Preparation of High-Temperature Resistant Polyimide Fibers by Introducing the p-Phenylenediamine into Kapton-Type Polyimide
Han Dong,
Jie Dong,
Xiuting Li
et al.
Abstract:To improve the heat resistance of polyimide (PI) fibers for application in harsh environments and establish a correlation among the chemical structure, fabrication performance, and material properties, a simple and rigid diamine, p-phenylenediamine (p-PDA) was incorporated into the Kapton-type PI synthesized from pyromellitic dianhydride and 4,4-diaminodiphenylmethane (ODA). The comprehensive properties of these co-PI fibers were systematically investigated to assess the impact of p-PDA addition. Two-dimension… Show more
Utilizing green solvents and raw materials, U-PIs with different morphologies and improved performance were successfully prepared through a solvothermal method.
Utilizing green solvents and raw materials, U-PIs with different morphologies and improved performance were successfully prepared through a solvothermal method.
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