The decomposition temperature of polyimide resin is generally about 450 °, which is one of the varieties with good high temperature resistance in polymers, and can withstand extremely low temperatures, such as -269 ° in low-temperature liquid nitrogen without embrittlement, mechanical properties: elastic modulus 3-4gp, fiber up to 200gp. It is a self-extinguishing polymer, with low smoke rate, the level can reach UL94V-0 5V, which can resist general organic solvents, the cured material is stable to acid and alkali, the insulation grade can reach Class C, and it still maintains good electrical and mechanical properties after a large dose of radiation, and the friction coefficient can be lower than 002。Dimensionally stable at high temperatures, it can be used to make tableware and medical utensils, and withstand thousands of repeated uses;
Polyimide resins, advanced composite matrices, have many unique properties that make them irreplaceable in aerospace and electrical and electronic applications. Polyimide resins are extremely resistant to high temperatures, and are able to maintain stable performance at extremely high temperatures, which is critical for the aerospace industry. In high-speed moving objects such as airplanes and rockets, materials need to withstand extremely high temperatures and pressures, and polyimide resins are just the right thing to do.
Polyimide resins also have excellent electrical insulating properties. In the field of electrical and electronics, the insulation performance of materials is crucial, which can ensure that electronic equipment can work normally in high-voltage and high-current environments, and will not occur in dangerous situations such as short circuits or electric shocks. Polyimide resins are widely used in the manufacture of electronic components, wires and cables, and integrated circuits.
Polyimide resins also have good mechanical properties and chemical stability. It is not easy to deform, it is not easy to age, and it can maintain its properties and shape for a long time. In harsh environments, such as high temperature, low temperature, strong radiation and other environments, polyimide resin can still show stable performance, which makes it more widely used in aerospace and electronic and electrical fields.