Synthesis and characterization of cellulose-microfibril reinforced epoxy composite

Thammawichai, Warut; Poopakdee, Nathawat; Suwanchawalit, Cheewita; Suwatpipat, Kullatat

doi:10.1109/acdt.2015.7111607

Cited by 2 publications

(5 citation statements)

References 13 publications

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“…Typically, there are two kinds of reinforcement: synthetic [4][5][6][7][8] and natural [9][10][11]. The commonly used synthetic reinforcement is glass, carbon, aramid, etc., whereas the natural ones are natural fibers and cellulose from plants or animals.…”

Section: Introductionmentioning

confidence: 99%

“…Cellulose can be derived from plants or animals. The plant-based cellulose can be extracted from, e.g., coir [9] and eucalyptus [18] which exists in two crystalline forms, i.e., cellulose I and cellulose II [19]. Figure 1 shows the chemical structure of cellulose with the chemical formula [C6H10O5]n. They normally exist in the form of microfibril bundles enclosed by impurities, i.e., hemicellulose, lignin, pectin, wax, and other substances [4][5][6][7][8].…”

Section: Introductionmentioning

confidence: 99%

“…Figure 1 shows the chemical structure of cellulose with the chemical formula [C6H10O5]n. They normally exist in the form of microfibril bundles enclosed by impurities, i.e., hemicellulose, lignin, pectin, wax, and other substances [4][5][6][7][8]. Various kinds of chemical treatments [9,18,20] are required to remove those impurities.…”

Section: Introductionmentioning

confidence: 99%

“…In this work, we adjusted the CI of cellulose reinforcement by combining cellulose microfibrils (CMF) [9] extracted from coir and microcrystalline cellulose (MCC) [32,34,35] extracted from eucalyptus, which have different CI, in various mixing ratios. Then we investigated the effects of the CI on the mechanical properties of hybrid-cellulose epoxy composites.…”

Section: Introductionmentioning

confidence: 99%

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The effects of the crystallinity index of cellulose on the flexural properties of hybrid-cellulose epoxy composites

POOPAKDEE,

THAMMAWICHAI

2024

J Met Mater Miner

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This work investigated the effects of the crystallinity index (CI) of cellulose on the flexural properties of hybrid-cellulose epoxy composites. The CI was varied by combining cellulose microfibrils (CMF) and microcrystalline cellulose (MCC), extracted from coir and eucalyptus, respectively, in various mixing ratios. From the XRD analysis, it was shown that the CI values and the CMF/MCC content follow a parabolic-fitting pattern, reaching a maximum value of 82.06% for the CMF/MCC of 30/70. The composites with cellulose of different CI values were fabricated and the flexural properties were measured. The results showed that the flexural strength increased as the CI increased, reaching a maximum of 105.45 MPa for a CI value of 81.87%. However, the flexural modulus displayed a parabolic relationship with respect to the CI value, reaching a maximum of 3,015.53 MPa for a CI value of 81.45%. FTIR spectroscopy was used to study the correlation between the interfacial bonding via hydrogen bonding of hydroxyl groups in cellulose and epoxy, the CI value, and the flexural properties. It was suggested that the strength of the cellulose was an important factor for the flexural strength of the composite, whereas both cellulose strength and interfacial bonding were crucial for the enhancement of the flexural modulus.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

The effects of the crystallinity index of cellulose on the flexural properties of hybrid-cellulose epoxy composites

POOPAKDEE,

THAMMAWICHAI

2024

J Met Mater Miner

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“…Unlike its metal counterpart, the composite airframe does not corrode and suffers less from fatigue. Further, the properties of composites can be easily modified to fit any requirements for any applications by combining different materials in different volume fractions and altering their mutual arrangement in a variety of ways [2][3][4][5][6].…”

Section: Introductionmentioning

confidence: 99%

Improvement on cost-performance ratio of fiberglass/carbon fiber hybrid composite

Poopakdee

Thammawichai

2021

J Met Mater Miner

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Fiberglass composite (FG) is widely used as a metal substitute in general applications due to its corrosion and chemical resistance, relatively high strength, and low cost. Still, the FG is deficient in performance and relatively heavy for airframes. Carbon fiber composite (CF) is utilized instead as it has greater performance and lower weight. However, the CF is brittle and expensive. Thus, in this work, we combine FG and CF into two types of hybrid composites to achieve a cost-effective solution with greater or comparable mechanical properties to those of CF. The first one uses FG as core and CF as skins (SWFG). The second one uses CF as core and FG as skins (SWCF). Their mechanical properties and cost-performance ratios (CPR) are compared. The results show that the mechanical properties of the SWFG composite, especially the modulus of elasticity, are considerably improved over the FG and nearly match those of the CF. Also, the SWFG has better CPR regarding tensile properties and flexural modulus than the SWCF and the CF. The SWFG shows promising potential as an alternative to the CF due to its comparable performance and almost 40% lower cost than the CF.

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Synthesis and characterization of cellulose-microfibril reinforced epoxy composite

Cited by 2 publications

References 13 publications

The effects of the crystallinity index of cellulose on the flexural properties of hybrid-cellulose epoxy composites

The effects of the crystallinity index of cellulose on the flexural properties of hybrid-cellulose epoxy composites

Improvement on cost-performance ratio of fiberglass/carbon fiber hybrid composite

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