High Temperature Resistance Polyimide Short Fiber
High-temperature-resistant polyimide short fibers are a class of high-performance aromatic heterocyclic polymers with outstanding comprehensive properties.
High temperature resistant polyimide short fiber has the characteristics of high temperature resistance, flame retardancy, insulation, low dielectric and radiation resistance of polyimide material and the strength and modulus of high performance fiber, and is known as the most advanced fiber in the 21st century. A promising high-performance fiber variety.
High-temperature-resistant polyimide short fibers have broad application prospects in important fields such as aerospace, transportation, electronic appliances, and nuclear industries, and are one of the strategic new materials for key development.
1. Product Introduction
High temperature resistant polyimide short fibers have good spinnability and can be made into textiles for various special occasions.
High temperature resistant polyimide short fiber has high and low-temperature resistance, flame retardancy, non-melting drop, self-extinguishing when away from fire, and excellent temperature insulation, high temperature resistant polyimide short fiber heat insulation protective clothing is comfortable to wear, has Good skin adaptability, permanent flame retardancy, stable size, good safety, and long service life.
Compared with other fibers, due to the low thermal conductivity of the material itself, high-temperature-resistant polyimide short fibers are also excellent thermal insulation materials.
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
Excellent mechanical properties of high-strength and high-modulus polyimide fibers
High and low-temperature resistance
Dimensionally stable
Low dielectric
Low water absorption
4. Product Details
In terms of labor protective clothing, my country's metallurgical department needs 50,000 sets of heat-insulating, breathable, and soft flame-retardant work clothes every year, and 300,000 sets of protective clothing are needed annually in departments such as hydropower, nuclear industry, mine, petrochemical, and oil fields, and high-temperature-resistant clothing is required annually. About 300 tons of high temperature resistance polyimide short fiber flame-retardant special protective clothing fiber.
The non-woven fabric woven from high-temperature-resistant polyimide short fiber is the most ideal fiber material for making fire-resistant and flame-retardant clothing such as protective clothing for armored troops, flame-resistant clothing for racing cars, and flight suits. The high temperature resistant polyimide short fiber can also be used to make comfortable and warm functional clothing, such as military clothing, medical health clothing, casual clothing to eliminate bad body odor, special clothing for anti-biological and chemical weapons, medical and sanitary protective clothing, and efficient smoke protection face mask, etc.
