Manufacture and characterisation of thermoplastic composites made from PLA/hemp co-wrapped hybrid yarn prepregs

Baghaei, Behnaz; Skrifvars, Mikael; Berglin, Lena

doi:10.1016/j.compositesa.2013.03.012

Cited by 126 publications

(68 citation statements)

References 36 publications

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“…mentioned that this lower decrease is directly associated with the reinforcing effect of the fibers, which have higher stiffness. Also, increases in storage modulus can be related to an effective stress transfer from the fiber to the matrix (good fiber–matrix adhesion) . Figure shows that the dynamic modulus was even more improved by annealing.…”

Section: Resultsmentioning

confidence: 95%

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Effect of thermal annealing on the mechanical and thermal properties of polylactic acid–cellulosic fiber biocomposites

Pérez‐Fonseca

Robledo‐Ortíz

González‐Núñez³

et al. 2016

J of Applied Polymer Sci

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Polylactic acid (PLA) biocomposites were produced by a combination of extrusion and injection molding with three cellulosic reinforcements (agave, coir, and pine) and contents (10, 20, and 30%). In particular, some samples were subjected to thermal annealing (105 8C for 1 h) to modify the crystallinity of the materials. In all cases, morphological (scanning electron microscopy) and thermal (differential scanning calorimetry, dynamical mechanical thermal analysis) characterizations were related to the mechanical properties (Charpy impact, tensile and flexural tests). The results showed that annealing increased the crystallinity for all the materials produced, but different mechanical behaviors were observed depending on fiber type and content. For example, annealing increased the impact strength and flexural modulus of PLA and PLA biocomposites (agave, coir, and pine), while decreasing their flexural strength. But the main conclusion is that fiber addition combined with thermal annealing can substantially increase the thermal stability of the studied materials.

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Section: Resultsmentioning

confidence: 95%

“…These characteristics were very similar for the three types of fibers. PLA is a polymer with polar oxygen atoms, which could form hydrogen bonds with the hydroxyl groups of the cellulosic fibers . As a consequence, PLA–fiber interactions are expected to be much better than most polymers, which are generally hydrophobic (nonpolar).…”

Section: Resultsmentioning

confidence: 99%

Effect of thermal annealing on the mechanical and thermal properties of polylactic acid–cellulosic fiber biocomposites

Pérez‐Fonseca

Robledo‐Ortíz

González‐Núñez³

et al. 2016

J of Applied Polymer Sci

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“…Recently, there is a growing interest in natural fiber‐based composites in response to the consumer's demands for lighter‐weight, carbon sequestering, and more sustainable materials and ecological concerns such as environmental safety and recyclability . Bamboo as sustainable resource, abundantly available and biodegradable is widely used in producing composites due to its rapid growth, good flexibility, and short production period .…”

Section: Introductionmentioning

confidence: 99%

The reinforcing mechanism of mechanical properties of bamboo fiber bundle‐reinforced composites

Huang

Zhang

et al. 2018

Polymer Composites

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In this study, bamboo fiber bundle‐reinforced composites (BFCs) were prepared from Neosinocalamus affinis and phenol‐formaldehyde resins. The strength and modulus of BFC were more than double those of the raw bamboo. By using micro computed tomography, scanning electron microscopy and nanoindentation tests, the reinforcement mechanism of the bamboo‐based composites was investigated. And the details were summarized as follows. As the strongest parts of bamboo, the mechanical properties of the fiber cells were almost unchanged but their relative amounts increased due to the densification, thereby improving the carrying capacity. The ground tissues, the weakest parts of bamboo, had a substantial improvement in their mechanical properties. Due to elaborative fluffing process and high pressure forming, the intercellular space and cell cavity were filled with resins. The resins bonded the ingredients together so that the weak intercellular layers were enhanced. POLYM. COMPOS., 40:1463–1472, 2019. © 2018 Society of Plastics Engineers

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“…Poly(lactic acid) [17][18][19][20], poly(lactic-co-glycolic acid) [21,22] and polyhydroxyalkanoates [23][24][25] are commonly used as a matrices.…”

Section: Introductionmentioning

confidence: 99%

Selected biotrends in development of epoxy resins and their composites

Datta

Włoch

2014

Polym. Bull.

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Epoxy resins and their fibre or particulate composites are widely used in various industries, including building, naval, aircraft, automotive and aerospace. Modern polymer science and technology focus on the development of green polymers and composites. There are two major areas of interest in the case of epoxy resins: the development of bio-based resins and the production of composites with natural fibres. One of the most interesting challenges is developing fully bio-based composites: that is, epoxy resins based on renewable resources and natural fibres. This paper presents a review of literature on epoxy resins and hardeners based on renewable resources (especially vegetable oils) and epoxy composites with natural fibres. We also describe some of the effective methods of improving the mechanical properties of epoxy-natural fibres composites, including chemical modification of the fibre surface and the application of hybrid reinforcements.

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Manufacture and characterisation of thermoplastic composites made from PLA/hemp co-wrapped hybrid yarn prepregs

Cited by 126 publications

References 36 publications

Effect of thermal annealing on the mechanical and thermal properties of polylactic acid–cellulosic fiber biocomposites

Effect of thermal annealing on the mechanical and thermal properties of polylactic acid–cellulosic fiber biocomposites

The reinforcing mechanism of mechanical properties of bamboo fiber bundle‐reinforced composites

Selected biotrends in development of epoxy resins and their composites

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