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This work aimed to study a high density polyethylene biocomposite with rice husk and organic oxy-biodegradable with resistance to the phenomenon of stress cracking (ESC) for the production of packaging. For this, 2 composites were produced: one made of high density polyethylene with 20% rice husks (HDPE / CA) and the other made of polyethylene with rice husks and organic oxy-biodegradable (HDPE / CA / EG). Mechanical traction tests were performed with and without a surfactant that causes stress cracking. SEM images showed the formation of microfibrils between the rice husk particles and the polyethylene, showing good adhesion between the particle and the polymeric matrix. For the deformation at break, yield stress and elastic modulus, the HDPE / CA / EG composite showed no significant difference when performing the mechanical tests with and without the agent causing stress cracking. It is concluded that the composite HDPE / CA / EG showed interesting results, since the organic oxy-biodegradant did not influence the tests with and without the cracking stress agent, being an interesting biocomposite to be used for the injection of shampoo, soap, detergent packages. , among others.

BIOCOMPÓSITO DE POLIETILENO DE ALTA DENSIDADE COM CASCA DE ARROZ E OXIBIODEGRADANTE ORGÂNICO PARA A PRODUÇÃO DE EMBALAGENS BIODEGRADÁVEIS