A facile evaluation on melt crystallization kinetics and thermal properties of low-density polyethylene (LDPE)/Recycled polyethylene terephthalate (RPET) blends

Wang, Dan; Yang, Bin; Chen, Qinting; Chen, Jin; Su, Lifen; Chen, Peng; Zheng, Zhengzhi; Miao, Jibin; Qian, Jiasheng; Xia, Ru; Shi, You

doi:10.1016/j.aiepr.2019.05.002

Cited by 15 publications

(13 citation statements)

References 38 publications

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“…ermogravimetric analysis (TGA) is known to be an efficient method for estimating the thermal stability of various materials [8,42]. As such, the TGA curves of the MC/PET films along with RPET and original MC were determined in a nitrogen atmosphere and presented in Figure 4.…”

Section: Ermogravimetric Analysismentioning

confidence: 99%

“…Polyethylene terephthalate (PET), an aromatic semicrystalline polymer, has excellent performance characteristics in mechanical strength, inertness to chemical action, resistance to thermal environment, and biocompatibility [1][2][3][4]. Based on these excellent performances, PET is widely used for the production of chemical fiber, films, and bottles [5][6][7][8]. is polymer has also been employed in medical fields as prosthetic components for producing vascular grafts, aortic root, overdentures, and so on [3].…”

Section: Introductionmentioning

confidence: 99%

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A Clean and Sustainable Cellulose-Based Composite Film Reinforced with Waste Plastic Polyethylene Terephthalate

Wang

et al. 2020

Advances in Materials Science and Engineering

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With the widespread use and increasing consumption of PET, the amount of waste PET is growing rapidly, and the accompanied environmental problems will become more and more serious. Therefore, the recycling and reuse of PET are of great significance for not only saving resources but also solving environmental issues. In this study, Methylcellulose (MC) composites reinforced with waste plastics polyethylene terephthalate (PET) were prepared by casting an MC/PET solution with a varying mass ratio of MC to PET. Systematic investigations were performed to reveal the effect of the MC/PET mass ratio on the mechanical property, chemical structure, and thermal properties. The resultant findings indicate that the addition of 3% waste plastics PET to MC could notably enhance the tensile strength by about 24% as compared with neat MC. Interestingly, the elongation of the MC/PET composite kept increasing with increasing waste plastics PET. At the same time, thermal compression treatment could also enhance the mechanical properties of the composite. Moreover, the composites also displayed higher thermal stability than MC. In addition, the crystallinity and morphology of the composite were estimated by XRD and SEM.

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Section: Ermogravimetric Analysismentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

A Clean and Sustainable Cellulose-Based Composite Film Reinforced with Waste Plastic Polyethylene Terephthalate

Wang

et al. 2020

Advances in Materials Science and Engineering

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“…These constituents end up becoming contaminating residues of the environment when the packaging is not properly disposed or treated after its use. This residue can threaten invertebrate species and plants that are the basis of the food chain mainly due to the presence of polyethylene that has long life cycle and high corrosion resistance (Chae & An, 2018;Wang, et al, 2019).…”

Section: Introductionmentioning

confidence: 99%

Estudo do processo de reciclagem de polímero-alumínio residual de embalagens cartonadas

