High Temperature Resistance Polyimide Staple Fiber
High temperature resistant polyimide staple fiber is a kind of aromatic heterocyclic organic fiber, and it is one of the varieties with the best comprehensive performance among high-performance organic fibers.
High temperature resistant polyimide staple fiber has excellent properties such as radiation resistance, high temperature resistance and high strength.
High temperature resistant polyimide staple fiber is playing an increasingly important role in aerospace, national defense and military industry, new building materials, environmental protection and fire prevention.
1. Product Introduction
High temperature resistant polyimide staple fiber is a kind of aromatic heterocyclic organic fiber, and it is one of the varieties with the best comprehensive performance among high-performance organic fibers.
High temperature resistant polyimide staple fiber has excellent properties such as radiation resistance, high temperature resistance and high strength.
High temperature resistant polyimide staple fiber is playing an increasingly important role in aerospace, national defense and military industry, new building materials, environmental protection, and fire prevention.
2. Product Parameter
| No. | Denier | Length(mm) | Breaking Strength (cN/dtex) | Absorption (%) | Thermal Decomposition Temperature (5%,℃） | Tg (℃） | LOI （%） |
| BMT-0 | 1.0-6.0 | 1-76 | ≥3.6 | ≤2.0 | ≥550 | ≥380 | ≥34 |
| BMT-NS | 1.7 | 1-76 | ≥14.0 | ≤2.0 | ≥590 | ≥320 | ≥44 |
| BMT-0A | 0.9 | 1-6 | / | ≤2.0 | ≥550 | ≥380 | ≥34 |
| ITEM | INDEX |
| Water absorption | <1% |
| Hydrolysis resistance | Excellent |
| Acid resistance | Excellent |
| Alkali resistance | Poor |
| Solvent resistance | Excellent |
| Ultraviolet resistance | Excellent |
| Dielectric properties | Excellent |
| Thermal conductivity | ＜0.03W/（M.K） |
| Coefficient of thermal expansion | <-0.3%(250℃*15min) |
| Creep resistance | Excellent |
| Wear resistance | Excellent |
| Glass transition temperature | 320℃~410℃ |
| Long-term use temperature | <350℃ |
| Density | 1.44g/cm3 |
| Limiting oxygen index | >38 |
3. Product Feature
High temperature resistant polyimide staple fiber has high strength and high modulus, and its breaking strength can reach 4.6GPa;
The initial decomposition temperature of high temperature resistant polyimide staple fibers is generally around 500°C;
High temperature resistant polyimide staple fiber has good radiation resistance;
Excellent dimensional stability;
No biological toxicity can withstand thousands of disinfections;
It has good dielectric properties, and the dielectric constant is about 3.4;
Low smoke rate.
4. Product Details
High temperature resistant polyimide staple fiber is currently mainly used in the following fields:
One is the field of high-temperature filtration. High-temperature-resistant polyimide staple fibers can be used as filter materials for exhaust gas treatment bag filters in cement production and other fields;
The second is the field of special protection. High-temperature resistant polyimide staple fibers can be used to manufacture protective products under severe conditions such as high temperature and strong radiation, such as fire retardant clothing, heat insulation felt, flight clothing, high voltage shielding clothing, high temperature resistant special braided cables wait;
The third is in the field of textile and clothing. High-temperature-resistant polyimide staple fibers can be made into outdoor cold-proof clothing, warm-keeping flakes, fleece clothing, etc.
The application field of high temperature-resistant polyimide staple fiber is still gradually expanding, in the nuclear energy industry, space environment, aerospace, national defense and military industry, new construction, high-speed transportation, marine development, environmental protection, sports equipment, new energy and other fields The market demand is also growing, and its market potential is huge.
