Included in these are reliable methods of quality control, prepreg batch to batch variability, microcracking from thermal cycling, health and safety hazards and high temperature processing. This paper reviews the present status of PMR-15 development and outlines work designed to identify and where possible overcome these limitations.

The initial PMR resin, known as PMR-15, is still commercially available and is used worldwide by the aerospace industry as the state-of-the-art resin for high-temperature polyimide composite applications; including engine bypass ducts, nozzle flaps, bushings, and bearings.

2017年11月3日 · The material, called PMR-15, reacts chemically to form a reinforced plastic that is highly resistant to heat and oxidation. Ferro Corporation and ICI Fiberite cautiously applied the material to a few selected “hot” sections of aircraft structures and engine components.

美国nasa和空军材料实验室又开发了pmr-ii-50、dmbz-15、v-cap、afr-700b等树脂，将复合材料的耐温等级提高到了371℃，并成功应用导弹、航空发动机等的结构和功能性部件上，但其层间剪切强度低，成本也较高，限制了其推广应用。

PMR-15/碳纤维复合材料已经广泛用于飞机发动机外涵道、发动机整流罩、风扇系统以及巡航导弹的进气道和整流罩。 但是, PMR-15树脂及复合材料仍有许多缺点, 例如由于含有脂肪结构的封端剂降冰片烯, 其热氧化稳定性较差; 脂肪链交联密度高, 复合材料较脆易发生龟裂; 二氨基二苯甲烷 (MDA)单体毒性大; 亚胺化过程产生的水等挥发性小分子易造成复合材料的孔隙率高等, 上述缺点造成PMR-15为基础的复合材料无法满足航空航天器进一步发展的要求 [9, 10, 11]。

最具代表性的pmr-15 已商品化，并作为复合材料的基体树脂和粘合剂被成功地 应用在飞机发动机的部件上。但是pmr-15 所使用的单体4,4’-二胺基二苯甲烷 (mda)由于具有潜在的致癌性因而限制了它的应用[2]。本研究合成了一种基本无毒

PMR-15 resin solutions and graphite prepreg. In addition it provided a basic understanding of PMR-15 resin chemistry; this was translated into processing procedures for the production of high quality graphite composites.

又称pmr型 聚酰亚胺 ，一类重要的高性能复合材料基体树脂。单体在材料制备和成型过程中完成 聚合反应 。主要品种有pmr-15、pmr-Ⅱ、larc-160和larc-13等。

1998年4月1日 · PMR-15 is a processable, high-temperature polymer developed at the NASA Lewis Research Center in the 1970's principally for aeropropulsion applications. Use of fiber-reinforced polymer matrix composites in these applications can lead to substantial weight savings, thereby leading to improved fuel economy, increased passenger and payload ...

This paper reviews the present status of PMR-15 development and outlines work designed to identify and where possible overcome these limitations. The frontrunner in the race to develop a high temperature resin for use in advanced composites intended for high temperature applications is the NASA developed polyimide PMR-15.