Investigating the mechanical, thermal and melt flow index properties of HNTs – LLDPE nano composites for the applications of rotational moulding

Sangeetha, V.; Gopinath, Dinesh; Prithivirajan, R.; Chandran, V. Girish; Ravi, Kumar Satish

doi:10.1016/j.polymertesting.2020.106595

Cited by 21 publications

(18 citation statements)

References 47 publications

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“…The outer surface of HNTs is chemically similar to FS, but the density of the surface hydroxyl groups of HNT is considerably smaller than FS, while the property of the inner cylinder core is related to Al 2 O 3. [17] Halloysite nanotubes have many benefits compared to other tubular nanoparticles such as carbon nanotubes (CNTs), including cost-effective, non-toxic in nature, biocompatible and eco-friendly, abundant availability, making them a popular filler for polymeric materials. [17][18][19][20] The benefits of fumed silica are commercial availability, industrial synthesis convenience, and competitive cost compared to other nanoparticles.…”

Section: Introductionmentioning

confidence: 99%

“…[17] Halloysite nanotubes have many benefits compared to other tubular nanoparticles such as carbon nanotubes (CNTs), including cost-effective, non-toxic in nature, biocompatible and eco-friendly, abundant availability, making them a popular filler for polymeric materials. [17][18][19][20] The benefits of fumed silica are commercial availability, industrial synthesis convenience, and competitive cost compared to other nanoparticles. [21][22][23][24][25] Few authors studied the effects of FS and HNT in polymers, comparatively.…”

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Effect of fumed silica and halloysite nanoparticles on the microstructure, mechanical, and fracture properties of thermoplastic polyolefin elastomer toughened polypropylene

et al. 2022

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In this article, mechanical and fracture properties of two types of nanoparticles, namely fumed silica (FS) and halloysite nanotube filled polypropylene (PP) toughened with two types of thermoplastic elastomers (TPOs), namely ethylene-based TPO (ETPO) and propylene-based TPO (PTPO) were investigated. A full factorial design was exploited to clarify the influence of each factor as well as its interaction on outcomes. The essential work of fracture (EWF) approach was utilized to study the effect of each factor on fracture behavior. The addition of TPO enhanced the elongation at break and non-EWF by 62% and 40%, in turn. In addition, the tensile strength, modulus, and EWF increased by 8%, 34%, and 7%, respectively, by increasing the nanoparticles up to 1 wt%. The blend nanocomposite with 10 wt% of PTPO and 1 wt% of FS was selected as the best stiffnesstoughness-strength equivalence based on optimization results. Additionally, the R 2 extracted from the analysis of variance (ANOVA) and plots of normal probability indicated good agreement between the experimental data and for foreseen one using full factorial models.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Effect of fumed silica and halloysite nanoparticles on the microstructure, mechanical, and fracture properties of thermoplastic polyolefin elastomer toughened polypropylene

et al. 2022

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“…Recently, researchers have focused on nanoscale reinforcements such as carbon nanotubes (CNTs), 17,18 SiO 2 , 19,20 MC, [21][22][23] graphene, 24 Al 2 O 3 , 25,26 SiC, 27 and HNC 28,29 to fabricate multiscale composites. Nanoscale reinforcements have positively improved the mechanical, physical, chemical, and thermal properties of composites.…”

Section: Introductionmentioning

confidence: 99%

Novel energy absorbent composites for crashworthiness applications

El‐baky

Hegazy

Hassan

2022

Journal of Industrial Textiles

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Glass reinforced epoxy composite tubes filled with 1, 2, 3, and 4 wt. % of HNC, MC, Al2O3, SiO2, and SiC nanofillers were fabricated using wet-wrapping process by hand lay-up and tested under quasi-static axial loadings. Crashworthiness parameters and failure modes were recorded. Results indicated that EAC and the specimens’ failure modes are dominated by the type and wt. % of the embedded nanofillers. As compared to pristine glass/epoxy tubes, an enhancement of 230.42, 243.30, 286.43, and 336.12% in the absorbed energy ( U) was attained by the addition of 1, 2, 3, and 4 wt. % of HNC, respectively. An improvement of 21.93, 87.35, 225.99, and 318.07% in U was achieved by the inclusion of 1, 2, 3, and 4 wt. % of MC, respectively. An enhancement of 17.66, 51.63, and 71.94% in U was reported by the integration of 1, 2, and 3% of nano-Al2O3. Whilst a reduction of 31.16% was noticed for 4 wt. % of nano-Al2O3. The incorporation of nano-SiO2 and nano-SiC exhibits a reduction in U of the fabricated tubes. Composites filled with 4 wt. % of HNC has the highest load carrying capacity and EAC of 32.75 kN and 1110.84 J, respectively. So, they seem to be the best appropriate choice for energy absorbing elements. Glass/epoxy composite tubes filled with HNC, MC, and Al2O3 show outstanding energy absorption characteristics. However, specimens filled with SiO2 and SiC nanofillers are ineffective in the crashworthiness applications.

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“…Mainly the research is focused by various investigators on addition of synthetic fillers in the polymer matrix composites to increase their mechanical, thermal properties even though it creates more ecological problems during processing and nonbiodegradable. [1,[18][19][20][21][22][23] Later it is shifted to incorporate the natural fibers due to nontoxic, low cost, light weight, biodegradable, eco-friendly, renewability, and abundant availability. [1,3,[24][25][26][27][28][29][30] The selection of synthetic fillers plays a vital role in the formation of uniform transfer layer under tribological environment.…”

Section: Introductionmentioning

confidence: 99%

Investigations on effectiveness of transfer layer on specific wear rate and coefficient of friction during dry sliding of hybrid polymer matrix composites

Subramanian¹,

Ramasubramanian

Selvam³

et al. 2021

Polymer Composites

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The formation of transfer layer especially in polymer-based composites is unavoidable and essential to investigate the effectiveness of transfer layer under working conditions as it decides the material removal between mating parts. The main aim of the present work is to analyze the performance of transfer layer on specific wear rate (SWR) and coefficient of friction (COF) during dry sliding of hexagonal boron nitride (h-BN)/prosopis juliflora (PJ) reinforced polymer matrix composite. The mechanical test results exhibited that 136.4%, 145.7%, and 106.2% improvement in hardness, tensile and flexural properties of the hybrid composites compared to pure epoxy. Pin on disc wear test results showed that 15 wt% of h-BN and 5 wt% of PJ reinforced hybrid composite produced better wear performance of minimum COF as 0.0912 and SWR as 0.0000151 mm 3 /Nm. ANOVA analysis results showed that load is major contributing parameter on COF and SWR and their percentage of contribution as 25.40% and 79.38% respectively. Worn surface analysis revealed that the reason behind transfer layer formation and its effectiveness under sliding conditions. The major wear mechanisms are identified as micro cutting and micro plowing followed by matrix crack, fiber debonding, and fiber pull out.

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Investigating the mechanical, thermal and melt flow index properties of HNTs – LLDPE nano composites for the applications of rotational moulding

Cited by 21 publications

References 47 publications

Effect of fumed silica and halloysite nanoparticles on the microstructure, mechanical, and fracture properties of thermoplastic polyolefin elastomer toughened polypropylene

Effect of fumed silica and halloysite nanoparticles on the microstructure, mechanical, and fracture properties of thermoplastic polyolefin elastomer toughened polypropylene

Novel energy absorbent composites for crashworthiness applications

Investigations on effectiveness of transfer layer on specific wear rate and coefficient of friction during dry sliding of hybrid polymer matrix composites

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