Influence of surface modification of zinc oxide on physical properties of high density polyethylene

Gao, Wei; Li, Yufeng; Zhao, Jitao; Zhang, Zhe; Tang, Weiwei

doi:10.1016/j.colsurfa.2022.130000

Cited by 6 publications

(11 citation statements)

References 43 publications

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“…In addition, the rHDPE showed the incorporation of metal particles more clearly, with more homogenous dispersion for HDPE and rHDPE modified with Cu-NPs. Figure 4 also reveals an agglomerated distribution of Cu-NCs in rHDPE, with the size of the agglomerates being close to 4 µm, as reported by Gao et al [ 38 ]. Figure 4 shows FE-SEM images of the HDPE with a higher magnification.…”

Section: Resultssupporting

confidence: 81%

“…In contrast, the

increases for HDPE with Cu-NPs and Cu-NCS are shown in Table 1 . Similarly, Gao et al [ 38 ] reported that the addition of ZnO nano-particles increases the

in concentrations between 1 and 5 wt. %.…”

Section: Resultsmentioning

confidence: 87%

“…The incorporation of Cu-NPs in the virgin and recycled matrix of HDPE decreases the

between 1 and 2 °C, which was more drastic with Cu-NCs, reducing by 3 °C. According to Gao et al [ 38 ] the

did not decrease their value with the addition of nanoparticles in the virgin HDPE matrix, such as graphene oxide [ 41 ], ZrO 2 [ 42 ], titanate nanotubes (Y 2 W 3 O 12 ) [ 41 ], SnO 2 [ 43 ], and ZnO [ 38 ]. Therefore, the effect on

due to incorporating Cu nanoparticles suggests an enhancement in the thermal properties of the HDPE matrix.…”

Section: Resultsmentioning

confidence: 99%

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The Effect of the Addition of Copper Particles in High-Density Recycled Polyethylene Matrices by Extrusion

et al. 2022

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In this study, the effect of the recycling process and copper particle incorporation on virgin and recycled pellet HDPE were investigated by thermo-chemical analysis, mechanical characterization, and antibacterial analysis. Copper particles were added to pellet HDPE, virgin and recycled, using a tabletop single screw extruder. Some copper particles, called copper nano-particles (Cu-NPs), had a spherical morphology and an average particle size near 20 nm. The others had a cubic morphology and an average particle size close to 300 nm, labeled copper nano-cubes (Cu-NCs). The thermo-chemical analysis revealed that the degree of crystallization was not influenced by the recycling process: 55.38 % for virgin HDPE and 56.01% for recycled HDPE. The degree of crystallization decreased with the addition of the copper particles. Possibly due to a modification in the structure, packaging organization, and crystalline ordering, the recycled HDPE reached a degree of crystallization close to 44.78% with 0.5 wt.% copper nano-particles and close to 36.57% for the recycled HDPE modified with 0.7 wt.% Cu-NCs. Tensile tests revealed a slight reduction in the tensile strength related to the recycling process, being close to 26 MPa for the virgin HDPE and 15.99 MPa for the recycled HDPE, which was improved by adding copper particles, which were near 25.39 MPa for 0.7 wt.% copper nano-cubes. Antibacterial analysis showed a reduction in the viability of E. coli in virgin HDPE samples, which was close to 8% for HDPE containing copper nano-particles and lower than 2% for HDPE having copper nano-cubes. In contrast, the recycled HDPE revealed viability close to 95% for HDPE with copper nano-particles and nearly 50% for HDPE with copper nano-cubes. The viability of S. aureus for HDPE was lower than containing copper nano-particles and copper nano-cubes, which increased dramatically close to 80% for recycled HDPE with copper nano-particles 80% and 75% with copper nano-cubes.

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Section: Resultssupporting

confidence: 81%

“…In contrast, the

increases for HDPE with Cu-NPs and Cu-NCS are shown in Table 1 . Similarly, Gao et al [ 38 ] reported that the addition of ZnO nano-particles increases the

in concentrations between 1 and 5 wt. %.…”

Section: Resultsmentioning

confidence: 87%

“…The incorporation of Cu-NPs in the virgin and recycled matrix of HDPE decreases the

between 1 and 2 °C, which was more drastic with Cu-NCs, reducing by 3 °C. According to Gao et al [ 38 ] the

due to incorporating Cu nanoparticles suggests an enhancement in the thermal properties of the HDPE matrix.…”

