Details
PHENOLIC COTTON CLOTH LAMINATEDTUBES
Phenolic Cotton Cloth Laminated Tubes, also known as Textolite Tubes, are hollow, cylindrical thermoset composites that are created by layering cotton fabric that has been saturated with phenolic resin. The layers are bonded under high pressure and heat, resulting in a strong, dimensionally stable structure. The phenolic resin provides moderate electrical insulation and chemical stability, while the woven cotton layers provide mechanical strength and durability. Phenolic Cotton Cloth Laminated Tubes are designed for applications that call for lightweight durability, electrical insulation, and resistance to mechanical stress.
What are the key features of Phenolic Cotton Cloth Laminated Tubes?
-Chemical Resilience: Resists oils, alkalis, and mild acids;
-Low Moisture Absorption: <1% water uptake (24-hour immersion);
-Machinable: Can be precisely cut, drilled, or threaded without delamination;
-Electrical Non-Conductivity: Perfect for insulating high-voltage components;
- Anti-Friction Properties: Smooth surfaces reduce wear in dynamic applications.
-Thermal Endurance: Can withstand temperatures up to 130°C continuously;
Technical Specifications:
1、Density：1.3 – 1.4 g/cm³（varies according to fabric density and resin content）
2、Flexural Strength：120 – 180 MPa（impacted by wall thickness and tube diameter）.
3、Compressive Strength：200 – 300 MPa（allows load-bearing applications）.
4、Tear Strength：80 – 120 MPa（Layers of cotton improve durability）
5、Thermal Conductivity：~0.3 W/m·K（offers a moderate level of insulation）
6、Temperature Resistance：Continuous use ~120–140°C（Temperatures can be raised for brief periods of time）
7、Dielectric Strength：~8 – 12 kV/mm （Ideal for insulation at moderate voltages）
8、Water Absorption (24 hrs)：~1.0–2.0%（A cotton component has a restricted capacity to absorb moisture.）
9、Wall Thickness Range：2mm to 50mm（Adaptable）
What are the advantages and benefits of Phenolic Cotton Cloth Laminated Tubes?
1、Dimensional Stability
minimizes distortion or warping by maintaining shape in the face of temperature and humidity changes.
2、Strong Mechanical Characteristics
Perfect for impact-prone or load-bearing applications.
3、 Diminished Weight
Compared to solid laminates, hollow design reduces total mass, making handling and installation easier. Compared to metal tubes (such as steel or aluminum), they are up to 60% lighter.
4、 Damping of Noise and Vibration
Layers of cotton fabric can lessen operating noise in rotating or sliding elements and assist absorb stress.
5、 Economical
more affordable while maintaining dependable performance compared to many sophisticated composites.
What applications are Phenolic Cotton Cloth Laminated Tubes used for?
1、Rollers, bushings, spacers, and guide tubes are examples of mechanical engineering.
2、Electrical systems: switchgear, transformer cores, and busbar insulation sleeves.
3、Renewable Energy: Wind turbine assembly insulation.
4、Automotive: Bearing housings, hydraulic system components.
Lightweight structural components in non-critical load zones are used in aviation.
5、Shuttles, bobbins, and conveyor system guides are examples of textile machinery.
How to store and handle Phenolic Cotton Cloth Laminated Tubes?
1、 Keep out of direct sunlight
Long-term UV exposure might result in surface deterioration or color changes.
2、 A dry, cool environment
Maintaining dimensional consistency and preventing moisture absorption can be achieved by storing in an area with a moderate temperature and humidity (humidity <65%) between 15 and 25°C.
3、 Frequent Examination
Check for cracks, delamination, or dimensional changes on a regular basis for important applications, particularly if they are utilized in high-stress or harsh environments.
4、 Consistent Positioning
Maintain tubes with sufficient support in a horizontal position. Warping may result by overstacking or putting too much weight on them.
Frequently Asked Questions
Question 1: How long does it take to get large orders?
A: For regular sizes, it usually takes two to three weeks; unique designs could take longer.
Question 2: Are phenolic cotton tubes available in specific lengths?
A: It is possible to cut phenolic cotton cloth tubes to precise lengths, such as 500 mm to 2.5 m.
Question 3: What inner/outer diameter tolerances are possible?
A: The standard tolerance is ±0.1mm; special machining is needed for tighter tolerances (±0.05mm).
Question 4: Is it possible to thread or groove phenolic cotton fabric tubes?
A: Yes, CNC machining can be used to add threads and grooves after curing.
Question 5： Can high rotating speeds be handled by Textolite tubes?
A： Yes, they are appropriate for spinning elements like rollers due to their balanced structure and reduced friction.
Question 6: What distinguishes laminated tubes made of phenolic cotton cloth from rods?
A: In contrast to rods, which are solid, tubes feature a hollow core that reduces weight and enables them to serve as bushings or sleeves. Because of this structural distinction, tubes are suitable for applications that call for an interior route or less bulk.
