The mechanical properties of polyethylene-terephthalate (PET) and polylactic-acid (PDLLA and PLLA), the influence of material structure on forming

Horváth, Tibor; Kalman, Mark; Szabó, Tamás; Кириленко, Роман Григорович; Zsoldos, Gabriella; Kollár, Mariann

doi:10.1088/1757-899x/426/1/012018

Cited by 15 publications

(4 citation statements)

References 6 publications

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“…In recent years it has also been used for the investigation of the crystallization of PHA materials [19]. In Table 1, representative mechanical properties of P3(HB) are displayed [18,[20][21][22][23] in comparison to PP [24], PET [25], PE (LDPE-low density PE [26] and HDPE-high density PE [27]) and PLA (PLLA and PDLLA) [25,28].…”

Section: Polyhydroxybutyrate (Phb)mentioning

confidence: 99%

Production of Polyhydroxybutyrate (PHB) and Factors Impacting Its Chemical and Mechanical Characteristics

et al. 2020

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Plastic pollution is fueling the grave environmental threats currently facing humans, the animal kingdom, and the planet. The pursuit of renewable resourced biodegradable materials commenced in the 1970s with the need for carbon neutral fully sustainable products driving important progress in recent years. The development of bioplastic materials is highlighted as imperative to the solutions to our global environment challenges and to the restoration of the wellbeing of our planet. Bio-based plastics are becoming increasingly sustainable and are expected to substitute fossil-based plastics. Bioplastics currently include both, nondegradable and biodegradable compositions, depending on factors including the origins of production and post-use management and conditions. Among the most promising materials being developed and evaluated is polyhydroxybutyrate (PHB), a microbial bioprocessed polyester belonging to the polyhydroxyalkanoate (PHA) family. This biocompatible and non-toxic polymer is biosynthesized and accumulated by a number of specialized bacterial strains. The favorable mechanical properties and amenability to biodegradation when exposed to certain active biological environments, earmark PHB as a high potential replacement for petrochemical based polymers such as ubiquitous high density polyethylene (HDPE). To date, high production costs, minimal yields, production technology complexities, and difficulties relating to downstream processing are limiting factors for its progression and expansion in the marketplace. This review examines the chemical, mechanical, thermal, and crystalline characteristics of PHB, as well as various fermentation processing factors which influence the properties of PHB materials.

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Section: Polyhydroxybutyrate (Phb)mentioning

confidence: 99%

Production of Polyhydroxybutyrate (PHB) and Factors Impacting Its Chemical and Mechanical Characteristics

et al. 2020

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“…PET packaging is widely used by the food and beverage industries because of its excellent mechanical strength, good chemical resistance, good transparency, and excellent gas-barrier resistance. PET films are also suitable for many other applications due to their excellent mechanical properties [11,12], and good chemical resistance against acids and low concentration of alkalies [13]. The outstanding mechanical and chemical properties of PET create the opportunity to fabricate ultrafiltration membranes from PET.…”

Section: Introductionmentioning

confidence: 99%

Improved permeate flux and rejection of ultrafiltration membranes prepared from polyethylene terephthalate (PET) bottle waste

Kusumocahyo

Ambani

Marceline

2021

Sustain Environ Res

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The vast amount of not-recycled polyethylene terephthalate (PET) bottle waste is a serious threat to the environment. In order to utilize the waste, PET ultrafiltration membranes were prepared using PET bottle waste as the raw material by using the phase inversion technique. Low molecular weight polyethylene glycol (PEG 400) was used as the additive for the membranes. PET resin was also used as the membrane material to compare the properties of the membrane from PET bottle waste and those from the PET resin. The membrane prepared from PET bottle waste and that prepared from PET resin showed similar membrane characteristics such as IR spectra, morphology, hydrophilicity and porosity, indicating that instead of using PET resin, PET bottle waste can be utilized as a source of the polymer material to fabricate low-cost membranes. The morphology, hydrophilicity and porosity of the membranes were strongly affected by the PEG 400 concentration. The analysis of the membrane morphology using Scanning Electron Microscopy showed that the membranes had an asymmetric structure that consisted of a macroporous cross section and a smooth active layer. Increasing the PEG 400 concentration resulted in a smaller pore size, however the hydrophilicity and the porosity of the membranes increased. As a result, the membranes showed an increase in both permeate flux and rejection with increasing concentration of PEG 400 as observed from the results of the ultrafiltration experiments. Using Bovine Serum Albumin as a solute model in the feed, high values of rejection of up to 94% were achieved. Thus, ultrafiltration membranes with improved permeate flux and rejection could be prepared from PET bottle waste by the addition of PEG 400 as the additive.

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“…PET lms are also suitable for many other applications due to their excellent mechanical properties [11,12], and good chemical resistance against acids and low concentration of alkalies [13]. The outstanding mechanical and chemical properties of PET open the opportunity to fabricate ultra ltration membranes from PET.…”

Section: Introductionmentioning

confidence: 99%

Improved Permeate Flux and Rejection of Ultrafiltration Membranes Prepared From Polyethylene Terephthalate (PET) Bottle Waste

Kusumocahyo

Ambani

Marceline

2021

Preprint

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Polyethylene terephthalate (PET) ultrafiltration membranes were prepared using two different sources of polymer material, namely PET bottle waste and PET resin. The membrane prepared from PET bottle waste and that prepared from PET resin showed similar membrane characteristics such as IR spectra, morphology, hydrophilicity and porosity, indicating that instead of using PET resin, PET bottle waste can be utilized as a source of the polymer material to fabricate low-cost membranes. The morphology, hydrophilicity and porosity of the membranes were strongly affected by the additive concentration. The analysis of the membrane morphology using Scanning Electron Microscopy (SEM) showed that the membranes had an asymmetric structure that consists of a macroporous cross section and a smooth active layer. Increasing the additive concentration of polyethylene glycol (PEG 400) resulted in a smaller pore size, however the hydrophilicity and the porosity of the membranes increased. As a result, the membranes showed an increase in both permeate flux and rejection with increasing concentration of PEG 400 as observed from the results of the ultrafiltration experiments. Using Bovine Serum Albumin as a solute model in the feed, high values of rejection of up to 93.9 % were achieved.

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The mechanical properties of polyethylene-terephthalate (PET) and polylactic-acid (PDLLA and PLLA), the influence of material structure on forming

Cited by 15 publications

References 6 publications

Production of Polyhydroxybutyrate (PHB) and Factors Impacting Its Chemical and Mechanical Characteristics

Production of Polyhydroxybutyrate (PHB) and Factors Impacting Its Chemical and Mechanical Characteristics

Improved permeate flux and rejection of ultrafiltration membranes prepared from polyethylene terephthalate (PET) bottle waste

Improved Permeate Flux and Rejection of Ultrafiltration Membranes Prepared From Polyethylene Terephthalate (PET) Bottle Waste

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