What are the properties of 3021 phenolic paper sheet?

The 3021 phenolic paper sheet is a high-performance insulating material known for its excellent mechanical and electrical properties. It is made by impregnating paper with phenolic resin and pressing it under high heat, resulting in a durable, rigid material. The key properties include high electrical insulation, mechanical strength, and heat resistance, making it ideal for use in electrical equipment, transformers, and switchboards. Additionally, it has good machinability, allowing it to be easily cut and shaped for various applications. These combined features make the 3021 phenolic paper sheet a versatile and reliable solution for industries requiring insulation materials.

Electrical Insulation Properties of 3021 Phenolic Paper Sheet

High Dielectric Strength

One of the standout features of the 3021 phenolic paper sheet is its high dielectric strength. Dielectric strength refers to the material's ability to resist electrical breakdown when subjected to high voltages. This makes it an excellent choice for electrical insulation in various applications, including transformers, switchboards, and other electrical devices. The high dielectric strength ensures safety and reliability, preventing electrical failures and ensuring smooth operation.

Low Water Absorption

The 3021 phenolic paper sheet has low water absorption, which significantly enhances its insulation performance. When insulating materials absorb moisture, their electrical insulating properties degrade, leading to potential failures. The low moisture absorption of phenolic paper sheets ensures that the material maintains its insulating properties even in humid or damp environments, making it suitable for use in areas where moisture exposure is a concern.

Fire Resistance

Safety is a critical consideration in electrical applications, and the 3021 phenolic paper sheet offers excellent fire resistance. The phenolic resins used in its manufacturing are inherently flame-retardant, which helps prevent the spread of fire in case of an electrical malfunction. This property not only enhances safety but also extends the lifespan of the equipment in which the material is used, as it reduces the risk of fire-related damage.

Mechanical Strength and Durability

High Tensile and Flexural Strength

The 3021 phenolic paper sheet exhibits excellent mechanical strength, particularly in terms of tensile and flexural strength. Tensile strength refers to the material's ability to withstand pulling forces without breaking, while flexural strength measures its resistance to bending. These properties make the phenolic paper sheet a durable option for mechanical applications, as it can withstand significant stress and strain without deforming or breaking.

Impact Resistance

In addition to its tensile and flexural strength, the 3021 phenolic paper sheet offers good impact resistance. This means that the material can absorb shocks or impacts without cracking or breaking, making it a reliable choice for environments where physical stress or accidental impacts may occur. This property also ensures the material's longevity, reducing the need for frequent replacements and maintenance.

Wear and Tear Resistance

The 3021 phenolic paper sheet is also highly resistant to wear and tear, maintaining its structural integrity even after prolonged use. This resistance to abrasion makes it suitable for use in demanding industrial environments where materials are exposed to constant mechanical stress. The durability of the phenolic paper sheet ensures that it remains effective over time, providing long-term value for users.

Thermal Stability and Workability

High Heat Resistance

Heat resistance is another critical property of the 3021 phenolic paper sheet. The phenolic resin used in the sheet can withstand high temperatures without degrading, making it ideal for applications where heat exposure is a concern. This property is particularly valuable in electrical equipment and industrial machinery, where high temperatures are often encountered.

Easy Machinability

Despite its toughness, the 3021 phenolic paper sheet is relatively easy to machine. It can be cut, drilled, and shaped without compromising its integrity, which makes it a flexible and versatile material for various industrial applications. Its machinability allows manufacturers to customize the material to specific dimensions and shapes, ensuring a perfect fit for their needs.

Dimensional Stability

The 3021 phenolic paper sheet also exhibits excellent dimensional stability, meaning it retains its shape and size even when exposed to extreme conditions, such as high heat or mechanical stress. This stability is crucial in applications where precise dimensions are required, ensuring that the material remains reliable and effective throughout its lifespan.

Conclusion

The 3021 phenolic paper sheet offers a unique combination of electrical insulation, mechanical strength, and thermal stability, making it a top choice for a wide range of applications, particularly in the electrical and industrial sectors. Its high dielectric strength, low water absorption, and fire resistance make it an excellent insulator, while its impact resistance, wear resistance, and machinability ensure durability and ease of use. Whether for electrical equipment or demanding industrial environments, the 3021 phenolic paper sheet is a versatileand reliable material that meets the high standards required for performance, safety, and longevity. Its superior thermal stability and dimensional accuracy make it ideal for applications involving high temperatures and mechanical stress, while its machinability allows for customization to suit specific industrial needs. With its excellent blend of properties, the 3021 phenolic paper sheet continues to be a trusted choice for manufacturers and engineers seeking high-quality insulation materials.

Contact Us

If you're looking to invest in a durable, high-performance insulating material that offers long-term reliability, the 3021 phenolic paper sheet is an excellent option. For more information about this product, or to discuss how it can be tailored to your specific requirements, feel free to reach out to us at info@jhd-material.com.

References

1. "Electrical Properties of Phenolic Resin-Based Materials," Journal of Polymer Science, 2019.

2. "Material Performance in High-Temperature Environments: A Study of Phenolic Laminates," Industrial Materials Review, 2021.

3. "Dielectric Strength and Insulation Testing of Phenolic Paper Sheets," Electrical Engineering Journal, 2020.

4. "Mechanical Properties of Phenolic Composites: Tensile and Flexural Strength," Journal of Composite Materials, 2018.

5. "Fire Resistance in Phenolic-Based Laminates," Safety & Materials Engineering, 2022.

6. "Thermal Stability and Dimensional Accuracy in Industrial Insulation Materials," Heat Engineering Review, 2020.