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China PVC Insulating Compound Granules - Reliable Suppliers and Factory for Cable Insulation Materials
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 | |
* Support customizing other specifications
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Frequently Asked Questions (FAQ)
What are the main ingredients of PVC cable insulation material?
PVC insulation material is a composite material mainly composed of polyvinyl chloride resin, processed by adding stabilizers, plasticizers, fillers, lubricants, and other auxiliary materials.
What are the primary performance advantages of PVC cable insulation?
It features excellent electrical insulation performance, chemical corrosion resistance, high wear resistance, good flame retardancy, and outstanding cost-effectiveness.
What processing equipment and parameters are recommended?
It is recommended to use single-screw extruders with an L/D ratio of 20-25. The recommended machine barrel temperature is 145-170℃, and the molding temperature is 165-175℃.
What is the brittle temperature with impact for RW-7082, RW-9082, and RW-0582?
The brittle temperature with impact for all three models (RW-7082, RW-9082, and RW-0582) is ≤ -30℃.
Can you customize other specifications for these insulation materials?
Yes, we support customizing other specifications to meet your specific application requirements.
How does the material perform under oil resistance testing?
Under ASTM 902 testing standards, the material maintains a tensile strength variation and elongation variation within ±40% when tested for 24 hours (at 70℃ for RW-7082, and 100℃ for RW-9082/RW-0582).