Blog - JingHong

Phenolic Series

Bakelite Sheet Heat Resistance Explained

Caroline Jia

Aug 20, 2025

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Phenolic Series

How Phenolic Cotton Sheet Is Manufactured?

Phenolic cotton sheet manufacturing is a sophisticated process that combines cotton fabric with phenolic resin to create a durable, versatile material. The process begins with selecting high-quality cotton fabric, which is then impregnated with liquid phenolic resin. This resin-soaked fabric undergoes a carefully controlled drying process to achieve the optimal resin content. Next, multiple layers of the treated fabric are stacked and subjected to heat and pressure in large hydraulic presses. This curing process causes the resin to polymerize, binding the cotton layers together and forming a rigid, laminated sheet. The final product is then cooled, trimmed, and quality checked to ensure it meets the required specifications for electrical insulation, mechanical strength, and dimensional stability.

Caroline Jia

Aug 20, 2025

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Phenolic Series

The History of Bakelite Sheet in Industrial Manufacturing

Caroline Jia

Aug 20, 2025

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Phenolic Series

Key Properties of Bakelite Sheet for Electrical Applications

Caroline Jia

Aug 20, 2025

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Phenolic Series

What Is Bakelite Sheet and Why Is It Still Used Today?

Caroline Jia

Aug 20, 2025

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Phenolic Series

Phenolic Cotton Cloth Tube VS Phenolic Paper Tube

Caroline Jia

Aug 19, 2025

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Phenolic Series

Phenolic Cotton Sheet Temperature and Wear Resistance

Phenolic cotton sheet excels in handling elevated temperatures and abrasive conditions, thanks to its composite makeup of cotton fabric infused with phenolic resin. This material typically endures continuous exposure up to 120°C, with brief excursions to 150°C possible without immediate failure. Exceeding these limits may cause resin degradation, leading to brittleness or loss of adhesion between layers. In terms of wear, its dense structure resists friction superbly, making it suitable for gears, bushings, and insulators under mechanical duress. The cotton fibers provide tenacity, while the resin offers a slick, durable surface that minimizes erosion over time. Industries value this for its balance of thermal fortitude and abrasion defiance, ensuring components last longer in harsh setups. Proper selection and maintenance amplify these traits, preventing premature wear or thermal breakdown.

Caroline Jia

Aug 19, 2025

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Phenolic Series

Key Electrical Properties of NEMA CE Sheet

Caroline Jia

Aug 19, 2025

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Phenolic Series

The Role of Phenolic Cotton Sheet in Mechanical Engineering

Caroline Jia

Aug 19, 2025

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