Síntese, caracterização e aplicação de partículas submicrométricas de caco3 como sistema carreador para o carbendazim

• Autor(a) principal: Silva, Majara Raquel de Melo
• Data de Publicação: 2019
• Tipo de documento: Dissertação
• Idioma: por
• Título da fonte: Repositório Digital da Universidade Federal Rural do Semi-Árido (RDU)
• Texto Completo: https://repositorio.ufersa.edu.br/handle/prefix/4486
• topic: Pesticidas; Carbendazim; Partículas; Carbonato de cálcio; Liberação controlada; Pesticides; Carbendazim; Particles; Calcium carbonate; Controlled release; ENGENHARIAS::ENGENHARIA DE MATERIAIS E METALURGICA

The Brazilian and global agricultural production has increased significantly over the years, which has increased the use of pesticides on the same scale. They have been used in alarming concentrations and have caused soil, water and air pollution, in addition to presenting a risk to human health. The present work presents an alternative to reduce the damages caused by pesticides, as well as increase their biological effectiveness, from the loading of the active ingredient carbendazim into an inorganic particle of calcium carbonate. This carrier system presented high encapsulation efficiency, of approximately 99%. The pure calcium carbonate particles showed size ranging from 490 nm to 1000 nm, while the particles loaded with carbendazim showed size between 148 nm and 290 nm. The release of carbendazim in 72 hours was 93%. From these results, it can be affirmed that this system allows the controlled release of the fungicide carbendazim, being an effective alternative to the conventional use of pesticides