• PVC compound for VDE standard wires and cables System 1
PVC compound for VDE standard wires and cables

PVC compound for VDE standard wires and cables

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Loading Port:
Shanghai
Payment Terms:
TT OR LC
Min Order Qty:
-
Supply Capability:
3000 Tons kg/month

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PVC compound for VDE standard wires and cables

I.    Type and application

Type

Product

Application  and Cable Specification

3901N

PVC insulating compound for VDE standard  at 90℃

Used for wires and cables which according  with VDE standard

3921N

PVC jacket compound for VDE standard at 90℃

Used for wires and cables which according  with VDE standard

II.    Productdescription

PVC compound for VDE standard wires andcables, based on PVC resin, is made into granula by mixing, plastification andgranulation with adding plasticizer, stabilizing agent, flame retardant andetc. The products meet various special requirements, such as differenthardness, UV stable, environment friend (RoHs, REACH, PAHs, chlorinated alkanesfree,  phthalate free, and etc.),sub-shine and fog surface, low temperature resistant, PS/ABS transfer proof,rodent-repellent, termite-repellent, and transparent, and etc.

III.  Processing

It is recommended that compound should beprocessed with common extruder having a minimum L/D ratio of 20.

The following temperature(℃)profile of extruder is recommended:

Zone

Zone 1

Zone 2

Zone 3

Zone 4

Head

Die

Temperature  ℃

140

160

170

175

180

175

IV.    Storageand transport

Packaging:25kg/bag, PE membrane inside bag and Kraft outsidebag.

Storage and transport: Avoiding in directsunlight and weathering. The storage place should be in clean, cool, dry, andventilated conditions.

V.     Properties

Table

Item

Unit

Standard  Value

3901N

3921N

Tensile Strength

≥   MPa

16.0

10.0

Elongation at  Break

≥    %

150

150

Impact Brittleness Temperature

  ℃

-15

-20

Volume Resistivity,  at 20℃

≥ Ωm

1.0×1011

1.0×108

Volume Resistance at  working temperature of 90℃

≥ Ωm

1.0×108

-

Dielectric Strength

≥ MV/m

20

18

Hot Deformation

≤    %

30

50

Thermal Stability Time

at 200℃

≥   min

240

240

Thermal Aging

Aging Temperature

135±2

115+2

135±2

115±2

Aging Time

h

14×24

14×24

14×24

14×24

Tensile Strength after aging

≥   MPa

16.0

10.0

Variation on Tensile Strength

    %

+25

+25

Elongation at Break after aging

≥    %

150

150

Variation on Elongation at Break

  %

+25

+25

Loss of Mass after aging

≤   g/m2

15

15


Q:Are there any specific guidelines for using olive nets on olive trees with specific cultivars?
Yes, there are specific guidelines for using olive nets on olive trees with specific cultivars. It is important to consider factors such as tree size, canopy density, and fruit ripening time when selecting and installing olive nets. Additionally, the appropriate net mesh size and tension should be chosen to ensure effective protection against birds while allowing sufficient air circulation and light penetration. Consulting with olive tree experts or agricultural extension services can provide more detailed and specific guidelines based on the cultivar and local conditions.
Q:How do olive nets prevent fruit theft in the orchard?
Olive nets prevent fruit theft in the orchard by creating a physical barrier that covers the trees and captures any falling fruit. This makes it difficult for thieves to access the trees and harvest the olives unnoticed. Additionally, the nets also serve as a deterrent as they are visible and make it more challenging for potential thieves to approach the orchard without being detected.
Q:What is the low temperature resistance of plastic PS?
PS:= polystyrene (polystyrene)Material characteristics: the disadvantages are: product brittle, low impact strength, prone to stress cracking, poor heat resistance; heat resistance: 60-70 degrees, compared with other plastics, the characteristics of PS are highly transparent (light transmittance 88%-92%) and surface gloss, easy dyeing, high hardness, good rigidity in addition, there is a good water resistance, chemical corrosion resistance and processability.
Q:Can olive nets be used on olive trees grown in windy areas?
Yes, olive nets can be used on olive trees grown in windy areas. Olive nets are designed to protect the olives from various environmental factors, including wind. They help to reduce wind damage, prevent fruit drop, and improve the overall quality of the olives.
Q:How do olive nets affect the quality of the olives?
Olive nets can significantly impact the quality of olives by providing protection against external factors such as birds, insects, and debris. These nets create a physical barrier that prevents damage to the olives during their growth and ripening stages. This protection helps maintain the integrity of the olives, reducing the chances of bruising, pest infestation, and contamination. As a result, olive nets contribute to producing higher quality olives that are more visually appealing, have better taste, and are suitable for various culinary purposes.
Q:Can olive nets be used on uneven terrain?
Yes, olive nets can be used on uneven terrain. The flexibility and adjustability of olive nets allow them to be used on various types of terrain, including uneven surfaces.
Q:How does an olive net affect the harvesting efficiency?
An olive net significantly increases the harvesting efficiency by capturing the falling olives, preventing them from getting damaged or lost. It enables easy collection of olives by simply gathering the net and separating them from debris. Overall, it minimizes the time and effort required for harvesting, leading to improved efficiency.
Q:Do olive nets require any maintenance during the growing season?
Yes, olive nets require regular maintenance during the growing season. This includes periodically checking and adjusting the nets to ensure they are properly covering the olive trees, removing any debris that may accumulate on the nets, and repairing any damages or tears to maintain their effectiveness. Additionally, it is important to monitor and address any issues related to pests or diseases that may affect the olive crop.
Q:Can olive nets be used for olive trees in subtropical regions?
Yes, olive nets can be used for olive trees in subtropical regions. Olive nets are typically used to protect the olives from birds, pests, and excessive sunlight, regardless of the climate. Subtropical regions may have different weather conditions and pests, but the purpose of the olive nets remains the same, making them suitable for use in these regions as well.
Q:Can olive nets be used for urban olive trees?
Yes, olive nets can be used for urban olive trees. These nets are commonly used to protect the olives from birds and other animals, ensuring a higher yield during harvest. Additionally, they can help to maintain a cleaner and more orderly urban environment by preventing fallen olives from littering the ground.

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