In order to solve the two difficult problems of 3D weaving in the 3D woven thermoplastic composites and of resins impregnating the 3D preform, the micro-braided yarn is developed and studied.

• 为了解决三维机织热塑复合材料中三维机织预型件的织造和热塑基体浸入预型件这两大难题,开发了织造预型件的微编纱。