The Importance of Ionic Liquids in the Modification of Starch and Processing of Starch-Based Materials

Ptak, Sylwia Marianna; Żarski, Arkadiusz; Kapuśniak, Janusz

doi:10.3390/ma13204479

Cited by 24 publications

(20 citation statements)

References 81 publications

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“…It was also confirmed by the higher crosslinking density of the vulcanizates containing starch. In the case of BmiCl, it probably resulted from the ability of BmiCl to dissolve the starch, and thus the compatibility of starch with NR elastomer was enhanced compared to rubber composites without BmiCl [ 18 , 53 , 54 ]. In contrast, the positive effect of APTES on the crosslinking reactions could result from the possible combining of organo-silanes with starch and forming C-Si-O-connects with the hydrogen bonding.…”

Section: Resultsmentioning

confidence: 99%

“…Moreover, direct incorporation of hydrophilic starch into natural rubber (NR) matrix results in deterioration of the mechanical properties of NR composites [ 12 ]. Therefore, several approaches have been conducted to improve the compatibility between the starch and NR elastomer, i.e., modification of polymer matrix before mixing with starch [ 15 ], application of compatibilizer to improve the interaction between starch and polymer matrix [ 16 ] or starch modification before mixing with a polymer [ 17 , 18 ].…”

Section: Introductionmentioning

confidence: 99%

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The Potential Application of Starch and Walnut Shells as Biofillers for Natural Rubber (NR) Composites

Sowińska‐Baranowska

Maciejewska

Duda

2022

IJMS

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The goal of this study was application of corn starch and ground walnut shells in various amounts by weight as biofillers of natural rubber (NR) biocomposites. Additionally, ionic liquid 1-butyl-3-methylimidazolium chloride (BmiCl) and (3-aminopropyl)-triethoxysilane (APTES) were used to increase the activity of biofillers and to improve the curing characteristics of NR composites. The effect of biofillers used and their modification with aminosilane or ionic liquid on the curing characteristics of NR composites and their functional properties, including crosslink density, mechanical properties in static and dynamic conditions, hardness, thermal stability and resistance to thermo-oxidative aging were investigated. Starch and ground walnut shells were classified as inactive fillers, which can be used alternatively to commercial inactive fillers, e.g., chalk. BmiCl and APTES were successfully used to support the vulcanization and to improve the dispersion of biofillers in NR elastomer matrix. Vulcanizates with starch, especially those containing APTES and BmiCl, exhibited improved tensile properties due to the higher crosslink density and homogenous dispersion of starch, which resulted from BmiCl addition. NR filled with ground walnut shells demonstrated improved resistance to thermo-oxidative aging. It resulted from lignin present in walnut shells, the components of which belong to polyphenols, that have an antioxidant activity.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

The Potential Application of Starch and Walnut Shells as Biofillers for Natural Rubber (NR) Composites

Sowińska‐Baranowska

Maciejewska

Duda

2022

IJMS

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“…The ionic liquids can be divided in three groups: cation, anion, and physical state at room temperature. 1-butyl-3-methylimidazolium chloride [BMIM]Cl and 1-allyl-3-methylimidazolium chloride [AMIM]Cl were the predominant Ionic solvents and reaction media for starches such as corn starch [ 130 ]. Corn starch was grafted in [AMIM]Cl and [BMIM]Cl, which enhances the gelatinized and catalyze the decomposition [ 131 , 132 ].…”

Section: Properties Improvement Techniquesmentioning

confidence: 99%

Corn: Its Structure, Polymer, Fiber, Composite, Properties, and Applications

et al. 2022

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Biocomposite materials have a significant function in saving the environment by replacing artificial plastic materials with natural substances. They have been enrolled in many applications, such as housing, automotive engine components, aerospace and military products, electronic and circuit board components, and oil and gas equipment. Therefore, continuous studies have been employed to improve their mechanical, thermal, physical properties. In this research, we conduct a comprehensive review about corn fiber and corn starch-based biocomposite. The results gained from previous studies were compared and discussed. Firstly, the chemical, thermal, and mechanical properties of cornstarch-based composite were discussed. Then, the effects of various types of plasticizers on the flexibility of the cornstarch-based composite were addressed. The effects of chemical treatments on the properties of biocomposite using different cross-linking agents were discussed. The corn fiber surface treatment to enhance interfacial adhesion between natural fiber and polymeric matrix also were addressed. Finally, morphological characterization, crystallinity degree, and measurement of vapor permeability, degradation, and uptake of water were discussed. The mechanical, thermal, and water resistance properties of corn starch and fibers-based biopolymers show a significant improvement through plasticizing, chemical treatment, grafting, and cross-linker agent procedures, which expands their potential applications.

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“…The literature reports from the last few years show that ionic liquids can be used for efficient biocatalysis [ 7 , 8 ]. In addition, it is worth noting that although they proved to be sufficiently good solvents and reaction media for starches of various botanical origins, for the purposes of esterification and transesterification, they were used mostly for corn starches, with different content of individual fractions, in reactions without the use of a catalyst or catalyzed by pyridine or lipases ( Table 3 ) [ 144 , 145 , 146 ].…”

Section: The Methods To Improve Processing Properties Of Starchmentioning

confidence: 99%

Review of the Most Important Methods of Improving the Processing Properties of Starch toward Non-Food Applications

2021

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Starch is the second most abundantly available natural polymer in the world, after cellulose. If we add its biodegradability and non-toxicity to the natural environment, it becomes a raw material very attractive for the food and non-food industries. However, in the latter case, mainly due to the high hydrophilicity of starch, it is necessary to carry out many more or less complex operations and processes. One of the fastest growing industries in the last decade is the processing of biodegradable materials for packaging purposes. This is mainly due to awareness of producers and consumers about the dangers of unlimited production and the use of non-degradable petroleum polymers. Therefore, in the present review, an attempt was made to show the possibilities and limitations of using starch as a packaging material. The most important physicochemical features of this biopolymer are discussed, and special attention is paid to more or less environmentally friendly methods of improving its processing properties.

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The Importance of Ionic Liquids in the Modification of Starch and Processing of Starch-Based Materials

Cited by 24 publications

References 81 publications

The Potential Application of Starch and Walnut Shells as Biofillers for Natural Rubber (NR) Composites

The Potential Application of Starch and Walnut Shells as Biofillers for Natural Rubber (NR) Composites

Corn: Its Structure, Polymer, Fiber, Composite, Properties, and Applications

Review of the Most Important Methods of Improving the Processing Properties of Starch toward Non-Food Applications

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