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EA-7708J
Color:Grey
1.Characteristic
and usage
EA-7708J is a type of amino molding compound with fiberglass . It is suitable
for injection process with good performance, and also for transfer or
compression process. It has excellent electric leakage resistance and
arc resistance, have simultaneously certain impact and heat-resistance.
The appearance of the product submits shape of powder granular. We can
offer all color series of products according to the customer requirements.
It is applied in manufacturing the automatic structural parts, especially
higher environment protective auto inner parts; low-volt electric insulation
parts which need higher impact strength¡¢higher wearable properties¡¢better
heat-resistance¡¢colorful and must be made from thermosetting plastic;
low-volt electric structural parts which need no corrosion to free ammonia
and formaldehyde (mainly preventing the insulation material to corrode
the silver electrode ); accessory of dishware and kitchenware which need
functionality demand including no melting ¡¢no dissolving and affording
high temperature, and ornamental demand which has colorful performance
2.Technological property(see following table)
|
No.
|
Properties
|
Indexes
|
|
1
|
Relative density
|
1.70-1.80
|
|
2
|
Flexural strength MPa
|
50-65
|
|
3
|
Impact strength (notched) kJ/m2
Impact strength (unnotched) kJ/m2
|
1.5-2.2
5.0-6.0
|
|
4
|
Heat distortion temperature ¡ãC
|
160-170
|
|
5
|
Blazing resistance ¡ãC
|
960
|
|
6
|
Insulation resistance W
|
109-1011
|
|
7
|
Dielectric strength (step by step at 90¡ãC)
MV/m
Dielectric strength (short time at 23¡ãC)
MV/m
|
3.0-4.0
6.0-8.0
|
|
8
|
Medium waste factor (1MHz) tan¦Ä
|
0.03-0.10
|
|
9
|
Proof
tracking index
|
0
|
|
10
|
Arc resistance
PLC
|
4
|
|
11
|
Moulding shrinkage %
|
0.40-0.70
|
|
12
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Water absorbency mg
|
10-50
|
|
13
|
Fluidity(Raschig) mm
|
60-180
|
Note:The indexes of fluidity (Raschig) and shrinkage are determined
by the seller and buyer.
3.Moulding condition for testing sample
|
Preheating
Condition
|
Curing
Condition
|
|
Temperature
|
Time
|
Temperature
|
Pressure
|
Curing
Time
|
|
¡ãC
|
min
|
¡ãC
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MPa
|
min/mm
|
|
105-125
|
5-8
|
150-160
|
25-35
|
1.0
|
Note:After moulding material is preheated, must
join the mould 20-40 second then exhaust air in mould to add again to
press.
4.Parameters of injection condition
for the product ( for reference )
|
Barrel
temperture. ¡ãC
|
Mould
temperture ¡ãC
|
Injection
pressure
|
Keeping
pressure MPa
|
Keep
time
|
|
Nozzle
|
Inlet
|
Fixed
mould
|
Moving
mould
|
MPa
|
MPa
|
s/mm
|
|
70-90
|
50-70
|
150-155
|
155-160
|
85-150
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100-200
|
20-30
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5.Package
and storage
This product
is packed the bag of brown paper of lining damp proof paper bag and polybag
or weave plastic bag, net weight is 25kgs. We pack to indicate product
type, batch number and weight, make date sign.
This product is unfit for to be made moist and be heated, should be stored
in the storehouse of dry ventilation, must not be near fiery source and
radiator or by sunlight, store the day that expected from production to
rise to be three month, exceed to store issue, according to function target
requirement, inspect qualified can still use continuously.
Version
ID: EA7708J-2005-2.0
The technical
data in table is used in guiding and suggesting only, these data is the
average that reached from a lot of tests, only for reference. Our company
is subject to newest edition in accordance with product quality unceasing
improvement principle and technical data change, does not inform separately.
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