| Journal: | Maderas : ciencia y tecnología |
| Database: | |
| System number: | 000535223 |
| ISSN: | 0718-221X |
| Authors: | Zanatta, Paula1 Lazarotto, Marília2 Gonzalez de Cademartori, Pedro Henrique3 Cava, Sérgio da Silva1 Moreira, Mário Lúcio1 Gatto, Darci Alberto1 |
| Institutions: | 1Universidade Federal de Pelotas Centro de Desenvolvimento Tecnológico, Pelotas RS. Brasil 2Universidade Federal do Rio Grande do Sul Departmento de Agronomia, Porto Alegre RS. Brasil 3Universidade Federal do Paraná, Curitiba PR. Brasil 4Universidade Federal de Pelotas Instituto de Física e Matemática Departamento de Fisica, Pelotas RS. Brasil |
| Year: | 2017 |
| Volumen: | 19 |
| Number: | 4 |
| Pages: | 495-506 |
| Country: | Chile |
| Language: | Inglés |
| English abstract | This study aimed to synthesize titanium dioxide nanoparticles by microwave-assisted hydrothermal method to incorporate them to the structure of Pinus elliottii wood. The color changes and the decay resistance of impregnated wood was investigated. The titanium dioxide nanoparticles were impregnated into Pinus elliottii wood by vacuum-pressure and simple immersion methods. Furthermore, Pinus elliottii wood was treated with chromated copper borate solution tocompare their effectiveness to the titanium dioxide treated wood. The titanium dioxide nanoparticles impregnated by vacuum-pressure were presented especially on the wood surface, forming a homogeneous coating. The titanium dioxide nanoparticles did not change the natural color of wood and, at the same time, decreased the degree of the white rot fungus (Ganoderma applanatum) colonization in the wood structure and the wood decay, compared to the untreated one. The titanium dioxide treated wood samples provided similar protection against decay in comparison to wood treated with chromated copper borate. The impegnation with titanium dioxide nanoparticles can be a good alternative to decrease/avoid the fungi proliferation, providing to Pinus elliottii wood a self-cleaning mechanism. |
| Keyword: | Ganoderma applanatum, Hydrothermal microwave, Pinus elliottii, Vacuum-pressure method, Wood preservation |
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