The composition, the molecular and the characteristics of polyimide (PI) fiber as a precursor of carbon fibers were introduced.
介绍了作为碳纤维前驱体的聚酰亚胺（PI）纤维的组成、分子结构和特性；
A coatings containing polytetrafluoroethylene (PTFE) was prepared with polyphenylene sulfide (PPS) and polyimide (PI) as adhesive which were mixed with PTFE in a suitable solvent.
以聚笨硫醚(PPS)和聚酰亚胺(PI)为复合粘结剂与聚四氟乙烯(PTFE)混合于合适的溶剂中，制成含ptfe的涂料。
Poly (ether imide) (PEI) is a modification kind of high performance polymer, which adds a ether bond to macromolecular chain of polyimide (PI).
聚醚酰亚胺(PEI)是在聚酰亚胺(PI)链上引入醚键形成的一类高聚物。
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