Porous PI Material Preparation And After Tribological Performance Research

Porous polymer lubricating material because of its porous structure and superior internal self-lubricating performance, its suction under the normal and stored lubricating oil, and in the work continuously steadily to release, so as to have the effect of no oil change for a long time. Compared with common polymer materials, PI porous materials possess unique performance advantages, particularly suited to the production of oil bearing materials with special lubrication requirements. In this paper, we study the process parameters(molding pressure, molding temperature and holding time) and pore-forming agent content on the PI, the influence of the preparation and properties of porous oil material, the preliminary discussion on the tribological mechanism, provide experimental basis for tribological applications of porous oil material.Paper made sample vacuum heat moulding technology, with the process parameters and pore-forming agent quality score for change factors, the orthogonal experiment design, is educed the best parameter combination of mechanical properties. In the scanning electron microscopy(sem) and optical microscope in style, on the basis of IPP with image processing software for characterizing the material aperture. PI porous materials for oil absorption characteristic test, evaluation of its mechanical properties, friction and wear performance experiments of oil material. Using the tribology tester CETR evaluation PI porous, and tribology capability of oil material research different pore-forming agent content, load and sliding speed on PI porous oil material the influence of friction coefficient and wear rate, porous oil material wear morphology observation of PI, analysis the mechanism of friction and wear.Research results show that by controlling process parameters(molding pressure, molding temperature and holding time) and pore-forming agent content, can be with a particular aperture size of porous materials, PI oil material tribology performance under different conditions of experiment study and mechanism analysis, for the PI, the further application of porous oil-bearing materials provides some experimental data andtheoretical reference.