Physicochemical Study of Eco-Friendly Sugar Palm Fiber Thermoplastic Polyurethane Composites

Mohammed, A. A.; Bachtiar, Dandi; Siregar, J. P.; Rejab, M. R. M.; Hasany, S. F.

doi:10.15376/biores.11.4.9438-9454

Cited by 16 publications

(12 citation statements)

References 25 publications

(28 reference statements)

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“…The short RJF and PJF did not induce crystallization behavior of the ASKLTPU matrix, so the thermal transition related to crystallization behavior did not occur in the DSC curve. The similar results were also obtained at many kinds of polyurethane with an inherent amorphous nature including castor oil-based PU [83] and polyester-type TPU [84], although induced hard phase crystallization of TPU via cellulose nanocrystals also occurred in other study [45].…”

Section: Resultssupporting

confidence: 78%

Effect of Low-Temperature Pyrolysis on the Properties of Jute Fiber-Reinforced Acetylated Softwood Kraft Lignin-Based Thermoplastic Polyurethane

et al. 2018

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Short jute fiber-reinforced acetylated lignin-based thermoplastic polyurethane (JF reinforced ASKLTPU) was prepared and characterized as a short-fiber-reinforced elastomer with carbon-neutrality and biodegradability. The acetylated softwood kraft lignin-based thermoplastic polyurethane (ASKLTPU) was prepared with polyethylene glycol (PEG) as a soft segment. Short jute fiber was modified using low-temperature pyrolysis up to the temperatures of 200, 250, and 300 °C in order to remove non-cellulosic compounds of jute fibers for enhancing interfacial bonding and reducing hydrophilicity with the ASKLTPU matrix. JF-reinforced ASKLTPUs with fiber content from 5 to 30 wt % were prepared using a melt mixing method followed by hot-press molding at 160 °C. The JF-reinforced ASKLTPUs were characterized for their mechanical properties, dynamic mechanical properties, thermal transition behavior, thermal stability, water absorption, and fungal degradability. The increased interfacial bonding between JF and ASKLTPU using low-temperature pyrolysis was observed using scanning electron microscopy (SEM) and also proved via interfacial shear strength measured using a single-fiber pull-out test. The mechanical properties, thermal properties, and water absorption aspects of JF-reinforced ASKLTPU were affected by increased interfacial bonding and reduced hydrophilicity from low-temperature pyrolysis. In the case of the degradation test, the PEG component of ASKLPTU matrix highly affects degradation and deterioration.

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Section: Resultssupporting

confidence: 78%

Effect of Low-Temperature Pyrolysis on the Properties of Jute Fiber-Reinforced Acetylated Softwood Kraft Lignin-Based Thermoplastic Polyurethane

et al. 2018

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“…The effect of artificial saliva and rapid changes on the surface of the material was tested using the SEM microscope for the optimal silver amalgam / PVA mix, as shown in Figure -7 (a, b, c, d, e and f). One of the results obtained was that the solutions based on artificial saliva solution had corrosion effects due to the presence of chloride ions, as well as the effect of the change in acid function (8,7,6). The presence of chloride ions in the saliva solution stimulates and causes corrosion.…”

Section: Resultsmentioning

confidence: 99%

“…Polyvinyl alcohol gels (PVOH) are applied as articular repairing materials due to the high adhesion, durability performance [4] and porous free water group's structures [5]. However, nano-structure gels are used in medical applications due to their bioactive properties [6] as interfacial bonding agents for natural tissue to help improve the strong bonding and mechanical contact between the base material and natural fibre [7]. Nano hydroxyapatite-reinforced polyvinyl alcohol (nano-HA/PVA) gel composites were set by mixing nano-HA particles reformed by a silicon combination agent with physical saline solution (PSS) of PVA while approving the freezing-thawing method.…”

Section: Introductionmentioning

confidence: 99%

A New Micro-composite Material of Micro-particle Amalgam/Polyvinyl Alcohol for Teething Structures

Abas

Abass

2019

eijs

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Dental amalgam is a mixture of approximately 50% mercury and varying ratios of silver, tin, zinc, and copper. Dental amalgam is a major source of mercury pollution because it is readily absorbed through 90-100% vapour and the oral mucosa. In addition, in certain situations with the oral environment, various types of metallic orthodontic brackets are highly aggressive and can lead to corrosion. However, polyvinyl alcohol (PVA) material has no cytogenetic effects on human health or the environment and is therefore applied in the manufacturing of the new composite material. Different additives from the bonding agent (PVA; 2.4, 4.8, and 7.2 g) dissolved in about 10 ml of water, heated on a hot plate under a high-temperature heat treatment (150-200 á´¼C), and continuously stirred for about 20 minutes, until all the PVA dissolved or the solution became colorless. Subsequently, a fixed amount of powdered amalgam (2.4g) added after the mercury content was separated. It was continuously mixed until it reached a homogenous solution, then molded and cured to give the final product. New samples were used for the following purposes: (1) to investigate their effects on the chemical, thermal and mechanical properties of the composite samples, (2) composite scanning and images from the EDS diffraction. Scanning lectron microscopy (SEM) indicated that the presence of the methyl group (CHI) that lowers the crystallinity of PVA, also forms bridges between the different chains obtained to indicate the suitable materials for guided dental applications.

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“…The compounds were obtained by extrusion through LABTECH-LTE 20-40 twin-screw extruder, and the specimens were fabricated Engel e-Max 440/100 IM machine to conduct the mechanical tests. Mohammed et al (2016) characterized the physicochemical properties of sugar palm-based biocomposites. Thermoplastic polyurethane was considered a matrix in their study, whereas the operating parameters were speed, fiber sizes, and temperatures.…”

Section: Coir Fiber Basedmentioning

confidence: 99%

Injection-molded natural fiber-reinforced polymer composites–a review

Rabbi

Islam

2021

Int J Mech Mater Eng

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For the last couple of decades, researchers have been trying to explore eco-friendly materials which would significantly reduce the dependency on synthetic fibers and their composites. Natural fiber-based composites possess several excellent properties. They are biodegradable, non-abrasive, low cost, and lower density, which led to the growing interest in using these materials in industrial applications. However, the properties of composite materials depend on the chemical treatment of the fiber, matrix combination, and fabrication process. This study gives a bibliographic review on bio-composites specially fabricated by the injection-molding method. Technical information of injection-molded natural fiber reinforcement-based composites, especially their type and compounding process prior to molding, are discussed. A wide variety of injection-molding machines was used by the researchers for the composite manufacturing. Injection-molded composites contain natural fiber, including hemp, jute, sisal, flax, abaca, rice husk, kenaf, bamboo, and some miscellaneous kinds of fibers, are considered in this study.

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Physicochemical Study of Eco-Friendly Sugar Palm Fiber Thermoplastic Polyurethane Composites

Cited by 16 publications

References 25 publications

Effect of Low-Temperature Pyrolysis on the Properties of Jute Fiber-Reinforced Acetylated Softwood Kraft Lignin-Based Thermoplastic Polyurethane

Effect of Low-Temperature Pyrolysis on the Properties of Jute Fiber-Reinforced Acetylated Softwood Kraft Lignin-Based Thermoplastic Polyurethane

A New Micro-composite Material of Micro-particle Amalgam/Polyvinyl Alcohol for Teething Structures

Injection-molded natural fiber-reinforced polymer composites–a review

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