Influence of hidrofobized limestone as a filler on the mechanical properties of PVC

Abstract

The results have shoun that the break force in the "wet" process increases with 1.51kN for PVC+C at 1.63 kN, in a sample of PVC+CS-3, which is a completely hydrophobized. In the "dry" process, the breaking force increases from 1.51kN in PVC+C to 1.55kN in PVC+CD-3. Breaking limit increases with degree of hydrophobization and the "wet" process from 36.72 MPa in PVC+C to38.17MPa in PVC+CS-1.5 and further to 39.89 MPa in a sample of PVC+CS-3. In the “dry” process, the breaking limit grows from 36.72 MPa for PVC+to 38.26MPa in a sample of PVC+CD-3 with coating degree of 99.90%. Strenght limit also changes with coating degree (hydrophobization), while the strength force remains almost unchanged in both procedures.