基于单因素法对聚醚醚酮复合涂层的性能研究

The characteristics reserch of polyetheretherketone composite coatings based on single factor method

聚醚醚酮(PEEK)具有耐腐蚀性、自润滑性和耐高温性等特点,广泛应用于复合涂层的制备.现如今,对于聚醚醚酮/聚四氟乙烯/石墨三元复合涂层制备,还没有最佳工艺方案.针对这一问题,本实验采用单因素法,分别在不同压制压力(9t、15t、21t、27t)下、不同烧结温度(360℃、370℃、380℃、390℃)下以及不同结晶时间(10min、30min、50min、70min)下制备聚醚醚酮复合涂层,研究涂层的结晶度、硬度和摩擦因数.研究发现,在压制压力为21t、烧结温度为390℃、结晶时间为70min的情况下,复合涂层的综合机械性能最好.

Polyetheretherketone（PEEK）is widely used in the preparation of composite coatings because of its corrosion resistance,self-lubrication and high temperature resistance.Nowadays,there is no optimum process scheme for the preparation of PEEK/PTFE/graphite composite coatings.In response to this problem,the single-factor method was adopted in this experiment under different pressing pressures（9 t,15 t,21 t,27 t）,different sintering temperatures（360 ℃,370 ℃,380 ℃,390 ℃）and different crystallization times（Polyetheretherketone composite coatings were prepared at 10 min,30 min,50 min,and 70 min.The crystallinity,hardness and friction coefficient of the coatings were studied.It was found that the composite coating had the best mechanical properties under the conditions of compaction pressure of 21 t,sintering temperature of 390 ℃ and crystallization time of 70 min.