The Effect of MoS2 on Friction & Wear Behavior of PTFE Composites

'Text sample:
Chapter 3.1.4 Composites:
Composite materials (composites) are engineered materials made from two or more constituent materials with significantly different physical or chemical properties and which remain separate and distinct on a macroscopic level within the finished structure. Composites are widely used because overall properties of the composites are superior to those of the individual components.
There are two constituent materials of composite; matrix and reinforcement. The matrix material surrounds and supports the reinforcement materials by maintaining their relative positions. The reinforcements impart their special mechanical and physical properties to enhance the matrix properties. A synergism produces material properties unavailable from the individual constituent materials, while the wide variety of matrix and strengthening materials allows the designer of the product or structure to choose an optimum combination.
A variety of molding methods can be used according to the end-item design requirements and natures of the chosen matrix and reinforcement materials. Most commercially produced composites use a polymer matrix material often called as a resin solution. There are many different polymers like polyester, vinyl ester, epoxy, phenolic, polyimide, polyamide, polypropylene, PEEK, etc. are available. The reinforcement materials are often in the form of fibers but also commonly ground minerals. The strength of the product is greatly dependent on the percentage of fiber content.
A number of material-processing strategies have been used to improve the wear performance of polymers. This has prompted many researchers to cast the polymers with fibers/fillers. Considerable efforts are being made to extend the range of applications. Various researchers have studied the tribological behavior of FRPCs. Studies have been conducted with various shapes, sizes, types and compositions of fibers in a number of matrices. In general these materials

Ashutosh Mokate completed his PG from PDVVP College of Engineering, Ahmednagar.
For the last two years, he has worked with the G.H. Raisoni College of Engineering. In total, he has four years of teaching experience. For this work he would especially like to thank Dr. R.R. Navthar for his valuable guidance.