About this Abstract |
Meeting |
2022 TMS Annual Meeting & Exhibition
|
Symposium
|
Characterization of Minerals, Metals and Materials 2022
|
Presentation Title |
Influence of pH Regulating Additives on the Performance of Granite Waste Based Paints |
Author(s) |
Márcia Maria Salgado Lopes, Leonardo G. Pedroti, Hellen Regina de Carvalho Veloso Moura, José Maria Franco de Carvalho, José Carlos Lopes Ribeiro, Gustavo Henrique Nalon |
On-Site Speaker (Planned) |
Leonardo G. Pedroti |
Abstract Scope |
The production of paints containing waste from granite processing has been studied as an alternative pathway to sustainable development. However, the low stabilization of polyvinyl acetate resin (PVA) due to the basic pH of the waste is a limitation of these paints. Therefore, the aim of this study is to evaluate the influence of pH regulating additives on the performance of PVA latex paints based on granite waste. The waste was characterized physically, chemically, mineralogically, and morphologically. Two pH-regulating additives (citric acid and sulfuric acid) were tested, considering different proportions of waste and resin used to produce the paints. Experimental tests were carried out to determine the hiding power of the dry paint and the resistance to wet abrasion without abrasive paste. Paints produced with sulfuric acid showed better performance, as the additive positively influenced the abrasion resistance and did not significantly affect the hiding power of the paints. |
Proceedings Inclusion? |
Planned: |
Keywords |
Polymers, Powder Materials, Sustainability |