Phenolic cotton cloth board and phenolic paperboard Application

I. Main Differences Phenolic cotton cloth board and phenolic paper board are both phenolic resin-based composites. H...

I. Main Differences

Phenolic cotton cloth board and phenolic paper board are both phenolic resin-based composites. However, due to differences in reinforcing materials (cotton cloth fibers vs. wood pulp paper fibers), their physical properties and applications vary significantly:

Phenolic Cotton Cloth Board
Reinforced with cotton cloth, its long, tightly interwoven fibers provide high mechanical strength, impact resistance, and wear resistance, though it has slightly higher moisture absorption and lower insulation performance.
Core Applications: Suitable for wear-resistant and impact-resistant components in mechanical and transportation industries (e.g., gears, bearing bushings, brake pads) and structural supports in humid environments.

Phenolic Paper Board
Reinforced with wood pulp paper, its short, uniformly distributed fibers create a denser structure, offering excellent insulation, arc resistance, and low cost, but with lower mechanical strength.
Core Applications: Dominates electrical and electronic insulation components (e.g., switchgear partitions, terminal blocks), decorative laminates in light industries, and low-end PCB substrates.

II. Comparison Table of Application Fields

III. Key Selection Criteria

Mechanical Requirements: Choose cotton cloth board for high-load/impact scenarios; paper board for low-cost, lightweight applications.

Insulation & Environment: Paper board for dry insulation; cotton cloth board for humid/high-temperature environments (with moisture-proof treatment).

Processing & Cost: Paper board for complex structures (easy machining); cotton cloth board for long-term durability.

IV. Summary

Phenolic cotton cloth board excels in mechanical performance, while phenolic paper board dominates in insulation and cost-effectiveness. The two materials complement each other, with selection based on specific performance requirements and environmental conditions. Practical choices should balance operational demands (mechanical, thermal, humidity) and economic factors.