperature °C | Time min | Temperature °C | Pressure MPa | Curing Time min/mm |
105-125 | 10-20 | 165-175 | 25-40 | 1.0 |
Note：After moulding material is preheated, must join the mould 2-10 second then exhaust air in mould to add again to press.
4． Moulding condition for INJECTION( for reference )
Barrel temp. °C | Mould temp. °C | Injection pressure MPa | Keeping pressure MPa | Keep time s/mm | ||
Nozzle | Inlet | Fixed mould | Moving mould | |||
90-100 | 70-80 | 165-175 | 170-180 | 80-160 | 100-200 | 20-30 |
5． Package and storage
The products should be packed in moisture-proof liner bags to keep dry; the net weight of product is 25kg. On the bag, the type, batch number, weight and manufacture date of product should be marked.
The products should be prevented from moisture and heat. They should be stored in cool and dry warehouse. They should be kept away form fire, warm air and sunlight. The product storage life is one year. If the products are out of the storage limit, the another tests should be done, and then the qualified products still can be used.
