Physical and Mechanical Properties of Walnut Shell Flour-Filled Thermoplastic Starch Composites

Sarsari, Narjes Abdolhosseini; Pourmousa, Shademan; Tajdini, Ajang

doi:10.15376/biores.11.3.6968-6983

Cited by 18 publications

(16 citation statements)

References 38 publications

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“…Similar trend, i.e. enhanced mechanical properties with plant bers addition was observed for thermoplastic starch based system containing walnut [30] or banana leaf bers [35].…”

Section: Cms/cmc Composite Lms With Plant Llerssupporting

confidence: 77%

“…In Figure 5 the moisture absorption of CMS/CMC lms and CMS/CMC/S composites containing 7 wt.% of various plant ller were presented. Water absorption depends on ller-matrix interphase as well as ller hydrophilic/hydrophobic character [30]. For polyole n-based composites it was reported that wood bers were primarily responsible for water absorption [31].…”

Section: Cms/cmc Composite Lms With Plant Llersmentioning

confidence: 99%

“…Adding the plant ller resulted in enhanced mechanical performance of composite: increased tensile strength and Young's modulus, with elongation at break reduction. The plant brous act as mechanical reinforcement of CMS/CMC attributed to well-formed interfacial interaction between the ller and polysaccharide matrix allowing stress transfer from the matrix to the ller [30]. Moreover, reduction of the material exibility could have occurred due to formation of the hydrogen bonds between the hydroxyl and carboxyl groups of CMS/CMC and natural particles [9,33].…”

Section: Cms/cmc Composite Lms With Plant Llersmentioning

confidence: 99%

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Effect of Grain Husk Microfibers on Physicochemical Properties of Carboxymethyl Polysaccharides-based Composite

Wilpiszewska

Antosik

2021

Preprint

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Preparation of the novel biodegradable composite based on carboxymethylated starch and cellulose matrix and plant fillers have been described. As a filler milled cereal husks of various origin: rye, spelt, and rice were used. Additionally, softwood flour was used for comparison. Introducing natural filler beneficially affected the mechanical parameters of the CMS/CMC system, as moisture absorption as well as solubility in water decreased (e.g. by ca. 7% and 6%, respectively for CMS/CMC with rice husk filler when compared to the neat system). Moreover the mechanical properties, i.e. Young's modulus and tensile strength increased. The chemical composition and size of natural fillers are essential factors determining the physicochemical properties of obtained composites, and cereal husks are promising raw materials for filling hydrophilic polysaccharide matrix.

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“…Similar trend, i.e. enhanced mechanical properties with plant bers addition was observed for thermoplastic starch based system containing walnut [30] or banana leaf bers [35].…”

Section: Cms/cmc Composite Lms With Plant Llerssupporting

confidence: 77%

Section: Cms/cmc Composite Lms With Plant Llersmentioning

confidence: 99%

Section: Cms/cmc Composite Lms With Plant Llersmentioning

confidence: 99%

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Effect of Grain Husk Microfibers on Physicochemical Properties of Carboxymethyl Polysaccharides-based Composite

Wilpiszewska

Antosik

2021

Preprint

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“…Native starch is a renewable natural resource, which can be extracted from different parts of the plants, such as seeds, fruits, leaves, tubers, and roots. It may come from a variety of vegetables and greens [56], including potato [34,46,[59][60][61][62][63][64], cassava [65][66][67][68][69][70][71], maize [28,38,[72][73][74][75][76], wheat [58], pea [5,45,[77][78][79][80], tapioca [2,81,82], corn [33,35,36,43,47,48,[83][84][85][86][87][88][89], pomegranate [90], sweet potato [53], and avocado [91]…”

Section: Thermoplastic Starchmentioning

confidence: 99%

Green Nanocomposites Based on Thermoplastic Starch: A Review

et al. 2021

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The development of bio-based materials has been a consequence of the environmental awareness generated over time. The versatility of native starch is a promising starting point for manufacturing environmentally friendly materials. This work aims to compile information on the advancements in research on thermoplastic starch (TPS) nanocomposites after the addition of mainly these four nanofillers: natural montmorillonite (MMT), organically modified montmorillonite (O-MMT), cellulose nanocrystals (CNC), and cellulose nanofibers (CNF). The analyzed properties of nanocomposites were mechanical, barrier, optical, and degradability. The most important results were that as the nanofiller increases, the TPS modulus and strength increase; however, the elongation decreases. Furthermore, the barrier properties indicate that that the incorporation of nanofillers confers superior hydrophobicity. However, the optical properties (transparency and luminosity) are mostly reduced, and the color variation is more evident with the addition of these fillers. The biodegradability rate increases with these nanocompounds, as demonstrated by the study of the method of burial in the soil. The results of this compilation show that the compatibility, proper dispersion, and distribution of nanofiller through the TPS matrix are critical factors in overcoming the limitations of starch when extending the applications of these biomaterials. TPS nanocomposites are materials with great potential for improvement. Exploring new sources of starch and natural nano-reinforcement could lead to a genuinely eco-friendly material that can replace traditional polymers in applications such as packaging.

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“…In addition to these papers, the mechanical properties of Epoxy/WS composites were reported in some papers [21,22]. Sasari et al [23] evaluated the effect of WS on the tensile property of the Starch/WSP composite. Liu [24] investigated the effect of WS and KH550 on the properties of PLA/WS composite.…”

Section: Introductionmentioning

confidence: 99%

Fused Deposition Modeling of Poly (Lactic Acid)/Walnut Shell Biocomposite Filaments—Surface Treatment and Properties

Song

Yang

et al. 2019

Applied Sciences

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This paper presents the study of the properties of objects that were fabricated with fused deposition modeling technology while using Poly (lactic acid)/Walnut shell powder (PLA/WSP) biocomposite filaments. The WSP was treated while using NaOH followed by silane. The infrared spectrum of treated and untreated WSP was characterized. The result was that thermal and mechanical properties could be improved by adjusting the concentration of silane. The experimental results showed: the surface compatibility between WSP and PLA was dramatically improved through treatment with KH550. The crystalline, thermal gravity, and thermal degradation temperatures of biocomposite with untreated WSP were improved from 1.46%, 60.3 °C, and 239.87 °C to 2.84%, 61.3 °C, and 276.37 °C for the biocomposites with treated WSP, respectively. The tensile, flexural, and compressive strengths of biocomposites were raised each by 8.07%, 14.66%, and 23.32%. With the determined silane concentration, PLA/10–15 wt.% treated WSP biocomposites were processed and tested. The results showed that the tensile strength was improved to 56.2 MPa, which is very near to that of pure PLA. Finally, the porous scaffolds with controllable porosity and pore size were manufactured.

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Physical and Mechanical Properties of Walnut Shell Flour-Filled Thermoplastic Starch Composites

Cited by 18 publications

References 38 publications

Effect of Grain Husk Microfibers on Physicochemical Properties of Carboxymethyl Polysaccharides-based Composite

Effect of Grain Husk Microfibers on Physicochemical Properties of Carboxymethyl Polysaccharides-based Composite

Green Nanocomposites Based on Thermoplastic Starch: A Review

Fused Deposition Modeling of Poly (Lactic Acid)/Walnut Shell Biocomposite Filaments—Surface Treatment and Properties

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