Simultaneously toughening and reinforcing poly(lactic acid)/thermoplastic polyurethane blend via enhancing interfacial adhesion by hydrophobic silica nanoparticles

Yu, Feng; Huang, Hanxiong

doi:10.1016/j.polymertesting.2015.06.001

Cited by 99 publications

(44 citation statements)

References 29 publications

(33 reference statements)

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“…Kinetics of polymer degradation is affected both by the environment conditions and by the polymer structure and their physical properties. Properties and degradability of physical blends of linear polyurethanes and polylactide are quite often investigated (Imre et al 2013 ; Brzeska et al 2015c ; Jašo et al 2015 ; Yu and Huang 2015 ; Jing et al 2015 ), especially with reference to their potential usability for medical applications (Grzesiak et al 2015 ; Saini et al 2016 ). Whereas, blends of cross-linked polyurethane with polylactide are tested much less frequently (Gurunathan et al 2014 ).…”

Section: Introductionmentioning

confidence: 99%

Degradability of cross-linked polyurethanes based on synthetic polyhydroxybutyrate and modified with polylactide

et al. 2017

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In many areas of application of conventional non-degradable cross-linked polyurethanes (PUR), there is a need for their degradation under the influence of specific environmental factors. It is practiced by incorporation of sensitive to degradation compounds (usually of natural origin) into the polyurethane structure, or by mixing them with polyurethanes. Cross-linked polyurethanes (with 10 and 30%wt amount of synthetic poly([R,S]-3-hydroxybutyrate) (R,S-PHB) in soft segments) and their physical blends with poly([d,l]-lactide) (PDLLA) were investigated and then degraded under hydrolytic (phosphate buffer solution) and oxidative (CoCl2/H2O2) conditions. The rate of degradation was monitored by changes of samples mass, morphology of surface and their thermal properties. Despite the small weight losses of samples, the changes of thermal properties of polymers and topography of their surface indicated that they were susceptible to gradual degradation under oxidative and hydrolytic conditions. Blends of PDLLA and polyurethane with 30 wt% of R,S-PHB in soft segments and PUR/PDLLA blends absorbed more water and degraded faster than polyurethane with low amount of R,S-PHB.

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Section: Introductionmentioning

confidence: 99%

Degradability of cross-linked polyurethanes based on synthetic polyhydroxybutyrate and modified with polylactide

et al. 2017

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“…Silica nanoparticles are also known to inhibit phase separation. Numerous studies have reported on enhanced interfacial adhesion between the matrix and domain due to silica nanoparticles [ 17 , 18 , 20 , 35 ]. These particles enhance the compatibility by increasing the interfacial adhesion for PLA/LDPE, [ 18 ] PLA/PMMA [ 35 ], and PLA/PBAT blends [ 20 ].…”

Section: Resultsmentioning

confidence: 99%

“…It has a strong polarity due to the presence of the hydroxyl group on the surface, rendering it difficult to disperse as agglomerates in polymer composite preparation. Numerous studies have reported the dispersion of silica nanoparticles in composites via surface pretreatment of modifications [ 15 , 16 , 17 , 18 , 19 ]. Yan et al [ 15 ] reported that a modified L-lactic acid oligomer on the silica surface was dispersed in the PLA matrix, resulting in increased toughness and tensile strength.…”

Section: Introductionmentioning

confidence: 99%

“…Zhu et al [ 16 ] reported that oleic-acid-modified silica nanoparticles increased the dispersibility and interfacial adhesion of PLA nanocomposites compared to those of unfilled PLA. Yu et al [ 17 ] used hydrophobic silica particles to increase the impact strength and tensile toughness of PLA/elastomer blends. Lv et al [ 19 ] reported an enhanced mechanical and thermal stability achieved by modifying a silane coupling agent with epoxy on the surface of silica nanoparticles.…”

Section: Introductionmentioning

confidence: 99%

“…In addition, silica nanoparticles can improve the compatibility between PLA and LDPE phases, thus increasing the toughness and crystallinity of the final material. Silica nanoparticles stabilize the interface between the matrix and domain, thereby enhancing the compatibility and mechanical properties [ 17 , 18 , 20 ]. As the literature reports, the crystallization behavior of PLA can be enhanced by using various additives as nucleating agents [ 16 , 21 , 22 , 23 , 24 , 25 , 26 , 27 , 28 , 29 , 30 , 31 , 32 , 33 , 34 ].…”

Section: Introductionmentioning

confidence: 99%

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Effect of PMMA/Silica Hybrid Particles on Interfacial Adhesion and Crystallization Properties of Poly(lactic acid)/Block Acrylic Elastomer Composites

et al. 2020

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Poly(lactic acid) (PLA) is a relatively brittle polymer, and its low melt strength, ductility, and thermal stability limit its use in various industrial applications. This study aimed to investigate the effect of poly(methyl methacrylate) (PMMA) and PMMA/silica hybrid particles on the mechanical properties, interfacial adhesion, and crystallization behavior of PLA/block acrylic elastomer. PLA/block acrylic elastomer blends exhibit improved flexibility; however, phase separation occurs between PLA and block acrylic elastomer domains. Valid time-temperature superposition (TTS) measurements of viscoelastic behavior were obtained and exhibited interfacial adhesion with the addition of PMMA or PMMA/silica in PLA/block acrylic elastomer blends. In particular, the phase separation temperature was increased by the incorporation of PMMA/silica hybrid particles, which suggests a potential role for these particles in improving the phase stability. In addition, PMMA inhibits crystallization, while PMMA/silica acts as a nucleating agent, thus increasing the crystallization rate and crystallinity degree.

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Gupta¹,

Kumawat²,

Ghosh³

et al. 2022

Poly(Lactic Acid)

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Simultaneously toughening and reinforcing poly(lactic acid)/thermoplastic polyurethane blend via enhancing interfacial adhesion by hydrophobic silica nanoparticles

Cited by 99 publications

References 29 publications

Degradability of cross-linked polyurethanes based on synthetic polyhydroxybutyrate and modified with polylactide

Degradability of cross-linked polyurethanes based on synthetic polyhydroxybutyrate and modified with polylactide

Effect of PMMA/Silica Hybrid Particles on Interfacial Adhesion and Crystallization Properties of Poly(lactic acid)/Block Acrylic Elastomer Composites

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