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China PVC Insulating Compound Granules Supplier - Cost-Effective Insulation Material from Factory for Cables
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
Has good electrical insulation performance, which can effectively block current conduction, avoiding dangers such as electric shock and short circuit.
It has good chemical resistance to most acids, bases, salts, and solvents, can maintain its insulation performance, and is not easily corroded.
It has high wear resistance and can resist external physical forces and wear, thereby extending the service life of wires and cables.
Usually has good flame retardancy, meaning it is not easy to burn in a fire, producing less smoke and toxic gases during combustion.
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
Detailed Image
Frequently Asked Questions
What are the main benefits of using PVC insulation material for cables?
PVC insulation material offers excellent electrical insulation, chemical corrosion resistance, high wear resistance, reliable flame retardancy, and superior cost-effectiveness compared to alternative materials.
What type of extruder is recommended for processing this material?
We recommend using single-screw extruders with an L/D (Length/Diameter) ratio of 20-25 for optimal processing of our PVC cable insulation compounds.
What are the recommended temperature settings for extrusion?
For models RW-7082, RW-9082, and RW-0582, the recommended machine barrel temperature is 145-170℃, and the molding temperature should be maintained between 165-175℃.
What is the brittle temperature limit for these PVC models?
All standard models (RW-7082, RW-9082, and RW-0582) exhibit a brittle temperature with impact of ≤ -30℃, ensuring reliability in cold environments.
Do you support customization for other technical specifications?
Yes, we support customizing other specifications to meet your specific project requirements and technical standards.