Introduction

Shenjiu quartz fiber yarn is continuous filament made from high-purity SiO₂ and natural quartz crystal. The SiO₂ purity is more than 99.95%. It is flexible inorganic fiber material with low dielectric constant and high temperature resistance properties. Quartz fiber yarn has unique advantages in the field of ultra-high temperature and aerospace industries, which is a good substitute for E-glass, high silica, basalt, aramid and carbon fibers on some occasions. With samll linear expansion coefficient, its tensile modulus increases when temperature increasing, which is extremly rare feature of quartz fiber.

Performance

1. Excellent dielectric properties, the dielectric constant 3.74 and the loss tangent factor 0.0002. Excellent wave-transparent material

2. Ultra-high temperature resistance, long lifetime at temperature of 1050℃-1200℃, softening temperature 1700 ℃, thermal shock resistance, longer service life

3. Low thermal conductivity, small thermal expansion coefficient only 0.54X10^-6/K, which is a tenth of ordinary glass fiber, both heat-resistant and heat-insulated

4. High strength, no micro-cracks on the surface, the tensile strength is up to 6000Mpa, which is 5 times that of high silica fiber, 76.47% higher than that of E-glass fiber

5. Good electrical insulation performance, resistivity 1X1018Ω·cm~1X106Ω·cm at temperature 20 ℃ ~ 1000 ℃. An ideal electrical insulating material

6. Stable chemical properties, acidic, alkaline, high temperature, cold, stretching durability resistance. Corrosion resistance

Application

1. Wave-transparent material (missiles, radomes of aircraft & satellite, electronic countermeasure devices)

2. Stealth materials (aircraft, missiles, drones, fighters, bombers, ships, submarines, etc.)

3. High-performance printed circuit board (high-frequency PCB, high-speed PCB)

4. Ablation-resistant material (spacecraft thermal protection material, missile exhaust pipes)

5. High temperature resistance and heat insulation material (aircraft engine and fuselage fire proof, semiconductors and optical fiber manufacturing)

6. High temperature resistant catalyst carrier material (vehicle exhaust gas treatment, industrial air purifier)

7. Glass manufacturing (insulation materials of automobile glass tempering furnaces)

8. High temperature and pseudoskeleton reinforceing material

9. Tooth post and false bone reinforcement

10. An ideal substitute for high silica, ceramic and E-glass fiber

Specifications