EPDM insulating rubber compound

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3000 Tons kg/month

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Product Description:

EPDM insulating rubber compound

I.     Type and application

Type

Product

Application

XJ-50A

110 Insulating rubber compound.EVA

Heat  resistant insulating rubber compound for cables and wires,EVA

XJ-30A

90 Insulating rubber compound

Heat  resistant insulating rubber compound for cables and wires

XJ-30B

90 Insulating rubber compound

Heat  resistant insulating rubber compound for 0.6/1KV cables and wires

XJ-30F

90Irradiation cross-linkable  insulating EPDM rubber compound

Heat  resistant EPDM insulating compound which processing in plastic extruder.

XJ-60A

125 Insulating rubber compound

Heat resistant  insulating rubber compound for maximum 1KV cables and wires

II.   Product description

EPDMinsulating rubber compound, based on EPDM rubber, is mixed with variousadditives, and is elaborated in the extra-clean conditions. It has varioustemp. grades. The compound has outstanding performances of vulcanization, processing, physical,mechanical, aging and electrical properties. The compound is complied withQ/320585JSDT058-2003 standard.

III.  Processing

Type

Processing Equipment

Compression ratio

L/D

Processing temp.

Recommended vulcanize  temp.

XJ-50A

XJ-30A

XJ-30B

XJ-60A

Common  rubber extruder

1.111.51

151201

60110

160-200℃

XJ-30F

Common rubber extruder

1.111.51

201251

110180

15-20 megarad irradiation dosage

IV.   Maximum useful shelf life

12 monthsat 20℃, 6months at 30℃.

V.     Properties

Table

Item

XJ-50A

XJ-30A

XJ-30B

XJ-30F

XJ-60A

Standard

Typical

Standard

Typical

Standard

Typical

Standard

Typical

Standard

Typical

Tensile Strength N/mm2

≥6.5

12.0

≥4.2

6.5

≥8.5

11.0

≥4.2

9.6

≥8.5

12.2

Elongation at Break %

≥200

280

≥200

280

≥200

400

≥200

350

≥200

450

Oven  aging  135℃240h

150240h

135168h

135168h

135168h

158168h

Variation on Tensile Strength %

≤±30

+5

±30

-10.8

±30

+5

±30

+5

±30

+9.5

Variation on Elongation at Break   %

≤±30

-6

±30

-10.7

±30

-11

±30

-9.5

±30

-8.0

Dielectric Strength MV/m

≥25

26

≥25

28

≥25

28

≥25

27

≥25

30

Air bomb aging test  127℃40h

Tensile Strength N/mm2

≥6.0

11.3

≥6.0

6.0

Variation  %

-6

±30

-8.3

±30

-8

±30

-4

±30

-6

Elongation at Break %

240

270

Variation  %

≤-30

-15

±30

-3.6

±30

-6

±30

-5

±30

+3

Hot Prolongation  250℃

15min20N/cm

15min20N/cm

15min20N/cm

15min20N/cm

15min20N/cm

Elongation Under Load %

≤100

60

≤175

60

≤175

60

≤175

70

≤175

50

Permanent Elongation after cooling   %

≤25

10

≤15

10

≤15

10

≤15

10

≤15

10

Volume Resistivity at 20Ωm

≥1.0×1010

2.5×1012

≥1.0×1010

1.2×1012

≥1.0×1010

1.5×1013

≥1.0×1010

8.5×1012

≥1.0×1010

2.0×1013

Elastic Modulus

At 150% ElongationN/mm2

≥4.5

5.5

≥4.5

6.5

At 50% Elongation N/mm2

≤7.5

6.1

≤7.5

5.0

Capacitance variation after water immersion  50±2℃

Between one day and seven days   %

≤15

10

≤15

8

Between seven days and fourteen days %

≤5

2

≤5

2

Hardness IRHD

≥80

80

≥80

80

Ozone Resistance and Ozone Concentration

0.025-0.030%30h

2-3.33PPM

0.025-0.030%30h

2-3.33PPM

Surface Variation

Non cracking

Non cracking

Non cracking

Pass

Non cracking

Non cracking

Non cracking

Pass

Heat Pressing Deformation  150℃0.5h

Pressing Depth   %

≤50

25


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Q:How can the strength and toughness of plastic products be tested simply?
Testing of universal material testing machine: tensile strength, elongation at break and bending strengthImpact testing: impact strength
Q:What is plastic and what is the difference between plastic and plastic?
Plastic has good insulation for electricity, heat and sound: electrical insulation, arc resistance, heat preservation, sound insulation, sound absorption, vibration absorption, noise elimination, and outstanding performance.
Q:What is plastic made of?
Plastic: plastic material, the so-called plastic refers to the external force of the deformation occurs, the external force can be maintained after the abolition of the state of force. The elastic modulus of plastic is between rubber and fiber, and it can deform in a certain way. Soft plastics close to rubber, hard plastics, close to fiber.
Q:What are the hazards of plastic products to people?
Plastic bags really bring convenience to our life, but this temporary convenience brings long-term harm
Q:I would like to ask you, I use plastic bags or other plastic bags of food in the refrigerator, and take out a plastic flavor, not only in the freezer, but also in fresh keeping!
My Haier double door refrigerator, air-cooled type, this problem has been a long time, as long as it is plastic products, it will produce a strong plastic taste
Q:What's the way to clean the greasy food on the plastic?
Cleaning of heavy greasy plastic products: same method, but the soaking time should be more than 4 hours.
Q:Can I marinate salted eggs with a plastic bucket?
May notA plastic PVC is often used, it is made of PVC resin, plastic resin increasing agent and anti-aging agent, and non-toxic. But the addition of plasticizer, antioxidant and other accessories are toxic, daily in PVC plasticizer, mainly using terephthalic acid two butyl phthalate two formic acid two ester etc., these chemicals are toxic, lead salt antioxidant stearic acid polyvinyl chloride is toxic.
Q:How do you understand the level of engineering plastics?
LDPE (low density polyethylene): common plastic film, plastic film and so on. High temperature will produce harmful substances, plastic film into the microwave.
Q:Electric kettle is plastic, okay?
Precautions for using an electric kettle1, before use, should check your power voltage and nameplate (at the bottom of the kettle) the target voltage is consistent.2, do not use when water is not added, prevent dry burning.3, ensure that the power supply base and connectors dry, beware of leakage.4, in the power on state, metal objects can not touch the contact in the power base.5, the water should be careful when boiling, in case the water vapor burns.6, in the area of hard water users should regularly for kettle, available vinegar or salt water immersion electrolysis (sodium hypochlorite).7, when the water is boiling, steam comes out very high temperature, should be avoided by hand or touching other parts of the body and a kettle cover and the kettle spout gap between the handle, to avoid burns.
Q:How can plastic paint be used to prevent paint falling off?
Annealing: plastic forming easy to form internal stress, after coating stress concentration place is easy to crack. Annealing or whole face treatment can be used to eliminate stress. Annealing treatment is to ABS plastic molding parts heating to thermal deformation temperature below, that is, 60 degrees, insulation 2h. Due to the adoption of the process requires a lot of equipment investment, therefore, the whole surface processing technology, the configuration can eliminate the internal stress of the plastic solution at room temperature on the plastic surface can be 15 ~ 20min.

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