Effect of starch nanoparticles on the crystallization kinetics and photodegradation of high density polyethylene

Amigó, Nicolás; Palza, Humberto; Canales, Daniel; Sepúlveda, Francesca Antonella; Vasco, Diego A.; Zapata, Paula Andrea

doi:10.1016/j.compositesb.2019.106979

Cited by 41 publications

(33 citation statements)

References 42 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The method used for the organic modification of the CaO nanoparticles was based on Li and Zhu [ 36 ] and was verified by the FTIR spectra shown in Figure 3 . Our research group had modified other nanoparticles (TiO 2 , zinc, silver, and starch) with oleic acid, showing that the modified nanoparticles present better dispersion in the PE polymer and therefore better properties than unmodified nanoparticles [ 8 , 11 , 37 , 38 ]. The characteristic peaks of CaO nanoparticles appeared at 3400 cm −1 due to hydrogen-bonded hydroxyl groups (O–H).…”

Section: Resultsmentioning

confidence: 99%

“…The modified nanoparticles had a small signal corresponding to the stretching of the carbonyl group of oleic acid at 1710 cm −1 , with the decrease in the peak indicating that the carboxylic acid group of oleic acid, –COOH, has reacted with surface hydroxyl groups from the CaO nanoparticles. Three other peaks should appear at 1590 cm −1 , corresponding to carboxylate groups, and at 1550 cm −1 and 1430 cm −1 , corresponding to COO−, but these peaks overlap with the characteristic peak at 1490 cm −1 of CaO [ 37 , 38 ].…”

Section: Resultsmentioning

confidence: 99%

“…The nanoparticles were modified with oleic acid using the method reported by Li, Zhu, and our research group [ 36 , 37 , 38 , 39 ]. Oleic acid (400 µL) and n-hexane (50 mL) were mixed with stirring.…”

Section: Methodsmentioning

confidence: 99%

See 2 more Smart Citations

Mechanical and Antimicrobial Polyethylene Composites with CaO Nanoparticles

et al. 2020

Self Cite

View full text Add to dashboard Cite

Low-density polyethylene composites containing different sizes of calcium oxide (CaO) nanoparticles were obtained by melt mixing. The CaO nanoparticles were synthesized by either the sol-gel or sonication methods, obtaining two different sizes: ca. 55 nm and 25 nm. These nanoparticles were used either as-synthesized or were modified organically on the surface with oleic acid (Mod-CaO), at concentrations of 3, 5, and 10 wt% in the polymer. The Mod-CaO nanoparticles of 25 nm can act as nucleating agents, increasing the polymer’s crystallinity. The Young’s Modulus increased with the Mod-CaO nanoparticles, rendering higher reinforcement effects with an increase as high as 36%. The reduction in Escherichia coli bacteria in the nanocomposites increased with the amount of CaO nanoparticles, the size reduction, and the surface modification. The highest antimicrobial behavior was found in the composites with a Mod-CaO of 25 nm, presenting a reduction of 99.99%. This strong antimicrobial effect can be associated with the release of the Ca2+ from the composites, as studied for the composite with 10 wt% nanoparticles. The ion release was dependent on the size of the nanoparticles and their surface modification. These findings show that CaO nanoparticles are an excellent alternative as an antimicrobial filler in polymer nanocomposites to be applied for food packaging or medical devices.

show abstract

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

See 1 more Smart Citation

Mechanical and Antimicrobial Polyethylene Composites with CaO Nanoparticles

et al. 2020

Self Cite

View full text Add to dashboard Cite

show abstract

“…Graphene by itself is unsuitable for interaction with polymers chain because graphene is hydrophobic [213], so there is a high probability of graphene to pile in a polymer matrix, so to remove this agglomeration of graphene in polymer matrix modification of graphene using chemical, electrochemical, pi-pi interaction [214] is usually needed. Organic molecules can be the functional groups connected to graphene or polymer chains [214,215].…”

Section: Limitationsmentioning

confidence: 99%

A review on graphene based transition metal oxide composites and its application towards supercapacitor electrodes

Hussain

Ihrar

et al. 2020

SN Appl. Sci.

View full text Add to dashboard Cite

Two-dimensional (2D) graphene and its outstanding properties such as, enormous conductivities, mechanical strength, optical and electrical properties brought it one of the most studied materials for the production of energy using renewable resources. The composites of graphene with the same morphological materials such as layered transition metal oxides will be the most aspiring combination to boost their conducting, optoelectronic and mechanical properties. Furthermore, the transition metal chalcogenides materials attracted significant attention due to their atomically thin layers and enormous optical, conducting and electrical properties. The layered materials offer mostly atomically thin 2D plane to the charge carrier with superior conducting properties. The thickness at atomic level, band gap, spin orbit coupling electronic and optoelectronics properties of transition metal dichalcogenides makes them one of the promising entities in energy harvesting technologies. The review suggests some strategies to improve the transition metals-composites stability conducting properties to be tailored in various applications.

show abstract

“…The broad absorption band at 3390 cm −1 was ascribed to the stretching occurring in the -OH group [ 36 , 37 ]. The band indicated rice husk and starch had a considerable amount of surface absorbed moisture [ 38 ]. The peak at 2950 cm −1 was assigned to C-H stretching vibration.…”

Section: Resultsmentioning

confidence: 99%

Characterization and Biodegradability of Rice Husk-Filled Polymer Composites

et al. 2020

View full text Add to dashboard Cite

The fabrication of affordable biodegradable plastics remains a challenging issue for both the scientific community and industries as mechanical properties and biodegradability improve at the expense of the high cost of the material. Hence, the present work deals with fabrication and characterization of biodegradable polymer with 40% rice husk waste filler and 60% polymer-containing mixture of polybutylene succinate (PBS) and poly butylenes adipate-Co-terephthalate (PBAT) to achieve good mechanical properties, 92% biodegradation in six months, and competitive pricing. The challenge in incorporating high amounts of hydrophilic nature filler material into hydrophobic PBS/PBAT was addressed by adding plasticizers such as glycerol and calcium stearate. The compatibilizers such as maleic anhydride (MA) and dicumyl peroxide (DCP) was used to improve the miscibility between hydrophobic PBS/PBAT and hydrophilic filler material. The component with the formulation of 24:36:40 (PBS/PBAT/TPRH) possessed the tensile strength of 14.27 MPa, modulus of 200.43 MPa, and elongation at break of 12.99%, which was suitable for the production of molded products such as a tray, lunch box, and straw. The obtained composite polymer achieved 92% mass loss after six months of soil burial test confirming its biodegradability.

show abstract

Effect of starch nanoparticles on the crystallization kinetics and photodegradation of high density polyethylene

Cited by 41 publications

References 42 publications

Mechanical and Antimicrobial Polyethylene Composites with CaO Nanoparticles

Mechanical and Antimicrobial Polyethylene Composites with CaO Nanoparticles

A review on graphene based transition metal oxide composites and its application towards supercapacitor electrodes

Characterization and Biodegradability of Rice Husk-Filled Polymer Composites

Contact Info

Product

Resources

About