Quartz Yarn

Introducing of quartz yarn

Material:  

  Continuous fiber yarn is made from silicon dioxide (SiO2) (purity usually ≥99.9%) as raw material through high-temperature melting, drawing and other processes.  

  - Monofilament yarn (single fibers twisted together)  

  - Multifilament yarn (multiple fibers twisted together)  

  - Twisted/untwisted yarn (adjusted according to process requirements)  

2. Advantages

1. High temperature resistance:  

   - The long-term use temperature can reach 1200℃~1600℃ (melting point is about 1700℃), and it will not burn or deform at high temperatures.  

2. Low thermal conductivity:  

   - Low thermal conductivity (about 0.04 W/(m·K)), suitable for high temperature insulation scenarios.  

3. Chemical stability:  

   - Resistant to corrosion by acids, alkalis and organic solvents (except hydrofluoric acid and hot phosphoric acid).  

4. Electrical insulation:  

   - High resistivity (>10¹⁵ Ω·cm), suitable for high frequency and high voltage insulation materials.  

5. Lightweight and toughness:  

   - Low density (approximately 2.2 g/cm³), can be woven into complex structures.  

3. Main application areas

1. High temperature protection and insulation

Industrial furnace lining: woven into insulation blankets and casings, used for linings of metallurgical and ceramic kilns.  

Fireproof material: used to make fire-fighting clothing and fire-proof curtains, with flame retardant properties superior to traditional glass fiber.  

2. Aerospace and military industry

Composite reinforcement: compounded with resin/ceramic matrix to manufacture high temperature resistant structural parts (such as missile fairings).  

Thermal protection system: used for spacecraft heat shield and engine nozzle insulation layer.  

3. Electronics and Communications

High-frequency substrate: As the substrate of high-frequency circuit, it reduces signal loss.  

Optical fiber reinforcement: used to protect the outer layer of optical fiber and improve tensile strength.  

4. Specialty Textiles

High temperature resistant fabrics: woven into fire blankets, high temperature filter bags (such as filter bags for waste incineration plants).  

Protective clothing: Protective equipment for workers engaged in high-temperature operations such as welding and casting.  

4. Frequently Asked Questions 

Q: What is the difference between quartz yarn and glass fiber yarn?  

  A: Quartz yarn has higher temperature resistance (glass fiber usually has a temperature resistance of ≤600℃), higher purity, and better dielectric properties.  

Q: Does quartz yarn break easily? 

  A: Quartz fiber is very brittle and needs to be avoided from excessive bending. Its flexibility can be improved by applying a wet coating (such as a silane coupling agent).  

Q: How to clean quartz yarn products? 

  A: Use a soft brush to lightly brush away the dust on the surface, or use low-pressure airflow to clean, and avoid fiber damage caused by water washing.  

5. Market and selection suggestions

Brand reference: Saint-Gobain from the United States, Nitto Boseki from Japan, CYS from China.  

parameter:  

  - Fiber diameter (5~15 μm)  

  - Yarn count (e.g. 100 Tex, 200 Tex)  

  - Whether it contains wetting agent (affects subsequent composite processing).  

Quartz yarn is a key material in high-end industry and technology due to its unique high temperature resistance and insulation properties. When selecting, it is necessary to combine the specific working conditions and the supplier's technical parameters!

For more: 

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