Preparation and characterization of uniaxial poly(lactic acid)-based self-reinforced composites

Gao, Chengcheng; Meng, Linghan; Simon, George P.; Liu, Hongsheng; Chen, Ling; Petinakis, Steven

doi:10.1016/j.compscitech.2015.07.006

Cited by 34 publications

(16 citation statements)

References 24 publications

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“…However, a recent study demonstrated the possibility of reinforcing an amorphous solution cast PDLLA film with PLLA fibers retaining their architecture. In addition, a 2-fold improvement in the tensile modulus (1.40 vs 0.79 GPA for non-reinforced), and a 3-fold improvement in tensile strength (50 MPa vs 16 MPa) was realized by the authors, thus demonstrating the significance of these PLA fibers in composites for orthopaedic applications [38]. These studies indicate, by judicious selection of matrix/fiber and morphology of the fiber phase, SR-PLLAs can be fabricated using wide array of techniques increasing the application of these devices for orthopaedic applications that require significantly higher modulus and strength.…”

Section: Processingmentioning

confidence: 95%

Poly (lactic acid)-based biomaterials for orthopaedic regenerative engineering

Narayanan

Vernekar

Kuyinu

et al. 2016

Advanced Drug Delivery Reviews

388

240

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Regenerative engineering converges tissue engineering, advanced materials science, stem cell science, and developmental biology to regenerate complex tissues such as whole limbs. Regenerative engineering scaffolds provide mechanical support and nanoscale control over architecture, topography, and biochemical cues to influence cellular outcome. In this regard, poly (lactic acid) (PLA)-based biomaterials may be considered as a gold standard for many orthopaedic regenerative engineering applications because of their versatility in fabrication, biodegradability, and compatibility with biomolecules and cells. Here we discuss recent developments in PLA-based biomaterials with respect to processability and current applications in the clinical and research settings for bone, ligament, meniscus, and cartilage regeneration.

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Section: Processingmentioning

confidence: 95%

Poly (lactic acid)-based biomaterials for orthopaedic regenerative engineering

Narayanan

Vernekar

Kuyinu

et al. 2016

Advanced Drug Delivery Reviews

388

240

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“…Thus, unlike more conventional composites, an SRP is much easier to recycle [1]. If the morphology differs between the reinforcement (fibrillar microstructure due to the drawing process) and the matrix (spheroidal morphology), the chemical structures are close and therefore a strong chemical adhesion is possible between the fibers and the matrix [5,6]. This structural homogeneity then has no impact on biocompatibility and biodegradation, as no chemical agents are added to promote reinforcement or adhesion of the matrix [5].…”

Section: Introduction 1contextmentioning

confidence: 99%

A Review of the Mechanical and Physical Properties of Polyethylene Fibers

et al. 2021

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Since the 1970s and 1980s, a major effort has been made to study UHMWPE (Ultra-High Molecular Weight PolyEthylene) fibers with remarkable mechanical properties, based on a basic polymer such as PE (PolyEthylene). These performances are above all associated with a very strong alignment of the molecules and the microfibrillar structures formed using various processes. However, they vary greatly depending on many parameters, and particularly on the draw ratio. Thus, these characteristics have been extensively analyzed by dynamic, static tensile, and creep tests, and are predominantly viscoelastic. The behavior appears to be associated with physical considerations and with the characteristic orthorhombic-hexagonal solid phase transition. The presence of a hexagonal phase is detrimental to the behavior because the chains slide easily relative to each other. Shifting this transition to higher temperatures is a challenge and many factors influence it and the temperature at which it takes place, such as the application of stress or annealing. The objective here is to give an overview of what has been done so far to understand the behavior of UHMWPE yarns. This is important given future numerical modeling work on the dimensioning of structural parts in which these UHMWPE yarns will be reinforcements within composites.

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“…Self-reinforcement is a promising way to enhance mechanical, thermal, and other properties of thermoplastic polymers as well as provides several additional benefits, including ease of recycling, low density, good compatibility between reinforcement and matrix phases and it is potential to improve the impact resistance and toughness of a brittle polymer like PLA [8][9][10]. The concept of 'self-reinforced (SR) polymer', 'all-polymer', or 'single polymer' composites was initiated in the 1970's for polyethylene (PE) and has later been successfully extended to a range of other polymers, including PLA, PET, polypropylene (PP), poly(methyl methacrylate) (PMMA), liquid crystalline polymer (LCP), and cellulose [11].…”

Section: Introductionmentioning

confidence: 99%

“…Various technologies have been developed to create the self-reinforced polymer composites (SR-PC), starting from hot compaction to partial dissolution and chemical modification [11]. Many methods have also been used to improve the fabrication and properties of such composites, including cold drawing [8], film-stacking [8,9], filament winding [9,10], co-extrusion [11], and meltdrawing [12]. Currently, SR-PCs have already found a variety of markets and are used in automotive, construction, biomedical, consumer, and packaging applications.…”

Section: Introductionmentioning

confidence: 99%

Self-reinforced poly(lactic acid) nanocomposites with integrated bacterial cellulose and its surface modification

Somord

Suwantong

et al. 2018

Nanocomposites

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Bacterial cellulose (BC) nanofibers, with and without silane surface modification, were incorporated into self-reinforced poly(lactic acid) (SR-PLA) nanocomposites at 1 and 10 wt%. Disintegrated BC was combined with electrospun PLA fiber mats by film stacking and compression molding at 165 C for 40 sec to obtain SR-PLA/BC hybrid films. The effect of nanocellulose addition and its surface modification on the structure, morphology, and properties of the resulting composites were investigated. It was found that BC was a highly effective reinforcement for SR-PLA nanocomposites, providing a noticeable increase in the film's strength and modulus. Moreover, surface modification of BC was shown to further enhance the film performances due to an improved PLA/BC interfacial interaction. At an optimum BC content, these hybrid films also exhibited outstanding ductility and toughness. Water vapor barrier properties were also enhanced, especially when modified BC was integrated in the SR-PLA films.

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Preparation and characterization of uniaxial poly(lactic acid)-based self-reinforced composites

Cited by 34 publications

References 24 publications

Poly (lactic acid)-based biomaterials for orthopaedic regenerative engineering

Poly (lactic acid)-based biomaterials for orthopaedic regenerative engineering

A Review of the Mechanical and Physical Properties of Polyethylene Fibers

Self-reinforced poly(lactic acid) nanocomposites with integrated bacterial cellulose and its surface modification

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