Pauletti¹,

Vicari²,

Klauck³

et al. 2021

RSD

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A complexidade da estrutura das embalagens cartonadas é um dos fatores que impedem o desenvolvimento de processos de reciclagem após o consumo. Os processos utilizados atualmente não conseguem reciclar completamente todos os materiais utilizados nestas embalagens. Os poucos processos economicamente viáveis são aplicados para reciclagem das camadas de papel, deixando como resíduo as camadas combinadas de polietileno e alumínio, conhecidas como resíduos de polímero-alumínio (Poli-Al) das embalagens cartonadas. Nesse contexto, um método de reciclagem para polietileno e alumínio, presente nos resíduos de Poli-Al de embalagens cartonadas pós-consumo, foi pesquisado e desenvolvido utilizando o processo de digestão alcalina de alumínio. Soluções com diferentes concentrações de NaOH foram avaliadas em temperatura ambiente com tempo de tratamento de 24 h. Após os processos de remoção do alumínio, analisou-se os filmes de polietileno e as fases líquida e sólida precipitadas do meio reacional. Microscopia eletrônica de varredura (MEV/FEG), espectroscopia de energia de fluorescência de raios-X dispersiva (EDS), difração de raios-X (DRX), espectrometria de massa com plasma indutivamente acoplado (ICP) e varredura diferencial de calorimetria (DSC) foram usados para as análises. Os resultados indicaram a remoção do alumínio dos filmes de polietileno dos resíduos de Poli-Al com boa eficiência e sem comprometer significativamente as propriedades térmicas do polímero.

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“…Regarding the use of PET bottles, soft drinks and mineral water bottles make up the largest proportion, but it can be found in a wide range of packaging, such as food, cosmetics and pharmaceutical industries as well. In recent years, numerous studies have focused on the blends containing PET and other thermoplastic polymers, such as the characteristics of blends of PET/PP [10], PET/LDPE [11], PET/ABS [12,13], PET/PS [14], PET/PA [15] and PET/PC [16,17]. Hydrolytic and thermal degradation of polyester macromolecules is a major problem in the production of PET containing blends [18].…”

Section: Introductionmentioning

confidence: 99%

Remarkable Role of Experimental Olefin-Maleic-Anhydride Copolymer Based Compatibilizing Additives in Blends of Waste PET Bottles and Polyamide

Nagy

Varga

Kontos

et al. 2020

Waste Biomass Valor

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Over the past 50 years demand for plastics drastically increased worldwide resulting in plastic wastes causing serious environmental problems. The main market sector of European plastics industry is the packaging industry most of which are polyolefins and poly(ethylene-terephtalate). In the EU, 29.1 million tonnes of plastic waste were collected in 2018, of which 32.5% was recycled, 42.6% was recovered for energy, and 24.9% was landfilled (Plastics-the Facts, 2019). Although landfilling of collected waste in the EU is steadily declining, there is still too much unused waste. Polymer blends based on waste resources can solve the issues of recycling. The main purpose of the research was to produce polymer blends from waste based PET that have appropriate mechanical properties and rheological behaviour as well in order to find application areas where product requirements are not strict. Blends containing waste based PET were extrusion moulded and calenderd producing extrusion strings and films. Rheological and tensile properties of three types of PET/engineering thermoplastic blends (PET/PC, PET/PA and PET/ABS) were studied. Miscibility of components of the blends is limited leading to weak mechanical properties such as low tensile strength and/or elongation at break. Due to that phenomenon compatibilizing additives are also required. As compatibilizing additives olefin-maleic-anhydride copolymer based additives have been used in our experiments. Structure of additives differed from each other both in ratio and length of carbon chains of compounds linked to maleic-anhydride groups. Blends have been studied with PET content ranging from 10 to 90%. As an outstanding result improving of mechanical properties was achieved, for example almost 40% growth was observed in elongation at break of extruded 80/20 PET/PA blends in the presence of 0.2% compatibilizing additive compared to the sample without additive, meanwhile its strength has also improved. Graphic Abstract

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A facile evaluation on melt crystallization kinetics and thermal properties of low-density polyethylene (LDPE)/Recycled polyethylene terephthalate (RPET) blends

Cited by 15 publications

References 38 publications

A Clean and Sustainable Cellulose-Based Composite Film Reinforced with Waste Plastic Polyethylene Terephthalate

A Clean and Sustainable Cellulose-Based Composite Film Reinforced with Waste Plastic Polyethylene Terephthalate

Estudo do processo de reciclagem de polímero-alumínio residual de embalagens cartonadas

Remarkable Role of Experimental Olefin-Maleic-Anhydride Copolymer Based Compatibilizing Additives in Blends of Waste PET Bottles and Polyamide

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