Effect of glycerin on mechanical properties of a hybrid kenaf-jute polyester composite

H, Maruthi Prashanth B; Gouda, P.S. Shivakumar; Manjunatha, T S; Navneeth, I M; Chethan, K M

doi:10.1088/2631-8695/acd2a7

Cited by 2 publications

(1 citation statement)

References 34 publications

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“…It could be due to the fact that starch had a greater effect than nanocellulose, because it was dissolved at room temperature and was a "reinforcing agent" more than a polymer film matrix. It is also worth noting that the introduction of glycerol (0.5 mL) into the F3 film not only prevented the film shrinking, but led to an improvement in its mechanical properties and flexibility (5.642 MPa and 4.620 mm for the F3 gl film) [73]. Glycerol may reduce the intramolecular affinity between the polysaccharide chains by hydrogen bonding with them.…”

Section: Film Physicochemical Properties Investigationmentioning

confidence: 99%

Edible Carrageenan Films Reinforced with Starch and Nanocellulose: Development and Characterization

Dmitrenko,

Kuzminova,

Cherian

et al. 2023

Sustainability

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Currently, from the sustainable development point of view, edible films are used as potential substitutes for plastics in food packaging, but their properties still have limitations and require further improvement. In this work, novel edible carrageenan films reinforced with starch granules and nanocellulose were developed and investigated for application as a bio-based food packaging system. The nanocellulose was used to improve film mechanical properties. Aloe vera gel was incorporated for antibacterial properties. Glycerol and sesame oil were added as plasticizers into the nanocomposite film to improve flexibility and moisture resistance. The interactions between charged polysaccharide functional groups were confirmed by FTIR spectroscopy. The migration of starch particles on the upper film surface resulting in increased surface roughness was demonstrated by scanning electron and atomic force microscopy methods. Thermogravimetric analysis showed that all films were stable up to 200 °C. The increase in nanocellulose content in films offered improved mechanical properties and surface hydrophilicity (confirmed by measurements of contact angle and mechanical properties). The film with a carrageenan/starch ratio of 1.5:1, 2.5 mL of nanocellulose and 0.5 mL of glycerol was chosen as the optimal. It demonstrated water vapor permeability of 6.4 × 10−10 g/(s m Pa), oil permeability of 2%, water solubility of 42%, and moisture absorption of 29%. This film is promising as a biodegradable edible food packaging material for fruits and vegetables to avoid plastic.

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Section: Film Physicochemical Properties Investigationmentioning

confidence: 99%

Edible Carrageenan Films Reinforced with Starch and Nanocellulose: Development and Characterization

Dmitrenko,

Kuzminova,

Cherian

et al. 2023

Sustainability

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The impact of ecological aging on the mechanical performance of jute-banana fibre phenol-formaldehyde hybrid composites

B H,

Gowda,

Dutt

et al. 2024

Mater. Res. Express

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Natural fiber composites are an ecologically beneficial and sustainable alternative to conventional materials, lowering their environmental impact. Aging tests are essential for assessing natural fiber composites' long-term mechanical performance and durability in various environments to ensure their reliability and safety over time. The ecological aging behavior of jutarebanana fiber phenol-formaldehyde (JBP-F) hybrid composites with varying phenol-formaldehyde (PF) weight percentages ranging from 40% to 70% is investigated in this study. The moisture resistance, accelerated water resistance, thermal and hydrothermal aging, soil burial, and accelerated weathering have all been tested on these composites. The degree of deterioration was determined by analyzing changes in the hybrid fiber composite's weight and tensile properties. In moisture resistance and soil burial tests, the composite with 70% PF and 30% fibers by weight exhibited the least weight gain and the least weight loss. According to the experimental results, a composite containing equal quantities of fiber and resin (50% jute-banana fiber and 50% PF) (JBP-F50) showed strong fiber-matrix interaction and was suitable for outdoor applications. This composite experienced minimal weight gain in moisture durability and accelerated water resistance tests, and it exhibited weight loss in thermal aging, hydrothermal aging, soil burial, and accelerated weathering tests. Additionally, it consistently showed higher tensile strength compared to the other composites. (60% jute- banana fiber and 40% PF). The JBP-F60 composite, on the other hand, demonstrated high modulus values in all aging tests except the thermal aging test.

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Effect of glycerin on mechanical properties of a hybrid kenaf-jute polyester composite

Cited by 2 publications

References 34 publications

Edible Carrageenan Films Reinforced with Starch and Nanocellulose: Development and Characterization

Edible Carrageenan Films Reinforced with Starch and Nanocellulose: Development and Characterization

The impact of ecological aging on the mechanical performance of jute-banana fibre phenol-formaldehyde hybrid composites

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