Base on phenolic resin with organic and inorganic glass fiber reinforced, mineral filler and other additives, the product is processed into thermosetting plastics. It has good dimensional stability on high temperature. It is mainly used for heat resistance and high mechanical strength and toughness structural parts, etc. It gains the UL label. It is suitable for injection molding, transfer molding and compression molding. The product is in granular form.
2.Technological property (See following table)
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 is determined according to UL94 .
Relative density:1.75-1.85 Flexural strength : 90-120 Mpa Stress at break : 60-90 Mpa Impact strength(Notched): 2.5-4.5KJ/m2 Impact strength(unnotched): 6.0-8.0KJ/m2 Heat deflection temperature (Tf 1.8MPa) : 190-210 oC Flammability(glow bar), BH : < BH2-5 Test of flammability 1.6mm : V0 Volume resistivity : 1011-1013Ω.cm Surface resistivity: 1011-1013Ω Electric strength : 10-20 KV/mm Proof tracking index : 150-175 Dissipation factor (1MHz) :<0.10 Molding shrinkage: 0.1-0.3% Water absorbency : 10-30 mg Fluidity (Raschig) : 60-180 mm Arc resistance performance level category : 5
3.Moulding condition for compression(for reference)
Notes: After moulding compound is preheated, must join the mould 2-10 seconds then exhaust air in mould to add again to press. 1) Preheating condition Temperature: 105-125 oC Time: 10-20 minutes 2) Curing condition Temperature: 165-175 oC Pressure: 25-40 MPa Time: 1.0 minutes/mm
3) Injection pressure and time Injection pressure: 80-160 MPa Keeping pressure: 100-200 MPa Keeping time: 20-30 seconds/mm
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.