Studies on the effect of silicon carbide nanoparticles on the thermal, mechanical, and biodegradation properties of poly(caprolactone)

Mdletshe, Thembinkosi S.; Mishra, Shivani B.; Mishra, Ajay Kumar

doi:10.1002/app.42145

Cited by 12 publications

(10 citation statements)

References 28 publications

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“…This will contribute to a reduction in the environmental pollution caused by plastic waste, and also conserve petrochemical resources [2][3][4][5]. Biodegradable polymers are mainly synthesized from renewable natural resources and they degrade over a period of time through enzymolysis of microorganisms when exposed to a natural environment [2].…”

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confidence: 99%

Review on PCL, PBS, and PCL/PBS blends containing carbon nanotubes

Gumede¹,

Luyt²,

Müller³

2018

Express Polym. Lett.

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Abstract. Biodegradable polymers received considerable attention due to their contribution in the reduction of environmental concerns and the realization that global petroleum resources are finite. The development of double crystalline biobased blends such as poly(ε-caprolactone) (PCL) and poly(butylene succinate) (PBS) are particularly interesting because each component has an influence on the crystallization behaviour of the other component, and thus influences the strength and mechanical properties of a polymer blend. The lack of miscibility between PCL and PBS constitutes a bottleneck, and efforts have been made to improve the miscibility through the inclusion of copolymers. Having realized that incorporating conductive nanofillers such as carbon nanotubes (CNTs), (especially when the CNTs are functionalized or used as a masterbatch i.e., polycarbonate/MWCNTs masterbatch), into biopolymer matrices, can enhance the thermal and mechanical properties, as well as electrical and thermal conductivity, a lot of research was aimed at the production of bionanocomposites. This review paper discusses the properties of PCL, PBS, their blends, and their CNTs containing nanocomposites.

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confidence: 99%

Review on PCL, PBS, and PCL/PBS blends containing carbon nanotubes

Gumede¹,

Luyt²,

Müller³

2018

Express Polym. Lett.

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“…It can been seen that the T g increases with increasing content of nanosilica, and the higher T g in PCL/ SAN/A200 blends indicates weaker chain mobility. 12 What's more, the ability to act as nucleating agent for PCL is limited for the hydrophobic nanosilica and the hydrophilic nanosilica are more effective relatively. In PCL/SAN-30/Nanosilica blends, the evolution of the relative crystallinity vs. time is displayed in Figure 11(a,b).…”

Section: Isothermal Crystallization Morphology Of Pcl/san/nanosilica mentioning

confidence: 99%

“…In PCL/SAN-30/Nanosilica blends, the evolution of the relative crystallinity vs. time is displayed in Figure 11(a,b). 10,12,37,38 The heterogeneous nucleation effect of high content of A200 (>1 wt %) should dominate over growth restriction effect on the crystallization behavior. In the investigated content range, the crystallization half-time t 1/2 of all blends filled with R974 increases with increasing content, while t 1/2 increases at low content, and then declines as nanosilica content increasing in PCL/SAN-30/A200 blends as shown in Figure 11(c).…”

Section: Isothermal Crystallization Morphology Of Pcl/san/nanosilica mentioning

confidence: 99%

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Morphology and crystallization behavior of PCL/SAN blends containing nanosilica with different surface properties

Qian

Xiao

Dong

et al. 2016

J of Applied Polymer Sci

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Morphology and crystallization behavior of poly(E-caprolactone) (PCL) in its 80/20 blends with poly(styrene-co-acrylonitrile) (SAN) containing hydrophobic or hydrophilic nanosilica was investigated. It was found that hydrophilic nanosilica displayed a more significant refinement effect on co-continuous morphology of PCL/SAN blends than hydrophobic nanosilica for its selective distribution within the PCL matrix but closer to the two-phase interface. Ring-banded spherulites were observed in both kinds of nanosilica-filled blends, the periodic distance of which decreased with increasing nanosilica content. Hydrophilic nanosilica reduced the dependence of the periodic distance of ring-banded spherulites on the crystallization temperature more efficiently than hydrophobic nanosilica. Furthermore, crystallization process of PCL/SAN blends filled with hydrophobic nanosilica was suppressed as the restriction effect of nanosilica on the crystal growth always outweighed their heterogeneous nucleation effect. In contrast, low content of hydrophilic nanosilica ( 1 wt %) were more likely to exhibit growth restriction effect rather than nucleation effect, whereas heterogeneous nucleation effect of higher content of hydrophilic nanosilica (>1 wt %) dominated over growth restriction effect on facilitating the crystallization behavior.

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“…presented an effective approach for the synthesis of a core‐shell Si hybrid nanocomposite prepared by emulsion polymerization . They have claimed that the nanocomposite with polyacrylonitrile (PAN) as a shell and Si nanoparticles as the core could be applied successfully to Si‐based electrode materials . In addition, Kwon et al .…”

Section: Introductionmentioning

confidence: 99%

Preparation of hybrid composite microspheres containing nanosilicon via microsuspension polymerization

Liu

Wang

Zhou

et al. 2015

J of Applied Polymer Sci

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Hybrid composite microspheres with nano-Si as the core and poly(styrene-co-acrylonitrile) as a shell are successfully prepared by a two-step polymerization technique, which includes dispersion polymerization of styrene and 3-methacryloxypropyl trimethoxysilane in ethanol for surface modification of nano-Si followed by microsuspension polymerization of styrene and acrylonitrile in an aqueous phase for encapsulating nano-Si into an SAN copolymer matrix. The structure and surface properties of modified nanoSi are investigated by Fourier transform infrared spectroscopy (FTIR) and contact angle. The hybrid composite microspheres are systematically characterized by energy dispersive spectroscopy, thermogravimetric analysis, and transmission electron microscopy (TEM). According to the FTIR spectra and the contact angle experiments, it was determined that a hydrophobic polymer layer was formed on the surface of nano-Si. TEM showed that nano-Si was homogeneously dispersed in SAN particles when the loading capacity of nano-Si in the hybrid composite microspheres was less than 20 wt %. Moreover, scanning electron microscopy and X-ray photoelectron spectroscopy revealed that there were large amounts of nano-Si absorbed on the surface of the hybrid composite microspheres, and the mean particle size became much larger when the loading amounts of nano-Si reached 25 wt %. From this, it can be inferred that nano-Si overflows from the inner core to the outside surface in the emulsification process and acts as an inorganic dispersant.

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Studies on the effect of silicon carbide nanoparticles on the thermal, mechanical, and biodegradation properties of poly(caprolactone)

Cited by 12 publications

References 28 publications

Review on PCL, PBS, and PCL/PBS blends containing carbon nanotubes

Review on PCL, PBS, and PCL/PBS blends containing carbon nanotubes

Morphology and crystallization behavior of PCL/SAN blends containing nanosilica with different surface properties

Preparation of hybrid composite microspheres containing nanosilicon via microsuspension polymerization

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