Design of hybrid PLA/PBS/POM composite based on In-Situ formation of interpenetrating fiber networks

Vozniak, Iurii; Zaïri, Fahmi; Hosseinnezhad, Ramin; Morawiec, J.; Gałęski, Andrzej

doi:10.1016/j.compositesa.2021.106667

Cited by 7 publications

(4 citation statements)

References 39 publications

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“…[ 3 ] A simple and efficient way to improve the toughness of PLA is blending it with tough polymers. The tough polymers include polycaprolactone (PCL), [ 4 ] thermoplastic polyurethane (TPU), [ 5 ] polybutylene succinate (PBS), [ 6 ] and polybutylene adipate terephthalate (PBAT), [ 7 ] etc.…”

Section: Introductionmentioning

confidence: 99%

Mechanical, thermal properties and shape memory behaviors of PLA/PCL/PLA‐g‐GMA blends

Chen

et al. 2023

Polymer Engineering & Sci

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To improve the toughness of polylactic acid (PLA), in this research, a tough polymer polycaprolactone (PCL) was combined with PLA to prepare blends, and a compatibilizer of glycidyl methacrylate grafted PLA (PLA‐g‐GMA) was produced to enhance the compatibility of PLA/PCL blend. Compared with PLA/PCL blend, the compatibilized blend exhibited a lower melting temperature and greater thermal stability. The tensile test indicates that the addition of compatibilizer greatly improved the toughness of the PLA/PCL blend. Particularly, the elongation at break of PLA/PCL blend with 6 wt% PLA‐g‐GMA increased to 370% and reached about 66 times of neat PLA. In addition, compatibilized blends have good shape memory performance. The research provides a simple and feasible method to overcome the brittleness of PLA, supplying a new strategy to modify PLA.

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Section: Introductionmentioning

confidence: 99%

Mechanical, thermal properties and shape memory behaviors of PLA/PCL/PLA‐g‐GMA blends

Chen

et al. 2023

Polymer Engineering & Sci

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Section: Introductionmentioning

confidence: 99%

“…9 Contributing to an effective energy dissipation mechanism under deformation, the interpenetrating network structure between the filler with high specific surface areas and the matrix can generate strong interfacial interactions and can transfer stresses efficiently, which is an effective way to improve the mechanical properties of dental composite resins. [10][11][12] Two-dimensional nanosheets are among the largest specific surface area nanomaterials. 13 Represented by graphene (GN) and GN derivatives, two-dimensional nanomaterials have received much attention in recent years.…”

Section: Introductionmentioning

confidence: 99%

BNN/TiO₂ nanocomposite system–modified dental flow resins and the mechanism of the enhancement of mechanical and antibacterial properties

et al. 2023

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“…For instance, in situ scanning electron microscopy (SEM) has shown that the initiation and growth rates of crazing in PLA-based composites are influenced by the morphology and concentration of the minor phase, as well as strain rate [18]. Experiments have provided high-resolution images of the deformation and fracture processes to register the change of plastic deformation from the heterogeneous to homogeneous intensive crazing [19]. In another study, Hobbs and Barham employed optical and electron microscopic techniques to analyze the craze morphology of PHB under different conditions, including fresh, aged, and annealed states.…”

Section: Introductionmentioning

confidence: 99%

Approaches to Control Crazing Deformation of PHA-Based Biopolymeric Blends

Hosseinnezhad,

Elumalai,

Vozniak

2023

Polymers

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The mechanical behavior of polymer materials is heavily influenced by a phenomenon known as crazing. Crazing is a precursor to damage and leads to the formation of cracks as it grows in both thickness and tip size. The current research employs an in situ SEM method to investigate the initiation and progression of crazing in all-biopolymeric blends based on Polyhydroxyalkanoates (PHAs). To this end, two chemically different grades of PHA, namely poly(hydroxybutyrate) (PHB) and poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBHV), were melt-blended with polybutyrate adipate terephthalate (PBAT). The obtained morphologies of blends, the droplet/fibrillar matrix, were highly influenced by the plasticity of the matrices as well as the content of the minor phase. Increasing the concentration of PBAT from 15 to 30 wt.% resulted in the brittle to ductile transition. It changed the mechanism of plastic deformation from single craze-cracking to homogeneous and heterogeneous intensified crazing for PHB and PHBHV matrices, respectively. Homogeneous tensile crazes formed perpendicularly to the draw direction at the initial stages of deformation, transformed into shear crazes characterized by oblique edge propagation for the PHBHV/PBAT blend. Such angled crazes suggested that the displacement might be caused by shear localized deformation. The crazes’ strength and the time to failure increased with the minor phase fibers. These fibers, aligned with the tensile direction and spanning the width of the crazes, were in the order of a few micrometers in diameter depending on the concentration. The network of fibrillar PBAT provided additional integrity for larger plastic deformation values. This study elucidates the mechanism of crazing in PHA blends and provides strategies for controlling it.

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Design of hybrid PLA/PBS/POM composite based on In-Situ formation of interpenetrating fiber networks

Cited by 7 publications

References 39 publications

Mechanical, thermal properties and shape memory behaviors of PLA/PCL/PLA‐g‐GMA blends

Mechanical, thermal properties and shape memory behaviors of PLA/PCL/PLA‐g‐GMA blends

BNN/TiO₂ nanocomposite system–modified dental flow resins and the mechanism of the enhancement of mechanical and antibacterial properties

Approaches to Control Crazing Deformation of PHA-Based Biopolymeric Blends

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Design of hybrid PLA/PBS/POM composite based on In-Situ formation of interpenetrating fiber networks

Cited by 7 publications

References 39 publications

Mechanical, thermal properties and shape memory behaviors of PLA/PCL/PLA‐g‐GMA blends

Mechanical, thermal properties and shape memory behaviors of PLA/PCL/PLA‐g‐GMA blends

BNN/TiO2 nanocomposite system–modified dental flow resins and the mechanism of the enhancement of mechanical and antibacterial properties

Approaches to Control Crazing Deformation of PHA-Based Biopolymeric Blends

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BNN/TiO₂ nanocomposite system–modified dental flow resins and the mechanism of the enhancement of mechanical and antibacterial properties