Teachnical specialfections:
Fiber fineness: 3 ~ 25 μ m
Purity:more than 99.9 percent content of SiO2
Performance: Melting point: 1710 ℃
Crystallization temperature: 700℃ above
Thermotolerant performance : 1200 ℃half hour starts not to change form crisply.
Thermal coefficient: (mat-like) in the following 200 ℃ <0.03 kcal / m at the degree
In 1000 ℃ at 0.2 kcal / m at the degree
Tensile capacity: 15.4 N
Tensile strength: normal temperature > 150Kg/mm2 500 ℃ at the strength reduced by 20%
Elastic modulus: 96 × 104Kg/mm2
Dielectric constant: ε = 4.5
Volume Resistance: (for cable)
At room temperature> 1 × 1017 Ω cm
500 ℃ at > 1 × 1010 Ω cm
1000 ℃ at > 1 × 108 Ω cm
Water tolerance: in the water boiled for three hours without loss
Acid resistance: 1 NH2SO4 boiled in three hours without loss
Alkaline resistance: 0.5 NNaOH boiled three hours loss of 0.62 percent
Applying:
1、 For high-temperature insulation: such as rockets, missiles for insulation, earthquake or other high-temperature insulating materials engineering.
2、 Used for reinforced plastic: high-temperature production of synthetic resin and high-strength glass fiber reinforced plastic materials. Widely used in aviation, missiles and rockets, and so on.
3、 Special cable: use for the foreskin of the cable, used in high temperature on the special-purpose cable.
4、 Acid-base for high-temperature filters .
5、 For vacuum tube filled with material: water Rafah as a quartz tube filled with silk material, in order to improve the performance of the tube,and extend the life of vacuum tube.
