Thermal properties of poly(3-hydroxybutyrate) modified by nanoclay

Czerniecka‐Kubicka, Anna; Frącz, Wiesław; Jasiorski, Marek; Błażejewski, Wojciech; Pilch‐Pitera, Barbara; Pyda, M.; Zarzyka, Iwona

doi:10.1007/s10973-016-6039-9

Cited by 30 publications

(17 citation statements)

References 30 publications

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“…The flexural modulus values found for nanocomposite containing 1 wt.% nanoclay increased by approximately 20% in relation to the nonmodified sample. Further increase of nanofiller content caused a decrease in flexural modulus values, but they were still higher than that of neat P3HB [45]. Our findings have shown an increase of 42% in flexural modulus when adding 3 wt.% of montmorillonite to Biomer P3HB (PHB226).…”

Section: Resultsmentioning

confidence: 60%

Sustainable Materials with Enhanced Mechanical Properties Based on Industrial Polyhydroxyalkanoates Reinforced with Organomodified Sepiolite and Montmorillonite

García-Quiles¹,

Cuello

Castell³

2019

Polymers

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Microplastics have become one of the greatest environmental challenges worldwide. To turn this dramatic damage around, EU regulators now want to ensure that plastic itself is fully recyclable or biodegradable. The aim of the present work is to develop a biobased and biodegradable biocomposite based on commercial polyhydroxyalkanoates (PHAs) and nanoclays, with the objective of achieving a reduction of rancid odour while avoiding any loss in thermomechanical properties, thus tackling two key disadvantages of PHAs. This research aims at completely characterising the structural, thermal and mechanical behaviour of the formulations developed, understanding the compatibility mechanisms in order to be able to assess the best commercial combinations for industrial applications in the packaging and automotive sectors. We report the development of nine nanobiocomposite materials based on three types of commercial PHA matrices: a linear poly(3-hydroxybutyrate) (P3HB); two copolymers based on poly(3-hydroxybutyrate)-co-poly(4-hydroxybutyrate) (P3HB-co-P4HB); and nanoclays, which represent a different polar behaviour. Dispersion achieved is highly relevant compared with literature results. Our findings show impressive mechanical enhancements, in particular for P3HB reinforced with sepiolite modified via aminosilanes.

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Section: Resultsmentioning

confidence: 60%

Sustainable Materials with Enhanced Mechanical Properties Based on Industrial Polyhydroxyalkanoates Reinforced with Organomodified Sepiolite and Montmorillonite

García-Quiles¹,

Cuello

Castell³

2019

Polymers

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“…Due to the variations in the structural and chemical compositions of PHA, the physico-chemical characteristics of PHA are different from one another. Bugnicourt et al reported that PHA is water-insoluble, which helps to prevent hydrolysis [ 45 ]. In the absence of oxygen in strike, sedimentary soil and its sinking characteristics in water enhanced biodegradation [ 45 ].…”

Section: Polyhydroxyalkanoate (Pha)mentioning

confidence: 99%

“…Bugnicourt et al reported that PHA is water-insoluble, which helps to prevent hydrolysis [ 45 ]. In the absence of oxygen in strike, sedimentary soil and its sinking characteristics in water enhanced biodegradation [ 45 ]. In addition, they are very biodegradable, inherently piezoelectric, and biocompatible [ 45 ].…”

Section: Polyhydroxyalkanoate (Pha)mentioning

confidence: 99%

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Recent Advances in the Biosynthesis of Polyhydroxyalkanoates from Lignocellulosic Feedstocks

Vigneswari

Noor

Amelia

et al. 2021

Life

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Polyhydroxyalkanoates (PHA) are biodegradable polymers that are considered able to replace synthetic plastic because their biochemical characteristics are in some cases the same as other biodegradable polymers. However, due to the disadvantages of costly and non-renewable carbon sources, the production of PHA has been lower in the industrial sector against conventional plastics. At the same time, first-generation sugar-based cultivated feedstocks as substrates for PHA production threatens food security and considerably require other resources such as land and energy. Therefore, attempts have been made in pursuit of suitable sustainable and affordable sources of carbon to reduce production costs. Thus, in this review, we highlight utilising waste lignocellulosic feedstocks (LF) as a renewable and inexpensive carbon source to produce PHA. These waste feedstocks, second-generation plant lignocellulosic biomass, such as maize stoves, dedicated energy crops, rice straws, wood chips, are commonly available renewable biomass sources with a steady supply of about 150 billion tonnes per year of global yield. The generation of PHA from lignocellulose is still in its infancy, hence more screening of lignocellulosic materials and improvements in downstream processing and substrate pre-treatment are needed in the future to further advance the biopolymer sector.

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“…For this purpose many scientists in the world were carried out a number of laboratory experiments with the use of the microbes, yeast or plant extracts [7] resulting in metal nanoparticles, their oxides and coreshell composites [16]. An attempt of determining the nanoparticle formation mechanism in such experiments became the most important problem.…”

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confidence: 99%

Metal-Humus Acid Nanoparticles - Synthesis, Characterization and Molecular Modeling

Hęclik¹,

Zarzyka²

2021

Pol. J. Environ. Stud.

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In the scientific literature, there is a clear lack of information about deciphering of possible mechanisms of creating metal nanoparticles. The methods described so far are primarily based on the enzymatic reduction (dehydrogenase) relied on the nicotinamidoadenine-dinucleotide (NADH) oxidation [1]. In simultaneous oxidation-reducing reactions, the proper environment was created because of need for reducing metal cations, most often to the form of non-reactive metallic nanoparticles. Similar applications were also shown by reducing sugars [2] or flawonoids [3][4][5][6], as examples of chemical compounds of natural origin. The idea of formation nanoparticles was based on the use of an environment that had properties of reducing metal cations to inert particles having most often nanometric dimensions. With the increase in public awareness

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Thermal properties of poly(3-hydroxybutyrate) modified by nanoclay

Cited by 30 publications

References 30 publications

Sustainable Materials with Enhanced Mechanical Properties Based on Industrial Polyhydroxyalkanoates Reinforced with Organomodified Sepiolite and Montmorillonite

Sustainable Materials with Enhanced Mechanical Properties Based on Industrial Polyhydroxyalkanoates Reinforced with Organomodified Sepiolite and Montmorillonite

Recent Advances in the Biosynthesis of Polyhydroxyalkanoates from Lignocellulosic Feedstocks

Metal-Humus Acid Nanoparticles - Synthesis, Characterization and Molecular Modeling

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