Incorporation of tetraethylorthosilicate (TEOS) in biodegradable films based on bean starch ( Phaseolus vulgaris )

Lima, Karina Oliveira; Biduski, Bárbara; Silva, Wyller Max Ferreira da; Ferreira, Silvia Moreira; Montenegro, Lara M. P.; Bianchini, Daniela

doi:10.1016/j.eurpolymj.2017.02.008

Cited by 14 publications

(8 citation statements)

References 36 publications

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“…However, the characteristic peaks appeared at 466.6 cm −1 and 973.8 cm −1 in the PVDF composite separator with TEOS added. It can be seen from the literature that these are the vibrational absorption peaks of Si-O-Si and Si-OH, respectively [24]. Combined with SEM and XRD analysis results, it can be concluded that TEOS decomposes with water in the phase separation process, but its decomposition product is too small or amorphous, resulting in the absence of decomposition products in the SEM and XRD results.…”

Section:  (Degree)mentioning

confidence: 83%

An enhanced poly(vinylidene fluoride) matrix separator with TEOS for good performance lithium-ion batteries

Liu

Wang

et al. 2018

J Solid State Electrochem

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The low crystallinity poly(vinylidene fluoride)/tetraethyl orthosilicate silane (PVDF/TEOS) composite separator with a fingerlike pore structure for lithium-ion battery has been successfully prepared by non-solvent-induced phase separation (NIPS) technique. The PVDF/TEOS composite separator shows the excellent wettability and electrolyte retention properties compared with Celgard 2320 separator. AC impedance spectroscopy results indicate that the novel PVDF/TEOS composite separator has ion conductivity of 1.22 mS cm −1 at 25°C, higher than that of Celgard 2320 separator (0.88 mS cm −1). The lithium-ion transference number of PVDF composite separator added 0.7% TEOS was 0.481, better than that of Celgard 2400 (0.332). What is more, the lithium-ion batteries assembled with PVDF/TEOS composite separator show good cycling performance and rate capability.

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Section:  (Degree)mentioning

confidence: 83%

An enhanced poly(vinylidene fluoride) matrix separator with TEOS for good performance lithium-ion batteries

Liu

Wang

et al. 2018

J Solid State Electrochem

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“…Starch and cellulose are crystalline in nature and hence, they need to be modified using various chemicals to make them easy to process [11][12]. They can further be combined with other synthetic biodegradable polymers in order to overcome their individual drawbacks and prepare multi-functional biodegradable polymer blends or composites [14,20,35].…”

Section: Natural Biodegradable Polymersmentioning

confidence: 99%

“…On the other hand, tetraethylhydrosilicates (TEOS) incorporated in the carioca starch based film using in situ condensation technique to improve the mechanical properties and to reduce the overall hydrophilicity of the film were prepared by Lima et al This improvement in the properties can be because of migration of silica to the boundaries of the film and due to the interaction between starch and TEOS. It was demonstrated that incorporation of 40% TEOS in the film gave optimum film properties [14]. Mendes et al synthesized polymer blends containing thermoplastic cornstarch (TPS) matrix and thermoplastic chitosan (TPC) as the reinforcement using melt extrusion technique.…”

Section: Starch Based Biodegradable Polymersmentioning

confidence: 99%

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Recent Advances in Biodegradable Polymers

Dhamaniya¹,

Gupta²,

Kakatkar³

2018

J. Res. Updates Polym. Sci.

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Biodegradable polymers are important as an alternative to conventional non-degradable polymers for sustainable eco-system. The recent trends indicate that the new developments in biodegradable polymers focus on novel polymer systems that can cater the need of biomedical and packaging applications in-terms of performance and economics. The new interest is rapidly moving toward reducing carbon footprint through utilization of carbon dioxide and developing new methods of manufacturing such as 3D printing for specific purposes. This review focus on the present state-of-art and recent developments in biodegradable polymers covering their sources, synthetic methodologies, salient properties, degradation patterns, polymer blends and nanocomposites. As well as biodegradable polymers as a 3D printing material and the use of carbon dioxide as a renewable raw material for biomedical and packaging applications.

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“…Legume starch contains more amylose, dietary fiber, and resistant starch than cereal and pseudocereal starches (Nissar et al 2017). Therefore, further research on legume starches is required to develop food and non-food applications (Lima et al 2017).…”

Section: Introductionmentioning

confidence: 99%

Composition, structure, and physicochemical characteristics of pigeon pea (Cajanus cajan) starches from Indonesia

et al. 2021

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Abstract. A’yuni NRL, Marsono Y, Marseno DW, Triwitoyo P. 2021. Composition, structure, and physicochemical characteristics of pigeon pea (Cajanus cajan) starches from Indonesia. Biodiversitas 22: 3430-3439. Information on the characteristics of pigeon pea (Cajanus cajan (L.) Millsp.) starch would provide a scientific basis for developing its application. However, data about characteristics of pigeon pea starch, especially from the Southeast Asia region, has been limited. This study determined the composition, structure, and physicochemical characteristics of pigeon pea starches from three different Indonesian regions, i.e., Bali, Yogyakarta, and West Nusa Tenggara (NTB). We also investigated the potential application of Indonesian pigeon pea starches. Pigeon pea starch was extracted using a wet method, and then pigeon pea starch was characterized. The yield of pigeon pea starches ranged from 29.83-31.68%. Pigeon pea starches showed a significant difference (P<0.05) in amylose content (54.74-58.51%), relative crystallinity (24.20-28.97%), water-binding capacity (0.70-0.76 g/g), oil binding capacity (0.55-0.58 g/g), swelling power (13.19-14.52 g/g), and solubility (9.48-11.15%). The pasting properties (except for final viscosity) and thermal properties (except for onset temperature and gelatinization enthalpy) differed significantly. Granules of pigeon pea starch were oval to elliptical, with a mean granule diameter of 18.41-19.98 µm. According to X-ray diffraction patterns, pigeon pea starches showed CA type, contained orthorhombic and hexagonal crystals. Pigeon pea starches also showed the same FTIR spectra. The results revealed that the differences in pigeon pea growing locations affect pigeon pea starch's composition and physicochemical properties. The highest amylose content and lowest relative crystallinity were found in Yogyakarta pigeon pea starch. In the future, our findings could be used to develop pigeon pea starch for various food applications.

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Incorporation of tetraethylorthosilicate (TEOS) in biodegradable films based on bean starch ( Phaseolus vulgaris )

Cited by 14 publications

References 36 publications

An enhanced poly(vinylidene fluoride) matrix separator with TEOS for good performance lithium-ion batteries

An enhanced poly(vinylidene fluoride) matrix separator with TEOS for good performance lithium-ion batteries

Recent Advances in Biodegradable Polymers

Composition, structure, and physicochemical characteristics of pigeon pea (Cajanus cajan) starches from Indonesia

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