Section: Resultsmentioning

confidence: 99%

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The Effect of the Addition of Copper Particles in High-Density Recycled Polyethylene Matrices by Extrusion

et al. 2022

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“…15,23 On other hand, in order to obtain good H 2 S-resistant ability, it is essential to introduce a great amount of fillers, which are not conducive to well dispersion in the polymeric matrix and acquirement of sufficient mechanical properties and high gas barrier properties. 11,15,23,24 Generation of reactive functional groups on the surface of inorganic fillers via modification by polydopamine or coupling agents such as silanes and introduction of maleic anhydride-grafted copolymers as compatibilizers are able to enhance the dispersion of the inorganic particles. 12,[23][24][25][26][27][28][29] Moreover, application of appropriate compatibilizers can increase the interfacial adhesion between the fillers and the polymer, which is favorable to improvement of tensile properties of composites.…”

Section: Introductionmentioning

confidence: 99%

Improvement of mechanical properties of highly ZnO‐filled polyethylene composites by dual‐compatibilizer for hydrogen sulfide permeation inhibition

Shi,

Zhu,

Yuan

2024

Polymers for Advanced Techs

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Transportation of acidic fluids containing hydrogen sulfide (H2S) by flexible reinforced thermoplastic pipes can cause safety problems due to diffusion of H2S in the pipe. Herein, high‐density polyethylene (HDPE) composites are prepared with a large amount of zinc oxide (ZnO) particles as absorbent fillers by melt‐mixing via introducing maleic anhydride‐grafted polyethylene (PE‐g‐MAH) and maleic anhydride‐grafted poly(ethylene‐co‐octene) (POE‐g‐MAH) as dual‐compatibilizer. By controlling the mass ratio of the two compatibilizers, ZnO particles can be encapsulated by PE‐g‐MAH and POE‐g‐MAH so that mechanical properties of the prepared HDPE/ZnO composites are improved owing to enhanced compatibility between the filler and the resin. By adding PE‐g‐MAH and POE‐g‐MAH with total 10 wt% in a mass ratio of 1/3, the HDPE/ZnO composite containing 50 wt% ZnO exhibits 37.3 ± 3.8 MPa of yield strength, 576 ± 16 MPa of flexural modulus, and 84.4 ± 1.4 kJ m−2 of notched Izod impact strength corrected to 311 ± 24.9 kJ m−2. After exposure in H2S at 0.1 MPa for 7 days, the diffusion distance of H2S in the composite is 659 ± 17 μm, demonstrating a high barrier ability on H2S via absorption. This study provides a feasible method for preparation of polymer composites with suitable mechanical properties for inhibiting H2S permeation in reinforced thermoplastic pipes.

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“…Among others, ZnO is one of the most potential materials due to its unique properties like self-cleaning, antimicrobial, and excellent UV-blocker properties [15,16]. Moreover, the versatile surface properties of ZnO including large surface/volume ratio, higher surface area, and surface reactivity provide ample opportunity for its functionalization with organic and inorganic compounds through covalent or non-covalent bonding [17][18][19][20][21][22].…”

Section: Introductionmentioning

confidence: 99%

Multifunctional ZnO nanostructures: a next generation nanomedicine for cancer therapy, targeted drug delivery, bioimaging, and tissue regeneration

2023

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Zinc oxide nanostructures (ZnO NSs) are one of the most versatile and promising metal oxides having significant importance in biomedical fields, especially for therapeutic and diagnostic purposes. ZnO possesses unique physio-chemical and biological properties such as photo-chemical stability, corrosion resistance, mechanical properties, biocompatibility, higher targeting capability, and ROS-triggered cytotoxicity. These ZnO NSs enhance their potential for various biomedical applications such as cancer therapy, drug delivery, bioimaging, tissue engineering, etc. Furthermore, ZnO possesses excellent luminescent properties that make it useful for bioimaging and image-guided targeted drug delivery, thereby reducing the unwanted side effects of chemotherapeutic agents. Besides, these characteristics, enhanced permeability and retention (EPR) effect, electrostatic interaction, ROS production, and pH-dependent dissolution of ZnO also make them potential aspirants as therapeutics that are suggested as keys parameter for cytotoxic and cell death mechanisms via apoptosis, autophagy, and mitophagy mechanism. Here, the recent progress and advances of ZnO NSs in bioimaging, drug delivery, and tissue engineering are discussed along with the advantages, limitations, and future advancement for biological applications.

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Influence of surface modification of zinc oxide on physical properties of high density polyethylene

Cited by 6 publications

References 43 publications

The Effect of the Addition of Copper Particles in High-Density Recycled Polyethylene Matrices by Extrusion

The Effect of the Addition of Copper Particles in High-Density Recycled Polyethylene Matrices by Extrusion

Improvement of mechanical properties of highly ZnO‐filled polyethylene composites by dual‐compatibilizer for hydrogen sulfide permeation inhibition

Multifunctional ZnO nanostructures: a next generation nanomedicine for cancer therapy, targeted drug delivery, bioimaging, and tissue regeneration

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