"Engineer Lin, hello. No, it isn't carbon fiber. It's a polyimide film material sent to us by a new supplier."
Faced with the middle-aged man's question, Xu Yan turned and saw that it was Lin BiCheng, the deputy chief engineer of Aviation Technology International Holding Group who had arrived with Minister Zhao Lin. He hurriedly answered.
Lin BiCheng raised his brows and asked curiously, "Polyimide Material? Did I hear correctly? You just said that this material has an elastic modulus of 10 GPa?"
What he meant was that he had never heard of any Polyimide Material with an elastic modulus reaching 10 GPa.
"Yes, that was the test result from one of my materials R&D managers."
While Xu Yan answered aloud, he was somewhat puzzled inside. Is that so strange?
For a polyimide film material—commonly known as PI Film—the properties Xu Yan mainly used were Dielectric Constant, resistance to low and high temperatures, radiation resistance, and so on. He did not pay much attention to elastic modulus and was naturally not sensitive to it, so he had no idea what was remarkable about an elastic modulus at the 10 GPa level.
What surprised him was that the FY-02 sent over by Fei Yang New Material had tested at a Dielectric Constant of 2.0. This meant that FY-02's insulation performance far surpassed that of any PI Film currently on the market.
Generally speaking, the Dielectric Constant of this kind of material was around 3.0, and that was only after adding other chemical elements, such as fluorine. Under those circumstances, the insulation performance of the PI Film far exceeded that of most materials on the market.
The lower a material's Dielectric Constant, the better its insulation performance.
In a vacuum, the Dielectric Constant was expressed as 1.
The closer the Dielectric Constant