Chemical functionalization of ceramic tile surfaces by silane coupling agents: polymer modified mortar adhesion mechanism implications

Materials Research

Alexandra Ancelmo Piscitelli Mansur²  Otávio Luiz Do Nascimento¹  Wander Luiz Vasconcelos²  Herman Sander Mansur² 

[1] ,Federal University of Minas Gerais Department of Metallurgical and Materials Engineering Belo Horizonte MG ,Brazil

关键词: polymer modified mortar;    cladding;    ceramic modifiers;    bond strength;   

DOI  :  10.1590/S1516-14392008000300011

来源: SciELO

【 摘 要 】

Adhesion between tiles and mortars are crucial to the stability of ceramic tile systems. From the chemical point of view, weak forces such as van der Waals forces and hydrophilic interactions are expected to be developed preferably at the tiles and polymer modified Portland cement mortar interface. The main goal of this paper was to use organosilanes as primers to modify ceramic tile hydrophilic properties to improve adhesion between ceramic tiles and polymer modified mortars. Glass tile surfaces were treated with several silane derivatives bearing specific functionalities. Contact angle measurements and Fourier Transform Infrared Spectroscopy (FTIR) were used for evaluating the chemical changes on the tile surface. In addition, pull-off tests were conducted to assess the effect on adhesion properties between tile and poly(ethylene-co-vinyl acetate), EVA, modified mortar. The bond strength results have clearly shown the improvement of adherence at the tile-polymer modified mortar interface, reflecting the overall balance of silane, cement and polymer interactions.

【 授权许可】

CC BY   
 All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License