Banca de QUALIFICAÇÃO: MEYRELLE FIGUEIREDO LIMA

Uma banca de QUALIFICAÇÃO de DOUTORADO foi cadastrada pelo programa.
STUDENT : MEYRELLE FIGUEIREDO LIMA
DATE: 22/10/2024
TIME: 10:00
LOCAL: Google meet
TITLE:

Development of polymeric films based on sodium alginate and pineapple crown (Ananas comosus (L) Merr.)

KEY WORDS:

biodegradable plastics; agro-industrial residues; polymer films; pineapple crown; biopolymer characterization.

 

PAGES: 49
BIG AREA: Engenharias
AREA: Engenharia Química
SUBÁREA: Tecnologia Química
SPECIALTY: Alimentos
SUMMARY:

The increasing consumption of non-biodegradable plastics, due to their high resistance and durability, has caused significant environmental impacts, resulting in the accumulation of waste that compromises the integrity of ecosystems and biodiversity. This situation urgently calls for sustainable technological alternatives to mitigate the effects of plastic pollution. The partial or total replacement of synthetic polymers derived from petrochemical sources with biodegradable polymers of natural origin has gained prominence in the packaging industry. In this context, the use of agro-industrial residues, such as pineapple crown (Ananas comosus), emerges as a viable and innovative solution for biopolymer production. The present research project aims to develop biodegradable polymer films from pineapple crown biomass, employing a central composite design (CCD) to optimize the component concentrations. The film fabrication methodology will utilize the casting process, allowing for the formation of homogeneous films from polymeric dispersions. The resulting biopolymers will undergo extensive characterization, including morphological analyses via scanning electron microscopy (SEM), thermal analyses through thermogravimetric analysis (TGA) and differential scanning calorimetry (DSC), as well as physicochemical and mechanical characterizations such as tensile strength and elongation. These properties will be correlated with the feasibility of the films as a material for biodegradable packaging, aiming to meet the technical and environmental requirements of the sustainable packaging industry. Additionally, the proposal includes the analysis of the materials’ biodegradability under simulated environmental conditions, in order to assess their complete life cycle, providing a technical solution to the industrial market that aligns with the principles of the circular economy and sustainability.

COMMITTEE MEMBERS:
Presidente - 1753094 - ALCIDES DE OLIVEIRA WANDERLEY NETO
Interno - ***.674.113-** - DENNYS CORREIA DA SILVA - UFRN
Externa ao Programa - 2203888 - MARCIA RODRIGUES PEREIRA - UFRNExterno à Instituição - JHONATAN JAIR ARISMENDI FLOREZ - USP