Polylactic acid/graphene nanocomposite consolidated by SPS technique

Adesina, O. T.; Sadiku, Emmanuel Rotimi; Jamiru, Tamba; Adesina, Olanrewaju Seun; Ogunbiyi, Olugbenga; Obadele, Babatunde Abiodun; Salifu, Smith

doi:10.1016/j.jmrt.2020.08.064

Cited by 14 publications

(4 citation statements)

References 47 publications

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“…It also impart high resistance towards micro cracking, dimensional stability and biological performance to PLA composites. [361][362][363] The large surface areas of GBNPs substantially reform different functional groups allowing load to distrube uniformly inside the matrix. 364 The size, shape and homogenous dispersion of these GBNPs inside the matrix leads to strong interfacial adhesion at the interface area.…”

Section: Graphene-based Nanoparticles (Gbnps)mentioning

confidence: 99%

“…GBNPs like graphene oxide (GO) provide superior mechanical, thermal and electrical properties. It also impart high resistance towards micro cracking, dimensional stability and biological performance to PLA composites 361‐363 . The large surface areas of GBNPs substantially reform different functional groups allowing load to distrube uniformly inside the matrix 364 .…”

Section: Nano Particles (Nps)mentioning

confidence: 99%

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A review on polylactic acid‐based blends/composites and the role of compatibilizers in biomedical engineering applications

Srivastava,

Bhati,

Singh

et al. 2024

Polymer Engineering & Sci

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Poly(lactic acid) (PLA) is one of the most promising biopolymers extensively used in food, packaging, medical and pharmaceutical industries. It is due to favorable physicochemical properties, in‐situ hydrolytic degradation and well‐established processing parameters. However, in medical engineering applications, PLA shows some drawbacks like low cell adhesion, biological inertness, slow degradation rate and high acid inflammation. These shortcomings of pure PLA could be addressed by blending it with other bioresorbable materials and compatibilizers. This review provides comprehensive information on different PLA composites in the field of tissue engineering, implants, injury management and drug delivery systems. The PLA‐based composites are divided into four parts: PLA/polymer, PLA/metal, PLA/ceramic, and PLA/nanoparticles. It also investigates various synthesis process, role of different compatibilizers, in vitro studies and their in vivo applications.Highlights Review the trends of bioresorbable PLA blends/composites. Extensively focused on PLA blend with polymer, metal, ceramic, and nanoparticles. Role of reinforcement and compatibilizer to overcome shortcomings of PLA implant. Highlights advantages, limitations, and properties of different types of PLA implants. Discuss various clinical applications and future of PLA blends/composite scaffolds.

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Section: Graphene-based Nanoparticles (Gbnps)mentioning

confidence: 99%

Section: Nano Particles (Nps)mentioning

confidence: 99%

A review on polylactic acid‐based blends/composites and the role of compatibilizers in biomedical engineering applications

Srivastava,

Bhati,

Singh

et al. 2024

Polymer Engineering & Sci

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“…Moreover, it satisfies the conditions for biocompatibility and biodegradability. However, the range of applications of PLA fibres is severely limited because of their low glass transition temperature [ 7 , 8 ], high brittleness, low toughness, slow crystallization rate, and low tensile elongation [ 9 , 10 ]. Additives, such as plasticizers, toughening agents, reinforcing fillers, and compatibilizers, have been found to widen the scope of applications of PLA by improving the necessary properties and crystallization rate [ 11 , 12 , 13 ].…”

Section: Introductionmentioning

confidence: 99%

Strength Characteristics of Electrospun Coconut Fibre Reinforced Polylactic Acid: Experimental and Representative Volume Element (RVE) Prediction

et al. 2022

Self Cite

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Environmental conservation and waste control have informed and encouraged the use of biodegradable polymeric materials over synthetic non-biodegradable materials. It has been recognized that nano-sized biodegradable materials possess relatively good properties as compared to conventional micron-sized materials. However, the strength characteristics of these materials are inferior to fossil-based non-biodegradable materials. In this study, biodegradable polylactide (PLA), reinforced with treated coconut husk particulates (CCP) for improved mechanical properties, was fabricated using an electrospinning process and representative volume element (RVE) technique, and some of the obtained mechanical properties were compared. It was observed that the electrospun CCP-PLA nanofibre composites show improved mechanical properties, and some of these mechanical properties using both techniques compared favourably well. The electrospun fibres demonstrate superior properties, mostly at 4 wt.% reinforcement. Thus, achieving good mechanical properties utilising agro waste as reinforcement in PLA to manufacture nanocomposite materials by electrospinning method is feasible and provides insight into the development of biodegradable nanocomposite materials.

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“…The mechanical properties of nanocomposites are exciting, since the nanoparticles highly improve the mechanical characteristics of polymer media and some factors such as dispersion, concentration and aspect ratio of nanofillers in addition to interfacial/interphase properties mainly control the mechanical performance. 7,[16][17][18][19][20][21][22] Among these factors, the interfacial communications and the efficacy of load moving from the medium to filler play the chief roles. A weak interphase induces the debonding during the stress loading, 23 which fails the sample, but a tough interphase produces a strong system.…”

Section: Introductionmentioning

confidence: 99%

The least length of halloysite nanotubes allowing the operative stress shifting via imperfect interphase after percolation onset for the strength of nanocomposites applicable in the biomedical products

Zare

Rhee

2022

Polymer Composites

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The strength of a composite comprising halloysite nanotubes (HNT) above percolation start is simulated supposing the imperfect interphase by "L c " as the least length of nanofiller authorizing the operative stress shifting via interphase. The advanced model considers the interphase depth, percolation start, network fraction and interfacial shear strength (τ) along with the strengths and concentrations of the dispersed and networked HNT and interphase. All factors are justified by parametric checkups and the model's calculations are linked to the numerous tested data of various samples. L c = 500 nm maximizes the nanocomposite's strength by 80%, but the highest "L c " of 1500 nm only improves the strength of system by 28%. The percolation start of 0.001 causes the maximum improvement of the nanocomposite's strength as 56%. The strength of samples rises by 86% at maximum "τ" of 100 MPa. Also, the strength of system progresses by 70% at the interphase deepness of 20 nm. Thus, "L c " and percolation start adversely control the strength, but "τ" and interphase depth directly handle the system's strength. The model's calculations suitably follow the experimental strengths of numerous examples approving the advanced model. HNT-based nanocomposites can be used in the biomedical products.

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Polylactic acid/graphene nanocomposite consolidated by SPS technique

Cited by 14 publications

References 47 publications

A review on polylactic acid‐based blends/composites and the role of compatibilizers in biomedical engineering applications

A review on polylactic acid‐based blends/composites and the role of compatibilizers in biomedical engineering applications

Strength Characteristics of Electrospun Coconut Fibre Reinforced Polylactic Acid: Experimental and Representative Volume Element (RVE) Prediction

The least length of halloysite nanotubes allowing the operative stress shifting via imperfect interphase after percolation onset for the strength of nanocomposites applicable in the biomedical products

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