Reciclagem de embalagens multicamadas poliméricas
Abstract
The objective of this work is to present an overview of the main treatments of
multilayer materials related to recycling, addressing two alternatives, both the
separation of individual components, including delamination and selective dissolution
methodologies with precipitation of one of the components, and the formation of blends
in thermomechanical recycling, and their physical and reactive compatibilization
systems, as well as envisioning the use of organometallic additives, such as neoalkoxy
titanate (Lica 12) to enable repolymerization of post-consumer packaging. With the
increasing demand for sustainable solutions, the industry has been evolving in
research and technologies that aim at environmental and consumer awareness. The
study pointed out that physical compatibilization improves the quality of the polymer
mixture, resulting in an increase in mechanical strength and toughness of the material.
However, the chemical bonding promoted by reactive compatibilization results in a
mixture with higher adhesion. In addition, repolymerization is a promising alternative
for the recycling of post-consumer multilayer packaging, as it allows the regeneration
of urban solid waste to a state closer to the original.
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