Estudo da liberação controlada do herbicida ametrina em compósitos à base de PVA: carvão ativado

Química Nova

Ricardo Bortoletto-santos²  Caue Ribeiro¹ 

[1] ,Universidade de São Paulo Instituto de Química de São Carlos São Carlos SP ,Brasil

关键词: adsorption;    activated carbon;    controlled release;   

DOI  :  10.5935/0100-4042.20140182

来源: SciELO

【 摘 要 】

Herbicides have great importance in agricultural productivity for weed control, given their competition with crops. However, inadequate application of herbicides may lead to environmental problems, which can be minimized through controlled release of the active compounds. This may be achieved by protecting the herbicide in a structure with adequate porosity, where the diffusional behavior can determine release. Thus, in this study we evaluated a novel structure, a composite based on activated carbon bonded by polyvinyl alcohol (PVA) as pellets, to deliver a triazine herbicide. The product obtained was shown to be adequate for its purpose, since it was possible to process regular pellets, where the PVA percentage determined the properties.

【 授权许可】

CC BY-NC   
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