Processing and characterization of biodegradable products based on starch

Funke, Ulrike; Bergthaller, W.; Lindhauer, Meinolf Georg

doi:10.1016/s0141-3910(97)00163-8

Cited by 157 publications

(61 citation statements)

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“…-Reduced water sensitivity due to fi ber-matrix interactions and to the higher hydrophobic character of the cellulose, which is linked to its high crystallinity, 25,45,46,48,50 -Reduced post-processing ageing, due to the formation of a 3D network between the diff erent matrix-fi ller carbohydrates based on hydrogen bonds. …”

Section: Cellulose Fi Ber Reinforcementmentioning

confidence: 99%

Biocomposites based on plasticized starch

Avérous

Halley

2009

Biofuels Bioprod Bioref

186

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The potential of biodegradable polymers, and more particularly that of polymers obtained from agro resources, such as polysaccharides like starch, has long been recognized. This paper examines the effects of sustainable materials based on starch on the macro or nanostructure and subsequent processing, thermomechanical properties and performance properties of plasticized starch polymers. This examination includes a detailed review of the complexity of starch polymers, recent advances in novel starch modifi cations and compounds, and a detailed examination of the effects of plasticized starch macro-biocomposites and nano-biocomposites. Specifi c structures and subsequent properties are controlled by many specifi c factors, such as fi ller shape, size and surface chemistry, processing conditions and environmental aging. In the case of nano-biocomposites, it is evident that nanomaterials polymer matrix interfacial interactions are extremely important to the fi nal nanostructures and performance of these materials.

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Section: Cellulose Fi Ber Reinforcementmentioning

confidence: 99%

Biocomposites based on plasticized starch

Avérous

Halley

2009

Biofuels Bioprod Bioref

186

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“…In addition, fibres can be used as reinforcements for SBs to overcome these problems. Various types of fibres have been discussed in the literature, including cellulosic microfibrils (Dufresne and Vignon 1998), natural fibres (Wollerdorfer and Bader 1998), and commercial regenerated cellulose fibres (Funke et al 1998).…”

Section: Introductionmentioning

confidence: 99%

Morphological, Thermal, and Mechanical Properties of Starch Biocomposite Films Reinforced by Cellulose Nanocrystals From Rice Husks

Johar¹,

Ahmad²

2012

BioResources

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A series of glycerol-plasticized starch composites reinforced by rice-husk cellulose nanocrystals was successfully fabricated through the solution casting technique. The rice husks must undergo alkali treatment, bleaching, and sulphuric acid hydrolysis before cellulose nanocrystals can be produced. The cellulose nanocrystal content used as filler was varied from 0 to 10 wt%. The thermal stability of the composite were analysed by thermogravimetric analysis (TGA) and derivative thermogravimetry (DTG). The starch biocomposite films reinforced with rice-husk cellulose nanocrystals showed improved tensile strengths and tensile moduli. Transmission electron microscopy (TEM) was used to determine the diameter and length distribution of the cellulose nanocrystals. Field emission scanning electron microscopy (FESEM) showed that the cellulose nanocrystals (CNCs) were well distributed in the matrix. At the optimum 6% filler loading, the cellulose nanocrystals exhibited a higher reinforcing efficiency in the plasticized starch biocomposites than at any other filler loading.

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“…3 Biodegradable starch-based plastics such as starch/ cellulose and starch/poly(vinyl alcohol) (PVA) have recently been investigated for their great potential marketability in agricultural foils, garbage and composting bags, and food packaging, in the fast food industry, and in biomedical fields. [4][5][6][7] PVA is a versatile polymer with many industrial applications, and it may be the only synthesized polymer whose backbone is mainly composed of CÀ ÀC bonds that is absolutely biodegradable. 8 PVA is the most readily biodegradable of vinyl polymers.…”

Section: Introductionmentioning

confidence: 99%

Preparation of resistant starch/poly(vinyl alcohol) blend films with added plasticizer and crosslinking agents

Yoon

Chough

Park

2007

J of Applied Polymer Sci

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We report on the physical properties of films synthesized with native corn starch (NCS) and resistant starch (RS4) prepared with NCS. NCS and RS4/poly(-vinyl alcohol) (PVA) blend films were synthesized with a mixing process and casting method. Glycerol (GL) and citric acid (CA) were used as additives. Glutaraldehyde (GLU) was used as a crosslinking agent of the films. RS4 was synthesized with sodium trimetaphosphate and sodium tripolyphosphate as a crosslinker. Then, the RS4 thus synthesized was confirmed by the pancreatin-gravimetry method, swelling power, differential scanning calorimetry, and X-ray diffraction. The tensile strength, elongation, swelling behavior, and solubility of the films were measured. The results of the measurements indicated that the RS4-added film was better than the NCS-added film. In particular, the RS4/PVA blend film with CA as an additive showed physical properties superior to those of the other films. Also, the physical properties with GLU added as a crosslinking agent to the films were investigated. With increasing GLU contents, the tensile strength increased but the elongation, swelling behavior, and solubility values of the GL-added and CA-added films decreased.

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Processing and characterization of biodegradable products based on starch

Cited by 157 publications

References 0 publications

Biocomposites based on plasticized starch

Biocomposites based on plasticized starch

Morphological, Thermal, and Mechanical Properties of Starch Biocomposite Films Reinforced by Cellulose Nanocrystals From Rice Husks

Preparation of resistant starch/poly(vinyl alcohol) blend films with added plasticizer and crosslinking agents

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