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China PVC Insulating Compound Granules for Cables - Suppliers & Factory Offering Cost-Effective Solutions
Product Description
PVC insulation material for cables, also known as polyvinyl chloride (PVC) insulation material, is widely used in the wire and cable industry.
1. Overview
PVC insulation material is a composite material mainly composed of polyvinyl chloride resin, which is processed through specific processes by adding stabilizers, plasticizers, fillers, lubricants and other auxiliary materials. It has good electrical insulation performance, chemical corrosion resistance, wear resistance, flame retardancy, and low cost, so it is widely used in power transmission and distribution equipment.
2. Main Features
Electrical Insulation Performance
PVC insulation material has good electrical insulation performance, which can effectively block current conduction, avoid dangers such as electric shock and short circuit.
Chemical Corrosion Resistance
It has good chemical resistance to most acids, bases, salts, and solvents, can maintain its insulation performance, and is not easily corroded by chemical substances.
Wear Resistance
It has high wear resistance and can resist external physical forces and wear, thereby extending the service life of wires and cables.
Flame Retardancy
It usually has good flame retardancy, which means it is not easy to burn in the event of a fire, and produces less smoke and toxic gases during combustion, helping to reduce personal injury and property damage after a fire occurs.
Cost Effectiveness
Compared to other insulation materials, PVC insulation has a lower price and is more cost-effective.
3. Processing Technology
Recommend to use of single-screw extruders with L/D= 20-25.
| Model | Machine Barrel Temperature | Molding Temperature |
|---|---|---|
| RW-7082 / RW-9082 / RW-0582 | 145-170℃ | 165-175℃ |
Parameters
Common Specification Table
| Item | Unit | Technical Requirements | |||
|---|---|---|---|---|---|
| RW-7082 | RW-9082 | RW-0582 | |||
| Density | \ | ≤1.40 | ≤1.40 | ≤1.40 | |
| Tensile Strength | MPa | ≥12.5 | ≥12.5 | ≥12.5 | |
| Elongation at Break | % | ≥180 | ≥180 | ≥180 | |
| Thermal Aging | \ | 80℃*168h | 100℃*240h | 135℃*168h | |
| Tensile Strength Variation | % | ±40 | ±40 | ±40 | |
| Elongation Variation | % | ±40 | ±40 | ±40 | |
| Dielectric Strength | MV/m | ≥20 | ≥20 | ≥20 | |
| 200℃ Thermal Stability | min | ≥80 | ≥120 | ≥120 | |
| 20℃ Volume Resistivity | Ω.m | ≥1x10¹¹ | ≥1x10¹¹ | ≥1x10¹¹ | |
| Brittle Temperature with Impact | ℃ | -30 | -30 | -30 | |
| Oil Resistance (ASTM 902) |
Temperature of Test | ℃ | 70 | 100 | 100 |
| Time of Test | h | 24 | 24 | 24 | |
| Tensile Strength Variation | % | ±40 | ±40 | ±40 | |
| Elongation Variation | % | ±40 | ±40 | ±40 | |
| Hardness | Shore A | ≤75 | ≤75 | ≤75 | |
Detailed Image
Frequently Asked Questions (FAQ)
What are the primary applications of PVC cable insulation material?
PVC cable insulation material is widely used in the wire and cable industry, particularly for power transmission and distribution equipment, due to its excellent electrical insulation properties and durability.
What are the key advantages of using PVC for wire insulation?
Key benefits include high electrical insulation performance, robust chemical corrosion resistance against acids and bases, excellent wear resistance to physical forces, reliable flame retardancy, and superior cost-effectiveness compared to alternative materials.
What equipment and temperature settings are recommended for processing?
We recommend using a single-screw extruder with an L/D ratio of 20-25. The machine barrel temperature should be maintained between 145-170℃, and the molding temperature should range between 165-175℃.
Do you support customized specifications for this PVC insulation?
Yes, we support customizing other specifications to meet your specific technical requirements, physical properties, or environmental standards.
What is the thermal stability rating of the RW series?
Under 200℃ thermal stability testing, the RW-7082 model achieves a rating of ≥80 minutes, while both the RW-9082 and RW-0582 models achieve a rating of ≥120 minutes.