Thermoplastic starch composite with oil palm mesocarp fiber waste and its application as biodegradable seeding pot

Saepoo, Thonyaporn; Sarak, Sukanya; Mayakun, Jaruwan; Eksomtramage, T.; Kaewtatip, Kaewta

doi:10.1016/j.carbpol.2022.120221

Cited by 15 publications

(13 citation statements)

References 31 publications

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“…A soil burial test, described in our previous work, 20 was used to investigate the appearance of foam samples containing 0, 1, 3, 5, and 7 wt% loadings of KF‐1h. All samples measured 30 mm × 30 mm × 4 mm and were dried in a hot air oven at 105°C for 1 h before being buried in natural soil at a depth of 5 cm.…”

Section: Methodsmentioning

confidence: 99%

Preparation and characterization of biodegradable starch foam composite with treated Khlum fiber for food packaging

Kaewtatip

Saepoo

Sarak

et al. 2023

J of Applied Polymer Sci

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Starch foam is a completely biodegradable material that can replace petroleum‐based foams. However, starch foams are sensitive to water and have poor mechanical properties. Khlum fiber that had been alkali‐treated for 1 h (KF‐1h) showed excellent properties as a reinforcement of starch foam. KF‐1h was added to starch at loadings of 0, 1, 3, 5, and 7 wt%. The starch foam composite reinforced with 1 wt% of KF‐1h presented uniformly distributed cells of uniform size, and produced the highest values for flexural stress at maximum load (3.43 MPa), hardness (92.50), and water contact angle (122°) of the studied foams. The modulus of the starch foam composite increased with increments of KF‐1h content but the density and color of the starch foam and the biodegradation process in soil were only slightly affected. This work also demonstrated a practical application of the proposed starch foam composite as a biodegradable food container.

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Section: Methodsmentioning

confidence: 99%

Preparation and characterization of biodegradable starch foam composite with treated Khlum fiber for food packaging

Kaewtatip

Saepoo

Sarak

et al. 2023

J of Applied Polymer Sci

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“…In agriculture, tubes are containers used for producing plant seedlings, which are extremely important due to their functionalities that improve the production method with better quality and lower cost. During the germination process and the beginning of the development of young seedlings, extreme care must be taken for the healthy growth of the vegetables; therefore, they are placed in nurseries or agricultural greenhouses that have controlled environmental conditions, avoiding bad weather, pests, and diseases, in addition to enabling culture to develop in a uniform and dense manner 74 …”

Section: Resultsmentioning

confidence: 99%

“…During the germination process and the beginning of the development of young seedlings, extreme care must be taken for the healthy growth of the vegetables; therefore, they are placed in nurseries or agricultural greenhouses that have controlled environmental conditions, avoiding bad weather, pests, and diseases, in addition to enabling culture to develop in a uniform and dense manner. 74 Images of tube prototypes made by 3D printing with the produced filaments and an optical cross-section micrograph are shown in Figure 9. For all filament compositions, in addition to the specimens manufactured for mechanical testing, tube prototypes with commercial dimensional standards were printed.…”

Section: Filament Printabilitymentioning

confidence: 99%

Development of biodegradable filaments based on agro‐industrial waste and evaluation of process parameters in final properties

da Silva Fortes,

de Abreu,

de Sousa Nascimento Junior

et al. 2023

Polymer Composites

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Additive manufacturing, which has become popular in recent years, is the process of joining materials through the deposition of layers to form parts based on data from a 3D model and fused deposition modeling. The search for biodegradable materials for the production of filaments for 3D printing is increasing and opening up possibilities for the development of new sustainable products, including the use of lignocellulosic waste in the formulation. Therefore, the present work aims to develop polymeric filaments based on polybutylene adipate terephthalate and low content (2.5 and 5 wt%) of peanut and soybean shells and evaluate their potential for 3D printing. The charges were characterized in terms of chemical composition. Tensile and dimensional variation tests were performed on samples manufactured from two different filling orientations: −45/45° and 0/90°. The printability of the filament was based on the manufacture of prototypes of agricultural tubes that were also characterized by thermogravimetry and their morphology through scanning electron and optical microscopy. Both natural residues significantly (p < 0.05) affected the sample dimensions and mechanical properties. However, the filling orientation difference was insignificant (p > 0.05). The filaments produced showed good processability, thermal and dimensional stability. The samples produced showed a satisfactory surface finish without exposing load agglomerates. These results demonstrate the feasibility of using lignocellulosic fillers, such as peanut and soybean shells, in additive manufacturing and indicate the possibility of producing parts with varied geometries.Highlights Use of lignocellulosic residues in biodegradable filaments. The filament produced with fillers of peanut and soybean shells showed good processability. Filament fracture depends on the raster angle. It was possible to produce tubes with good surface quality and mechanical properties.

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“…where X (0) is the new series data generated from non-negative raw data and X (1) is the Accumulative Generating Operation (AGO) series data generated by accumulating the raw date once, which can be obtained by formula 7:…”

Section: Scanning Electron Microscopy (Sem)mentioning

confidence: 99%

“…In recent years, compared to the pots made up of petroleum-based or ceramic materials, seedling pots prepared from natural fiber have received more significant attention due to their biodegradation. Converting straw fiber into biodegradable seedling pots is an efficient agricultural waste management strategy, which can reduce the atmospheric and soil pollution resulting from straw burning or direct incorporation into fields. − Moreover, they can increase the survival rate of crops by avoiding root damage since the plants do not have to be removed from the pots before planting . However, some disadvantages such as low wet strength, poor water resistance and the resulting difficulty in transportation limit the wide application of straw fiber pots. − …”

Section: Introductionmentioning

confidence: 99%

Enhanced Interphase Adhesion from Bio-pretreated Straw Fiber in Biodegradable Composite Pot: In-Depth Investigation of Degradation Interphase Behavior

Du,

Guan,

Yong

et al. 2023

ACS Sustainable Resour. Manage.

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Biodegradability of fiber-based bio-pot is not only determined by the properties of individual fiber and resin components but also significantly influenced by the behavior of the fiber−resin interphase. Herein, we fabricated bio-pots by utilizing bio-pretreated straw fiber and keratin-modified resin and clarified the interphase degradation mechanism by fiber and composite pot characterization, respectively. The bio-pots exhibited enhanced mechanical properties and hydrophobicity due to improved interfacial adhesion. However, the pretreatment reduced the hemicellulose content in the fibers from 30.06% to 15.84%, resulting in a decrease in the biodegradation rate of bio-pot. Scanning electron microscope and nano-indentation results elucidated that the reinforcing effect of resin on pretreated fibers diminished the interphase's susceptibility to moisture and soil microbials, leading to decreased mechanical loss during natural degradation (e.g., from degradation rate 44.0% for blank samples to 37.4% for 10 day pretreated fiber-based pots at the modulus). The significance of the results may improve bio-pot environmental sustainability and predict its life cycle through interphase degradation. Additionally, the results demonstrate the great future potential on recycling of waste natural fiber and development of composite bio-pot with controllable biodegradability.

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Thermoplastic starch composite with oil palm mesocarp fiber waste and its application as biodegradable seeding pot

Cited by 15 publications

References 31 publications

Preparation and characterization of biodegradable starch foam composite with treated Khlum fiber for food packaging

Preparation and characterization of biodegradable starch foam composite with treated Khlum fiber for food packaging

Development of biodegradable filaments based on agro‐industrial waste and evaluation of process parameters in final properties

Enhanced Interphase Adhesion from Bio-pretreated Straw Fiber in Biodegradable Composite Pot: In-Depth Investigation of Degradation Interphase Behavior

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