Banca de QUALIFICAÇÃO: ARTHUR FELIPE MATIAS ALVES

Uma banca de QUALIFICAÇÃO de MESTRADO foi cadastrada pelo programa.
STUDENT : ARTHUR FELIPE MATIAS ALVES
DATE: 16/07/2021
TIME: 14:00
LOCAL: Google Meet: meet.google.com/tbs-eifb-zzb
TITLE:

ECO-COMPOSITE RECYCLED PET WITH INDUSTRY WASTE AND USE OF ADDITIVES FOR POTENTIAL APPLICATION IN TECHNICAL TEXTILES

KEY WORDS:

Brush reject, montmorillonite clay, recycled poly (ethylene terephthalate), hybrid composite, EMA-GMA e EBGMA

PAGES: 80
BIG AREA: Engenharias
AREA: Engenharia Química
SUBÁREA: Tecnologia Química
SPECIALTY: Têxteis
SUMMARY:

Many research works involving the study of composite materials in order to meet the most diverse application of the consumer market are being increasingly developed. These polymeric composites have a great advantage and possibility of application when compared to the use of pure polymer. Hybrid composites become a relevant option for providing varied properties according to the combined action of various loads. The waste from the textile brushing process (RE) is a by-product with a high content of cellulose from the industry. Montmorillonite clay (MMT) is an organically modified filler capable of improving heat resistance, elastic modulus and decreasing flammability. The aim of this work is to develop a hybrid composite material using two types of fillers with different aspect ratio and characteristics, such as dispersed phase in a recycled poly (ethylene terephthalate) matrix (PETrec). In order to improve the properties of recycled PET, ethylene-butyl acrylate-glycidyl methacrylate copolymer (EBGMA) and ethylene-methyl acrylate-glycidyl methacrylate copolymer (EMA-GMA) were added as chemical compatibilization agents in polymeric hybrid composites. The formulations were prepared in two steps, the first step in a single screw extruder was used for the incorporation of the loads and a twin screw extruder was used to mix these loads of the hybrid composites, with subsequent injection molding of test specimens according to ASTM D638 standard. PETrec/RE composites have undergone preliminary tests to evaluate their properties, composition and fiber length before and after extrusion mixing. All polymeric hybrid composites were characterized by melt flow index (MFI) measurements, uniaxial tensile and Shore D hardness tests. The rheological and mechanical results were performed to identify the best formulations of polymeric hybrid composites that have the potential to be used in textile applications, in addition to verifying which of the types of interfacial compatibilization agents that present greater synergism of property in the production of textile yarns. It was concluded that the results obtained in this stage provide conditions to proceed to the next stage of the master's thesis, whose objective is to obtain and characterize these filaments with constant thickness and smaller diameter depending on the accessory under development with this objective applied to textile filaments.

BANKING MEMBERS:
Presidente - 1639676 - EDSON NORIYUKI ITO
Interno - 2239386 - JOSE IVAN DE MEDEIROS
Externa ao Programa - 1150673 - IRIS OLIVEIRA DA SILVA
Externa à Instituição - JUCIKLÉCIA DA SILVA REINALDO - UFRN