Effect of Mechanically Activated Layered Silicate on the Properties and Structure of Polytetrafluoroethylene
The results of studies of mechanical activation of mineral layered silicate - vermiculite as a method of improving compatibility with polytetrafluoroethylene (PTFE) are presented. The influence of mechanoactivation on the crystalline structure of silicate as well as on deformation-strength, tribotechnical characteristics and coefficient of thermal expansion of composites is considered. The effectiveness of the use of mechanical activation to improve the combination of vermiculite with a polymer matrix is confirmed by the results of the tests. It is shown that the preliminary mechanoactivation of the layered silicate leads to an increase in the elasticity, modulus of elasticity and wear resistance of the developed composites while maintaining the breaking strength at the level of the original PTFE.
Dr. Denis Solovev
S.A. Sleptsova et al., "Effect of Mechanically Activated Layered Silicate on the Properties and Structure of Polytetrafluoroethylene", Materials Science Forum, Vol. 945, pp. 384-388, 2019