polyimidefiber相关论文
Preparation of High-performance Polyimide Fibers with Wholly Rigid Structures Containing Benzobisoxa
In this work,a fully rigid coplanar symmetric heterocyclic unit was introduced into the rigid polyimide macromolecular b......
INTRODUCTION Polyimide(PI) was one of performance polymers since the mid-twentieth century.This type of polymer in which......
STATEMENT OF PURPOSE The purpose of this research is to improve mechanical properties of polyimide(PI) fibers.Herein,the......
该文从挂篮荷载计算、施工流程、支座及临时固结施工、挂篮安装及试验、合拢段施工、模板制作安装、钢筋安装、混凝土的浇筑及养生......
