Heat Insulation Flame Retardant Polyimide Chopped Fiber
Heat-insulating flame-retardant polyimide chopped fibers are resistant to high and low temperatures and can be used for a long time below 300°C. The thermal decomposition temperature exceeds 567°C, and they are not brittle in liquid nitrogen at -269°C;
Heat-insulating flame-retardant polyimide chopped fibers are carbonized and do not melt at high temperatures, and the smoke density is 1/200 of the Chinese aviation standard;
1. Product Introduction
Heat-insulating flame-retardant polyimide chopped fibers
Heat-insulating flame-retardant polyimide chopped fibers have excellent properties such as insulation, weather resistance, acid and alkali resistance, radiation resistance, and ultraviolet resistance, as well as cashmere-like feel, good spinnability, and skin-friendly properties;
Natural antibacterial, the effect is far better than bamboo fiber;
Heat-insulating flame-retardant polyimide chopped fiber has excellent flame-retardant performance, and its limiting oxygen index is > 38%, which is a non-combustible fiber;
Heat-insulating flame-retardant polyimide chopped fiber is used to insulate heat and keep warm, and its thermal conductivity is only 0.03W/m·℃, which is equivalent to that of air;
Heat-insulating flame-retardant polyimide chopped fibers have natural far-infrared healthcare functions, and the normal emissivity is as high as 0.88.
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-strength and high-modulus: heat-insulating flame-retardant polyimide chopped fibers have extremely high strength and modulus, which can greatly improve the tensile strength and rigidity of products.
High-temperature stability: In high-temperature environment, the mechanical properties and dimensional stability of thermal insulation flame retardant polyimide chopped fibers are not affected.
Flame retardancy: Heat-insulating flame-retardant polyimide chopped fibers have good flame-retardant properties, which can greatly improve the safety of products.
Chemical stability: Thermal insulation flame retardant polyimide chopped fiber has good stability to acid, alkali, oil, and other chemical media, and is not easy to be corroded.
4. Product Details
Aerospace: Heat-insulating flame-retardant polyimide chopped fiber is widely used in aircraft structural parts, engine parts, missiles, and other fields, providing reliable material guarantee for the aerospace industry with its excellent mechanical properties and high-temperature stability.
Automobiles: Heat-insulating flame-retardant polyimide chopped fiber is widely used in lightweight automobiles, such as the manufacture of components such as hoods and doors, which can effectively reduce the weight of the entire vehicle and improve fuel economy.
Electronics: Heat-insulating flame-retardant polyimide chopped fiber can be used to make printed circuit boards (PCBs), optical fibers, and other electronic components. Heat-insulating flame-retardant polyimide chopped fiber high-temperature stability and chemical stability provide a reliable material choice for the electronics industry.
Textile: Heat-insulating flame-retardant polyimide chopped fiber can be used to make high-strength, high-rigidity fiber materials, such as body armor, stab-proof silk, etc., to provide protection for life safety.
