Phenolic Cotton Sheet

Phenolic cotton sheet is a versatile and essential material for various industrial and commercial applications. This paper-thin laminate consists of layers of cotton fabric impregnated with phenolic resin, which is then cured to form a strong and durable composite material that can withstand high temperatures, pressures, and harsh chemical environments. Phenolic cotton sheet is widely used in electrical, mechanical, and thermal insulation applications, as well as in the manufacture of gaskets, seals, bearings, and other components that require high strength and dimensional stability.

One of the main advantages of phenolic cotton sheet is its excellent electrical insulation properties. It has high dielectric strength, low dielectric constant, and low loss factor, which make it ideal for use in electrical equipment and systems. It can also withstand high voltage and frequency, making it suitable for use in transformers, motors, generators, and other high-power devices. Phenolic cotton sheet is also resistant to moisture, oil, and other contaminants, which helps to ensure long-term reliability and performance.

Another key feature of phenolic cotton sheet is its exceptional mechanical strength and toughness. It has high tensile and compressive strength, and can withstand bending, twisting, and flexing without cracking or delaminating. It also has good impact resistance and fatigue resistance, which makes it ideal for use in heavy-duty applications such as gears, pulleys, and other mechanical components. Phenolic cotton sheet is also dimensionally stable, meaning it maintains its shape and size even under extreme temperature and pressure conditions.

Phenolic cotton sheet is also an excellent thermal insulator, with high thermal conductivity and low thermal expansion. It can withstand temperatures up to 150°C (302°F) without significant degradation, making it ideal for use in high-temperature applications such as oven insulation and furnace linings. It is also resistant to flame and smoke, and has low smoke and toxicity emissions, which makes it suitable for use in areas where fire safety is a concern.

When it comes to chemical resistance, phenolic cotton sheet is highly resistant to most acids, alkalis, and solvents. It is also resistant to UV radiation, ozone, and weathering, which makes it suitable for use in outdoor applications. Phenolic cotton sheet is also easy to machine, shape, and fabricate, which allows for a wide range of customized designs and configurations.

Overall, phenolic cotton sheet is a highly versatile and durable material that offers exceptional electrical, mechanical, thermal, and chemical properties. It is widely used in a variety of industries, including automotive, aerospace, electrical, and mechanical engineering, among others. If you are looking for a high-quality and reliable material for your next project or application, consider phenolic cotton sheet as your go-to choice.

We not only produce insulating boards, but also can cut them into various sizes and process them into insulating parts of various shapes for customers. Our company has different types of CNC machines and grinding machines, which can make various high-precision insulating parts.

Product description

Name: 3025 cotton cloth sheet

Type: 7 yarn, 10 yarn, 21 yarn

Original: China

Application: For mechanical and electrical application, suitable for being used as mechanical structural parts and insulation structural parts of electrical equipments.

Characteristics:

With good mechanical strength and electrical properties, good moisture resistance, similar to NEMA grade CE.

Standard thickness: 3~50mm

Pre-Sales Service

* Inquiry and consulting support.

* Sample testing support.

* View our Factory.

After-Sales Service

* Give directions about how to use this material, also offer testing report on material' technical data.

* Any feedback from buyers will be much appreciated and resolve the problem resolutely.

3025 PHENOLIC COTTON CLOTH LAMINATED SHEET
Serial number	Properties		Unit	Grade
	1000mm*2000mm			3025
1	Flexural strength perpendicular to laminations	≥	MPa	90
2	Tensile strenght	≥	MPa	50
3	Parallel shear strength	≥	MPa	35
4	Bonding strength	≥	N	5500
5	Dielectric strength Perpendicular to Laminations (in 90±2°C transformer oil, 1.5mm-2mm in thickness)	≤	MV/m	2
6	Breakdown voltage parallel to Laminations (in 90±2°C transformer oil,1.5-2mm)	≤	KV	1
7	Insulation Resistance after impregnated in water	≥	Ω	1.0×106
8	Density		g/cm3	(1.45-1.5)
9	Color		-	Brown
10	Impact strength(Charpy)	≥	KJ/m2	7.9
11	Water absorbability(D-24/23, 1.6mm in thickness)		Mg	296

 

Main Features

1) .High electrical and mechanical performance.

2) Easy for fabricaion, good dimentional stability, physical strength, resiliency.

3) Better machinability than other product.

 

Minimum order quantity requirement

500kgs

 

Why choose us?

• We offer a wide range of sizes, colors, and thicknesses for our Board products.
• We are committed to integrating and applying excellent technical resources and market resources, and aspire to become an excellent enterprise in China!
• Our factory is committed to providing a safe and healthy working environment for our employees.
• Our company supports customers to complete a complete set of integration work based on Phenolic Cotton Sheet.
• We offer fast and reliable delivery options to our customers.
• We maintain long-term business and technical exchanges with our partners, and continue to enrich the company's strength.
• We are recognized for our high level of professionalism and expertise in the industry.
• We will focus on the five major development concepts of innovation, coordination, green, openness and sharing, and adhere to the direction of market-oriented reform.
• Our factory is fully equipped with advanced technology and equipment to produce high-quality Board products.
• We regard human resources as the core productivity of the enterprise, and take performance as the core guide to examine talents comprehensively.